Plant catalogue
Georgia
4,769 plants in the catalogue. 2,365 scored native plants. 1,804 plants without a resolved native score. Find natives for your garden → Plants by wildlife
A
- Abrus precatorius Abrus precatorius —
- Acacia farnesiana Acacia farnesiana —
- Acacia macracantha Acacia macracantha —
- Acalypha setosa Acalypha setosa —
- Acanthospermum hispidum Acanthospermum hispidum —
- Achillea millefolium Achillea millefolium —
- Achillea millefolium var. occidentalis Achillea millefolium var. occidentalis —
- Acid-swamp Yellow-eyed-grass Xyris serotina 29
- Acmella oppositifolia Acmella oppositifolia —
- Aconitum uncinatum subsp. muticum Aconitum uncinatum subsp. muticum —
- Aconitum uncinatum subsp. uncinatum Aconitum uncinatum subsp. uncinatum —
- Adiantum hispidulum Adiantum hispidulum —
- Aeschynomene americana Aeschynomene americana —
- Aeschynomene viscidula Aeschynomene viscidula —
- Aesculus parviflora Aesculus parviflora —
- Agalinis divaricata Agalinis divaricata —
- Agalinis filicaulis Agalinis filicaulis —
- Agalinis filifolia Agalinis filifolia —
- Agalinis harperi Agalinis harperi 54
- Agalinis laxa Agalinis laxa —
- Agalinis pulchella Agalinis pulchella —
- Agalinis tenuifolia var. leucanthera Agalinis tenuifolia var. leucanthera —
- Agalinis tenuifolia var. macrophylla Agalinis tenuifolia var. macrophylla —
- Agalinis tenuifolia var. polyphylla Agalinis tenuifolia var. polyphylla —
- Ageratina altissima var. altissima Ageratina altissima var. altissima —
- Ageratina altissima var. roanensis Ageratina altissima var. roanensis —
- Ageratina jucunda Ageratina jucunda —
- Ageratum conyzoides Ageratum conyzoides —
- Agrimonia incisa Agrimonia incisa 33
- Aira caryophyllea var. caryophyllea Aira caryophyllea var. caryophyllea —
- Alabama Azalea Rhododendron alabamense —
- Alabama Grapefern Botrychium jenmanii 11
- Alabama Lipfern Cheilanthes alabamensis 8
- Alabama Snow Wreath Neviusia alabamensis —
- Albany Hawthorn Crataegus furtiva —
- Aletris bracteata Aletris bracteata —
- Aletris obovata Aletris obovata —
- Alfalfa Medicago sativa —
- Allegheny Blackberry Rubus allegheniensis 95
- Allegheny Blackberry Rubus allegheniensis var. allegheniensis —
- Allegheny Brookfoam Boykinia aconitifolia 8
- Allegheny Chinquapin Castanea pumila 86
- Allegheny Hawkweed Hieracium paniculatum 35
- Allegheny Monkey Flower Mimulus ringens var. ringens 40
- Allegheny Monkey-flower Mimulus ringens 40
- Allegheny Mountain Golden-banner Thermopsis mollis 36
- Allegheny Plum; Allegheny Sloe Prunus alabamensis —
- Allegheny Sedge Carex debilis var. pubera —
- Allegheny Serviceberry Amelanchier laevis 77
- Allegheny Stonecrop Hylotelephium telephioides 52
- Allegheny-spurge Pachysandra procumbens 13
- Alligator-weed Alternanthera philoxeroides -85
- Allium canadense var. canadense Allium canadense var. canadense —
- Allium neapolitanum Allium neapolitanum —
- Allium vineale subsp. vineale Allium vineale subsp. vineale —
- Aloe Yucca Yucca aloifolia 59
- Aloysia triphylla Aloysia triphylla —
- Alsike Clover Trifolium hybridum —
- Alstroemeria haemantha Alstroemeria haemantha —
- Alternanthera paronychioides var. paronychioides Alternanthera paronychioides var. paronychioides —
- Alternanthera pungens Alternanthera pungens —
- Alternanthera sessilis Alternanthera sessilis -30
- Alysicarpus vaginalis Alysicarpus vaginalis -30
- Amaranthus blitum var. emarginatus Amaranthus blitum var. emarginatus —
- Amazon Sprangletop Leptochloa panicoides —
- Ambrosia artemisiifolia var. paniculata Ambrosia artemisiifolia var. paniculata —
- Amelanchier arborea var. alabamensis Amelanchier arborea var. alabamensis —
- Amelanchier arborea var. austromontana Amelanchier arborea var. austromontana —
- Amelanchier sanguinea var. sanguinea Amelanchier sanguinea var. sanguinea —
- Amelanchier stolonifera Amelanchier stolonifera —
- American Alumroot Heuchera americana 25
- American Barberry Berberis canadensis 56
- American Barnyard Grass Echinochloa muricata var. microstachya —
- American Barnyard-grass Echinochloa muricata 37
- American Basswood Tilia americana 70
- American Basswood; American Linden Tilia americana var. caroliniana 68
- American Basswood; American Linden Tilia americana var. heterophylla 68
- American Beakgrass Diarrhena americana 8
- American Beautyberry Callicarpa americana 42
- American Beech Fagus grandifolia 72
- American Bittersweet Celastrus scandens 35
- American Bladdernut Staphylea trifolia 30
- American Bluehearts Buchnera americana 15
- American Bugleweed Lycopus americanus 33
- American Bugseed; American Bug Seed Corispermum americanum —
- American Bugseed; American Bug Seed Corispermum americanum var. americanum —
- American Bur-reed Sparganium americanum 40
- American Burnweed Erechtites hieraciifolius 23
- American Cancer-root Conopholis americana 8
- American Chaffseed Schwalbea americana 8
- American Chestnut Castanea dentata 86
- American Climbing Fern Lygodium palmatum 8
- American Columbo Frasera caroliniensis 24
- American Cupscale Sacciolepis striata 19
- American Dittany Cunila origanoides 13
- American Dog Violet Viola labradorica 77
- American Eelgrass Vallisneria americana 26
- American Elm Ulmus americana 76
- American Featherfoil Hottonia inflata 8
- American Fly-honeysuckle Lonicera canadensis 75
- American Frog's-bit Limnobium spongia 25
- American Germander Teucrium canadense 43
- American Ginseng Panax quinquefolius 15
- American Golden-saxifrage Chrysosplenium americanum 8
- American Gromwell Lithospermum latifolium —
- American Groundnut Apios americana 40
- American Halfchaff Sedge Lipocarpha maculata —
- American Hazelnut Corylus americana 56
- American Hog-peanut Amphicarpaea bracteata 44
- American Holly Ilex opaca 97
- American Hop-hornbeam Ostrya virginiana 65
- American Hornbeam Carpinus caroliniana 68
- American Ipecac Euphorbia ipecacuanhae 65
- American Ipecac Gillenia stipulata 17
- American Lopseed Phryma leptostachya 8
- American Lotus Nelumbo lutea 39
- American Lovage Ligusticum canadense 19
- American Mistletoe Phoradendron leucarpum 29
- American Mountain-ash Sorbus americana 64
- American Pennyroyal Hedeoma pulegioides 23
- American Persimmon Diospyros virginiana 75
- American Pillwort Pilularia americana —
- American Plum Prunus americana 100
- American Pokeweed Phytolacca americana 67
- American Searocket Cakile edentula 19
- American Senna Senna hebecarpa 65
- American Smoke Tree Cotinus obovatus —
- American Snowbell Styrax americanus 40
- American Spikenard Aralia racemosa 65
- American Strawberry-bush Euonymus americanus 53
- American Sycamore Platanus occidentalis 58
- American Water-plantain Alisma subcordatum 33
- American Water-willow Justicia americana 45
- American Waterwort Elatine americana —
- American Wild Carrot Daucus pusillus 67
- American Wisteria Wisteria frutescens 56
- American Witch-hazel Hamamelis virginiana 70
- American Witchgrass Dichanthelium sabulorum var. patulum 49
- Ammi majus Ammi majus —
- Amorpha georgiana var. georgiana Amorpha georgiana var. georgiana —
- Amphianthus pusillus Amphianthus pusillus —
- Amsonia ciliata var. ciliata Amsonia ciliata var. ciliata —
- Amsonia ciliata var. tenuifolia Amsonia ciliata var. tenuifolia —
- Amsonia ludoviciana Amsonia ludoviciana —
- Amsonia rigida Amsonia rigida —
- Amur Honeysuckle Lonicera maackii -55
- Amur Peppervine Ampelopsis brevipedunculata —
- Anagallis arvensis subsp. arvensis Anagallis arvensis subsp. arvensis —
- Anagallis minima Anagallis minima —
- Andropogon brachystachyus Andropogon brachystachyus —
- Andropogon floridanus Andropogon floridanus —
- Andropogon glaucopsis Andropogon glaucopsis —
- Andropogon glomeratus var. glomeratus Andropogon glomeratus var. glomeratus —
- Andropogon gyrans var. gyrans Andropogon gyrans var. gyrans —
- Andropogon longiberbis Andropogon longiberbis 54
- Andropogon ternarius var. ternarius Andropogon ternarius var. ternarius —
- Anemone quinquefolia var. quinquefolia Anemone quinquefolia var. quinquefolia —
- Angelica dentata Angelica dentata —
- Anglestem Beaksedge Rhynchospora caduca 44
- Anglestem Primrose-willow Ludwigia leptocarpa 58
- Annual Bluegrass Poa annua -30
- Annual Fimbry Fimbristylis annua 15
- Annual Fleabane Erigeron annuus 87
- Annual Honesty Lunaria annua —
- Annual Knawel Scleranthus annuus —
- Annual Lion's-ear Leonotis nepetifolia —
- Annual Marsh-elder Iva annua 36
- Annual Phlox Phlox drummondii —
- Annual Rabbit's-foot Grass Polypogon monspeliensis —
- Annual Saltmarsh Aster Symphyotrichum subulatum 93
- Annual Sand Bean; Trailing Fuzzy Bean; Amberique Bean; Annual Sandbean; Trailing Fuzzybean Sesbania drummondii —
- Annual Sea-blite Suaeda linearis 8
- Annual Trampweed Facelis retusa —
- Annual Wild-rice Zizania aquatica 44
- Antennaria parlinii subsp. fallax Antennaria parlinii subsp. fallax —
- Antennaria parlinii subsp. parlinii Antennaria parlinii subsp. parlinii —
- Anthaenantia rufa Anthaenantia rufa —
- Anthaenantia villosa Anthaenantia villosa —
- Anthoxanthum odoratum subsp. odoratum Anthoxanthum odoratum subsp. odoratum —
- Antigonon leptopus Antigonon leptopus —
- Appalachian Blazing-star Liatris squarrulosa 52
- Appalachian Bunchflower Veratrum parviflorum 27
- Appalachian Cliff Fern Woodsia appalachiana 8
- Appalachian Cow Wheat Melampyrum lineare var. latifolium —
- Appalachian Filmy-fern Trichomanes boschianum —
- Appalachian Goldenrod Solidago flaccidifolia 90
- Appalachian Rockcap Fern Polypodium appalachianum 19
- Appalachian Rose-gentian Sabatia capitata 14
- Appalachian Sandwort Minuartia glabra —
- Appalachian Sedge Carex appalachica 58
- Appalachian Shoestring Fern Vittaria appalachiana 8
- Appalachian Small Flower Phacelia Phacelia dubia var. dubia 48
- Appalachian Small Spreading Pogonia Cleistes bifaria 8
- Apple-of-Peru Nicandra physalodes —
- Apteria aphylla Apteria aphylla —
- Aquatic Milkweed Asclepias perennis 67
- Arabis georgiana Arabis georgiana —
- Arabis laevigata var. laevigata Arabis laevigata var. laevigata —
- Arabis missouriensis Arabis missouriensis —
- Arachis glabrata Arachis glabrata —
- Arachis hagenbeckii Arachis hagenbeckii —
- Aralia racemosa subsp. racemosa Aralia racemosa subsp. racemosa —
- Araujia sericifera Araujia sericifera —
- Arenaria lanuginosa subsp. lanuginosa Arenaria lanuginosa subsp. lanuginosa —
- Arenaria lanuginosa var. longipedunculata Arenaria lanuginosa var. longipedunculata —
- Argemone albiflora subsp. albiflora Argemone albiflora subsp. albiflora —
- Arisaema triphyllum subsp. pusillum Arisaema triphyllum subsp. pusillum —
- Arisaema triphyllum subsp. quinatum Arisaema triphyllum subsp. quinatum —
- Arisaema triphyllum subsp. triphyllum Arisaema triphyllum subsp. triphyllum —
- Aristida beyrichiana Aristida beyrichiana —
- Aristida dichotoma var. dichotoma Aristida dichotoma var. dichotoma —
- Aristida gyrans Aristida gyrans —
- Aristida longespica var. geniculata Aristida longespica var. geniculata —
- Aristida longespica var. longespica Aristida longespica var. longespica —
- Aristida mohrii Aristida mohrii —
- Aristida purpurascens var. purpurascens Aristida purpurascens var. purpurascens —
- Aristida spiciformis Aristida spiciformis 19
- Arnoglossum diversifolium Arnoglossum diversifolium —
- Arnoglossum sulcatum Arnoglossum sulcatum —
- Arrow Leaf Clover Trifolium vesiculosum —
- Arrow Leaf Violet; Arrow Head Violet Viola sagittata var. sagittata 77
- Arrowfeather Three-awn Aristida purpurascens 19
- Arrowhead Rattlebox Crotalaria sagittalis 57
- Arrowleaf Sida Sida rhombifolia 66
- Arrowleaf Tearthumb Polygonum sagittatum 75
- Arrowleaf Violet Viola sagittata 77
- Artemisia ludoviciana subsp. ludoviciana Artemisia ludoviciana subsp. ludoviciana —
- Artillery Plant Pilea microphylla —
- Asclepias cinerea Asclepias cinerea —
- Asclepias connivens Asclepias connivens —
- Asclepias incarnata subsp. incarnata Asclepias incarnata subsp. incarnata —
- Asclepias incarnata subsp. pulchra Asclepias incarnata subsp. pulchra —
- Asclepias obovata Asclepias obovata —
- Asclepias tuberosa subsp. rolfsii Asclepias tuberosa subsp. rolfsii —
- Asclepias tuberosa subsp. tuberosa Asclepias tuberosa subsp. tuberosa —
- Asclepias viridula Asclepias viridula —
- Ashleaf Golden-banner Thermopsis fraxinifolia 36
- Ashy Hydrangea Hydrangea cinerea 55
- Ashy Sunflower Helianthus mollis 96
- Asian Crabgrass Digitaria bicornis —
- Asian Rice Oryza sativa —
- Asiatic Dayflower Commelina communis —
- Asimina angustifolia Asimina angustifolia —
- Asimina incana Asimina incana —
- Asimina pygmea Asimina pygmea —
- Asimina reticulata Asimina reticulata —
- Asparagus setaceus Asparagus setaceus —
- Asplenium heterochroum Asplenium heterochroum —
- Asplenium platyneuron var. platyneuron Asplenium platyneuron var. platyneuron —
- Asplenium trichomanes subsp. trichomanes Asplenium trichomanes subsp. trichomanes —
- Astranthium integrifolium subsp. integrifolium Astranthium integrifolium subsp. integrifolium —
- Astrolepis sinuata Astrolepis sinuata —
- Astrolepis sinuata subsp. sinuata Astrolepis sinuata subsp. sinuata —
- Atamasco Lily Zephyranthes atamasca —
- Athyrium filix-femina Athyrium filix-femina —
- Athyrium filix-femina subsp. asplenioides Athyrium filix-femina subsp. asplenioides —
- Atlantic Goldenrod Solidago arguta var. caroliniana —
- Atlantic Poison-oak Toxicodendron pubescens 81
- Atlantic White Cedar Chamaecyparis thyoides 46
- Atriplex cristata Atriplex cristata —
- Aureolaria flava var. flava Aureolaria flava var. flava —
- Aureolaria pedicularia var. austromontana Aureolaria pedicularia var. austromontana —
- Autumn Bluegrass Poa autumnalis 59
- Autumn Coralroot Corallorhiza odontorhiza 8
- Autumn Goldenrod Solidago sphacelata 90
- Autumn Olive Elaeagnus umbellata -85
- Autumn Zephyr-lily Zephyranthes candida —
- Awl-fruit Sedge Carex stipata 58
- Awned Meadow-beauty Rhexia aristosa 43
- Awned Mountain-mint Pycnanthemum setosum —
- Axilflower Mecardonia acuminata 15
- Axilflower Mecardonia acuminata var. acuminata 15
- Axillary Goldenrod; Buckleys Goldenrod; Axillary Golden Rod; Buckleys Golden Rod Solidago buckleyi 90
- Azure Aster Symphyotrichum oolentangiense —
- Azure Aster Symphyotrichum oolentangiense var. oolentangiense —
- Azure Bluet Houstonia caerulea 35
- Azure Sage Salvia azurea —
B
- Bagpod Sesbania vesicaria 59
- Bahia Grass Paspalum notatum var. saurae —
- Bahia-grass Paspalum notatum -30
- Bald Bedstraw Galium orizabense 55
- Bald Brome Bromus racemosus —
- Bald Cypress Taxodium distichum 51
- Bald Spikerush Eleocharis erythropoda 34
- Balduina angustifolia Balduina angustifolia —
- Baldwin's Beaksedge Rhynchospora baldwinii 44
- Baldwin's Nailwort Paronychia baldwinii 8
- Baldwin's Nutrush Scleria baldwinii 12
- Baldwin's Spikerush Eleocharis baldwinii 34
- Baldwin's Yellow-eyed-grass Xyris baldwiniana 29
- Baldwins Flat Sedge Cyperus croceus 42
- Ball Clover Trifolium nigrescens —
- Ball-moss Tillandsia recurvata —
- Balsam Ragwort Packera paupercula 83
- Banana Water-lily Nymphaea mexicana —
- Baptisia alba var. alba Baptisia alba var. alba —
- Baptisia arachnifera Baptisia arachnifera —
- Baptisia australis var. australis Baptisia australis var. australis —
- Baptisia bracteata var. bracteata Baptisia bracteata var. bracteata —
- Baptisia lanceolata Baptisia lanceolata —
- Baptisia lanceolata var. lanceolata Baptisia lanceolata var. lanceolata —
- Baptisia lanceolata var. tomentosa Baptisia lanceolata var. tomentosa —
- Baptisia lecontei Baptisia lecontei —
- Baptisia megacarpa Baptisia megacarpa —
- Baptisia perfoliata Baptisia perfoliata —
- Barberry Hawthorn Crataegus berberifolia 83
- Barksdale Trillium Trillium sulcatum 24
- Barratt's Sedge Carex barrattii 58
- Barren St. Johnswort Hypericum sphaerocarpum —
- Barrens Milkweed Asclepias hirtella —
- Barrens Silky Aster Symphyotrichum pratense 93
- Bartonia paniculata subsp. paniculata Bartonia paniculata subsp. paniculata —
- Bastard Toadflax Comandra umbellata —
- Batis maritima Batis maritima —
- Bay Starvine Schisandra glabra 8
- Beach False Foxglove Agalinis fasciculata 54
- Beach Morning-glory Ipomoea imperati 83
- Beach Sunflower Helianthus debilis —
- Beadle's Mountain-mint Pycnanthemum beadlei 40
- Beaked Cornsalad Valerianella radiata 23
- Beaked Dodder Cuscuta rostrata 43
- Beaked Hawkweed Hieracium gronovii 35
- Beaked Hazel Nut; Beaked Hazelnut Corylus cornuta var. cornuta —
- Beaked Hazelnut Corylus cornuta 59
- Beaked Panicgrass Panicum anceps 49
- Beaked Spikerush Eleocharis rostellata —
- Bear Huckleberry Gaylussacia ursina 81
- Bearded Beggarticks Bidens aristosa 91
- Bearded Flatsedge Cyperus squarrosus 42
- Bearded Grass-pink Calopogon barbatus 12
- Bearded Milkvetch; Southern Milkvetch Astragalus villosus —
- Bearded Shorthusk Brachyelytrum erectum 15
- Bearded Skeleton-grass Gymnopogon ambiguus 15
- Beautiful Hawthorn; Beautiful Haw Thorn Crataegus pulcherrima —
- Bedstraw St. John's-wort Hypericum galioides 68
- Beechdrops Epifagus virginiana 12
- Beefsteak-plant Perilla frutescens -55
- Begonia cucullata Begonia cucullata —
- Bejaria racemosa Bejaria racemosa —
- Benghal Dayflower Commelina benghalensis -15
- Bent Sedge Carex styloflexa 58
- Berlandiera pumila Berlandiera pumila —
- Berlandiera pumila var. pumila Berlandiera pumila var. pumila —
- Bermuda Grass Cynodon dactylon -30
- Betula alleghaniensis var. alleghaniensis Betula alleghaniensis var. alleghaniensis —
- Betula pubescens subsp. pubescens Betula pubescens subsp. pubescens —
- Bicolor Lespedeza Lespedeza bicolor -85
- Biennial Beeblossom Gaura biennis —
- Big Blue Lilyturf Liriope muscari -30
- Big Bluestem Andropogon gerardii —
- Big Carpetgrass Axonopus furcatus 36
- Big Cordgrass Spartina cynosuroides 44
- Big Floating-heart Nymphoides aquatica 21
- Big Seed Alfalfa Dodder Cuscuta indecora 43
- Big Three-awn Aristida condensata 19
- Bigelowia nudata subsp. nudata Bigelowia nudata subsp. nudata —
- Bighead Rush Juncus megacephalus 41
- Bigleaf Aster Eurybia macrophylla 65
- Bigleaf Magnolia Magnolia macrophylla 72
- Bigleaf Marsh-elder Iva frutescens 36
- Bigleaf Periwinkle Vinca major -55
- Bigleaf Snowbell Styrax grandifolius 40
- Bigpodded Sesbania Sesbania herbacea 59
- Bigtop Lovegrass Eragrostis hirsuta 32
- Biltmore Sedge Carex biltmoreana —
- Biltmore's Carrion-flower Smilax biltmoreana 68
- Bird's-eye Speedwell Veronica persica —
- Bird's-foot Violet Viola pedata 79
- Bishop's Goutweed Aegopodium podagraria —
- Bitter Dock Rumex obtusifolius —
- Bitter Panicgrass Panicum amarum 49
- Bitternut Hickory Carya cordiformis 74
- Bittersweet Nightshade Solanum dulcamara —
- Black Bindweed Polygonum convolvulus —
- Black Cherry Prunus serotina 100
- Black Cherry Prunus serotina var. serotina 100
- Black Cohosh Actaea racemosa 30
- Black Hickory Carya texana —
- Black Highbush Blueberry Vaccinium fuscatum 98
- Black Huckleberry Gaylussacia baccata 81
- Black Locust Robinia pseudoacacia 70
- Black Locust; Bristly Locust Robinia hispida var. rosea 70
- Black Maple Acer nigrum 85
- Black Medick Medicago lupulina —
- Black Needlerush Juncus roemerianus 41
- Black Oak Quercus velutina 88
- Black Raspberry Rubus occidentalis 97
- Black Walnut Juglans nigra 53
- Black Willow Salix nigra 100
- Black-edge Sedge Carex nigromarginata 58
- Black-eyed Pea Vigna unguiculata —
- Black-eyed Susan Rudbeckia hirta 80
- Blackberry-lily Belamcanda chinensis —
- Blackeyed Susan Rudbeckia hirta var. pulcherrima 75
- Blackfruit Spikerush Eleocharis melanocarpa 34
- Blackgum Nyssa sylvatica 75
- Blackjack Oak Quercus marilandica 88
- Blackjack Oak Quercus marilandica var. marilandica —
- Blackseed Plantain Plantago rugelii 69
- Blackseed Ricegrass; Black Seed Ricegrass; Blackseeded Ricegrass; Black Seeded Ricegrass; Blackseed Rice Grass; Black Seed Rice Grass; Blackseeded Rice Grass; Black Seeded Rice Grass; Mountain Ricegrass; Mountain Rice Grass Paspalum virgatum —
- Blackstem Spleenwort Asplenium resiliens 15
- Bladder Campion Silene vulgaris —
- Bladder Sedge Carex intumescens 58
- Blechnum occidentale Blechnum occidentale —
- Blephilia hirsuta var. hirsuta Blephilia hirsuta var. hirsuta —
- Blessed Milk-thistle Silybum marianum —
- Blessed Thistle Cnicus benedictus —
- Blood Witchgrass Dichanthelium consanguineum 49
- Bloodroot Sanguinaria canadensis 34
- Blue Ash Fraxinus quadrangulata —
- Blue Butterwort Pinguicula caerulea 8
- Blue Field-madder Sherardia arvensis —
- Blue Ground-cedar Lycopodium tristachyum 11
- Blue Mistflower Conoclinium coelestinum 86
- Blue Ridge Bitter Cress Cardamine flagellifera var. flagellifera —
- Blue Ridge Bittercress Cardamine flagellifera 51
- Blue Ridge Carrion-flower Smilax lasioneura 68
- Blue Ridge Catchfly Silene ovata 42
- Blue Ridge Golden-banner Thermopsis villosa 36
- Blue Ridge Ragwort Packera millefolium 83
- Blue Ridge Sedge Carex lucorum 58
- Blue Ridge Sedge Carex lucorum var. austrolucorum —
- Blue Ridge Skullcap Scutellaria arguta —
- Blue Sage; Prairie Azure Sage Salvia azurea var. grandiflora —
- Blue Sandhill Lupine Lupinus diffusus 77
- Blue Vervain Verbena hastata 80
- Blue Water-hyssop Bacopa caroliniana 36
- Blue Waxweed Cuphea viscosissima 25
- Blue Wood Sedge Carex flaccosperma 58
- Bluebead-lily Clintonia borealis 8
- Blueflower Eryngo Eryngium integrifolium 48
- Bluejack Oak Quercus incana 88
- Bluejoint Reedgrass Calamagrostis canadensis 25
- Bluejoint; Canada Reed Grass Calamagrostis canadensis var. canadensis 25
- Bluestem Goldenrod Solidago caesia 90
- Bluestem Prickly-poppy Argemone albiflora 26
- Bluff Oak Quercus austrina 88
- Blunt Broom Sedge Carex tribuloides 58
- Blunt Spike Rush Eleocharis obtusa 34
- Blunt-lobe Cliff Fern Woodsia obtusa 8
- Bluntleaf Bedstraw Galium obtusum 55
- Bluntleaf False Foxglove Agalinis obtusifolia 54
- Bluntleaf Waterleaf Hydrophyllum canadense 24
- Bog Chickweed Stellaria alsine 64
- Bog Goldenrod Solidago uliginosa 90
- Bog Oatgrass Danthonia epilis 33
- Bog Rush Juncus biflorus 41
- Bog Smartweed Polygonum setaceum 75
- Bog Spicebush Lindera subcoriacea 65
- Bog Yellow-eyed-grass Xyris difformis 29
- Bog Yellowcress Rorippa palustris 32
- Boltonia asteroides var. asteroides Boltonia asteroides var. asteroides —
- Boltonia diffusa var. diffusa Boltonia diffusa var. diffusa —
- Bosc's Bluet Oldenlandia boscii 13
- Bosc's Witchgrass Dichanthelium boscii 49
- Bothriochloa hybrida Bothriochloa hybrida —
- Bothriochloa laguroides Bothriochloa laguroides —
- Bothriochloa laguroides subsp. torreyana Bothriochloa laguroides subsp. torreyana —
- Bottle Gourd Lagenaria siceraria —
- Bottlebrush Sedge Carex hystericina —
- Bottomland Aster Symphyotrichum ontarionis 93
- Bouteloua hirsuta Bouteloua hirsuta —
- Bouteloua hirsuta var. hirsuta Bouteloua hirsuta var. hirsuta —
- Bowman's-root Gillenia trifoliata 17
- Box-elder Acer negundo 85
- Boykin's Lobelia Lobelia boykinii 48
- Boyntons Locust; Bristly Locust; Rose Acacia; Rose Locust Robinia hispida var. hispida 70
- Bracted Vervain Verbena bracteata 77
- Bradford Pear Pyrus calleryana -85
- Bradley's Spleenwort Asplenium bradleyi 15
- Branched Foldwing Dicliptera brachiata 15
- Branched Hedge-hyssop Gratiola ramosa 8
- Brassica rapa Brassica rapa —
- Brassica rapa var. rapa Brassica rapa var. rapa —
- Brazilian Cat's-ear Hypochaeris brasiliensis —
- Brazilian Vervain Verbena brasiliensis —
- Brazilian Watermeal Wolffia brasiliensis 11
- Brazilian Waterweed Egeria densa -55
- Bread Wheat Triticum aestivum —
- Brickellia cordifolia Brickellia cordifolia —
- Bridal-wreath Spiraea Spiraea prunifolia —
- Bristle Seed Star Grass Hypoxis wrightii 17
- Bristle-leaf Sedge Carex eburnea 58
- Bristly Buttercup Ranunculus hispidus 51
- Bristly Dog's-tail Cynosurus echinatus —
- Bristly Flatsedge Cyperus hystricinus —
- Bristly Locust Robinia hispida 70
- Bristly Scaleseed Spermolepis echinata 15
- Bristly Sedge Carex comosa 58
- Bristly-stalk Sedge Carex leptalea 58
- Brittle Waternymph Najas minor -30
- Britton's Spikerush Eleocharis brittonii 34
- Briza maxima Briza maxima —
- Broad Beech Fern Phegopteris hexagonoptera 35
- Broad Looseflower Sedge Carex laxiflora 58
- Broadfruit Horned Beaksedge Rhynchospora careyana 44
- Broadleaf Arrowhead Sagittaria latifolia 62
- Broadleaf Barbara's-buttons Marshallia trinervia 13
- Broadleaf Cattail Typha latifolia 52
- Broadleaf Enchanter's-nightshade Circaea lutetiana subsp. canadensis 9
- Broadleaf Enchanters Nightshade Circaea lutetiana 8
- Broadleaf Ironweed Vernonia glauca 75
- Broadleaf Meadowsweet Spiraea alba var. latifolia —
- Broadleaf Sedge Carex platyphylla 59
- Broadleaf Signal-grass Urochloa platyphylla —
- Broadleaf Tickseed Coreopsis latifolia 65
- Broadleaf Witchgrass Dichanthelium latifolium 49
- Broadtooth Hedge-nettle Stachys latidens 56
- Broadwing Sedge Carex alata 58
- Brome Fescue Vulpia bromoides —
- Brome-like Sedge Carex bromoides 58
- Bromus diandrus subsp. rigidus Bromus diandrus subsp. rigidus —
- Bromus inermis subsp. inermis Bromus inermis subsp. inermis —
- Bromus inermis var. inermis Bromus inermis var. inermis —
- Bromus secalinus var. secalinus Bromus secalinus var. secalinus —
- Broomsedge Andropogon virginicus 54
- Broomsedge Andropogon virginicus var. virginicus 54
- Brown-eyed Susan Rudbeckia triloba 80
- Brownfruit Rush Juncus abortivus —
- Brownish Beaksedge Rhynchospora capitellata 44
- Brownish Sedge Carex brunnescens 58
- Browntop Millet Urochloa ramosa —
- Browntop Signalgrass; Brown Top Signalgrass; Brown Top Signal Grass; Browntop Signal Grass; Browntopped Signalgrass; Brown Topped Signalgrass; Brown Topped Signal Grass; Browntopped Signal Grass Urochloa fusca —
- Brugmansia versicolor Brugmansia versicolor —
- Buchnera longifolia Buchnera longifolia —
- Buckroot Pediomelum canescens 27
- Buckthorn Bumelia Sideroxylon lycioides 73
- Buckwheat Fagopyrum esculentum —
- Buckwheat Vine Brunnichia ovata —
- Buddleja officinalis Buddleja officinalis —
- Buffalo Clover Trifolium reflexum 95
- Buffalo Grass Bouteloua dactyloides —
- Buffalo-bur Nightshade Solanum rostratum —
- Buffalo-nut Pyrularia pubera 10
- Bulblet Bladder Fern Cystopteris bulbifera 8
- Bulbostylis capillaris subsp. capillaris Bulbostylis capillaris subsp. capillaris —
- Bulbostylis ciliatifolia var. ciliatifolia Bulbostylis ciliatifolia var. ciliatifolia —
- Bulbous Adder's-tongue Ophioglossum crotalophoroides 8
- Bulbous Bittercress Cardamine bulbosa 53
- Bulbous Bluegrass Poa bulbosa —
- Bulbous Buttercup Ranunculus bulbosus —
- Bulbous Woodrush Luzula bulbosa 12
- Bull Crowngrass Paspalum boscianum 66
- Bull Thistle Cirsium vulgare -30
- Bull-tongue Arrowhead Sagittaria lancifolia 58
- Bunched Beaksedge Rhynchospora cephalantha 44
- Bur Chervil Anthriscus caucalis —
- Bur-reed Sedge Carex sparganioides 58
- Burning Nettle Urtica urens —
- Bush's Sedge Carex bushii 58
- Bushs Muhly Muhlenbergia bushii 27
- Bushy Aster Symphyotrichum dumosum 93
- Bushy Bluestem Andropogon glomeratus 54
- Bushy Goldentop Euthamia leptocephala —
- Bushy Seedbox Ludwigia alternifolia 58
- Bushy St. John's-wort Hypericum densiflorum 71
- Butter-and-eggs Linaria vulgaris —
- Butterfly Milkweed Asclepias tuberosa 70
- Butternut Juglans cinerea 53
- Butterweed Packera glabella 83
- Button Medick Medicago orbicularis —
- Button Sedge Carex bullata 58
- Buttonbush Cephalanthus occidentalis 79
- Buttonbush Dodder Cuscuta cephalanthi 43
- Buxbaum's Sedge Carex buxbaumii 58
C
- Cabbage Brassica oleracea —
- Cabbage Palmetto Sabal palmetto 68
- Cabomba caroliniana var. caroliniana Cabomba caroliniana var. caroliniana —
- Cabomba caroliniana var. pulcherrima Cabomba caroliniana var. pulcherrima —
- Caesalpinia gilliesii Caesalpinia gilliesii —
- Cakile edentula subsp. harperi Cakile edentula subsp. harperi —
- Calamagrostis canadensis var. langsdorffii Calamagrostis canadensis var. langsdorffii —
- Calamagrostis coarctata Calamagrostis coarctata —
- Calamagrostis porteri subsp. insperata Calamagrostis porteri subsp. insperata —
- Calamintha nepeta subsp. glandulosa Calamintha nepeta subsp. glandulosa —
- Calamintha nepeta subsp. nepeta Calamintha nepeta subsp. nepeta —
- Calcium-fleeing Sedge Carex calcifugens 58
- Caley Pea Lathyrus hirsutus —
- Calico Aster Symphyotrichum lateriflorum 93
- Calico Aster; One Sided Aster; White Woodland Aster; Starved Aster Symphyotrichum lateriflorum var. horizontale 93
- California Bulrush Schoenoplectus californicus 45
- California Poppy Eschscholzia californica —
- Calliopsis; Plains Coreopsis; Golden Tickseed; Ojos De Gato; Golden Tick Seed Coreopsis tinctoria var. tinctoria 65
- Callirhoe papaver Callirhoe papaver —
- Callisia cordifolia Callisia cordifolia —
- Callisia graminea Callisia graminea —
- Callisia rosea Callisia rosea —
- Callitriche heterophylla subsp. heterophylla Callitriche heterophylla subsp. heterophylla —
- Callitriche pedunculosa Callitriche pedunculosa —
- Callitriche peploides Callitriche peploides —
- Calycanthus brockianus Calycanthus brockianus —
- Calydorea coelestina Calydorea coelestina —
- Calystegia macounii Calystegia macounii —
- Calystegia sepium subsp. americana Calystegia sepium subsp. americana —
- Calystegia sepium subsp. angulata Calystegia sepium subsp. angulata —
- Calystegia sepium subsp. limnophila Calystegia sepium subsp. limnophila —
- Calystegia sepium subsp. sepium Calystegia sepium subsp. sepium —
- Calystegia silvatica subsp. fraterniflora Calystegia silvatica subsp. fraterniflora —
- Calystegia spithamaea subsp. purshiana Calystegia spithamaea subsp. purshiana —
- Camellia japonica Camellia japonica —
- Camellia sasanqua Camellia sasanqua —
- Camellia sinensis Camellia sinensis —
- Camphor Pluchea Pluchea camphorata 68
- Camphor-tree Cinnamomum camphora -15
- Camphorweed Heterotheca subaxillaris 74
- Canada Bluegrass Poa compressa —
- Canada Frostweed Helianthemum canadense —
- Canada Germander Teucrium canadense var. canadense 40
- Canada Horsebalm Collinsonia canadensis 29
- Canada Lettuce Lactuca canadensis 89
- Canada Lily Lilium canadense 46
- Canada Mayflower Maianthemum canadense 46
- Canada Moonseed Menispermum canadense 19
- Canada Rockcress Arabis canadensis —
- Canada Toadflax Nuttallanthus canadensis 36
- Canada Violet Viola canadensis 77
- Canada Wild-ginger Asarum canadense 20
- Canada Wood-nettle Laportea canadensis 26
- Canadian Black Snake Root Sanicula canadensis var. canadensis 15
- Canadian Black-snakeroot Sanicula canadensis 15
- Canadian Bluet Houstonia canadensis 35
- Canadian Burnet Sanguisorba canadensis 20
- Canadian Clearweed Pilea pumila 23
- Canadian Honewort Cryptotaenia canadensis 18
- Canadian Lousewort Pedicularis canadensis 43
- Canadian Milkvetch Astragalus canadensis 74
- Canadian Milkvetch Astragalus canadensis var. canadensis 72
- Canadian Rush Juncus canadensis 41
- Canadian Serviceberry Amelanchier canadensis 78
- Canadian St. John's-wort Hypericum canadense 68
- Canary Island Tamarisk Tamarix canariensis —
- Canavalia ensiformis Canavalia ensiformis —
- Canby's Bulrush Schoenoplectus etuberculatus —
- Canby's Cowbane Oxypolis canbyi 27
- Canby's Lobelia Lobelia canbyi 48
- Canna flaccida Canna flaccida —
- Canna indica Canna indica —
- Cannabis sativa subsp. sativa Cannabis sativa subsp. sativa —
- Canteloupe Cucumis melo —
- Caper Spurge Euphorbia lathyris —
- Capillary Hairsedge Bulbostylis ciliatifolia 8
- Capitate Spike Rush; Capitate Spikerush Eleocharis geniculata —
- Capsicum annuum var. annuum Capsicum annuum var. annuum —
- Cardinal-flower Lobelia cardinalis 48
- Carex acidicola Carex acidicola —
- Carex atlantica subsp. atlantica Carex atlantica subsp. atlantica —
- Carex atlantica subsp. capillacea Carex atlantica subsp. capillacea —
- Carex baltzellii Carex baltzellii —
- Carex bromoides subsp. bromoides Carex bromoides subsp. bromoides —
- Carex brunnescens subsp. sphaerostachya Carex brunnescens subsp. sphaerostachya —
- Carex communis var. amplisquama Carex communis var. amplisquama —
- Carex communis var. communis Carex communis var. communis —
- Carex dasycarpa Carex dasycarpa —
- Carex debilis var. debilis Carex debilis var. debilis —
- Carex gravida var. lunelliana Carex gravida var. lunelliana —
- Carex leptalea subsp. harperi Carex leptalea subsp. harperi —
- Carex scoparia var. scoparia Carex scoparia var. scoparia —
- Carex striata var. striata Carex striata var. striata —
- Carex thornei Carex thornei —
- Carex tonsa var. tonsa Carex tonsa var. tonsa —
- Carex tribuloides var. sangamonensis Carex tribuloides var. sangamonensis —
- Carex tribuloides var. tribuloides Carex tribuloides var. tribuloides —
- Carex venusta var. minor Carex venusta var. minor —
- Carex venusta var. venusta Carex venusta var. venusta —
- Carex vulpinoidea var. vulpinoidea Carex vulpinoidea var. vulpinoidea —
- Carey's Saxifrage Saxifraga careyana —
- Carey's Sedge Carex careyana 58
- Carolina Anemone Anemone caroliniana 28
- Carolina Arrow Wood Viburnum carolinianum 85
- Carolina Ash Fraxinus caroliniana 75
- Carolina Birds-in-a-nest Macbridea caroliniana 8
- Carolina Bristle-mallow Modiola caroliniana —
- Carolina Buckthorn Frangula caroliniana 72
- Carolina Canary-grass Phalaris caroliniana —
- Carolina Clover Trifolium carolinianum 95
- Carolina Coralbead Cocculus carolinus —
- Carolina Crane's-bill Geranium carolinianum 80
- Carolina Cranes Bill Geranium carolinianum var. carolinianum —
- Carolina Crownbeard Verbesina walteri —
- Carolina Dayflower Commelina caroliniana —
- Carolina Doll's-daisy Boltonia caroliniana —
- Carolina Draba Draba reptans —
- Carolina Dropseed Sporobolus pinetorum 36
- Carolina Elephant's-foot Elephantopus carolinianus 45
- Carolina False-dandelion Pyrrhopappus carolinianus 48
- Carolina Fanwort Cabomba caroliniana 15
- Carolina Fluffgrass Tridens carolinianus —
- Carolina Foxtail Alopecurus carolinianus 20
- Carolina Frostweed Helianthemum carolinianum 32
- Carolina Grasswort Lilaeopsis carolinensis —
- Carolina Hemlock Tsuga caroliniana 70
- Carolina Holly Ilex ambigua 97
- Carolina Horsenettle Solanum carolinense 73
- Carolina Horsenettle Solanum carolinense var. carolinense —
- Carolina Indigo Indigofera caroliniana 43
- Carolina Jessamine Gelsemium sempervirens 17
- Carolina Laurel Kalmia carolina 77
- Carolina Laurel Cherry Prunus caroliniana —
- Carolina Leaf-flower Phyllanthus caroliniensis 26
- Carolina Lily Lilium michauxii 46
- Carolina Mosquito-fern Azolla caroliniana 19
- Carolina Nut Rush Scleria pauciflora var. caroliniana 12
- Carolina Phlox Phlox carolina 52
- Carolina Pineland-cress Warea cuneifolia 12
- Carolina Pony's-foot Dichondra carolinensis 15
- Carolina Prairie-trefoil Lotus unifoliolatus var. helleri —
- Carolina Red Maple Acer rubrum var. trilobum 85
- Carolina Rose Rosa carolina 76
- Carolina Rose; Pasture Rose Rosa carolina var. carolina —
- Carolina Sea-lavender Limonium carolinianum 25
- Carolina Sedge Carex caroliniana 58
- Carolina Silkgrass Pityopsis aspera var. adenolepis 74
- Carolina Spider-lily Hymenocallis crassifolia —
- Carolina Spring-beauty Claytonia caroliniana 32
- Carolina Tassel-rue Trautvetteria caroliniensis 8
- Carolina Thistle Cirsium carolinianum 89
- Carolina Vetch Vicia caroliniana 77
- Carolina Violet Viola villosa 77
- Carolina Wild-petunia Ruellia caroliniensis 43
- Carolina Yellow-eyed-grass Xyris caroliniana 29
- Carpet-bugle Ajuga reptans -30
- Carphephorus corymbosus Carphephorus corymbosus —
- Carphephorus odoratissimus Carphephorus odoratissimus —
- Carphephorus paniculatus Carphephorus paniculatus —
- Carphephorus pseudoliatris Carphephorus pseudoliatris —
- Carpinus caroliniana subsp. caroliniana Carpinus caroliniana subsp. caroliniana —
- Carpinus caroliniana subsp. virginiana Carpinus caroliniana subsp. virginiana —
- Castanea pumila var. pumila Castanea pumila var. pumila —
- Castor-bean Ricinus communis —
- Cat Greenbrier Smilax glauca 71
- Catawba Rhododendron Rhododendron catawbiense 97
- Catchfly Cutgrass Leersia lenticularis 32
- Catesby's Bindweed Calystegia catesbeiana —
- Catesbys Trillium Trillium catesbaei —
- Catnip Nepeta cataria —
- Cattail Sedge Carex typhina 58
- Cayenne Pepper Capsicum annuum —
- Ceanothus microphyllus Ceanothus microphyllus —
- Ceanothus serpyllifolius Ceanothus serpyllifolius —
- Cedar Glade Spike Rush Eleocharis bifida —
- Cedrus deodara Cedrus deodara —
- Celandine-poppy Stylophorum diphyllum 13
- Celliotts Fanpetals Sida elliottii var. elliottii 66
- Celtis laevigata var. laevigata Celtis laevigata var. laevigata —
- Cenchrus gracillimus Cenchrus gracillimus —
- Cenchrus myosuroides Cenchrus myosuroides —
- Centaurea melitensis Centaurea melitensis —
- Centaurea stoebe subsp. micranthos Centaurea stoebe subsp. micranthos —
- Centipede Grass Eremochloa ophiuroides —
- Cerastium arvense subsp. strictum Cerastium arvense subsp. strictum —
- Cerastium fontanum subsp. vulgare Cerastium fontanum subsp. vulgare —
- Cerastium nutans var. nutans Cerastium nutans var. nutans —
- Ceratiola ericoides Ceratiola ericoides —
- Ceratophyllum muricatum Ceratophyllum muricatum —
- Ceratophyllum muricatum subsp. australe Ceratophyllum muricatum subsp. australe —
- Ceratopteris pteridoides Ceratopteris pteridoides —
- Cercis canadensis var. canadensis Cercis canadensis var. canadensis 69
- Cestrum nocturnum Cestrum nocturnum —
- Chaerophyllum tainturieri var. tainturieri Chaerophyllum tainturieri var. tainturieri —
- Chalk Maple Acer leucoderme 85
- Chamaecrista deeringiana Chamaecrista deeringiana —
- Chamaecrista nictitans subsp. nictitans Chamaecrista nictitans subsp. nictitans —
- Chamaesyce bombensis Chamaesyce bombensis —
- Chamaesyce cordifolia Chamaesyce cordifolia —
- Chamaesyce hirta Chamaesyce hirta —
- Chamaesyce hypericifolia Chamaesyce hypericifolia —
- Chamaesyce hyssopifolia Chamaesyce hyssopifolia —
- Chamaesyce ophthalmica Chamaesyce ophthalmica —
- Chamaesyce polygonifolia Chamaesyce polygonifolia —
- Chamaesyce serpyllifolia Chamaesyce serpyllifolia —
- Chamaesyce serpyllifolia subsp. serpyllifolia Chamaesyce serpyllifolia subsp. serpyllifolia —
- Chamber-bitter Phyllanthus urinaria —
- Changing Forget-me-not Myosotis discolor —
- Chapman's Beaksedge Rhynchospora chapmanii 44
- Chapman's Bluegrass Poa chapmaniana 59
- Chapman's Redtop Tridens flavus var. chapmanii —
- Chapman's Sedge Carex chapmanii —
- Chapman's Yellow-eyed-grass Xyris chapmanii 29
- Chaste-tree Vitex agnus-castus —
- Chattahoochee False Foxglove Agalinis plukenetii —
- Cheat-grass Bromus tectorum -30
- Chelidonium majus var. majus Chelidonium majus var. majus —
- Chenopodium berlandieri var. boscianum Chenopodium berlandieri var. boscianum 51
- Cherokee Rose Rosa laevigata -15
- Cherokee Sedge Carex cherokeensis 58
- Cherry Plum; Flowering Plum; Purpleleaf Plum Prunus cerasifera —
- Cherrybark Oak Quercus pagoda 88
- Chestnut Oak Quercus montana 88
- Chickasaw Plum Prunus angustifolia 100
- Chicken-spike Sphenoclea zeylanica —
- Chicory Cichorium intybus —
- Childing Pink Petrorhagia prolifera —
- Chilopsis linearis Chilopsis linearis —
- Chilopsis linearis subsp. arcuata Chilopsis linearis subsp. arcuata —
- Chimaphila umbellata subsp. cisatlantica Chimaphila umbellata subsp. cisatlantica —
- Chinaberry Melia azedarach -30
- Chinese Boxthorn Lycium chinense —
- Chinese Chestnut Castanea mollissima —
- Chinese Elm Ulmus parvifolia —
- Chinese Mustard Brassica juncea —
- Chinese Parasol-tree Firmiana simplex -30
- Chinese Privet Ligustrum sinense -85
- Chinese Silver-grass Miscanthus sinensis -85
- Chinese Tallow-tree Triadica sebifera -55
- Chinese Thorn-apple Datura quercifolia —
- Chinese Wisteria Wisteria sinensis -85
- Chinquapin Oak Quercus muehlenbergii 88
- Chloris canterai Chloris canterai —
- Chloris canterai var. canterai Chloris canterai var. canterai —
- Chlorophytum comosum Chlorophytum comosum —
- Chocolate-weed Melochia corchorifolia —
- Choke Cherry Prunus virginiana 100
- Chokecherry Prunus virginiana var. virginiana —
- Christmas Fern Polystichum acrostichoides 31
- Chrysogonum virginianum var. australe Chrysogonum virginianum var. australe —
- Chrysogonum virginianum var. brevistolon Chrysogonum virginianum var. brevistolon —
- Chrysopsis gossypina subsp. gossypina Chrysopsis gossypina subsp. gossypina —
- Chufa Flat Sedge; Earth Almond Cyperus esculentus var. leptostachyus —
- Churchmouse Three-awn Aristida dichotoma 19
- Cicuta maculata var. bolanderi Cicuta maculata var. bolanderi —
- Cinnamon Fern Osmunda cinnamomea 28
- Cirsium horridulum var. vittatum Cirsium horridulum var. vittatum —
- Cirsium undulatum Cirsium undulatum —
- Cirsium undulatum var. undulatum Cirsium undulatum var. undulatum —
- Citrullus lanatus var. lanatus Citrullus lanatus var. lanatus —
- Cladium mariscus Cladium mariscus —
- Cladium mariscus subsp. jamaicense Cladium mariscus subsp. jamaicense —
- Clammy Goosefoot; Clammy Goose Foot Dysphania pumilio —
- Clammy Ground-cherry Physalis heterophylla 73
- Clammy Hedge-hyssop Gratiola neglecta 8
- Clammy Locust Robinia viscosa 70
- Clasping Bugleweed Lycopus amplectens 30
- Clasping Heliotrope Heliotropium amplexicaule —
- Clasping Milkweed Asclepias amplexicaulis 67
- Clasping Pepperweed Lepidium perfoliatum —
- Clasping Venus's-looking-glass Triodanis perfoliata 22
- Clasping-leaf St. John's-wort Hypericum gymnanthum 68
- Claytonia caroliniana var. caroliniana Claytonia caroliniana var. caroliniana —
- Claytonia perfoliata subsp. perfoliata Claytonia perfoliata subsp. perfoliata —
- Cleavers Galium aparine 55
- Clematis socialis Clematis socialis —
- Cleome serrata Cleome serrata —
- Cleome viscosa Cleome viscosa —
- Clerodendrum indicum Clerodendrum indicum —
- Cliffside Goldenrod Solidago simulans 90
- Cliftonia monophylla Cliftonia monophylla —
- Climbing Aster Ampelaster carolinianus —
- Climbing Dogbane Trachelospermum difforme 22
- Climbing Hempweed Mikania scandens 55
- Climbing Hydrangea Decumaria barbara —
- Climbing Milkvine Matelea obliqua 19
- Climbing Rose Rosa setigera 76
- Clinopodium ashei Clinopodium ashei —
- Clinopodium brownei Clinopodium brownei —
- Clinopodium coccineum Clinopodium coccineum —
- Clinopodium dentatum Clinopodium dentatum —
- Clitoria ternatea Clitoria ternatea —
- Clustered Beaksedge Rhynchospora glomerata 44
- Clustered Black-snakeroot Sanicula odorata 15
- Clustered Bushmint Hyptis alata 32
- Clustered Dock Rumex conglomeratus —
- Clustered Fescue Festuca paradoxa 36
- Clustered Mille Graines Oldenlandia uniflora 13
- Clustered Mountain-mint Pycnanthemum muticum 40
- Clustered Pellitory Parietaria praetermissa —
- Clustered Poppy-mallow Callirhoe triangulata 45
- Clusterspike Indigo-bush Amorpha herbacea 77
- Cnidoscolus urens Cnidoscolus urens —
- Coast Cockspur-grass Echinochloa walteri 37
- Coast Tarweed Madia sativa —
- Coastal Beaksedge Rhynchospora pleiantha —
- Coastal Bedstraw Galium hispidulum —
- Coastal Bristlegrass Setaria corrugata 43
- Coastal Carrion-flower Smilax pseudochina 68
- Coastal Doghobble Leucothoe axillaris 25
- Coastal False-asphodel Triantha racemosa 8
- Coastal Jointweed Polygonella articulata 8
- Coastal Lovegrass Eragrostis refracta 32
- Coastal Plain Beaksedge Rhynchospora stenophylla 44
- Coastal Plain Blue-eyed-grass Sisyrinchium fuscatum 16
- Coastal Plain Dawnflower Stylisma patens 22
- Coastal Plain Lettuce; Grassleaf Lettuce Lactuca graminifolia var. graminifolia 89
- Coastal Plain Nailwort Paronychia herniarioides 8
- Coastal Plain Puccoon Lithospermum caroliniense —
- Coastal Plain Sedge Carex crebriflora 58
- Coastal Plain Willow Salix caroliniana 99
- Coastal Plain Witchgrass Dichanthelium longiligulatum 49
- Coastal Rose-gentian Sabatia calycina 14
- Coastal Sand Spurge Euphorbia exserta 65
- Coastal Sandspur Cenchrus spinifex 49
- Coastal Serviceberry Amelanchier obovalis 76
- Coastal Sweet-pepperbush Clethra alnifolia 52
- Coastal Virgin's-bower Clematis catesbyana 48
- Coastal Water-hyssop Bacopa monnieri 36
- Coastal-plain Tickseed Coreopsis gladiata 65
- Coastal-plain Yellow-eyed-grass Xyris ambigua 29
- Cockspur Hawthorn Crataegus crus-galli 87
- Cocos nucifera Cocos nucifera —
- Coelorachis tessellata Coelorachis tessellata —
- Coelorachis tuberculosa Coelorachis tuberculosa —
- Coffee Senna Senna occidentalis —
- Cogongrass Imperata cylindrica —
- Colicroot; Loosescale Gayfeather; Scaly Blazing Star; Colic Root; Loosescale Gay Feather; Scaly Blazingstar Liatris squarrosa var. squarrosa 52
- Collins's Sedge Carex collinsii 58
- Collinsonia serotina Collinsonia serotina —
- Colocasia esculenta var. antiquorum Colocasia esculenta var. antiquorum —
- Colocasia esculenta var. esculenta Colocasia esculenta var. esculenta —
- Colombian Watermeal Wolffia columbiana 11
- Colombian Waxweed Cuphea carthagenensis —
- Comandra umbellata subsp. umbellata Comandra umbellata subsp. umbellata —
- Combleaf Mermaid-weed Proserpinaca pectinata 8
- Combleaf Yellow False Foxglove Aureolaria pectinata 46
- Combs Paspalum; Western Wheatgrass; Western Wheat Grass Pascopyrum smithii —
- Commelina diffusa var. diffusa Commelina diffusa var. diffusa —
- Commelina erecta var. angustifolia Commelina erecta var. angustifolia 53
- Commom Daffodil Narcissus pseudonarcissus —
- Common Apple Malus pumila —
- Common Barnyard-grass Echinochloa crus-galli —
- Common Bird's-foot-trefoil Lotus corniculatus —
- Common Bladderwort Utricularia macrorhiza 22
- Common Blanketflower; Firewheel; Indian Blanket; Common Blanket Flower; Fire Wheel Gaillardia pulchella var. pulchella —
- Common Blue Cohosh Caulophyllum thalictroides 22
- Common Boneset Eupatorium perfoliatum 87
- Common Browneyed Susan; Common Three Lobed Coneflower Rudbeckia triloba var. triloba 75
- Common Canary-grass Phalaris canariensis —
- Common Carpetgrass Axonopus fissifolius 36
- Common Centaury Centaurium erythraea —
- Common Chickweed Stellaria media —
- Common Cinquefoil Potentilla simplex 68
- Common Clasping Aster Symphyotrichum patens var. gracile —
- Common Clasping Aster Symphyotrichum patens var. patens 93
- Common Climbing Buckwheat Polygonum scandens 75
- Common Comfrey Symphytum officinale —
- Common Corncockle Agrostemma githago —
- Common Cup-plant Silphium perfoliatum 54
- Common Cut Leaf Coneflower; Green Head Coneflower Rudbeckia laciniata var. laciniata 75
- Common Dandelion Taraxacum officinale —
- Common Dodder Cuscuta gronovii 43
- Common Duckweed Lemna minor 31
- Common Elderberry Sambucus nigra subsp. canadensis 75
- Common Elephant's-foot Elephantopus tomentosus 45
- Common Evening-primrose Oenothera biennis 82
- Common Fig Ficus carica —
- Common Flax Linum usitatissimum —
- Common Golden-Alexanders Zizia aurea 50
- Common Greenbrier Smilax rotundifolia 71
- Common Groundsel Senecio vulgaris —
- Common Hackberry Celtis occidentalis 65
- Common Hairy Coreopsis; Star Tickseed; Star Tick Seed Coreopsis pubescens var. pubescens 65
- Common Hairy Coreopsis; Star Tickseed; Star Tick Seed Coreopsis pubescens var. robusta 65
- Common Hairy Forked Nailwort Paronychia fastigiata var. fastigiata —
- Common Hard Grass Sclerochloa dura —
- Common Hoptree Ptelea trifoliata 40
- Common Horehound Marrubium vulgare —
- Common Hornwort Ceratophyllum demersum 13
- Common Jack-in-the-pulpit Arisaema triphyllum 18
- Common Juniper Juniperus communis 59
- Common Lantana Lantana camara -30
- Common Leopardbane Arnica acaulis 11
- Common Mallow Malva neglecta —
- Common Milkweed Asclepias syriaca 71
- Common Morning-glory Ipomoea purpurea -30
- Common Motherwort Leonurus cardiaca —
- Common Mouse-ear Chickweed Cerastium fontanum —
- Common Mullein Verbascum thapsus —
- Common Ninebark Physocarpus opulifolius 65
- Common Ninebark Physocarpus opulifolius var. opulifolius 65
- Common Nipplewort Lapsana communis —
- Common Oat Avena sativa —
- Common Oleander Nerium oleander —
- Common Partridge Pea Chamaecrista fasciculata var. fasciculata 68
- Common Partridge-pea Chamaecrista fasciculata 68
- Common Pawpaw Asimina triloba 55
- Common Pear Pyrus communis —
- Common Pearlbrush Exochorda racemosa —
- Common Periwinkle Vinca minor -55
- Common Plantain Plantago major —
- Common Purslane Portulaca oleracea —
- Common Ragweed Ambrosia artemisiifolia 68
- Common Reed Phragmites australis —
- Common Rockcap Fern Polypodium virginianum 19
- Common Rose-pink Sabatia angularis 14
- Common Rough Fleabane Erigeron strigosus var. strigosus 87
- Common Saltwort Salsola kali —
- Common Selfheal Prunella vulgaris —
- Common Serviceberry Amelanchier arborea var. arborea —
- Common Shepherd's Purse Capsella bursa-pastoris —
- Common Sneezeweed Helenium autumnale 72
- Common Sowthistle Sonchus oleraceus -30
- Common Speedwell Veronica officinalis —
- Common St. John's-wort Hypericum perforatum —
- Common Sunflower Helianthus annuus —
- Common Sweetleaf Symplocos tinctoria 45
- Common Three Square Bulrush Schoenoplectus pungens 45
- Common Three Square Bulrush Schoenoplectus pungens var. pungens —
- Common Threeseed Mercury Acalypha rhomboidea 36
- Common Timothy Phleum pratense —
- Common Velvet-grass Holcus lanatus —
- Common Viper's-bugloss Echium vulgare —
- Common Water-hyacinth Eichhornia crassipes -55
- Common Waxmyrtle Morella cerifera 72
- Common Wild Quinine Parthenium hysterophorus —
- Common Wild Quinine Parthenium integrifolium 72
- Common Winterberry Ilex verticillata 97
- Common Yellow Woodsorrel Oxalis stricta 58
- Common Yucca Yucca filamentosa 55
- Compact Dodder Cuscuta compacta 43
- Composite Dropseed Sporobolus compositus 36
- Cone-cup Spikerush Eleocharis tuberculosa 34
- Confederate Daisy Helianthus porteri —
- Confederate Huckleberry Gaylussacia nana 81
- Convallaria majuscula Convallaria majuscula —
- Conyza canadensis Conyza canadensis 5
- Conyza canadensis var. canadensis Conyza canadensis var. canadensis —
- Conyza floribunda Conyza floribunda —
- Cooley's Meadow-rue Thalictrum cooleyi 47
- Coosa Barbaras Buttons Marshallia mohrii —
- Copper Iris Iris fulva 57
- Coppery St. John's-wort Hypericum denticulatum 68
- Coral Ardisia; Coralberry; Spiceberry; Hens Eyes; Marlberry; Scratchthroat; Coral Berry; Spice Berry; Henseyes; Marl Berry; Scratch Throat Ardisia crenata -30
- Coral Greenbrier Smilax walteri 71
- Coral Honeysuckle Lonicera sempervirens 72
- Coral-bean Erythrina herbacea 36
- Coralberry Symphoricarpos orbiculatus 68
- Corallorhiza odontorhiza var. odontorhiza Corallorhiza odontorhiza var. odontorhiza —
- Corchorus aestuans Corchorus aestuans —
- Coreopsis grandiflora var. saxicola Coreopsis grandiflora var. saxicola —
- Coreopsis integrifolia Coreopsis integrifolia —
- Coreopsis nudata Coreopsis nudata —
- Coreopsis pubescens var. debilis Coreopsis pubescens var. debilis —
- Coreopsis tinctoria var. atkinsoniana Coreopsis tinctoria var. atkinsoniana —
- Corn Zea mays —
- Corn Buttercup Ranunculus arvensis —
- Corn Chamomile Anthemis arvensis —
- Corn Speedwell Veronica arvensis —
- Corn Spurry Spergula arvensis —
- Corn-gromwell Buglossoides arvensis —
- Cornel-leaf Aster Doellingeria infirma 75
- Cornflower Centaurea cyanus -30
- Corydalis micrantha subsp. australis Corydalis micrantha subsp. australis —
- Cottony Golden-aster Chrysopsis gossypina 74
- Cow-parsnip Heracleum maximum 41
- Cranefly Orchid Tipularia discolor 8
- Crassula aquatica Crassula aquatica —
- Crassula longipes Crassula longipes —
- Crataegus aemula Crataegus aemula —
- Crataegus arrogans Crataegus arrogans —
- Crataegus beadlei Crataegus beadlei —
- Crataegus brachyacantha Crataegus brachyacantha —
- Crataegus condigna Crataegus condigna —
- Crataegus contrita Crataegus contrita —
- Crataegus dispar Crataegus dispar —
- Crataegus engelmannii Crataegus engelmannii —
- Crataegus exilis Crataegus exilis —
- Crataegus extraria Crataegus extraria —
- Crataegus flava Crataegus flava —
- Crataegus fragilis Crataegus fragilis —
- Crataegus ignave Crataegus ignave —
- Crataegus impar Crataegus impar —
- Crataegus insidiosa Crataegus insidiosa —
- Crataegus integra Crataegus integra —
- Crataegus invicta Crataegus invicta —
- Crataegus lanata Crataegus lanata —
- Crataegus limata Crataegus limata —
- Crataegus limnophila Crataegus limnophila —
- Crataegus mira Crataegus mira —
- Crataegus penita Crataegus penita —
- Crataegus resima Crataegus resima —
- Crataegus rigens Crataegus rigens —
- Crataegus rufula Crataegus rufula —
- Crataegus triflora Crataegus triflora —
- Crataegus tristis Crataegus tristis —
- Crataegus valida Crataegus valida —
- Crataegus versuta Crataegus versuta —
- Crataegus vulsa Crataegus vulsa —
- Crawes Sedge Carex crawei —
- Cream Avens Geum virginianum 23
- Cream Tick-trefoil Desmodium ochroleucum 69
- Cream Wild Indigo Baptisia bracteata 76
- Creeping Aster Eurybia surculosa 65
- Creeping Bentgrass Agrostis stolonifera —
- Creeping Blueberry Vaccinium crassifolium —
- Creeping Burhead Echinodorus cordifolius 15
- Creeping Cucumber Melothria pendula 24
- Creeping Dayflower Commelina diffusa —
- Creeping Eryngo Eryngium prostratum 48
- Creeping Jacob's-ladder Polemonium reptans 22
- Creeping Lespedeza Lespedeza repens 70
- Creeping Love Grass Neeragrostis reptans —
- Creeping Manna Grass Glyceria acutiflora —
- Creeping Phlox Phlox stolonifera 52
- Creeping Rush Juncus repens 41
- Creeping Seedbox Ludwigia repens 58
- Creeping Spikerush Eleocharis fallax —
- Creeping Spotflower Acmella oppositifolia var. repens —
- Creeping St. John's-wort Hypericum adpressum 68
- Creeping Woodsorrel Oxalis corniculata —
- Crepe-myrtle Lagerstroemia indica —
- Crested Anoda Anoda cristata —
- Crested Coralroot Hexalectris spicata 8
- Crested Fringed Orchid Platanthera cristata 27
- Crested Wood-fern Dryopteris cristata 25
- Crimson Clover Trifolium incarnatum —
- Croomia; Elfin Shoes Croomia pauciflora —
- Cross Milkwort Polygala cruciata —
- Crossvine Bignonia capreolata 40
- Crotalaria pallida var. obovata Crotalaria pallida var. obovata —
- Croton argyranthemus Croton argyranthemus —
- Croton capitatus var. lindheimeri Croton capitatus var. lindheimeri —
- Croton elliottii Croton elliottii —
- Crow-poison Zigadenus densus 13
- Crowfoot Grass Dactyloctenium aegyptium —
- Crown-vetch Securigera varia -30
- Crowned Beggarticks Bidens coronata 87
- Ctenium floridanum Ctenium floridanum —
- Cucumber Cucumis sativus —
- Cucumber Magnolia Magnolia acuminata 72
- Cucumis anguria Cucumis anguria —
- Cucumis anguria var. longaculeatus Cucumis anguria var. longaculeatus —
- Cucurbita moschata Cucurbita moschata —
- Cucurbita pepo var. ovifera Cucurbita pepo var. ovifera —
- Cudrania tricuspidata Cudrania tricuspidata —
- Cultivated Garlic Allium sativum —
- Cultivated Rye Secale cereale —
- Culver's-root Veronicastrum virginicum 36
- Cumberland Azalea Rhododendron cumberlandense 90
- Cumberland Rosinweed Silphium brachiatum —
- Cumberland Sedge Carex cumberlandensis 58
- Cuphea procumbens Cuphea procumbens —
- Cupseed Calycocarpum lyonii —
- Curly Dock Rumex crispus —
- Curly Pondweed Potamogeton crispus -15
- Curlyheads Clematis ochroleuca 48
- Cursed Buttercup Ranunculus sceleratus 51
- Cursed Buttercup; Cursed Crowfoot Ranunculus sceleratus var. sceleratus 51
- Curtis's Goldenrod Solidago curtisii 90
- Curtis's Spurge Euphorbia curtisii 68
- Curtiss's Milkwort Polygala curtissii —
- Curtiss's Star-grass Hypoxis curtissii 17
- Curtiss's Three-awn Aristida dichotoma var. curtissii —
- Curtiss's Yellow-eyed-grass Xyris difformis var. curtissii 29
- Cuscuta compacta var. compacta Cuscuta compacta var. compacta —
- Cuscuta gronovii var. gronovii Cuscuta gronovii var. gronovii —
- Cuscuta indecora var. neuropetala Cuscuta indecora var. neuropetala —
- Cuscuta pentagona var. pentagona Cuscuta pentagona var. pentagona —
- Cut-over Muhly Muhlenbergia expansa 27
- Cuthbert's Turtlehead Chelone cuthbertii —
- Cutleaf Coneflower Rudbeckia laciniata 78
- Cutleaf Crane's-bill Geranium dissectum —
- Cutleaf Evening-primrose Oenothera laciniata 81
- Cutleaf Goldenrod Solidago arguta 90
- Cutleaf Goosefoot Dysphania multifida —
- Cutleaf Grapefern Botrychium dissectum 11
- Cutleaf Ground-cherry Physalis angulata 73
- Cutleaf Meadow-parsnip Thaspium pinnatifidum 24
- Cutleaf Selfheal Prunella laciniata —
- Cutleaf Toothwort Cardamine concatenata 51
- Cutleaf Water-milfoil Myriophyllum pinnatum 36
- Cycas revoluta Cycas revoluta —
- Cylindric-fruit Seedbox Ludwigia glandulosa 58
- Cymophyllus fraserianus Cymophyllus fraserianus —
- Cymose Beaksedge Rhynchospora recognita 44
- Cynanchum scoparium Cynanchum scoparium —
- Cynoglossum virginianum var. virginianum Cynoglossum virginianum var. virginianum —
- Cyperus articulatus Cyperus articulatus —
- Cyperus cuspidatus Cyperus cuspidatus —
- Cyperus digitatus Cyperus digitatus —
- Cyperus distinctus Cyperus distinctus —
- Cyperus drummondii Cyperus drummondii —
- Cyperus entrerianus Cyperus entrerianus —
- Cyperus esculentus var. macrostachyus Cyperus esculentus var. macrostachyus —
- Cyperus filicinus Cyperus filicinus 42
- Cyperus lanceolatus Cyperus lanceolatus —
- Cyperus lupulinus subsp. lupulinus Cyperus lupulinus subsp. lupulinus —
- Cyperus lupulinus subsp. macilentus Cyperus lupulinus subsp. macilentus —
- Cyperus ochraceus Cyperus ochraceus —
- Cyperus oxylepis Cyperus oxylepis —
- Cyperus pilosus Cyperus pilosus —
- Cyperus planifolius Cyperus planifolius —
- Cyperus polystachyos var. texensis Cyperus polystachyos var. texensis —
- Cyperus pumilus Cyperus pumilus —
- Cyperus retrorsus var. retrorsus Cyperus retrorsus var. retrorsus —
- Cyperus retrorsus var. robustus Cyperus retrorsus var. robustus —
- Cyperus sanguinolentus Cyperus sanguinolentus —
- Cyperus thyrsiflorus Cyperus thyrsiflorus —
- Cypress Spurge Euphorbia cyparissias —
- Cypress Witchgrass Dichanthelium dichotomum 49
- Cypress-knee Sedge Carex decomposita 58
- Cypress-swamp Sedge Carex joorii 58
- Cypress-vine Ipomoea quamoclit —
- Cypripedium parviflorum var. parviflorum Cypripedium parviflorum var. parviflorum —
- Cypripedium parviflorum var. pubescens Cypripedium parviflorum var. pubescens —
- Cyrilla parvifolia Cyrilla parvifolia —
- Cytisus scoparius var. scoparius Cytisus scoparius var. scoparius —
D
- Dactylis glomerata subsp. glomerata Dactylis glomerata subsp. glomerata —
- Dahoon Holly Ilex cassine 97
- Dakota Vervain; Dakota Mock Vervain Glandularia bipinnatifida —
- Dakota Vervain; Dakota Mock Vervain Glandularia bipinnatifida var. bipinnatifida —
- Dalea candida var. candida Dalea candida var. candida —
- Dalea carnea Dalea carnea —
- Dalea feayi Dalea feayi —
- Dalea pinnata var. pinnata Dalea pinnata var. pinnata 71
- Dalea pinnata var. trifoliata Dalea pinnata var. trifoliata —
- Dalea purpurea var. purpurea Dalea purpurea var. purpurea —
- Dallis-grass Paspalum dilatatum —
- Dame's Rocket Hesperis matronalis —
- Dangleberry Gaylussacia frondosa 81
- Dark Indigo Bush Amorpha nitens —
- Dark-green Bulrush Scirpus atrovirens 45
- Dark-green Sedge Carex venusta 58
- Darlington Oak Quercus hemisphaerica 88
- Darnel Ryegrass Lolium temulentum —
- Dasistoma macrophylla Dasistoma macrophylla —
- Deceptive Spinypod; Deceptive Spiny Pod Matelea decipiens —
- Decumbent Trillium Trillium decumbens —
- Deepwoods Horsebalm Collinsonia tuberosa 29
- Deer-tongue Witchgrass Dichanthelium clandestinum 49
- Deerberry Vaccinium stamineum 98
- Delphinium alabamicum Delphinium alabamicum —
- Delphinium carolinianum subsp. calciphilum Delphinium carolinianum subsp. calciphilum —
- Delphinium carolinianum subsp. carolinianum Delphinium carolinianum subsp. carolinianum —
- Delta Arrowhead Sagittaria platyphylla 58
- Dense Blazing-star Liatris spicata 52
- Dense-spike Blackroot Pterocaulon pycnostachyum 24
- Densetuft Hairsedge Bulbostylis capillaris 8
- Deptford Pink Dianthus armeria —
- Deschampsia flexuosa var. flexuosa Deschampsia flexuosa var. flexuosa —
- Descurainia pinnata subsp. brachycarpa Descurainia pinnata subsp. brachycarpa —
- Descurainia pinnata subsp. pinnata Descurainia pinnata subsp. pinnata —
- Desmodium ciliare var. ciliare Desmodium ciliare var. ciliare —
- Desmodium cuspidatum var. cuspidatum Desmodium cuspidatum var. cuspidatum 69
- Desmodium incanum Desmodium incanum —
- Desmodium incanum var. incanum Desmodium incanum var. incanum —
- Deutzia gracilis Deutzia gracilis —
- Deutzia parviflora Deutzia parviflora —
- Deutzia; Fuzzy Pride Of Rochester Deutzia crenata —
- Devil's Beggarticks Bidens frondosa 89
- Devil's-bit Chamaelirium luteum 8
- Devil's-walkingstick Aralia spinosa 71
- Diamond Flower Stenaria nigricans —
- Dicerandra linearifolia Dicerandra linearifolia —
- Dicerandra linearifolia var. linearifolia Dicerandra linearifolia var. linearifolia —
- Dicerandra linearifolia var. robustior Dicerandra linearifolia var. robustior —
- Dicerandra odoratissima Dicerandra odoratissima —
- Dicerandra radfordiana Dicerandra radfordiana —
- Dichanthelium sabulorum Dichanthelium sabulorum —
- Dichanthelium sphaerocarpon var. sphaerocarpon Dichanthelium sphaerocarpon var. sphaerocarpon —
- Dichanthelium strigosum var. glabrescens Dichanthelium strigosum var. glabrescens 49
- Dichelostemma congestum Dichelostemma congestum —
- Dichondra micrantha Dichondra micrantha —
- Diffuse Rush Juncus diffusissimus 41
- Digitaria cognata Digitaria cognata —
- Digitaria serotina Digitaria serotina —
- Dimpled Trout-lily Erythronium umbilicatum 20
- Dioclea multiflora Dioclea multiflora —
- Diodia teres var. hirsutior Diodia teres var. hirsutior —
- Diodia virginiana var. latifolia Diodia virginiana var. latifolia —
- Diodia virginiana var. virginiana Diodia virginiana var. virginiana —
- Dioscorea alata Dioscorea alata -30
- Dioscorea bulbifera Dioscorea bulbifera -30
- Dioscorea floridana Dioscorea floridana —
- Dioscorea oppositifolia Dioscorea oppositifolia —
- Ditch Fimbry Fimbristylis schoenoides —
- Ditch-stonecrop Penthorum sedoides 8
- Dixie Whitetop Aster Sericocarpus tortifolius 48
- Dodecatheon meadia subsp. meadia Dodecatheon meadia subsp. meadia —
- Dog-fennel Eupatorium capillifolium 83
- Dog-tongue Buckwheat Eriogonum tomentosum 54
- Dollarleaf Snoutbean Rhynchosia reniformis 40
- Dotted Duckmeat Landoltia punctata —
- Dotted Hawthorn Crataegus punctata 83
- Dotted Smartweed Polygonum punctatum 75
- Doubleform Snoutbean Rhynchosia difformis 40
- Dove's-foot Crane's-bill Geranium molle —
- Downy Agrimony Agrimonia pubescens 33
- Downy Arrowwood Viburnum rafinesqueanum 77
- Downy Carrion-flower Smilax pulverulenta 68
- Downy Goldenrod Solidago puberula 90
- Downy Goldenrod; Downy Golden Rod Solidago petiolaris var. petiolaris 90
- Downy Ground-cherry Physalis pubescens 73
- Downy Hawthorn Crataegus mollis —
- Downy Lobelia Lobelia puberula 48
- Downy Maiden Fern; Downy Woodfern; Soft Fern; Downy Shield Fern; Downy Maidenfern; Downy Wood Fern; Softfern; Downy Shieldfern Thelypteris dentata —
- Downy Phlox Phlox pilosa 54
- Downy Ragged Goldenrod Solidago petiolaris 90
- Downy Rattlesnake-plantain Goodyera pubescens 8
- Downy Serviceberry Amelanchier arborea 77
- Downy Woodmint Blephilia ciliata 21
- Downy Yellow False Foxglove Aureolaria virginica 46
- Downy Yellow Violet Viola pubescens —
- Draba aprica Draba aprica —
- Dracopis amplexicaulis Dracopis amplexicaulis —
- Drooping Bulrush Scirpus lineatus 45
- Drooping Prickly-pear Opuntia monacantha —
- Drooping Sedge Carex prasina 58
- Drooping Trillium Trillium flexipes 24
- Drosera rotundifolia var. rotundifolia Drosera rotundifolia var. rotundifolia —
- Drosera tracyi Drosera tracyi —
- Drug Fumitory Fumaria officinalis —
- Drummond's St. John's-wort Hypericum drummondii 68
- Drummonds Dropseed Sporobolus compositus var. drummondii —
- Drummonds Red Maple Acer rubrum var. drummondii —
- Dryland White Bluestem Andropogon capillipes 54
- Drymaria cordata Drymaria cordata —
- Drymaria cordata subsp. cordata Drymaria cordata subsp. cordata —
- Dune Bluestem Schizachyrium littorale —
- Dune Ground-cherry Physalis walteri 73
- Dune Hairgrass Muhlenbergia filipes 27
- Dune Marsh-elder Iva imbricata 36
- Dune Sandspur Cenchrus tribuloides 49
- Dusty Downy Goldenrod Solidago puberula var. pulverulenta 90
- Dutchman's Breeches Dicentra cucullaria 14
- Dwarf Arrowhead Sagittaria subulata 58
- Dwarf Azalea Rhododendron atlanticum 90
- Dwarf Bladderwort Utricularia olivacea —
- Dwarf Chinquapin Oak Quercus prinoides 88
- Dwarf Cinquefoil Potentilla canadensis 71
- Dwarf Crested Iris Iris cristata 58
- Dwarf Filmy-fern Trichomanes petersii 8
- Dwarf Ginseng Panax trifolius —
- Dwarf Glasswort Salicornia bigelovii 19
- Dwarf Hackberry Celtis tenuifolia 65
- Dwarf Hawthorn Crataegus munda 77
- Dwarf Huckleberry Gaylussacia dumosa 82
- Dwarf Indigo Bush; Dwarf Indigobush Amorpha herbacea var. herbacea —
- Dwarf Larkspur Delphinium tricorne 54
- Dwarf Live Oak Quercus minima 85
- Dwarf Locust Robinia hispida var. nana 70
- Dwarf Milkwort Polygala nana —
- Dwarf Palmetto Sabal minor 68
- Dwarf Pawpaw Asimina parviflora 55
- Dwarf Plantain Plantago pusilla 69
- Dwarf Skullcap Scutellaria parvula 37
- Dwarf Snapdragon Chaenorhinum minus —
- Dwarf Spikerush Eleocharis parvula 34
- Dwarf Spotflower Acmella pusilla —
- Dwarf St. John's-wort Hypericum mutilum 68
- Dwarf Sundew Drosera brevifolia 20
- Dwarf Trillium Trillium pusillum var. pusillum —
- Dwarf Upland Willow Salix humilis var. tristis —
- Dwarf Violet Iris Iris verna 57
- Dwarf Water Clover Marsilea minuta -30
- Dwarf Witch-alder Fothergilla gardenii 22
- Dyschoriste humistrata Dyschoriste humistrata —
- Dyschoriste oblongifolia Dyschoriste oblongifolia —
- Dysphania anthelmintica Dysphania anthelmintica —
E
- Ear Leaf Goldenrod Solidago auriculata —
- Earleaf Greenbrier Smilax auriculata 72
- Early Azalea Rhododendron prinophyllum 90
- Early Bluegrass Poa cuspidata 59
- Early Buttercup Ranunculus fascicularis 54
- Early Crowngrass Paspalum praecox 66
- Early Goldenrod Solidago juncea 90
- Early Meadow-rue Thalictrum dioicum 47
- Early Saxifrage Saxifraga virginiensis 24
- Early St. John's-wort Hypericum nudiflorum 71
- Early Whitetop Fleabane Erigeron vernus 87
- Early Wild-rye Elymus macgregorii 46
- Early Winter-cress Barbarea verna —
- Eastern Black Nightshade Solanum ptycanthum 73
- Eastern Blackeyed Susan Rudbeckia hirta var. hirta 75
- Eastern Bloodleaf Iresine rhizomatosa 19
- Eastern Blue-eyed-grass Sisyrinchium atlanticum 16
- Eastern Bluestar Amsonia tabernaemontana 25
- Eastern Bottlebrush-grass Elymus hystrix 46
- Eastern Boxelder Acer negundo var. negundo 85
- Eastern Bracken Pteridium aquilinum var. latiusculum 30
- Eastern Columbine Aquilegia canadensis 47
- Eastern Cottonwood Populus deltoides 67
- Eastern False-aloe Manfreda virginica 20
- Eastern False-Dragonhead Physostegia purpurea 26
- Eastern Feather Bells Stenanthium gramineum var. gramineum 13
- Eastern Featherbells Stenanthium gramineum 13
- Eastern Flowering Spurge Euphorbia corollata 68
- Eastern Fox Sedge Carex triangularis —
- Eastern Gamagrass Tripsacum dactyloides 29
- Eastern Goat's-beard Aruncus dioicus 26
- Eastern Grasswort Lilaeopsis chinensis —
- Eastern Gray Beardtongue Penstemon canescens 73
- Eastern Gum Bully Sideroxylon lanuginosum —
- Eastern Hawthorn Crataegus macrosperma 83
- Eastern Hay-scented Fern Dennstaedtia punctilobula —
- Eastern Hemlock Tsuga canadensis 70
- Eastern Leatherwood Dirca palustris 24
- Eastern Marsh Fern Thelypteris palustris var. pubescens 35
- Eastern Milkpea Galactia regularis 73
- Eastern Narrowleaf Sedge Carex amphibola 58
- Eastern Needle Grass Piptochaetium avenaceum 26
- Eastern Oxeye Heliopsis helianthoides var. helianthoides 51
- Eastern Prairie Blue Wild Indigo Baptisia australis var. aberrans —
- Eastern Prickly Pear Opuntia humifusa 73
- Eastern Purple Bladderwort Utricularia purpurea 22
- Eastern Purple Coneflower Echinacea purpurea 48
- Eastern Red Cedar Juniperus virginiana 59
- Eastern Red Maple Acer rubrum var. rubrum 85
- Eastern Redbud Cercis canadensis 73
- Eastern Rough Sedge Carex scabrata 58
- Eastern Shooting-star Dodecatheon meadia 27
- Eastern Showy Aster Eurybia spectabilis —
- Eastern Silvery Aster Symphyotrichum concolor 93
- Eastern Smooth Beardtongue Penstemon laevigatus 75
- Eastern Star Sedge Carex radiata 58
- Eastern Swamp Privet Forestiera acuminata —
- Eastern Teaberry Gaultheria procumbens 29
- Eastern Turkeybeard Xerophyllum asphodeloides 8
- Eastern Wahoo Euonymus atropurpureus 65
- Eastern White Pine Pinus strobus 74
- Eastern Winged Sumac Rhus copallinum var. latifolia 87
- Eastern Winged Sumac; Eastern Flameleaf Sumac; Eastern Flame Leaf Sumac; Eastern Flameleaved Sumac; Eastern Flame Leaved Sumac Rhus copallinum var. copallinum —
- Eastern Woodland Sedge Carex blanda 58
- Eaton's Ladies'-tresses Spiranthes eatonii —
- Eaton's Witchgrass Dichanthelium spretum 49
- Ebony Spleenwort Asplenium platyneuron 15
- Echinodorus tenellus Echinodorus tenellus —
- Edgeworthia chrysantha Edgeworthia chrysantha —
- Eggleaf Witchgrass Dichanthelium ovale 49
- Elaeagnus umbellata var. parvifolia Elaeagnus umbellata var. parvifolia —
- Elatine brachysperma Elatine brachysperma —
- Elegant Hairgrass Aira elegans —
- Eleocharis acicularis var. acicularis Eleocharis acicularis var. acicularis —
- Eleocharis bicolor Eleocharis bicolor —
- Eleocharis dulcis Eleocharis dulcis —
- Eleocharis flavescens var. flavescens Eleocharis flavescens var. flavescens —
- Eleocharis minima Eleocharis minima —
- Eleocharis montana Eleocharis montana —
- Elf Orpine Diamorpha smallii 52
- Elionurus tripsacoides Elionurus tripsacoides —
- Elliott's Aster Symphyotrichum elliottii —
- Elliott's Beaksedge Rhynchospora elliottii 44
- Elliott's Bentgrass Agrostis elliottiana 44
- Elliott's Blueberry Vaccinium elliottii 98
- Elliott's Fanpetals Sida elliottii 66
- Elliott's Gentian Gentiana catesbaei —
- Elliott's Goldenrod Solidago latissimifolia —
- Elliott's Hairsedge Bulbostylis ciliatifolia var. coarctata 8
- Elliott's Lovegrass Eragrostis elliottii 32
- Elliott's Milkpea Galactia elliottii —
- Elliott's Rush Juncus elliottii 41
- Elliott's Sedge Carex elliottii 58
- Elliottia; Southern Plume; Georgia Plume; Laurel Elliottia racemosa —
- Elliotts Bluestem Andropogon gyrans 54
- Elmleaf Golden Rod; Elmleaved Golden Rod; Elm Leaf Golden Rod; Elm Leaved Golden Rod; Elmleaf Goldenrod; Elmleaved Goldenrod; Elm Leaf Goldenrod; Elm Leaved Goldenrod; Bog Goldenrod; Bog Golden Rod Solidago uliginosa var. uliginosa 90
- Elmleaf Goldenrod Solidago ulmifolia 92
- Elymus hystrix var. hystrix Elymus hystrix var. hystrix —
- Elymus semicostatus Elymus semicostatus —
- Elymus virginicus var. virginicus Elymus virginicus var. virginicus —
- Elytraria caroliniensis Elytraria caroliniensis —
- Elytraria caroliniensis var. caroliniensis Elytraria caroliniensis var. caroliniensis —
- Emilia sonchifolia Emilia sonchifolia —
- Emilia sonchifolia var. sonchifolia Emilia sonchifolia var. sonchifolia —
- Engelmann's Arrowhead Sagittaria engelmanniana 58
- Englemann's Spikerush Eleocharis engelmannii 34
- English Ivy Hedera helix -85
- English Plantain Plantago lanceolata —
- English Violet Viola odorata —
- Entangled Hawthorn Crataegus intricata 83
- Entireleaf Yellow False Foxglove Aureolaria laevigata —
- Epidendrum magnoliae Epidendrum magnoliae —
- Epidendrum magnoliae var. magnoliae Epidendrum magnoliae var. magnoliae —
- Epling's Hedge-nettle Stachys eplingii 56
- Equisetum hyemale Equisetum hyemale —
- Equisetum hyemale var. affine Equisetum hyemale var. affine —
- Eragrostis amabilis Eragrostis amabilis —
- Eragrostis atrovirens Eragrostis atrovirens —
- Eragrostis bahiensis Eragrostis bahiensis —
- Eragrostis ciliaris Eragrostis ciliaris —
- Eragrostis cumingii Eragrostis cumingii —
- Eragrostis secundiflora subsp. oxylepis Eragrostis secundiflora subsp. oxylepis —
- Eragrostis unioloides Eragrostis unioloides —
- Erechtites hieraciifolius var. hieraciifolius Erechtites hieraciifolius var. hieraciifolius —
- Erect Coinleaf Centella erecta 8
- Erect Knotweed Polygonum erectum 75
- Erect Milkpea Galactia erecta 73
- Erect Snoutbean Rhynchosia tomentosa 40
- Erect Spiderling Boerhavia erecta —
- Erectleaf Witchgrass Dichanthelium erectifolium 49
- Erigeron strigosus var. beyrichii Erigeron strigosus var. beyrichii —
- Erigeron strigosus var. calcicola Erigeron strigosus var. calcicola —
- Eriobotrya japonica Eriobotrya japonica —
- Eriocaulon koernickianum Eriocaulon koernickianum —
- Eriocaulon ravenelii Eriocaulon ravenelii —
- Eriochloa michauxii Eriochloa michauxii —
- Eriochloa michauxii var. michauxii Eriochloa michauxii var. michauxii —
- Eriochloa punctata Eriochloa punctata —
- Erodium cicutarium subsp. cicutarium Erodium cicutarium subsp. cicutarium —
- Eryngium aquaticum var. aquaticum Eryngium aquaticum var. aquaticum —
- Eryngium aquaticum var. ravenelii Eryngium aquaticum var. ravenelii —
- Eryngium aromaticum Eryngium aromaticum —
- Eryngium baldwinii Eryngium baldwinii —
- Eryngium foetidum Eryngium foetidum —
- Eryngium yuccifolium var. synchaetum Eryngium yuccifolium var. synchaetum 48
- Erythrina crista-galli Erythrina crista-galli —
- Erythronium americanum subsp. harperi Erythronium americanum subsp. harperi —
- Erythronium umbilicatum subsp. umbilicatum Erythronium umbilicatum subsp. umbilicatum —
- Eschscholzia californica subsp. californica Eschscholzia californica subsp. californica —
- Eubotrys racemosa Eubotrys racemosa —
- Eubotrys recurva Eubotrys recurva —
- Euonymus alatus var. alatus Euonymus alatus var. alatus —
- Euonymus atropurpureus var. atropurpureus Euonymus atropurpureus var. atropurpureus —
- Euonymus bungeanus Euonymus bungeanus —
- Euonymus fortunei var. radicans Euonymus fortunei var. radicans —
- Eupatorium album var. album Eupatorium album var. album —
- Eupatorium hyssopifolium var. laciniatum Eupatorium hyssopifolium var. laciniatum —
- Eupatorium leucolepis var. leucolepis Eupatorium leucolepis var. leucolepis —
- Eupatorium perfoliatum var. perfoliatum Eupatorium perfoliatum var. perfoliatum —
- Eupatorium rotundifolium var. ovatum Eupatorium rotundifolium var. ovatum —
- Eupatorium rotundifolium var. rotundifolium Eupatorium rotundifolium var. rotundifolium —
- Eupatorium rotundifolium var. scabridum Eupatorium rotundifolium var. scabridum —
- Euphorbia dentata var. dentata Euphorbia dentata var. dentata —
- Euphorbia discoidalis Euphorbia discoidalis —
- Euphorbia floridana Euphorbia floridana —
- Euphorbia inundata Euphorbia inundata —
- Euphorbia tetrapora Euphorbia tetrapora —
- Eurasian Red Raspberry; Eurasian Red Rasp Berry Rubus frondosus —
- Eurasian Water-milfoil Myriophyllum spicatum -55
- European Columbine Aquilegia vulgaris —
- European Cornsalad Valerianella locusta —
- European Elder Sambucus nigra —
- European Field Pansy Viola arvensis —
- European Gray Willow Salix cinerea —
- European Heliotrope Heliotropium europaeum —
- European Horsechestnut Aesculus hippocastanum —
- European Privet Ligustrum vulgare —
- European Sweetflag Acorus calamus —
- European Vervain Verbena officinalis —
- European Waterclover Marsilea quadrifolia —
- European White Birch; Downy Birch Betula pubescens —
- Eurybia avita Eurybia avita 65
- Eurybia eryngiifolia Eurybia eryngiifolia —
- Eurybia jonesiae Eurybia jonesiae —
- Eustachys distichophylla Eustachys distichophylla —
- Eustachys floridana Eustachys floridana —
- Eustachys paspaloides Eustachys paspaloides —
- Eustachys paspaloides subsp. caribaea Eustachys paspaloides subsp. caribaea —
- Eustachys retusa Eustachys retusa —
- Eustis Lake Beardtongue Penstemon australis 73
- Evax verna Evax verna —
- Evax verna var. verna Evax verna var. verna —
- Everlasting Pea Lathyrus latifolius —
- Evolvulus sericeus Evolvulus sericeus —
- Evolvulus sericeus var. sericeus Evolvulus sericeus var. sericeus —
F
- Fairy Beaksedge Rhynchospora pusilla 44
- Fall Panic Grass Panicum dichotomiflorum var. dichotomiflorum 49
- Fall Panicgrass Panicum dichotomiflorum 49
- Fall Phlox Phlox paniculata 52
- False Boneset Brickellia eupatorioides 27
- False Boneset Brickellia eupatorioides var. eupatorioides 27
- False Daisy Eclipta prostrata —
- False Fennel Eupatorium leptophyllum 83
- False Garlic Nothoscordum bivalve 77
- False Goat's-beard Astilbe biternata 13
- False Hop Sedge Carex lupuliformis 58
- False Indigo-bush Amorpha fruticosa 77
- False Maiden-fern Macrothelypteris torresiana —
- False Nettle Boehmeria cylindrica 43
- False Solomon's-seal Maianthemum racemosum 48
- False Teeth Skullcap Scutellaria pseudoserrata 37
- Fanleaf Hawthorn; Fan Leaf Hawthorn; Fanleaved Hawthorn; Fan Leaved Hawthorn; Fanleaf Haw Thorn; Fan Leaf Haw Thorn; Fanleaved Haw Thorn; Fan Leaved Haw Thorn Crataegus flabellata —
- Fascicled Beaksedge Rhynchospora fascicularis 44
- Feather Fingergrass Chloris virgata —
- Feather-bristle Beaksedge Rhynchospora oligantha 44
- Featherstem Clubmoss Lycopodiella prostrata 11
- Fennel Foeniculum vulgare —
- Fernald's Tick-trefoil Desmodium fernaldii —
- Fernleaf Phacelia Phacelia bipinnatifida 48
- Fernleaf Yellow False Foxglove Aureolaria pedicularia 46
- Fescue Sedge Carex festucacea 58
- Festuca brevipila Festuca brevipila —
- Festuca rubra subsp. rubra Festuca rubra subsp. rubra —
- Few Flower Nut Rush Scleria pauciflora var. pauciflora 12
- Fewflower Beaksedge Rhynchospora rariflora 44
- Fewflower Milkweed Asclepias lanceolata 67
- Fewflower Nutrush Scleria pauciflora 12
- Fewflower Tick-trefoil Desmodium pauciflorum 69
- Fibrous-root Sedge Carex communis 58
- Ficus pumila Ficus pumila —
- Fiddle Dock Rumex pulcher —
- Field Bindweed Convolvulus arvensis —
- Field Brome Bromus arvensis —
- Field Burweed Soliva sessilis —
- Field Chickweed Cerastium arvense —
- Field Garlic Allium vineale -55
- Field Horsetail Equisetum arvense 13
- Field Milkwort Polygala sanguinea —
- Field Mint Mentha arvensis —
- Field Paspalum Paspalum laeve 66
- Field Pennycress Thlaspi arvense —
- Field Pepperweed Lepidium campestre —
- Field Pumpkin Cucurbita pepo —
- Field Sorrel Rumex acetosella —
- Field Thistle Cirsium discolor 92
- Filago vulgaris Filago vulgaris —
- Filmy Angelica Angelica triquinata 28
- Fimbristylis brevivaginata Fimbristylis brevivaginata —
- Fimbristylis caroliniana Fimbristylis caroliniana 15
- Fimbristylis castanea Fimbristylis castanea 15
- Fimbristylis puberula Fimbristylis puberula 15
- Fimbristylis puberula var. puberula Fimbristylis puberula var. puberula —
- Fire Cherry Prunus pensylvanica 100
- Fire Pink Silene virginica 42
- Fire Pink Silene virginica var. virginica —
- Five-leaf Akebia Akebia quinata -55
- Five-stamen Chickweed Cerastium semidecandrum —
- Fiveangle Dodder Cuscuta pentagona 43
- Fivelobe Cucumber Cayaponia quinqueloba 8
- Flame Azalea Rhododendron calendulaceum 90
- Flat Pea Lathyrus sylvestris —
- Flat Spiked Sedge Carex planispicata 58
- Flat-stem Spikerush Eleocharis compressa 34
- Flatrock Onion; Flat Rock Onion Allium speculae —
- Flattened Oatgrass Danthonia compressa 33
- Flattened Pipewort Eriocaulon compressum 14
- Flaveria bidentis Flaveria bidentis —
- Flaxleaf False Foxglove Agalinis linifolia 54
- Fleshy Hawthorn Crataegus succulenta 83
- Flexuous White-edge Sedge Carex debilis var. rudgei 58
- Floating Bladderwort Utricularia radiata 22
- Floating Mannagrass Glyceria septentrionalis 33
- Floating Marsh-pennywort Hydrocotyle ranunculoides 45
- Floating Seedbox Ludwigia peploides —
- Florida Adder's-mouth Malaxis spicata —
- Florida Cottonseed; Common Cottonweed; Snakecotton; Florida Cotton Seed; Common Cotton Weed; Snake Cotton Froelichia floridana var. floridana —
- Florida Cottonweed Froelichia floridana 15
- Florida Hedge Hyssop Gratiola floridana —
- Florida Hedge-nettle Stachys floridana —
- Florida Hoary-pea Tephrosia florida 48
- Florida Hobblebush Agarista populifolia —
- Florida Ladies'-tresses Spiranthes floridana —
- Florida Maple Acer floridanum 85
- Florida Mudmidget Wolffiella gladiata 8
- Florida Paspalum Paspalum floridanum 66
- Florida Peanut-grass Amphicarpum muehlenbergianum —
- Florida Pellitory Parietaria floridana 25
- Florida Sedge Carex floridana 58
- Florida Thoroughwort Eupatorium anomalum 83
- Florida Tick-trefoil Desmodium tortuosum —
- Florida Ticktrefoil; Florida Tick Trefoil Desmodium floridanum —
- Florida Torreya Torreya taxifolia —
- Florida Wood Sedge Carex digitalis var. floridana 58
- Florida Yellow Bladderwort Utricularia floridana —
- Florida Yellow Flax Linum floridanum 44
- Florida Yellow Flax Linum floridanum var. floridanum —
- Florida Yellow-eyed-grass Xyris floridana —
- Floss-flower Ageratum houstonianum —
- Flower-of-an-hour Hibiscus trionum —
- Flowering Dogwood Cornus florida 100
- Fly-poison Amianthium muscitoxicum 8
- Forestiera godfreyi Forestiera godfreyi —
- Forestiera segregata Forestiera segregata —
- Forestiera segregata var. segregata Forestiera segregata var. segregata —
- Forked Bluecurls Trichostema dichotomum 32
- Forked Catchfly Silene dichotoma —
- Forked Fimbry Fimbristylis dichotoma —
- Forked Rush Juncus dichotomus 41
- Forked Witchgrass; Cypress Panicgrass; Forked Witch Grass; Cypress Panic Grass Dichanthelium dichotomum var. dichotomum 49
- Forkleaf Toothwort Cardamine dissecta 51
- Formosa Firethorn Pyracantha koidzumii —
- Fortune's Holly-fern Cyrtomium fortunei —
- Four-angle Flatsedge Cyperus tetragonus 42
- Four-angle Rose-gentian Sabatia quadrangula 14
- Fourleaf Allseed Polycarpon tetraphyllum —
- Fourleaf Milkweed Asclepias quadrifolia 67
- Fourleaf Wild Yam Dioscorea quaternata 15
- Fowl Mannagrass Glyceria striata 33
- Fox Grape Vitis labrusca 73
- Fox Sedge Carex vulpinoidea 58
- Foxglove Beardtongue Penstemon digitalis 73
- Foxtail Clubmoss Lycopodiella alopecuroides 11
- Foxtail Millet Setaria italica —
- Fragaria virginiana subsp. virginiana Fragaria virginiana subsp. virginiana —
- Fragrant Beaksedge Rhynchospora odorata —
- Fragrant Bedstraw Galium triflorum 55
- Fragrant Flatsedge Cyperus odoratus 42
- Fragrant Rabbit-tobacco Pseudognaphalium obtusifolium 35
- Fragrant Spikesedge Kyllinga odorata 42
- Fragrant Sumac Rhus aromatica 81
- Fragrant Sumac; Squawbush; Squaw Bush Rhus aromatica var. aromatica —
- Fragrant Water-lily Nymphaea odorata 56
- Frank's Sedge Carex frankii 58
- Franklinia alatamaha Franklinia alatamaha —
- Fraser Fir Abies fraseri 65
- Fraser Magnolia Magnolia fraseri 72
- Fraser's Loosestrife Lysimachia fraseri 58
- French Rose Rosa gallica —
- French Tamarisk Tamarix gallica -15
- Fringed Beaksedge Rhynchospora ciliaris 44
- Fringed Bluestar Amsonia ciliata 25
- Fringed Climbing Buckwheat Polygonum cilinode 75
- Fringed Loosestrife Lysimachia ciliata 58
- Fringed Meadow-beauty Rhexia petiolata 43
- Fringed Nut Rush Scleria ciliata var. ciliata 12
- Fringed Nut Rush Scleria ciliata var. glabra 12
- Fringed Nutrush Scleria ciliata 12
- Fringed Phacelia Phacelia fimbriata 48
- Fringed Polygala Polygala paucifolia 29
- Fringed Quickweed Galinsoga quadriradiata —
- Fringed Sedge Carex crinita 58
- Fringed Star-grass Hypoxis juncea 17
- Fringed Yellow-eyed-grass Xyris fimbriata 29
- Fringetree Chionanthus virginicus 42
- Frost Aster Symphyotrichum pilosum 93
- Frost Grape Vitis vulpina 73
- Frosted Hawthorn Crataegus pruinosa 83
- Frostweed; White Crownbeard Verbesina virginica var. virginica 80
- Fuirena breviseta Fuirena breviseta 8
- Fuirena longa Fuirena longa —
- Fuirena pumila Fuirena pumila 8
- Fuirena scirpoidea Fuirena scirpoidea —
- Fumaria officinalis subsp. officinalis Fumaria officinalis subsp. officinalis —
- Fumaria parviflora Fumaria parviflora —
- Fuzzy Wuzzy Sedge Carex hirsutella 58
G
- Gaillardia aestivalis var. aestivalis Gaillardia aestivalis var. aestivalis —
- Gaillardia pulchella var. picta Gaillardia pulchella var. picta —
- Galactia floridana Galactia floridana —
- Galax Galax urceolata 17
- Galium circaezans var. circaezans Galium circaezans var. circaezans —
- Galium circaezans var. hypomalacum Galium circaezans var. hypomalacum —
- Galium obtusum subsp. australe Galium obtusum subsp. australe —
- Galium obtusum subsp. filifolium Galium obtusum subsp. filifolium —
- Galium obtusum subsp. obtusum Galium obtusum subsp. obtusum —
- Galium odoratum Galium odoratum —
- Galium orizabense subsp. laevicaule Galium orizabense subsp. laevicaule —
- Galium pilosum var. pilosum Galium pilosum var. pilosum —
- Galium pilosum var. puncticulosum Galium pilosum var. puncticulosum —
- Galium tricornutum Galium tricornutum —
- Gamochaeta falcata Gamochaeta falcata —
- Gaping Grass Steinchisma hians 49
- Garden Asparagus Asparagus officinalis —
- Garden Cosmos Cosmos bipinnatus —
- Garden Dew Berry Rubus aboriginum —
- Garden Orpine Hylotelephium erythrostictum —
- Garden Parsley Petroselinum crispum —
- Garden Radish Raphanus sativus —
- Garden Sage Salvia officinalis —
- Garden Star-of-Bethlehem Ornithogalum umbellatum —
- Garden Tomato Solanum lycopersicum —
- Garden Vetch Vicia sativa —
- Garlic Mustard Alliaria petiolata —
- Gattingers Eastern Bluestar Amsonia tabernaemontana var. salicifolia 25
- Gattingers Prairie Clover Dalea gattingeri —
- Gaura drummondii Gaura drummondii —
- Gaura parviflora Gaura parviflora —
- Gaura sinuata Gaura sinuata —
- Gaylussacia mosieri Gaylussacia mosieri —
- Gaylussacia tomentosa Gaylussacia tomentosa —
- Gentiana saponaria var. saponaria Gentiana saponaria var. saponaria —
- Gentianella quinquefolia Gentianella quinquefolia 29
- Gentianella quinquefolia subsp. quinquefolia Gentianella quinquefolia subsp. quinquefolia —
- Georgia Aster Symphyotrichum georgianum 93
- Georgia Bulrush Scirpus georgianus 45
- Georgia Calamint Clinopodium georgianum 36
- Georgia Frostweed Helianthemum georgianum 32
- Georgia Holly Ilex longipes 97
- Georgia Indigo-bush Amorpha georgiana 77
- Georgia Oak Quercus georgiana 88
- Georgia Rush Juncus georgianus 41
- German Iris Iris germanica —
- Geum canadense var. canadense Geum canadense var. canadense —
- Gholson's Sedge Carex gholsonii —
- Giant Arrowhead Sagittaria montevidensis —
- Giant Bristlegrass Setaria magna 43
- Giant Cane Arundinaria gigantea 45
- Giant Goldenrod Solidago gigantea 90
- Giant Ironweed Vernonia gigantea 75
- Giant Ragweed Ambrosia trifida 67
- Giant Reed Arundo donax -30
- Giant Salvinia Salvinia molesta -85
- Giant Sedge Carex gigantea 58
- Giant Sunflower Helianthus giganteus 96
- Giant Whitetop Sedge Rhynchospora latifolia 44
- Giant-spiral Ladies'-tresses Spiranthes longilabris —
- Glade Blue Curls Trichostema brachiatum 31
- Glade Fern Diplazium pycnocarpon 21
- Glade Lobelia Lobelia glandulosa 48
- Glade Rayless Goldenrod; West Gulf Coastal Plain Rayless Goldenrod; Glade Rayless Golden Rod; West Gulf Coastal Plain Rayless Golde Rod Bigelowia nuttallii —
- Glade St. Johnswort Hypericum dolabriforme —
- Glade Violet Viola egglestonii —
- Glade Wild Quinine Parthenium auriculatum —
- Gladiolus papilio Gladiolus papilio —
- Glandular Dodder; Peruvian Dodder Cuscuta obtusiflora —
- Glandular Dodder; Peruvian Dodder Cuscuta obtusiflora var. glandulosa —
- Glaucium corniculatum Glaucium corniculatum —
- Globe Beaksedge Rhynchospora globularis 44
- Globe Flatsedge Cyperus echinatus 42
- Globefruit Seedbox Ludwigia sphaerocarpa 58
- Globular Prairie Cone Flower Ratibida pinnata —
- Glossy Privet Ligustrum lucidum -85
- Glossyseed Star-grass Hypoxis sessilis 17
- Glowing Nightshade Solanum pseudogracile 73
- Goat's-rue Tephrosia virginiana 48
- Goats Beard Aruncus dioicus var. dioicus 26
- Godfrey's Sandwort Minuartia godfreyi —
- Godfrey's Sedge Carex godfreyi —
- Godfrey's Thoroughwort Eupatorium godfreyanum 83
- Golden Bamboo Phyllostachys aurea -55
- Golden Colicroot Aletris aurea 14
- Golden Crownbeard Verbesina encelioides —
- Golden Hedge-hyssop Gratiola aurea 8
- Golden Hop Clover Trifolium aureum —
- Golden Ragwort Packera aurea 85
- Golden St. John's-wort Hypericum frondosum 71
- Golden Tickseed Coreopsis tinctoria 65
- Golden-club Orontium aquaticum 33
- Golden-crest Lophiola aurea 14
- Golden-mane Tickseed Coreopsis basalis —
- Goldenfruit Sedge Carex aureolensis 58
- Goldenseal Hydrastis canadensis 8
- Goldie's Wood-fern Dryopteris goldiana 25
- Gomphrena serrata Gomphrena serrata —
- Graceful Goldenrod Solidago gracillima 90
- Graceful Sedge Carex gracillima 58
- Granite Flatsedge Cyperus granitophilus 42
- Granite Gooseberry Ribes curvatum —
- Granite Stonecrop Sedum pusillum 52
- Grape Honeysuckle Lonicera reticulata —
- Grass Leaf Gayfeather Liatris pilosa 52
- Grass-leaved Starwort Stellaria graminea —
- Grassleaf Barbara's-buttons Marshallia graminifolia 13
- Grassleaf Ladies'-tresses Spiranthes praecox 22
- Grassleaf Lettuce Lactuca graminifolia 89
- Grassleaf Rush Juncus marginatus 41
- Grasslike Fimbry Fimbristylis littoralis —
- Grassy Arrowhead Sagittaria graminea 58
- Gratiola hispida Gratiola hispida —
- Gratiola virginiana var. virginiana Gratiola virginiana var. virginiana —
- Gray Everlasting Gamochaeta coarctata —
- Gray Goldenrod Solidago nemoralis 94
- Gray Goldenrod; Old Field Goldenrod Solidago nemoralis var. nemoralis —
- Gray Ground-cherry Physalis grisea 73
- Gray-hairy Wild Indigo Baptisia cinerea —
- Gray's Beaksedge Rhynchospora grayi 44
- Gray's Flatsedge Cyperus grayi 42
- Gray's Sedge Carex grayi 58
- Great Blue Lobelia Lobelia siphilitica 49
- Great Indian-plantain Arnoglossum reniforme 46
- Great Plains Flatsedge Cyperus lupulinus 42
- Great Plains Ladies Tresses Spiranthes magnicamporum —
- Great Ragweed Ambrosia trifida var. trifida 67
- Great Yellow Woodsorrel Oxalis grandis 57
- Greater Burdock Arctium lappa —
- Greater Celandine Chelidonium majus —
- Greater Fringed Gentian Gentianopsis crinita 29
- Greater Marsh St. John's-wort Triadenum walteri 68
- Greater Purple Fringed Orchid Platanthera grandiflora 27
- Greater Straw Sedge Carex normalis 58
- Greater Tickseed Coreopsis major 65
- Green Adder's-mouth Malaxis unifolia 8
- Green Antelopehorn Asclepias viridis —
- Green Arrow-arum Peltandra virginica 8
- Green Ash Fraxinus pennsylvanica 75
- Green Bristlegrass Setaria viridis —
- Green Carpetweed Mollugo verticillata —
- Green Dragon Arisaema dracontium 18
- Green False-hellebore Veratrum viride 19
- Green Field-speedwell Veronica agrestis —
- Green Flatsedge Cyperus virens 42
- Green Foxtail Setaria viridis var. viridis -30
- Green Hawthorn Crataegus viridis 83
- Green Hawthorn Crataegus viridis var. viridis —
- Green Milkweed Asclepias viridiflora 67
- Green Pitcherplant Sarracenia oreophila 42
- Green-violet Hybanthus concolor 15
- Greenish-white Sedge Carex albolutescens 58
- Grooved Yellow Flax Linum sulcatum 44
- Groovestem Indian Plantain Arnoglossum plantagineum —
- Ground Juniper Juniperus communis var. depressa 59
- Ground-ivy Glechoma hederacea —
- Groundsel-tree Baccharis halimifolia 81
- Gulf Coast Spikerush Eleocharis cellulosa 34
- Gulf Coast Swallow-wort Cynanchum angustifolium —
- Gulf Croton Croton punctatus 74
- Gulf Sebastian-bush Ditrysinia fruticosa 20
- Gymnopogon chapmanianus Gymnopogon chapmanianus —
- Gymnostyles stolonifera Gymnostyles stolonifera —
H
- Habenaria quinqueseta Habenaria quinqueseta —
- Habranthus tubispathus Habranthus tubispathus —
- Hackelochloa granularis Hackelochloa granularis —
- Hair-awn Muhly Muhlenbergia capillaris 27
- Hairy Alumroot Heuchera villosa 25
- Hairy Angelica Angelica venenosa 28
- Hairy Bedstraw Galium pilosum 55
- Hairy Beggarticks Bidens alba -30
- Hairy Bittercress Cardamine hirsuta —
- Hairy Blueberry Vaccinium hirsutum 98
- Hairy Bluestem Andropogon glomeratus var. hirsutior —
- Hairy Bush Honeysuckle Diervilla rivularis 36
- Hairy Buttercup Ranunculus sardous —
- Hairy Cat's-ear Hypochaeris radicata —
- Hairy Cluster-vine Jacquemontia tamnifolia -30
- Hairy Crabgrass Digitaria sanguinalis —
- Hairy Evening Primrose Oenothera villosa —
- Hairy Fleabane Conyza bonariensis —
- Hairy Fleabane; Robins Plantain Erigeron pulchellus var. pulchellus 87
- Hairy Forked Nailwort Paronychia fastigiata 8
- Hairy Four-o'clock Mirabilis albida 29
- Hairy Goldenrod Solidago hispida 90
- Hairy Goldenrod Solidago hispida var. hispida 90
- Hairy Indigo Indigofera hirsuta -30
- Hairy Jointgrass Arthraxon hispidus —
- Hairy Lespedeza Lespedeza hirta 71
- Hairy Lettuce Lactuca hirsuta 89
- Hairy Lipfern Cheilanthes lanosa 8
- Hairy Maiden-fern Thelypteris hispidula —
- Hairy Mock-orange Philadelphus hirsutus 37
- Hairy Phlox Phlox amoena 52
- Hairy Pinweed Lechea mucronata 22
- Hairy Rockcress Arabis hirsuta —
- Hairy Seedbox Ludwigia pilosa 58
- Hairy Skullcap Scutellaria elliptica 37
- Hairy Skullcap Scutellaria elliptica var. elliptica 37
- Hairy Small-leaf Tick-trefoil Desmodium ciliare 69
- Hairy Smartweed Polygonum hirsutum 75
- Hairy Solomon's-seal Polygonatum pubescens 19
- Hairy Spiderwort Tradescantia hirsuticaulis 55
- Hairy St. John's-wort Hypericum setosum 68
- Hairy Sunflower Helianthus hirsutus 96
- Hairy Sweet-cicely Osmorhiza claytonii 24
- Hairy Umbrella Sedge Fuirena squarrosa 8
- Hairy Vetch Vicia villosa —
- Hairy Wild-petunia Ruellia humilis 43
- Hairy Woodland Brome Bromus pubescens 45
- Hairy Woodmint Blephilia hirsuta 20
- Hairy Woodrush Luzula acuminata 12
- Hairy Yellow Violet Viola pubescens var. pubescens 77
- Hairy-fruit Chervil Chaerophyllum tainturieri 8
- Hairy-jointed Meadow-parsnip Thaspium barbinode 24
- Hairyflower Spider Wort; Hairy Flower Spider Wort; Hairyflowered Spider Wort; Hairy Flowered Spider Wort; Hairyflower Spiderwort; Hairy Flower Spiderwort; Hairyflowered Spiderwort; Hairy Flowered Spiderwort Tradescantia hirsutiflora —
- Hairypod Cowpea Vigna luteola 68
- Hairyseed Crowngrass Paspalum pubiflorum —
- Halberd-leaf Rosemallow Hibiscus laevis 78
- Halberd-leaf Tearthumb Polygonum arifolium 75
- Halberd-leaf Yellow Violet Viola hastata 77
- Halesia tetraptera var. monticola Halesia tetraptera var. monticola —
- Hammock Sedge Carex fissa —
- Hammock Sedge Carex fissa var. aristata —
- Harbinger-of-spring Erigenia bulbosa 16
- Harbisons Hawthorn Crataegus harbisonii —
- Hare's-ear Mustard Conringia orientalis —
- Harlequin Glory-bower Clerodendrum trichotomum —
- Harlequin Glorybower; Ferruginous Clerodendrum; Harlequin Glory Bower Clerodendrum trichotomum var. ferrugineum —
- Harper's Beaksedge Rhynchospora harperi 44
- Harper's Fimbry Fimbristylis perpusilla 15
- Harper's Yellow-eyed-grass Xyris scabrifolia 29
- Harperella Ptilimnium nodosum 24
- Harpers Dodder Cuscuta harperi —
- Harpers St. Johns Wort; Harpers St. Johnswort Hypericum harperi —
- Hartwrightia floridana Hartwrightia floridana —
- Harvey's Beaksedge Rhynchospora harveyi 44
- Hazel Alder Alnus serrulata 66
- Heart Leaf Noseburn Tragia cordata —
- Heart Leaf Willow Salix eriocephala —
- Heartleaf Aster Symphyotrichum cordifolium 93
- Heartleaf Climbing Hempweed; Heartleaved Climbing Hempweed; Heart Leaf Climbing Hempweed; Heart Leaved Climbing Hempweed; Heartleaf Climbing Hemp Weed; Heartleaved Climbing Hemp Weed; Heart Leaf Climbing Hemp Weed; Heart Leaved Climbing Hemp Weed Mikania cordifolia —
- Heartleaf Golden-Alexanders Zizia aptera 46
- Heartleaf Ground-cherry Physalis cordata 73
- Heartleaf Hedge-nettle Stachys cordata 56
- Heartleaf Nettle Urtica chamaedryoides 48
- Heartleaf Peppervine Ampelopsis cordata 57
- Heartleaf Plantain Plantago cordata 69
- Heartleaf Skullcap Scutellaria ovata 37
- Heavenly Bamboo Nandina domestica -80
- Heavy Sedge Carex gravida 58
- Hedge Bedstraw Galium mollugo —
- Hedge False Bindweed Calystegia sepium 33
- Hedge Mustard Sisymbrium officinale —
- Hedgehog Woodrush Luzula echinata 13
- Hedychium coronarium Hedychium coronarium —
- Helenium amarum var. amarum Helenium amarum var. amarum —
- Helenium autumnale var. autumnale Helenium autumnale var. autumnale —
- Helianthus agrestis Helianthus agrestis —
- Helianthus debilis subsp. cucumerifolius Helianthus debilis subsp. cucumerifolius —
- Helianthus debilis subsp. tardiflorus Helianthus debilis subsp. tardiflorus —
- Helianthus floridanus Helianthus floridanus —
- Helianthus occidentalis subsp. occidentalis Helianthus occidentalis subsp. occidentalis —
- Helianthus pauciflorus subsp. pauciflorus Helianthus pauciflorus subsp. pauciflorus —
- Helianthus radula Helianthus radula —
- Heliopsis helianthoides var. gracilis Heliopsis helianthoides var. gracilis —
- Heliotropium curassavicum var. curassavicum Heliotropium curassavicum var. curassavicum —
- Heliotropium tenellum Heliotropium tenellum —
- Heller's Rabbit-tobacco Pseudognaphalium helleri 35
- Heller's Witchgrass Dichanthelium oligosanthes 49
- Hemlock Water-parsnip Sium suave 23
- Henbit Dead-nettle Lamium amplexicaule —
- Hepatica nobilis Hepatica nobilis —
- Herb Sophia Descurainia sophia —
- Hercules-club Zanthoxylum clava-herculis 57
- Heterotheca camporum var. glandulissimum Heterotheca camporum var. glandulissimum —
- Heuchera americana var. americana Heuchera americana var. americana —
- Heuchera villosa var. villosa Heuchera villosa var. villosa —
- Hexalectris spicata var. spicata Hexalectris spicata var. spicata —
- Hexastylis arifolia var. arifolia Hexastylis arifolia var. arifolia 19
- Hexastylis arifolia var. callifolia Hexastylis arifolia var. callifolia —
- Hexastylis shuttleworthii var. harperi Hexastylis shuttleworthii var. harperi —
- Hexastylis shuttleworthii var. shuttleworthii Hexastylis shuttleworthii var. shuttleworthii —
- Hibiscus grandiflorus Hibiscus grandiflorus —
- Hieracium megacephalon Hieracium megacephalon —
- Hieracium pilosella var. pilosella Hieracium pilosella var. pilosella —
- Hieracium scabrum var. scabrum Hieracium scabrum var. scabrum —
- Highland Doghobble Leucothoe fontanesiana 25
- Hill Cane Arundinaria appalachiana 45
- Hillsboro Three-awn Aristida purpurascens var. tenuispica 19
- Hillside Blueberry Vaccinium pallidum 98
- Himalayan Blackberry Rubus bifrons —
- Hirst's Witchgrass Dichanthelium hirstii —
- Hirsute Sedge Carex complanata 58
- Hoary Azalea Rhododendron canescens 90
- Hoary Frostweed Helianthemum bicknellii —
- Hoary Mountain Mint Pycnanthemum incanum var. incanum 40
- Hoary Mountain Mint Pycnanthemum incanum var. puberulum —
- Hoary Mountain-mint Pycnanthemum incanum 40
- Hoary Puccoon Lithospermum canescens 43
- Hoary Skullcap Scutellaria incana 37
- Hoary Skullcap Scutellaria incana var. australis 37
- Hoary Skullcap Scutellaria incana var. incana 37
- Hoary Skullcap Scutellaria incana var. punctata 37
- Hoary Tick-trefoil Desmodium canescens 69
- Hoary Vervain Verbena stricta 77
- Hobblebush Viburnum lantanoides 77
- Hog Plum Prunus umbellata 100
- Hogpeanut; American Hogpeanut; Hog Peanut; American Hog Peanut Amphicarpaea bracteata var. bracteata 44
- Hogpeanut; American Hogpeanut; Hog Peanut; American Hog Peanut Amphicarpaea bracteata var. comosa 44
- Hollow Joe-pye-weed Eutrochium fistulosum 85
- Holly Leaf Oregon Grape Mahonia aquifolium —
- Holly-flax Santolina chamaecyparissus —
- Hollyhock Alcea rosea —
- Honey Locust Gleditsia triacanthos 50
- Honeycup Zenobia pulverulenta 10
- Honeyvine Cynanchum laeve 42
- Hooded Arrowhead Sagittaria calycina 58
- Hooded Blue Violet Viola sororia 77
- Hooded Pitcherplant Sarracenia minor 42
- Hooked Buttercup Ranunculus recurvatus 51
- Hooked Buttercup; Recurved Buttercuo Ranunculus recurvatus var. recurvatus —
- Hooker's Milkwort Polygala hookeri —
- Hop Sedge Carex lupulina 58
- Hordeum murinum subsp. leporinum Hordeum murinum subsp. leporinum —
- Horned Bladderwort Utricularia cornuta 22
- Horned Pondweed Zannichellia palustris 12
- Hornleaf Riverweed Podostemum ceratophyllum 8
- Horsetail Crowngrass Paspalum fluitans 66
- Horsetail Spikerush Eleocharis equisetoides 34
- Hound's-tongue Cynoglossum officinale —
- Houstonia purpurea var. purpurea Houstonia purpurea var. purpurea —
- Huger's Carrion-flower Smilax hugeri 68
- Humped Bladderwort Utricularia gibba 22
- Humulus lupulus Humulus lupulus —
- Huperzia appalachiana Huperzia appalachiana —
- Husk Tomato Physalis pubescens var. pubescens —
- Hydrilla Hydrilla verticillata -85
- Hydrocotyle prolifera Hydrocotyle prolifera —
- Hydrocotyle verticillata var. verticillata Hydrocotyle verticillata var. verticillata —
- Hydrolea corymbosa Hydrolea corymbosa —
- Hygrophila lacustris Hygrophila lacustris —
- Hylotelephium spectabile Hylotelephium spectabile —
- Hymenocallis choctawensis Hymenocallis choctawensis —
- Hymenocallis coronaria Hymenocallis coronaria —
- Hymenocallis duvalensis Hymenocallis duvalensis —
- Hymenopappus scabiosaeus Hymenopappus scabiosaeus —
- Hymenopappus scabiosaeus var. scabiosaeus Hymenopappus scabiosaeus var. scabiosaeus —
- Hyophila involuta Hyophila involuta —
- Hypericum brachyphyllum Hypericum brachyphyllum —
- Hypericum buckleii Hypericum buckleii —
- Hypericum hypericoides subsp. hypericoides Hypericum hypericoides subsp. hypericoides —
- Hypericum hypericoides subsp. multicaule Hypericum hypericoides subsp. multicaule —
- Hypericum microsepalum Hypericum microsepalum —
- Hypericum myrtifolium Hypericum myrtifolium —
- Hypericum nitidum Hypericum nitidum —
- Hypericum tetrapetalum Hypericum tetrapetalum —
- Hypochaeris brasiliensis var. tweediei Hypochaeris brasiliensis var. tweediei —
- Hypochaeris microcephala Hypochaeris microcephala —
- Hypochaeris microcephala var. albiflora Hypochaeris microcephala var. albiflora —
- Hyptis mutabilis Hyptis mutabilis —
- Hyssop Skullcap Scutellaria integrifolia 37
- Hyssopleaf Hedge-nettle Stachys hyssopifolia —
- Hyssopleaf Thoroughwort Eupatorium hyssopifolium 83
- Hyssopleaf Thoroughwort; Hyssop Leaf Thoroughwort; Hyssopleaved Thoroughwort; Hyssop Leaved Thoroughwort; Hyssopleaf Thorough Wort; Hyssop Leaf Thorough Wort; Hyssopleaved Thorough Wort; Hyssop Leaved Thorough Wort Eupatorium hyssopifolium var. calcaratum —
- Hyssopleaf Thoroughwort; Hyssop Leaf Thoroughwort; Hyssopleaved Thoroughwort; Hyssop Leaved Thoroughwort; Hyssopleaf Thorough Wort; Hyssop Leaf Thorough Wort; Hyssopleaved Thorough Wort; Hyssop Leaved Thorough Wort Eupatorium hyssopifolium var. hyssopifolium —
I
- Ilex cassine var. cassine Ilex cassine var. cassine —
- Ilex cuthbertii Ilex cuthbertii —
- Ilex opaca var. opaca Ilex opaca var. opaca —
- Ilex rotunda Ilex rotunda —
- Illicium floridanum Illicium floridanum —
- Illicium parviflorum Illicium parviflorum —
- Illinois Bundleflower Desmanthus illinoensis 31
- Illinois Pondweed Potamogeton illinoensis 40
- India Lovegrass Eragrostis pilosa —
- Indian Blanket-flower Gaillardia pulchella —
- Indian Cucumber-root Medeola virginiana 8
- Indian Cupscale Sacciolepis indica —
- Indian Goose-grass Eleusine indica —
- Indian Heliotrope Heliotropium indicum —
- Indian Jointvetch Aeschynomene indica 25
- Indian Pink Spigelia marilandica 8
- Indian Strawberry Duchesnea indica —
- Indian Sweetclover Melilotus indicus —
- Indian-hemp Apocynum cannabinum 58
- Indian-pipe Monotropa uniflora 20
- Indian-tobacco Lobelia inflata 48
- Indigofera decora Indigofera decora —
- Indigofera miniata Indigofera miniata —
- Indigofera suffruticosa Indigofera suffruticosa —
- Inkberry Ilex glabra 95
- Intermediate Mermaid Weed Proserpinaca intermedia —
- Intermediate Wood-fern Dryopteris intermedia 25
- Interrupted Fern Osmunda claytoniana 28
- Ipomoea carnea Ipomoea carnea —
- Ipomoea carnea subsp. fistulosa Ipomoea carnea subsp. fistulosa —
- Ipomoea cordatotriloba var. cordatotriloba Ipomoea cordatotriloba var. cordatotriloba —
- Ipomoea indica Ipomoea indica —
- Ipomoea meyeri Ipomoea meyeri —
- Ipomoea pes-caprae Ipomoea pes-caprae —
- Ipomoea pes-caprae subsp. brasiliensis Ipomoea pes-caprae subsp. brasiliensis —
- Ipomoea wrightii Ipomoea wrightii —
- Iris hexagona Iris hexagona —
- Iris hexagona var. hexagona Iris hexagona var. hexagona —
- Iris verna var. verna Iris verna var. verna —
- Iris virginica var. virginica Iris virginica var. virginica —
- Irisleaf Yellow-eyed-grass Xyris laxifolia var. iridifolia 29
- Isoëtes appalachiana Isoëtes appalachiana —
- Isoëtes boomii Isoëtes boomii —
- Isoëtes butleri Isoëtes butleri —
- Isoëtes engelmannii Isoëtes engelmannii —
- Isoëtes flaccida Isoëtes flaccida —
- Isoëtes flaccida var. alata Isoëtes flaccida var. alata —
- Isoëtes flaccida var. chapmanii Isoëtes flaccida var. chapmanii —
- Isoëtes flaccida var. flaccida Isoëtes flaccida var. flaccida —
- Isoëtes georgiana Isoëtes georgiana —
- Isoëtes hyemalis Isoëtes hyemalis —
- Isoëtes junciformis Isoëtes junciformis —
- Isoëtes melanopoda Isoëtes melanopoda —
- Isoëtes melanospora Isoëtes melanospora —
- Isoëtes piedmontana Isoëtes piedmontana —
- Isoëtes tegetiformans Isoëtes tegetiformans —
- Isoëtes valida Isoëtes valida —
- Isolepis molesta Isolepis molesta —
- Italian Rye Grass Lolium perenne subsp. multiflorum —
- Itch-grass Rottboellia cochinchinensis -15
- Iva annua var. annua Iva annua var. annua —
- Iva annua var. caudata Iva annua var. caudata —
- Iva frutescens subsp. frutescens Iva frutescens subsp. frutescens —
- Iva frutescens subsp. oraria Iva frutescens subsp. oraria —
- Ivyleaf Morning-glory Ipomoea hederacea —
- Ivyleaf Speedwell Veronica hederifolia —
J
- Jack Go To Bed At Noon Tragopogon lamottei —
- Jacobs Ladder; Greek Valerian Polemonium reptans var. reptans 20
- Jagged Chickweed Holosteum umbellatum —
- Jamesianthus alabamensis Jamesianthus alabamensis —
- Japanese Barberry Berberis thunbergii -55
- Japanese Bristlegrass Setaria faberi -30
- Japanese Climbing Fern Lygodium japonicum -55
- Japanese Clover Kummerowia striata -30
- Japanese Holly-fern Cyrtomium falcatum —
- Japanese Honeysuckle Lonicera japonica -85
- Japanese Hops Humulus japonicus —
- Japanese Knotweed Polygonum cuspidatum —
- Japanese Lady Fern Deparia petersenii —
- Japanese Mazus Mazus pumilus —
- Japanese Mock-orange Pittosporum tobira —
- Japanese Privet Ligustrum japonicum -85
- Japanese Spiraea Spiraea japonica -85
- Japanese Stilt-grass Microstegium vimineum -85
- Japanese Virgin's-bower Clematis terniflora -55
- Japanese Wisteria Wisteria floribunda -85
- Jasminum mesnyi Jasminum mesnyi —
- Jersey Cudweed Pseudognaphalium luteoalbum —
- Jerusalem Artichoke Helianthus tuberosus —
- Jerusalem Cherry Solanum pseudocapsicum —
- Jimsonweed Datura stramonium —
- Johnny Jump-up Viola tricolor —
- Johnson Grass Sorghum halepense -55
- Jonquil Narcissus jonquilla —
- Jumpseed Polygonum virginianum 75
- Juncus acutus Juncus acutus —
- Juncus acutus subsp. leopoldii Juncus acutus subsp. leopoldii —
- Juncus brachycephalus Juncus brachycephalus —
- Juncus bufonius var. bufonius Juncus bufonius var. bufonius —
- Juncus effusus var. solutus Juncus effusus var. solutus —
- Juncus elliottii var. elliottii Juncus elliottii var. elliottii —
- Juncus glomeratus Juncus glomeratus —
- Juncus subcaudatus var. subcaudatus Juncus subcaudatus var. subcaudatus —
- Juncus validus var. validus Juncus validus var. validus —
- Jungle-rice Echinochloa colona —
- Juniper-leaf Polypremum procumbens 16
- Juniperus virginiana var. virginiana Juniperus virginiana var. virginiana —
- Justicia angusta Justicia angusta —
- Justicia crassifolia Justicia crassifolia —
- Justicia ovata var. ovata Justicia ovata var. ovata —
K
- Kallstroemia maxima Kallstroemia maxima —
- Kalmia hirsuta Kalmia hirsuta —
- Keeled Bulrush Isolepis carinata 45
- Keever's Onion Allium cuthbertii —
- Kentucky Bluegrass Poa pratensis —
- Kentucky Coffeetree Gymnocladus dioicus 29
- Kentucky Ladys Slipper Cypripedium kentuckiense —
- Kentucky Skullcap Scutellaria elliptica var. hirsuta 37
- Kentucky Yellowwood Cladrastis kentukea 17
- Kidney Leaf Rosinweed Silphium compositum var. compositum 51
- Kidney-shape Sedge Carex reniformis 58
- Kidneyleaf Buttercup Ranunculus abortivus 53
- Kidneyleaf Grass-of-Parnassus Parnassia asarifolia 17
- Kidneyleaf Mud-plantain Heteranthera reniformis 12
- Kidneyleaf Rosinweed Silphium compositum 51
- Kidneyleaf Rosinweed Silphium compositum var. reniforme —
- Kidneyleaf Twayblade Listera smallii 8
- King Ranch Bluestem; Yellow Bluestem Bothriochloa ischaemum —
- Knotgrass Paspalum distichum 66
- Knotted Clover Trifolium striatum —
- Knotted Hedge-parsley Torilis nodosa —
- Korean Clover Kummerowia stipulacea -30
- Krals Sedge Carex kraliana 58
- Krameria lanceolata Krameria lanceolata —
- Kudzu Pueraria montana —
- Kudzu Pueraria montana var. lobata -30
- Kunth's Maiden-fern Thelypteris kunthii —
- Kyllinga brevifolia Kyllinga brevifolia —
- Kyllinga squamulata Kyllinga squamulata —
L
- Lablab purpureus Lablab purpureus —
- Lace Lovegrass Eragrostis capillaris 32
- Lacelip Ladies'-tresses Spiranthes laciniata 22
- Lactuca floridana var. floridana Lactuca floridana var. floridana —
- Lactuca floridana var. villosa Lactuca floridana var. villosa —
- Lactuca hirsuta var. sanguinea Lactuca hirsuta var. sanguinea —
- Ladder Brake Pteris vittata —
- Lady Lupine Lupinus villosus 77
- Lambs Quarters Chenopodium album 51
- Lambs Quarters Chenopodium album var. album —
- Lamium purpureum var. purpureum Lamium purpureum var. purpureum —
- Lance Leaf Trillium Trillium lancifolium —
- Lance Leaf Twisted Stalk Streptopus lanceolatus var. lanceolatus 11
- Lanceleaf Blanket-flower Gaillardia aestivalis 52
- Lanceleaf Bluet Houstonia purpurea var. calycosa —
- Lanceleaf Frogfruit Phyla lanceolata 51
- Lanceleaf Greenbrier Smilax smallii 71
- Lanceleaf Loosestrife Lysimachia lanceolata 58
- Lanceleaf Ragweed Ambrosia bidentata 67
- Lanceleaf Rattlebox Crotalaria lanceolata -30
- Lanceleaf Rose-gentian Sabatia difformis 14
- Lanceleaf Seedbox Ludwigia lanceolata 58
- Lanceleaf Tickseed Coreopsis lanceolata 66
- Lanceleaf Violet Viola lanceolata 77
- Lantana montevidensis Lantana montevidensis —
- Large Beaksedge Rhynchospora macra 44
- Large Flower Coreopsis; Large Flowered Coreopsis; Largeflower Coreopsis; Largeflowered Coreopsis; Large Flower Tick Seed; Large Flowered Tick Seed; Largeflower Tick Seed; Largeflowered Tick Seed; Large Flower Tickseed; Large Flowered Tickseed; Largeflower Tickseed; Largeflowered Tickseed Coreopsis grandiflora var. grandiflora 65
- Large Flower Coreopsis; Large Flowered Coreopsis; Largeflower Coreopsis; Largeflowered Coreopsis; Large Flower Tick Seed; Large Flowered Tick Seed; Largeflower Tick Seed; Largeflowered Tick Seed; Large Flower Tickseed; Large Flowered Tickseed; Largeflower Tickseed; Largeflowered Tickseed Coreopsis grandiflora var. harveyana 65
- Large Flower Skullcap Scutellaria montana —
- Large Gallberry Ilex coriacea 97
- Large Solomons Seal; King Solomons Seal Polygonatum biflorum var. commutatum —
- Large Spotted St. Johnswort Hypericum pseudomaculatum —
- Large Thymeleaf Sandwort Arenaria serpyllifolia —
- Large Whorled Pogonia Isotria verticillata 8
- Large Witch-alder Fothergilla major 22
- Large Yellow Vetch Vicia grandiflora —
- Large-bracted Plantain Plantago aristata 69
- Large-flower Heartleaf Hexastylis shuttleworthii 19
- Large-flowered Bellwort Uvularia grandiflora 22
- Large-flowered Trillium Trillium grandiflorum 25
- Largebract Tick-trefoil Desmodium cuspidatum —
- Largebract Ticktrefoil Desmodium cuspidatum var. longifolium —
- Largeflower Tickseed Coreopsis grandiflora 65
- Largefruit Amaranth Amaranthus deflexus —
- Largefruit Black-snakeroot Sanicula trifoliata 15
- Largeleaf Grass-of-Parnassus Parnassia grandifolia 17
- Largeleaf Marsh-pennywort Hydrocotyle bowlesioides —
- Largeleaf Pennywort Hydrocotyle bonariensis —
- Largeleaf Phlox Phlox amplifolia 52
- Largeleaf Pondweed Potamogeton amplifolius 40
- Largeleaf Waterleaf Hydrophyllum macrophyllum 24
- Largeroot Morning-glory Ipomoea macrorhiza 83
- Largeseed Forget-me-not Myosotis macrosperma 36
- Larkspur-leaf Tickseed Coreopsis delphiniifolia 65
- Late Figwort Scrophularia marilandica 34
- Late Purple Aster Symphyotrichum patens 93
- Late-flowering Thoroughwort Eupatorium serotinum 87
- Laurel Greenbrier Smilax laurifolia 71
- Laurel Oak Quercus laurifolia 88
- Lavender Bladderwort Utricularia resupinata —
- Lavender Moonvine Ipomoea turbinata —
- Lawn Blue Eyed Grass Sisyrinchium rosulatum —
- Lawn Marsh-pennywort Hydrocotyle sibthorpioides —
- Lax Hornpod Mitreola petiolata 13
- Le Conte's Flatsedge Cyperus lecontei 42
- Leafy Bladderwort Utricularia foliosa —
- Leafy Bulrush Scirpus polyphyllus 45
- Leafy Pondweed Potamogeton foliosus 40
- Least Duckweed Lemna minuta 31
- Least Trillium Trillium pusillum 24
- Leatherleaf Mahonia Mahonia bealei -55
- Leathery Rush Juncus coriaceus 41
- Leavenworth's Goldenrod Solidago leavenworthii 90
- Leavenworth's Sedge Carex leavenworthii 58
- Lechea deckertii Lechea deckertii —
- LeConte's Thistle Cirsium lecontei 89
- LeConte's Violet Viola affinis 77
- Leggett's Pinweed Lechea pulchella 22
- Leggetts Pinweed; Southern Hairy Pinweed Lechea pulchella var. pulchella —
- Leitneria floridana Leitneria floridana —
- Lemon Balm Melissa officinalis —
- Lemon Bee Balm Monarda citriodora —
- Lemon Bee Balm Monarda citriodora var. citriodora —
- Lemon-yellow False Golden-aster Heterotheca camporum —
- Lentil Vetch Vicia tetrasperma —
- Leonard's Skullcap Scutellaria parvula var. missouriensis —
- Leonurus cardiaca subsp. cardiaca Leonurus cardiaca subsp. cardiaca —
- Lepidium bonariense Lepidium bonariense —
- Leptochloa fusca subsp. uninervia Leptochloa fusca subsp. uninervia —
- Leptochloa panicea subsp. brachiata Leptochloa panicea subsp. brachiata —
- Lespedeza hirta subsp. curtissii Lespedeza hirta subsp. curtissii —
- Lespedeza hirta subsp. hirta Lespedeza hirta subsp. hirta —
- Lesser Balloon-vine Cardiospermum halicacabum —
- Lesser Burdock Arctium minus —
- Lesser Calamint Calamintha nepeta —
- Lesser Clearweed Pilea fontana —
- Lesser Duckweed Lemna aequinoctialis 31
- Lesser Ladies'-tresses Spiranthes ovalis 22
- Lesser Purple Fringed Orchid Platanthera psycodes 27
- Lesser Quaking-grass Briza minor —
- Lesser Snakeroot Ageratina aromatica 85
- Lesser Snakeroot; Lesser Snake Root Ageratina aromatica var. aromatica —
- Lesser Swine-cress Coronopus didymus —
- Lettuceleaf Saxifrage Saxifraga micranthidifolia —
- Liatris aspera var. intermedia Liatris aspera var. intermedia —
- Liatris chapmanii Liatris chapmanii —
- Liatris elegans Liatris elegans —
- Liatris elegans var. elegans Liatris elegans var. elegans —
- Liatris elegans var. kralii Liatris elegans var. kralii —
- Liatris gracilis Liatris gracilis —
- Liatris patens Liatris patens —
- Liatris pauciflora Liatris pauciflora —
- Liatris scariosa var. scariosa Liatris scariosa var. scariosa —
- Liatris spicata var. resinosa Liatris spicata var. resinosa —
- Liatris spicata var. spicata Liatris spicata var. spicata 52
- Liatris squarrosa var. hirsuta Liatris squarrosa var. hirsuta —
- Liatris tenuifolia Liatris tenuifolia —
- Liatris tenuifolia var. quadriflora Liatris tenuifolia var. quadriflora —
- Liatris tenuifolia var. tenuifolia Liatris tenuifolia var. tenuifolia —
- Licania michauxii Licania michauxii —
- Licorice Bedstraw Galium circaezans 55
- Lilium canadense subsp. canadense Lilium canadense subsp. canadense —
- Lilium canadense subsp. editorum Lilium canadense subsp. editorum —
- Lilium catesbaei Lilium catesbaei —
- Lilium catesbaei subsp. catesbaei Lilium catesbaei subsp. catesbaei —
- Lily-of-the-valley-vine Salpichroa origanifolia —
- Limber Honeysuckle Lonicera dioica 72
- Limerock Arrow Wood Viburnum bracteatum —
- Limestone Adders Tongue Ophioglossum engelmannii 8
- Limestone Carolina Lark Spur Delphinium carolinianum —
- Limestone Forest Sedge Carex superata 58
- Limestone Meadow Sedge Carex granularis 58
- Limnophila sessiliflora Limnophila sessiliflora -30
- Lindera benzoin var. benzoin Lindera benzoin var. benzoin —
- Lindernia grandiflora Lindernia grandiflora —
- Lindheimers Witch Grass Dichanthelium acuminatum var. lindheimeri 49
- Lindley's Butterfly-bush Buddleja lindleyana —
- Lined Sedge Carex striatula 58
- Linum floridanum var. chrysocarpum Linum floridanum var. chrysocarpum —
- Linum medium var. texanum Linum medium var. texanum —
- Linum sulcatum var. harperi Linum sulcatum var. harperi —
- Linum sulcatum var. sulcatum Linum sulcatum var. sulcatum —
- Lion's-foot Rattlesnake-root Prenanthes serpentaria —
- Lithospermum caroliniense var. caroliniense Lithospermum caroliniense var. caroliniense —
- Litteleaf Milkwort Polygala brevifolia —
- Little Barley Hordeum pusillum 45
- Little Bluestem Schizachyrium scoparium 54
- Little Bluestem Schizachyrium scoparium var. scoparium —
- Little Brown Jug Hexastylis arifolia 20
- Little Duckweed Lemna obscura 31
- Little Floating-heart Nymphoides cordata 21
- Little Flower Alumroot; Cumberland Grotto Alumroot Heuchera parviflora var. parviflora 25
- Little Ladies'-tresses Spiranthes tuberosa 22
- Little Lovegrass Eragrostis minor —
- Little River Water Plantain Sagittaria secundifolia —
- Little Sweet Trillium Trillium cuneatum 24
- Littleflower Alumroot Heuchera parviflora 25
- Littlehead Nutrush Scleria oligantha 12
- Littlehip Hawthorn Crataegus spathulata 83
- Littleleaf Milkpea Galactia microphylla 73
- Littleleaf Sensitive-briar Mimosa microphylla 65
- Littleseed False-flax Camelina microcarpa —
- Live Oak Quercus virginiana 88
- Lizard's-tail Saururus cernuus 25
- Lloyd's St. John's-wort Hypericum lloydii 68
- Lobed Barren-strawberry Waldsteinia lobata 20
- Lobed Spleenwort Asplenium pinnatifidum 15
- Lobed Tickseed Coreopsis auriculata 65
- Lobelia amoena var. glandulifera Lobelia amoena var. glandulifera —
- Lobelia flaccidifolia Lobelia flaccidifolia —
- Lobelia floridana Lobelia floridana —
- Lobelia paludosa Lobelia paludosa —
- Lobelia siphilitica var. siphilitica Lobelia siphilitica var. siphilitica —
- Loblolly Bay Gordonia lasianthus 49
- Loblolly Pine Pinus taeda 75
- Log Fern Dryopteris celsa 25
- Lolium perenne subsp. perenne Lolium perenne subsp. perenne —
- Lolium temulentum subsp. temulentum Lolium temulentum subsp. temulentum —
- Lombardy Poplar Populus nigra —
- Long Beach Seedbox Ludwigia brevipes —
- Long Fringed Sedge Carex crinita var. crinita 58
- Long Leaf Ground Cherry Physalis longifolia var. longifolia —
- Long Leaf Ground Cherry Physalis longifolia var. subglabrata 73
- Long Leaf Panic Grass; Redtop Panic Grass Panicum rigidulum var. pubescens —
- Long Stalk Aster Symphyotrichum dumosum var. dumosum 93
- Long-sepal Beardtongue Penstemon calycosus 73
- Long-spurred Violet Viola rostrata 77
- Long-stem Adder's-tongue Ophioglossum petiolatum —
- Long's Rush Juncus longii 41
- Longbeak Arrowhead Sagittaria australis 58
- Longbeak Beaksedge Rhynchospora scirpoides 44
- Longleaf Bluet Houstonia longifolia 35
- Longleaf Ground-cherry Physalis longifolia 73
- Longleaf Lobelia Lobelia elongata 48
- Longleaf Milkweed Asclepias longifolia 67
- Longleaf Pine Pinus palustris 75
- Longleaf Pondweed Potamogeton nodosus 40
- Longleaf Spikegrass Chasmanthium sessiliflorum 36
- Longleaf Sunflower Helianthus longifolius —
- Longleaf Three-awn Aristida palustris 19
- Longleaf Wedgescale Sphenopholis filiformis 8
- Longs Sedge Carex longii 58
- Longspike Fluffgrass Tridens strictus 32
- Longspine Sandbur Cenchrus longispinus 49
- Longstalk Crane's-bill Geranium columbinum —
- Longstalk False-pimpernel Lindernia dubia var. anagallidea 23
- Longstalk Sedge Carex pedunculata 59
- Longstyle Sweet-cicely Osmorhiza longistylis 24
- Lookout Mountain Coreopsis Coreopsis pulchra —
- Loomis's Loosestrife Lysimachia loomisii —
- Loomiss Mountain Mint Pycnanthemum loomisii 40
- Loose Flower Water Willow Justicia lanceolata —
- Loose Water-milfoil Myriophyllum laxum 36
- Looseflower Water-willow Justicia ovata 45
- Loosehead Beaksedge Rhynchospora chalarocephala 44
- Lopsided Rush Juncus secundus 41
- Lotus corniculatus var. corniculatus Lotus corniculatus var. corniculatus —
- Lotus unifoliolatus Lotus unifoliolatus —
- Louisiana Sedge Carex louisianica 58
- Louisiana Unicorn-plant Proboscidea louisianica —
- Low False Bindweed Calystegia spithamaea 32
- Low Hop Clover Trifolium campestre —
- Low Nutrush Scleria verticillata 12
- Low Pinebarren Milkwort Polygala ramosa —
- Low Rattlebox Crotalaria rotundifolia 58
- Low Spearwort Ranunculus pusillus 51
- Low Spikesedge Kyllinga pumila 15
- Low Stiff Witchgrass; Addisons Rosette Grass; Low Stiff Witch Grass; Addisons Rosettegrass Dichanthelium ovale var. addisonii 49
- Low Woodland Sedge Carex socialis 58
- Lowland Bladder Fern Cystopteris protrusa 8
- Lowland Loosestrife Lysimachia hybrida —
- Lowland Rotala Rotala ramosior 15
- Ludwigia arcuata Ludwigia arcuata —
- Ludwigia glandulosa subsp. glandulosa Ludwigia glandulosa subsp. glandulosa —
- Ludwigia grandiflora Ludwigia grandiflora —
- Ludwigia grandiflora subsp. grandiflora Ludwigia grandiflora subsp. grandiflora —
- Ludwigia grandiflora subsp. hexapetala Ludwigia grandiflora subsp. hexapetala —
- Ludwigia octovalvis subsp. octovalvis Ludwigia octovalvis subsp. octovalvis —
- Ludwigia peploides subsp. glabrescens Ludwigia peploides subsp. glabrescens —
- Ludwigia peruviana Ludwigia peruviana —
- Ludwigia spathulata Ludwigia spathulata —
- Lupine Scurfpea Orbexilum lupinellum —
- Lupinus angustifolius Lupinus angustifolius —
- Lupinus perennis subsp. gracilis Lupinus perennis subsp. gracilis —
- Lupinus perennis subsp. perennis Lupinus perennis subsp. perennis —
- Luzula acuminata subsp. carolinae Luzula acuminata subsp. carolinae —
- Lycium carolinianum Lycium carolinianum —
- Lycium carolinianum var. carolinianum Lycium carolinianum var. carolinianum —
- Lycopodiella caroliniana Lycopodiella caroliniana —
- Lycopodiella caroliniana var. caroliniana Lycopodiella caroliniana var. caroliniana —
- Lycopodiella cernua Lycopodiella cernua —
- Lycopodiella cernua var. cernua Lycopodiella cernua var. cernua —
- Lycopus uniflorus var. uniflorus Lycopus uniflorus var. uniflorus —
- Lygodesmia aphylla Lygodesmia aphylla —
- Lyonia ferruginea Lyonia ferruginea —
- Lyonia fruticosa Lyonia fruticosa —
- Lyreleaf Rockcress Arabis lyrata 25
- Lyreleaf Sage Salvia lyrata 55
- Lysimachia barystachys Lysimachia barystachys —
- Lysimachia quadriflora Lysimachia quadriflora —
- Lythrum alatum var. alatum Lythrum alatum var. alatum —
- Lythrum curtissii Lythrum curtissii —
M
- Macfadyena unguis-cati Macfadyena unguis-cati —
- Macranthera flammea Macranthera flammea —
- Macroptilium lathyroides Macroptilium lathyroides —
- Mad-dog Skullcap Scutellaria lateriflora 37
- Madagascar Periwinkle Catharanthus roseus —
- Maianthemum racemosum subsp. racemosum Maianthemum racemosum subsp. racemosum —
- Maidencane Panicum hemitomon —
- Maidenhair Spleenwort Asplenium trichomanes 15
- Malabar Sprangletop Leptochloa fusca —
- Malaysian False-pimpernel Lindernia crustacea —
- Maleberry Lyonia ligustrina 73
- Malus angustifolia var. angustifolia Malus angustifolia var. angustifolia —
- Malva parviflora Malva parviflora —
- Malvaviscus arboreus Malvaviscus arboreus —
- Malvaviscus arboreus var. drummondii Malvaviscus arboreus var. drummondii —
- Manhart's Sedge Carex manhartii 58
- Manihot grahamii Manihot grahamii —
- Manilla Temple Grass Zoysia matrella —
- Many-flowered Grass-pink Calopogon multiflorus 12
- Many-flowered Witchgrass Dichanthelium sphaerocarpon var. isophyllum 49
- Many-spike Flatsedge Cyperus polystachyos 42
- Manyflower Flatsedge Cyperus lancastriensis 42
- Manyflower Marsh-pennywort Hydrocotyle umbellata 45
- Mapleleaf Viburnum Viburnum acerifolium 77
- Marginal Wood-fern Dryopteris marginalis 25
- Marijuana Cannabis sativa —
- Marine-ivy Cissus trifoliata —
- Maritime Bluestem Andropogon glomeratus var. pumilus 54
- Maritime Pokeweed Phytolacca americana var. rigida 66
- Maroon Carolina Milkvine Matelea carolinensis 19
- Marsh Bellflower Campanula aparinoides —
- Marsh Blue Violet Viola cucullata 79
- Marsh Bristlegrass Setaria parviflora 43
- Marsh Dewflower Murdannia keisak -85
- Marsh Eryngo Eryngium aquaticum 48
- Marsh Fern Thelypteris palustris 35
- Marsh Flatsedge Cyperus pseudovegetus 42
- Marsh Ladies'-tresses Spiranthes odorata 22
- Marsh Mermaid-weed Proserpinaca palustris 8
- Marsh Mermaidweed Proserpinaca palustris var. amblyogona —
- Marsh Mermaidweed; Southern Mermaid Weed Proserpinaca palustris var. palustris 8
- Marsh Parsley Cyclospermum leptophyllum —
- Marsh Pea Lathyrus palustris 70
- Marsh Rose-gentian Sabatia dodecandra 14
- Marsh Seedbox Ludwigia palustris 58
- Marshallia graminifolia var. cynanthera Marshallia graminifolia var. cynanthera —
- Marshallia graminifolia var. graminifolia Marshallia graminifolia var. graminifolia —
- Marshallia obovata var. scaposa Marshallia obovata var. scaposa —
- Marshallia ramosa Marshallia ramosa —
- Marshpepper Smartweed Polygonum hydropiper —
- Marsilea mutica Marsilea mutica —
- Marvel-of-Peru Mirabilis jalapa —
- Maryland Black-snakeroot Sanicula marilandica 17
- Maryland Butterfly-pea Clitoria mariana 40
- Maryland Golden-aster Chrysopsis mariana 74
- Maryland Hawkweed Hieracium marianum 35
- Maryland Meadow Beauty; Pale Meadow Beauty Rhexia mariana var. mariana 43
- Maryland Meadow-beauty Rhexia mariana 43
- Maryland Milkwort Polygala mariana —
- Maryland Senna Senna marilandica 67
- Mascarene Island Leaf-flower Phyllanthus tenellus —
- Mat Chaff-flower Alternanthera caracasana —
- Matelea alabamensis Matelea alabamensis —
- Matelea baldwyniana Matelea baldwyniana —
- Matelea flavidula Matelea flavidula —
- Matelea gonocarpos Matelea gonocarpos —
- Matelea pubiflora Matelea pubiflora —
- Matrimony Vine Lycium barbarum —
- Matted Sandmat Chamaesyce serpens —
- Matting Witch Grass Dichanthelium meridionale 49
- Matweed Amaranth Amaranthus blitoides —
- May Hawthorn Crataegus aestivalis 83
- Mayaca fluviatilis Mayaca fluviatilis 8
- Mayapple Podophyllum peltatum 25
- Maypops Passiflora incarnata 56
- McCartney Rose Rosa bracteata —
- McCree's Milkpea Galactia volubilis 74
- Mead's Sedge Carex meadii 58
- Meadow Fescue Schedonorus pratensis —
- Meadow Foxtail Alopecurus pratensis —
- Meadow Garlic Allium canadense 67
- Meadow Hawkweed Hieracium caespitosum —
- Meadow Phlox Phlox maculata 52
- Meadow Spikemoss Selaginella apoda 18
- Mecardonia acuminata var. microphylla Mecardonia acuminata var. microphylla —
- Medicago sativa subsp. sativa Medicago sativa subsp. sativa —
- Melinis repens Melinis repens -30
- Melochia spicata Melochia spicata —
- Melothria pendula var. crassifolia Melothria pendula var. crassifolia —
- Melothria pendula var. pendula Melothria pendula var. pendula —
- Memorial Rose Rosa wichuraiana —
- Menges Fameflower Phemeranthus mengesii —
- Mercury Spurge Euphorbia mercurialina 65
- Mexican Fireplant Euphorbia heterophylla —
- Mexican Plum Prunus mexicana 100
- Mexican Prickly-poppy Argemone mexicana —
- Mexican Primrose-willow Ludwigia octovalvis 58
- Mexican-tea Dysphania ambrosioides 51
- Miami-mist Phacelia purshii 48
- Michaux's Milkweed Asclepias michauxii 67
- Michaux's Saxifrage Saxifraga michauxii 24
- Michaux's Sumac Rhus michauxii 81
- Michauxs Glade Cress Leavenworthia uniflora —
- Michigan Lily Lilium michiganense —
- Midland Sedge Carex mesochorea 58
- Midwestern Hops Humulus lupulus var. pubescens —
- Millet Beaksedge Rhynchospora miliacea 44
- Mimosa Albizia julibrissin -85
- Mimosa quadrivalvis Mimosa quadrivalvis —
- Mimosa quadrivalvis var. floridana Mimosa quadrivalvis var. floridana —
- Mimosa strigillosa Mimosa strigillosa —
- Miner's-lettuce Claytonia perfoliata —
- Mingled Beakrush Rhynchospora mixta 44
- Minniebush Menziesia pilosa —
- Minuartia patula Minuartia patula —
- Minute Duckweed Lemna perpusilla 31
- Mississippi Buttercup Ranunculus laxicaulis 51
- Missouri Lambs Quarters Chenopodium album var. missouriense —
- Missouri Violet Viola missouriensis —
- Mitchell's Sedge Carex mitchelliana 58
- Mitracarpus hirtus Mitracarpus hirtus —
- Mobile Onion Allium canadense var. mobilense —
- Mock Bishopweed Ptilimnium capillaceum 24
- Mockernut Hickory Carya tomentosa 74
- Mohr's Bluestem Andropogon mohrii 54
- Mohr's Thoroughwort Eupatorium mohrii 83
- Mohrs Rosinweed Silphium mohrii —
- Monarda citriodora subsp. citriodora Monarda citriodora subsp. citriodora —
- Monarda fistulosa subsp. fistulosa Monarda fistulosa subsp. fistulosa —
- Monarda punctata subsp. punctata Monarda punctata subsp. punctata —
- Monarda punctata var. arkansana Monarda punctata var. arkansana —
- Moneywort Lysimachia nummularia —
- Monotropa hypopithys Monotropa hypopithys —
- Morella inodora Morella inodora —
- Morella rubra Morella rubra —
- Morus rubra var. rubra Morus rubra var. rubra —
- Mosla Mosla dianthera -30
- Mosquito Beaksedge Rhynchospora crinipes 44
- Moss Phlox Phlox subulata 52
- Moth Mullein Verbascum blattaria —
- Mother Of Thyme; Motherofthyme Thymus praecox —
- Mottled Trillium; Spotted Trillium Trillium maculatum —
- Mound-lily Yucca Yucca gloriosa 59
- Mountain Andromeda Pieris floribunda 48
- Mountain Bellwort Uvularia puberula 22
- Mountain Bugbane Actaea podocarpa 30
- Mountain Camellia Stewartia ovata 29
- Mountain Dwarf-dandelion Krigia montana 25
- Mountain Golden-Alexanders Zizia trifoliata 46
- Mountain Highbush Blueberry Vaccinium simulatum 98
- Mountain Holly Ilex montana 97
- Mountain Indigo-bush Amorpha glabra 77
- Mountain Laurel Kalmia latifolia 81
- Mountain Maple Acer spicatum 85
- Mountain Meadow-rue Thalictrum clavatum 47
- Mountain Nailwort Paronychia montana —
- Mountain Silverbell Halesia carolina 57
- Mountain Silverbell Halesia tetraptera —
- Mountain Spleenwort Asplenium montanum 15
- Mountain Sweet-pepperbush Clethra acuminata 57
- Mountain Wood-aster Eurybia chlorolepis 65
- Mountain Woodsorrel Oxalis montana 57
- Mourning Love Grass Eragrostis lugens 32
- Mouse Barley Hordeum murinum —
- Mouse-ear Cress Arabidopsis thaliana —
- Mouse-ear Hawkweed Hieracium pilosella —
- Muck Sunflower Helianthus simulans —
- Mucronate Sprangletop Leptochloa panicea subsp. mucronata —
- Mudbank Crowngrass Paspalum dissectum 66
- Muehlenberg's Nutrush Scleria muehlenbergii 12
- Muehlenberg's Sedge Carex muehlenbergii 58
- Mugwort Artemisia vulgaris -30
- Muhlenbergs Sedge Carex muehlenbergii var. enervis 58
- Muhlenbergs Sedge Carex muehlenbergii var. muehlenbergii 58
- Mulberry-weed Fatoua villosa -30
- Multiflora Rose Rosa multiflora -85
- Muscadine Vitis rotundifolia 74
- Musk Thistle Carduus nutans -15
- Muster John Henry Tagetes minuta —
- Myriophyllum verticillatum Myriophyllum verticillatum —
- Myrtle Holly Ilex myrtifolia 98
N
- Najas filifolia Najas filifolia —
- Najas guadalupensis subsp. floridana Najas guadalupensis subsp. floridana —
- Najas guadalupensis subsp. guadalupensis Najas guadalupensis subsp. guadalupensis —
- Naked Tick-trefoil Desmodium nudiflorum 69
- Naked-stem Dewflower Murdannia nudiflora —
- Nannyberry; Sheepberry; Nanny Berry; Sheep Berry Viburnum lentago —
- Narrow Fruit Cornsalad Valerianella dentata —
- Narrow Pipewort; Narrow Pipe Wort Eriocaulon lineare —
- Narrow Plumegrass Saccharum baldwinii 40
- Narrow-fruit Horned Beaksedge Rhynchospora inundata 44
- Narrowleaf Blue-eyed-grass Sisyrinchium angustifolium 17
- Narrowleaf Bluecurls Trichostema setaceum 31
- Narrowleaf Bluestem Andropogon gyrans var. stenophyllus 54
- Narrowleaf Cow-wheat Melampyrum lineare 8
- Narrowleaf Lespedeza Lespedeza angustifolia 70
- Narrowleaf Meadowsweet Spiraea alba 70
- Narrowleaf Obedient Plant; Narrowleaved Obedient Plant; Narrow Leaf Obedient Plant; Narrow Leaved Obedient Plant; Narrowleaf Obedientplant; Narrowleaved Obedientplant; Narrow Leaf Obedientplant; Narrow Leaved Obedientplant; Narrowleaved Dragonhead; Narrow Leaved Dragonhead; Narrow Leaf Dragonhead; Narrowleaf Dragonhead; Narrowleaved Dragon Head; Narrow Leaved Dragon Head; Narrow Leaf Dragon Head; Narrowleaf Dragon Head Physostegia angustifolia —
- Narrowleaf Paleseed Leucospora multifida 8
- Narrowleaf Pinweed Lechea tenuifolia 22
- Narrowleaf Rose-pink Sabatia brachiata 14
- Narrowleaf Rushfoil Croton michauxii 75
- Narrowleaf Seedbox Ludwigia linearis 58
- Narrowleaf Showy Goldenrod Solidago speciosa var. rigidiuscula —
- Narrowleaf Silkgrass Pityopsis graminifolia 74
- Narrowleaf Sundrops Oenothera fruticosa 84
- Narrowleaf Sunflower Helianthus angustifolius 96
- Narrowleaf Vervain Verbena simplex 77
- Narrowleaf Whitetop Aster Sericocarpus linifolius 48
- Nash's Meadow-beauty Rhexia nashii 43
- Nashs Blue Eyed Grass Sisyrinchium nashii 16
- Nashville Breadroot Pediomelum subacaule —
- Necklace Sedge Carex projecta 58
- Needle Blue-eyed-grass Sisyrinchium capillare 16
- Needle Spikerush Eleocharis acicularis 34
- Needleleaf Witchgrass Dichanthelium aciculare 49
- Needlepod Rush Juncus scirpoides 41
- Needletip Blue-eyed-grass Sisyrinchium mucronatum 16
- Neobeckia aquatica Neobeckia aquatica —
- Nephrolepis cordifolia Nephrolepis cordifolia —
- Nestronia Nestronia umbellula 10
- Net Leaf Leather Flower Clematis reticulata —
- Netted Chain-fern Woodwardia areolata 25
- Netted Nutrush Scleria reticularis 12
- Nettleleaf Goosefoot Chenopodium murale —
- Nettleleaf Noseburn Tragia urticifolia 12
- Nettleleaf Sage Salvia urticifolia 55
- Nevius Stonecrop Sedum nevii 52
- New England Aster Symphyotrichum novae-angliae 93
- New England Bulrush Schoenoplectus novae-angliae —
- New Jersey Muhly Muhlenbergia torreyana 27
- New Jersey Tea Ceanothus americanus 93
- New York Fern Thelypteris noveboracensis 35
- New York Ironweed Vernonia noveboracensis 75
- Nicotiana glauca Nicotiana glauca —
- Nicotiana longiflora Nicotiana longiflora —
- Nierembergia scoparia Nierembergia scoparia —
- Night-flowering Catchfly Silene noctiflora —
- Nimblewill Muhlenbergia schreberi 27
- Nodding Beaksedge Rhynchospora inexpansa 44
- Nodding Beggarticks Bidens cernua 87
- Nodding Chickweed Cerastium nutans 45
- Nodding Evening Primrose Oenothera nutans 81
- Nodding Fescue Festuca subverticillata 36
- Nodding Ladies'-tresses Spiranthes cernua 22
- Nodding Onion Allium cernuum 67
- Nodding Sedge Carex gynandra 58
- Nodding Spurge Chamaesyce nutans 65
- Nolina georgiana Nolina georgiana —
- Northeastern Hops Humulus lupulus var. lupuloides —
- Northern Barren-strawberry Waldsteinia fragarioides 20
- Northern Blazing-star Liatris scariosa —
- Northern Bluethread Burmannia biflora 8
- Northern Bugleweed Lycopus uniflorus 30
- Northern Bush-honeysuckle Diervilla lonicera 36
- Northern Catalpa Catalpa speciosa 56
- Northern Dewberry Rubus flagellaris 95
- Northern Green-and-gold Chrysogonum virginianum 13
- Northern Highbush Blueberry Vaccinium corymbosum 98
- Northern Long Sedge Carex folliculata 58
- Northern Maidenhair Fern Adiantum pedatum 15
- Northern Maleberry Lyonia ligustrina var. ligustrina 73
- Northern Red Oak Quercus rubra 88
- Northern Roughleaf Goldenrod Solidago patula 90
- Northern Shorthusk Brachyelytrum aristosum 15
- Northern Six Weeks Fescue Vulpia octoflora var. glauca 12
- Northern Spicebush Lindera benzoin 65
- Northern Spider-lily Hymenocallis occidentalis —
- Northern Toothache Tree Zanthoxylum americanum 57
- Northern Wand Goldenrod Solidago stricta 90
- Northern Winged Loose Strife Lythrum alatum 59
- Northern Witchgrass; Northern Witch Grass Dichanthelium boreale —
- Nothoscordum borbonicum Nothoscordum borbonicum —
- Nottoway Valley Brome Bromus nottowayanus 45
- Noyau Vine Merremia dissecta —
- Nuphar lutea Nuphar lutea —
- Nuphar lutea subsp. advena Nuphar lutea subsp. advena —
- Nuphar lutea subsp. orbiculata Nuphar lutea subsp. orbiculata —
- Nutmeg Hickory Carya myristiciformis —
- Nuttall's Lobelia Lobelia nuttallii 48
- Nuttall's Milkwort Polygala nuttallii —
- Nuttall's Thistle Cirsium nuttallii 89
- Nuttall's Tick-trefoil Desmodium nuttallii 69
- Nuttallanthus floridanus Nuttallanthus floridanus —
- Nuttallanthus texanus Nuttallanthus texanus —
- Nymphaea odorata subsp. odorata Nymphaea odorata subsp. odorata —
- Nyssa ogeche Nyssa ogeche —
O
- Oakleaf Fleabane Erigeron quercifolius 87
- Oakleaf Hydrangea Hydrangea quercifolia 55
- Oat Grass Arrhenatherum elatius var. bulbosum —
- Oat Grass Arrhenatherum elatius var. elatius —
- Obedient-plant Physostegia virginiana 27
- Oblong-fruit Pinweed Lechea racemulosa 22
- Oclemena reticulata Oclemena reticulata —
- Oenothera curtissii Oenothera curtissii —
- Oenothera fruticosa subsp. fruticosa Oenothera fruticosa subsp. fruticosa —
- Oenothera fruticosa subsp. glauca Oenothera fruticosa subsp. glauca —
- Oenothera villosa subsp. villosa Oenothera villosa subsp. villosa —
- Oglethorpe Oak Quercus oglethorpensis —
- Ohio Buckeye Aesculus glabra —
- Ohio Buckeye Aesculus glabra var. glabra —
- Ohio Spiderwort Tradescantia ohiensis 56
- Oklahoma Grass Pink Calopogon oklahomensis —
- Old Fashioned Weigela; Oldfashioned Weigela Weigela florida —
- Old Field Aster Symphyotrichum pilosum var. pilosum 93
- Old World Diamond-flower Oldenlandia corymbosa —
- Old-witch Panicgrass Panicum capillare 49
- Oligoneuron rigidum Oligoneuron rigidum —
- Olney's Threesquare Schoenoplectus americanus —
- One-flower Honeycomb-head Balduina uniflora 48
- One-flower Sandwort Minuartia uniflora —
- One-flowered Cancer-root Orobanche uniflora 17
- One-flowered Hawthorn Crataegus uniflora 83
- One-row Yellowcress Nasturtium microphyllum —
- One-seed Bur-cucumber Sicyos angulatus 15
- Oneflower Bedstraw Galium uniflorum 55
- Onosmodium bejariense Onosmodium bejariense —
- Onosmodium bejariense var. occidentale Onosmodium bejariense var. occidentale —
- Open-flower Witchgrass Dichanthelium laxiflorum 49
- Ophioglossum crotalophoroides var. crotalophoroides Ophioglossum crotalophoroides var. crotalophoroides —
- Oplismenus hirtellus Oplismenus hirtellus —
- Oplismenus hirtellus subsp. setarius Oplismenus hirtellus subsp. setarius —
- Opposite-leaf Dwarf-dandelion Krigia caespitosa 25
- Opuntia pusilla Opuntia pusilla —
- Opuntia stricta Opuntia stricta 73
- Opuntia turbinata Opuntia turbinata —
- Orange Coneflower Rudbeckia fulgida 75
- Orange Cosmos Cosmos sulphureus —
- Orange Day-lily Hemerocallis fulva -30
- Orange Dwarf Dandelion; Two Flower Dwarf Dandelion Krigia biflora var. biflora —
- Orange Hawkweed Hieracium aurantiacum —
- Orange Milkwort Polygala lutea —
- Orange Mullein Verbascum phlomoides —
- Orange-eye Butterfly-bush Buddleja davidii -55
- Orangefruit Horse Gentian; Orangefruited Horse Gentian; Orange Fruit Horse Gentian; Orange Fruited Horse Gentian; Orangefruit Horsegentian; Orangefruited Horsegentian; Orange Fruit Horsegentian; Orange Fruited Horsegentian Triosteum aurantiacum var. aurantiacum 21
- Orangefruit Horse-gentian Triosteum aurantiacum 21
- Orbexilum pedunculatum var. pedunculatum Orbexilum pedunculatum var. pedunculatum —
- Orbexilum pedunculatum var. psoralioides Orbexilum pedunculatum var. psoralioides —
- Orbexilum virgatum Orbexilum virgatum —
- Orchard Grass Dactylis glomerata —
- Oriental Bittersweet Celastrus orbiculatus —
- Oriental False Hawksbeard Youngia japonica —
- Oriental Lady's-thumb Polygonum cespitosum -55
- Osage-orange Maclura pomifera 36
- Osmanthus americanus var. americanus Osmanthus americanus var. americanus —
- Osmunda cinnamomea var. glandulosa Osmunda cinnamomea var. glandulosa —
- Osmunda regalis var. spectabilis Osmunda regalis var. spectabilis —
- Oval Flowered Witchgrass; Ovalflowered Witchgrass; Oval Flower Witchgrass; Ovalflower Witchgrass; Eggleaf Rosettegrass; Egg Leaf Rosettegrass; Eggleaved Rosettegrass; Egg Leaved Rosettegrass; Oval Flowered Witch Grass; Ovalflowered Witch Grass; Oval Flower Witch Grass; Ovalflower Witch Grass; Eggleaf Rosette Grass; Egg Leaf Rosette Grass; Eggleaved Rosette Grass; Egg Leaved Rosette Grass Dichanthelium ovale var. ovale 49
- Oval Ladies Tresses Spiranthes ovalis var. erostellata 22
- Oval-leaf Sedge Carex cephalophora 58
- Ovate Leaf False Fiddleleaf Hydrolea ovata —
- Ovateleaf Flatsedge Cyperus ovatus —
- Overcup Oak Quercus lyrata 88
- Oxalis debilis var. corymbosa Oxalis debilis var. corymbosa —
- Oxalis priceae subsp. colorea Oxalis priceae subsp. colorea —
- Oxalis priceae subsp. priceae Oxalis priceae subsp. priceae —
- Oxalis priceae subsp. texana Oxalis priceae subsp. texana —
- Oxalis rubra Oxalis rubra —
- Oxeye Daisy Leucanthemum vulgare -30
- Oxycaryum cubense Oxycaryum cubense —
- Ozark Bunchflower Veratrum woodii 27
- Ozark Crownbeard Verbesina helianthoides 83
- Ozark Dropseed Sporobolus vaginiflorus var. ozarkanus —
- Ozark Mock Orange Philadelphus pubescens —
P
- Pagoda Beaksedge Rhynchospora compressa 44
- Pagoda Dog Wood Cornus alternifolia 95
- Painted Buckeye Aesculus sylvatica 71
- Painted Sedge Carex picta —
- Painted Trillium Trillium undulatum —
- Palafoxia integrifolia Palafoxia integrifolia —
- Pale Beardtongue Penstemon pallidus 73
- Pale Blue Eyed Grass Sisyrinchium langloisii —
- Pale Dock Rumex altissimus 52
- Pale False Mannagrass Torreyochloa pallida 33
- Pale Grass-pink Calopogon pallidus 12
- Pale Indian-plantain Arnoglossum atriplicifolium 47
- Pale Jewelweed Impatiens pallida 67
- Pale Purple Coneflower Echinacea pallida 47
- Pale Smartweed Polygonum lapathifolium 78
- Pale Spike Rush Eleocharis olivacea var. olivacea —
- Pale Spike Rush; Olive Spike Rush Eleocharis olivacea 34
- Pale Wild Bergamot; Pale Wild Bee Balm Monarda fistulosa var. mollis 70
- Pale Yellow Trillium Trillium discolor 25
- Paleleaf Sunflower Helianthus strumosus 98
- Palespike Lobelia Lobelia spicata 49
- Palespike Lobelia Lobelia spicata var. leptostachys 48
- Palespike Lobelia Lobelia spicata var. spicata 48
- Palmer's Amaranth Amaranthus palmeri —
- Pampas Grass Cortaderia selloana —
- Panicled Fameflower Talinum paniculatum 15
- Panicled Tick Trefoil Desmodium paniculatum var. paniculatum 69
- Panicled Tick-trefoil Desmodium paniculatum 69
- Panicum amarum var. amarulum Panicum amarum var. amarulum —
- Panicum amarum var. amarum Panicum amarum var. amarum —
- Panicum bergii Panicum bergii —
- Panicum bisulcatum Panicum bisulcatum —
- Panicum gattingeri Panicum gattingeri —
- Panicum miliaceum subsp. miliaceum Panicum miliaceum subsp. miliaceum —
- Panicum rigidulum var. combsii Panicum rigidulum var. combsii —
- Panicum tenerum Panicum tenerum —
- Panicum virgatum var. virgatum Panicum virgatum var. virgatum 49
- Paper Mulberry Broussonetia papyrifera -55
- Paraguayan Purslane Portulaca amilis —
- Paraguayan Starbur Acanthospermum australe —
- Parasol Sedge Carex umbellata 58
- Parkinsonia aculeata Parkinsonia aculeata —
- Parlin's Pussytoes Antennaria parlinii 23
- Paronychia americana Paronychia americana —
- Paronychia americana subsp. americana Paronychia americana subsp. americana —
- Paronychia americana subsp. pauciflora Paronychia americana subsp. pauciflora —
- Paronychia baldwinii subsp. baldwinii Paronychia baldwinii subsp. baldwinii —
- Paronychia baldwinii subsp. riparia Paronychia baldwinii subsp. riparia —
- Paronychia patula Paronychia patula —
- Paronychia rugelii Paronychia rugelii —
- Paronychia rugelii var. interior Paronychia rugelii var. interior —
- Paronychia rugelii var. rugelii Paronychia rugelii var. rugelii —
- Parrot-feather Myriophyllum aquaticum -85
- Parsley Hawthorn Crataegus marshallii 83
- Partridge-berry Mitchella repens 12
- Paspalidium geminatum Paspalidium geminatum —
- Paspalidium geminatum var. paludivagum Paspalidium geminatum var. paludivagum —
- Paspalum acuminatum Paspalum acuminatum —
- Paspalum conspersum Paspalum conspersum —
- Paspalum intermedium Paspalum intermedium —
- Paspalum malacophyllum Paspalum malacophyllum —
- Paspalum nicorae Paspalum nicorae —
- Paspalum plicatulum Paspalum plicatulum —
- Paspalum scrobiculatum Paspalum scrobiculatum —
- Passionfruit; Purple Granadilla; Passion Fruit Passiflora edulis —
- Pasture Flatsedge Kyllinga gracillima —
- Path Rush Juncus tenuis 41
- Pavonia hastata Pavonia hastata —
- Peach Prunus persica —
- Peanut Arachis hypogaea —
- Pear Hawthorn Crataegus calpodendron 83
- Pearl Millet Pennisetum glaucum —
- Pecan Carya illinoinensis 74
- Pedicularis canadensis subsp. canadensis Pedicularis canadensis subsp. canadensis —
- Peelbark St. John's-wort Hypericum fasciculatum 71
- Pennisetum villosum Pennisetum villosum —
- Pennsylvania Bittercress Cardamine pensylvanica 51
- Pennsylvania Everlasting Gamochaeta pensylvanica —
- Pennsylvania Pellitory Parietaria pensylvanica 25
- Pennsylvania Rush Juncus gymnocarpus 41
- Pennsylvania Sedge Carex pensylvanica 58
- Pennsylvania Smartweed Polygonum pensylvanicum 75
- Penstemon dissectus Penstemon dissectus —
- Penstemon laxiflorus Penstemon laxiflorus —
- Penstemon multiflorus Penstemon multiflorus —
- Pentodon pentandrus Pentodon pentandrus —
- Peperomia pellucida Peperomia pellucida —
- Peppervine Ampelopsis arborea 65
- Perennial Ragweed Ambrosia psilostachya 67
- Perennial Ryegrass Lolium perenne —
- Perennial Saltmarsh Aster Symphyotrichum tenuifolium 93
- Perennial Sandgrass Triplasis americana 12
- Perfoliate Bellwort Uvularia perfoliata 23
- Perfoliate Horse-gentian Triosteum perfoliatum 21
- Perilla frutescens var. frutescens Perilla frutescens var. frutescens —
- Perplexed Tick-trefoil Desmodium perplexum 69
- Peruvian Zinnia Zinnia peruviana —
- Petite-plant Lepuropetalon spathulatum 10
- Petty Spurge Euphorbia peplus —
- Petunia integrifolia Petunia integrifolia —
- Phacelia dubia var. georgiana Phacelia dubia var. georgiana —
- Phalaris angusta Phalaris angusta —
- Phaseolus polystachios var. polystachios Phaseolus polystachios var. polystachios —
- Philadelphia Fleabane Erigeron philadelphicus 91
- Philadelphia Fleabane Erigeron philadelphicus var. philadelphicus 87
- Philadelphia Panic Grass Panicum philadelphicum 49
- Philadelphus floridus Philadelphus floridus —
- Philadelphus pubescens var. intectus Philadelphus pubescens var. intectus —
- Phlebodium aureum Phlebodium aureum —
- Phlox amoena subsp. amoena Phlox amoena subsp. amoena —
- Phlox amoena subsp. lighthipei Phlox amoena subsp. lighthipei —
- Phlox carolina subsp. alta Phlox carolina subsp. alta —
- Phlox carolina subsp. angusta Phlox carolina subsp. angusta —
- Phlox carolina subsp. carolina Phlox carolina subsp. carolina —
- Phlox carolina subsp. turritella Phlox carolina subsp. turritella —
- Phlox divaricata subsp. divaricata Phlox divaricata subsp. divaricata —
- Phlox divaricata subsp. laphamii Phlox divaricata subsp. laphamii —
- Phlox drummondii subsp. drummondii Phlox drummondii subsp. drummondii —
- Phlox floridana Phlox floridana —
- Phlox glaberrima subsp. glaberrima Phlox glaberrima subsp. glaberrima —
- Phlox glaberrima subsp. interior Phlox glaberrima subsp. interior —
- Phlox glaberrima subsp. triflora Phlox glaberrima subsp. triflora —
- Phlox maculata subsp. maculata Phlox maculata subsp. maculata —
- Phlox maculata subsp. pyramidalis Phlox maculata subsp. pyramidalis —
- Phlox nivalis subsp. hentzii Phlox nivalis subsp. hentzii —
- Phlox nivalis subsp. nivalis Phlox nivalis subsp. nivalis —
- Phlox pilosa subsp. detonsa Phlox pilosa subsp. detonsa —
- Phlox pilosa subsp. pilosa Phlox pilosa subsp. pilosa —
- Phlox subulata subsp. subulata Phlox subulata subsp. subulata —
- Photinia floribunda Photinia floribunda —
- Photinia melanocarpa Photinia melanocarpa —
- Phyla nodiflora Phyla nodiflora 48
- Phyllanthus caroliniensis subsp. caroliniensis Phyllanthus caroliniensis subsp. caroliniensis —
- Phyllostachys edulis Phyllostachys edulis —
- Phyllostachys nigra Phyllostachys nigra —
- Phyllostachys sulphurea Phyllostachys sulphurea —
- Physalis arenicola Physalis arenicola —
- Physalis heterophylla var. heterophylla Physalis heterophylla var. heterophylla —
- Physalis pubescens var. integrifolia Physalis pubescens var. integrifolia —
- Physalis virginiana var. virginiana Physalis virginiana var. virginiana —
- Physostegia virginiana subsp. praemorsa Physostegia virginiana subsp. praemorsa —
- Physostegia virginiana subsp. virginiana Physostegia virginiana subsp. virginiana —
- Phytolacca americana var. americana Phytolacca americana var. americana —
- Pickerelweed Pontederia cordata 59
- Pickering's Dawnflower Stylisma pickeringii 22
- Piedmont Bedstraw Cruciata pedemontana —
- Piedmont Black-senna Seymeria pectinata 29
- Piedmont False-pimpernel Lindernia monticola 23
- Piedmont Flatsedge Cyperus distans —
- Piedmont Foamflower Tiarella cordifolia 17
- Piedmont Indigo-bush Amorpha schwerinii 77
- Piedmont Rhododendron Rhododendron minus 90
- Pieris phillyreifolia Pieris phillyreifolia —
- Pignut Hickory Carya glabra 74
- Pilea pumila var. pumila Pilea pumila var. pumila —
- Piloblephis rigida Piloblephis rigida —
- Pin Oak Quercus palustris 88
- Pinckneya bracteata Pinckneya bracteata —
- Pine Barren Fluffgrass Tridens ambiguus 32
- Pine Barren Gentian Gentiana autumnalis —
- Pine Barren Goldenrod Solidago fistulosa 90
- Pine-barren Flatsedge Cyperus retrorsus 43
- Pine-barren Sandwort Minuartia caroliniana —
- Pine-barren Tick-trefoil Desmodium strictum 69
- Pinebarren Death-camas Zigadenus leimanthoides —
- Pinebarren Frostweed Helianthemum corymbosum 32
- Pinebarren Sedge Carex turgescens 58
- Pinebarrens Peanut-grass Amphicarpum purshii —
- Pineland Beaksedge Rhynchospora perplexa 44
- Pineland Hibiscus Hibiscus aculeatus 78
- Pineland Pinweed Lechea sessiliflora 22
- Pineland Plantain Plantago sparsiflora 69
- Pineland Rayless-goldenrod Bigelowia nudata 15
- Pineland Scaly-pink Stipulicida setacea 12
- Pineland Silkgrass Pityopsis aspera 74
- Pineland Silkgrass; Pineland Silk Grass Pityopsis aspera var. aspera —
- Pineland Squarehead Tetragonotheca helianthoides 17
- Pineland St. John's-wort Hypericum suffruticosum 71
- Pineland Threeseed Mercury Acalypha ostryifolia 36
- Pineland Yellow-eyed-grass Xyris stricta 29
- Pineweed Hypericum gentianoides 68
- Pinewoods Fingergrass Eustachys petraea 23
- Pinewoods Milkweed Asclepias humistrata 67
- Pinewoods Rose-gentian Sabatia gentianoides 14
- Pineywoods Dropseed Sporobolus junceus 36
- Pinguicula planifolia Pinguicula planifolia —
- Pinguicula primuliflora Pinguicula primuliflora —
- Pink Azalea Rhododendron periclymenoides 90
- Pink Bogbutton Sclerolepis uniflora 8
- Pink Evening-primrose Oenothera speciosa —
- Pink Fuzzy-bean Strophostyles umbellata 52
- Pink Lady's-slipper Cypripedium acaule 28
- Pink Milkwort Polygala incarnata —
- Pink Purslane Portulaca pilosa 59
- Pink Queen Cleome hassleriana —
- Pink Redstem Ammannia latifolia 19
- Pink Sundew Drosera capillaris 20
- Pink Thoroughwort Fleischmannia incarnata 83
- Pink Tickseed Coreopsis rosea 65
- Pink Woodsorrel Oxalis debilis —
- Pinus elliottii var. elliottii Pinus elliottii var. elliottii —
- Pipevine Aristolochia macrophylla 20
- Pipsissewa Chimaphila umbellata —
- Piriqueta cistoides subsp. caroliniana Piriqueta cistoides subsp. caroliniana —
- Piriqueta cistoides subsp. cistoides Piriqueta cistoides subsp. cistoides —
- Pistachio Pistacia chinensis —
- Pitch Pine Pinus rigida 74
- Pitchfork Crowngrass Paspalum bifidum 66
- Pitseeded Goosefoot Chenopodium berlandieri 51
- Pitted Jointgrass Coelorachis cylindrica 8
- Pitted Stripeseed Piriqueta cistoides —
- Pityopsis graminifolia var. graminifolia Pityopsis graminifolia var. graminifolia —
- Pityopsis graminifolia var. latifolia Pityopsis graminifolia var. latifolia —
- Pityopsis oligantha Pityopsis oligantha —
- Plains Lovegrass Eragrostis intermedia 32
- Planer-tree Planera aquatica 23
- Plantago rugelii var. rugelii Plantago rugelii var. rugelii —
- Plantain-leaf Pussytoes Antennaria plantaginifolia 26
- Plantainleaf Sedge Carex plantaginea 59
- Platanthera blephariglottis var. conspicua Platanthera blephariglottis var. conspicua —
- Platanthera chapmanii Platanthera chapmanii —
- Platanthera flava var. flava Platanthera flava var. flava —
- Platanthera flava var. herbiola Platanthera flava var. herbiola —
- Pleatleaf Knotweed Polygonum tenue 75
- Pleioblastus simonii Pleioblastus simonii —
- Pleopeltis polypodioides subsp. michauxiana Pleopeltis polypodioides subsp. michauxiana —
- Pluchea foetida var. foetida Pluchea foetida var. foetida —
- Pluchea foetida var. imbricata Pluchea foetida var. imbricata —
- Pluchea odorata var. odorata Pluchea odorata var. odorata 68
- Plukenet's Flatsedge Cyperus plukenetii 42
- Plumed Beaksedge Rhynchospora plumosa 44
- Poa pratensis subsp. pratensis Poa pratensis subsp. pratensis —
- Poet's Narcissus Narcissus poeticus —
- Pointed Broom Sedge Carex scoparia 58
- Pointedleaf Tick-trefoil Desmodium glutinosum 69
- Poison Sumac Toxicodendron vernix 87
- Poison-hemlock Conium maculatum —
- Poison-ivy Toxicodendron radicans 81
- Poke Milkweed Asclepias exaltata 67
- Polanisia dodecandra subsp. dodecandra Polanisia dodecandra subsp. dodecandra —
- Polanisia tenuifolia Polanisia tenuifolia —
- Polycarpon tetraphyllum subsp. tetraphyllum Polycarpon tetraphyllum subsp. tetraphyllum —
- Polygala ambigua Polygala ambigua —
- Polygala balduinii Polygala balduinii —
- Polygala boykinii Polygala boykinii —
- Polygala boykinii var. boykinii Polygala boykinii var. boykinii —
- Polygala chapmanii Polygala chapmanii —
- Polygala crenata Polygala crenata —
- Polygala cruciata var. cruciata Polygala cruciata var. cruciata —
- Polygala grandiflora var. grandiflora Polygala grandiflora var. grandiflora —
- Polygala leptostachys Polygala leptostachys —
- Polygala setacea Polygala setacea —
- Polygonella fimbriata Polygonella fimbriata —
- Polygonella polygama Polygonella polygama 8
- Polygonum arenastrum Polygonum arenastrum —
- Polygonum glabrum Polygonum glabrum —
- Polygonum meisnerianum Polygonum meisnerianum —
- Polygonum meisnerianum var. beyrichianum Polygonum meisnerianum var. beyrichianum —
- Polypogon maritimus Polypogon maritimus —
- Polystichum acrostichoides var. acrostichoides Polystichum acrostichoides var. acrostichoides —
- Pond Cypress Taxodium ascendens 51
- Pond Love Grass Eragrostis japonica —
- Pond Pine Pinus serotina 74
- Pondberry Lindera melissifolia 65
- Pondspice Litsea aestivalis 21
- Poorjoe Diodia teres —
- Poorland Flatsedge Cyperus compressus 42
- Populus deltoides subsp. deltoides Populus deltoides subsp. deltoides —
- Porter's Reedgrass Calamagrostis porteri 25
- Porters Goldenrod Solidago porteri 90
- Portulaca biloba Portulaca biloba —
- Portulaca umbraticola Portulaca umbraticola —
- Portulaca umbraticola subsp. coronata Portulaca umbraticola subsp. coronata —
- Portulaca umbraticola subsp. umbraticola Portulaca umbraticola subsp. umbraticola —
- Possumhaw Holly Ilex decidua 97
- Possumhaw Viburnum Viburnum nudum 85
- Post Oak Quercus stellata 88
- Potamogeton foliosus subsp. foliosus Potamogeton foliosus subsp. foliosus —
- Potamogeton pusillus subsp. pusillus Potamogeton pusillus subsp. pusillus —
- Potato Dwarf-dandelion Krigia dandelion 25
- Potentilla canadensis var. canadensis Potentilla canadensis var. canadensis —
- Potentilla canadensis var. villosissima Potentilla canadensis var. villosissima —
- Potentilla norvegica subsp. monspeliensis Potentilla norvegica subsp. monspeliensis —
- Poverty Dropseed Sporobolus vaginiflorus 36
- Poverty Oatgrass Danthonia spicata 33
- Poverty Rush Juncus anthelatus 41
- Powdery Thalia Thalia dealbata 30
- Prairie Buttercup Ranunculus platensis —
- Prairie Dock Silphium terebinthinaceum 53
- Prairie Dropseed Sporobolus heterolepis 36
- Prairie False Foxglove Agalinis heterophylla —
- Prairie Fleabane Erigeron strigosus 87
- Prairie Goldenrod Oligoneuron album —
- Prairie Rose; Climbing Rose Rosa setigera var. setigera —
- Prairie Rose; Climbing Rose Rosa setigera var. tomentosa —
- Prairie Rosinweed; Prairie Dock Silphium terebinthinaceum var. terebinthinaceum —
- Prairie Three-awn Aristida oligantha 19
- Prairie Wedgescale Sphenopholis obtusata 8
- Prairie Willow Salix humilis 100
- Prairie-tea Croton Croton monanthogynus 75
- Prenanthes barbata Prenanthes barbata —
- Prenanthes trifoliolata Prenanthes trifoliolata —
- Pretty Sedge Carex woodii 58
- Price's Yellow Woodsorrel Oxalis priceae 57
- Prickly Bog Sedge Carex atlantica 58
- Prickly Fanpetals Sida spinosa —
- Prickly Gooseberry Ribes cynosbati 75
- Prickly Lettuce Lactuca serriola —
- Prickly Sowthistle Sonchus asper -30
- Prince's-feather Polygonum orientale —
- Princess-tree Paulownia tomentosa -85
- Pringles Old Field Aster Symphyotrichum pilosum var. pringlei 93
- Proboscidea louisianica subsp. louisianica Proboscidea louisianica subsp. louisianica —
- Proserpinaca palustris var. crebra Proserpinaca palustris var. crebra —
- Proso Millet Panicum miliaceum —
- Prostrate Blue Violet Viola walteri 77
- Prostrate Knotweed Polygonum aviculare —
- Prostrate Spurge Chamaesyce prostrata —
- Prostrate Tick-trefoil Desmodium rotundifolium 69
- Prune-fruit Sedge Carex corrugata 58
- Prunella vulgaris subsp. lanceolata Prunella vulgaris subsp. lanceolata —
- Prunella vulgaris subsp. vulgaris Prunella vulgaris subsp. vulgaris —
- Prunus angustifolia var. angustifolia Prunus angustifolia var. angustifolia —
- Prunus pensylvanica var. pensylvanica Prunus pensylvanica var. pensylvanica —
- Prunus persica var. persica Prunus persica var. persica —
- Prunus umbellata var. injuncunda Prunus umbellata var. injuncunda —
- Prunus umbellata var. umbellata Prunus umbellata var. umbellata —
- Pseudognaphalium helleri subsp. helleri Pseudognaphalium helleri subsp. helleri —
- Pseudognaphalium helleri subsp. micradenium Pseudognaphalium helleri subsp. micradenium —
- Pseudognaphalium obtusifolium subsp. obtusifolium Pseudognaphalium obtusifolium subsp. obtusifolium —
- Pseudognaphalium obtusifolium subsp. praecox Pseudognaphalium obtusifolium subsp. praecox —
- Ptelea trifoliata subsp. trifoliata Ptelea trifoliata subsp. trifoliata —
- Pteridium aquilinum Pteridium aquilinum —
- Pteroglossaspis ecristata Pteroglossaspis ecristata —
- Pumpkin Ash Fraxinus profunda 75
- Purple Amaranth Amaranthus blitum —
- Purple Bedstraw Galium latifolium 55
- Purple Burgamot Monarda media 70
- Purple Dead-nettle Lamium purpureum —
- Purple False Foxglove Agalinis purpurea 54
- Purple Fringeless Orchid Platanthera peramoena 27
- Purple Giant-hyssop Agastache scrophulariifolia 45
- Purple Honeycomb-head Balduina atropurpurea 48
- Purple Lovegrass Eragrostis spectabilis 32
- Purple Meadow Parsnip Thaspium trifoliatum var. trifoliatum 24
- Purple Milkweed Asclepias purpurascens 70
- Purple Nutsedge Cyperus rotundus —
- Purple Pitcherplant Sarracenia purpurea —
- Purple Prairie Clover Dalea purpurea —
- Purple Salsify Tragopogon porrifolius —
- Purple Sandgrass Triplasis purpurea 12
- Purple Sedge Carex purpurifera 58
- Purple Spikerush Eleocharis atropurpurea —
- Purple Stem Aster; Swamp Aster; Bristly Aster Symphyotrichum puniceum var. puniceum 93
- Purple Turtlehead; Red Turtlehead Chelone obliqua var. obliqua 33
- Purple Twayblade Liparis liliifolia 8
- Purple-flowering Raspberry Rubus odoratus 97
- Purple-osier Willow Salix purpurea —
- Purple-stem Cliffbrake Pellaea atropurpurea 8
- Purpledisk Sunflower Helianthus atrorubens 96
- Purplehead Sneezeweed Helenium flexuosum 68
- Purpleleaf Willowherb Epilobium coloratum 42
- Purplestem Aster Symphyotrichum puniceum 93
- Purplestem Beggarticks Bidens connata 87
- Purpletop Vervain Verbena incompta -30
- Pursh's Rattlebox Crotalaria purshii 57
- Pursh's Wild-petunia Ruellia purshiana 43
- Purslane Speedwell Veronica peregrina —
- Puttyroot Aplectrum hyemale 8
- Pycnanthemum floridanum Pycnanthemum floridanum —
- Pycnanthemum nudum Pycnanthemum nudum —
- Pycnanthemum torrei Pycnanthemum torrei —
- Pycnanthemum verticillatum var. pilosum Pycnanthemum verticillatum var. pilosum —
- Pyramid Magnolia Magnolia pyramidata —
Q
- Queen-Anne's-Lace Daucus carota -30
- Queen's-delight Stillingia sylvatica 16
- Quercus arkansana Quercus arkansana —
- Quercus chapmanii Quercus chapmanii —
- Quercus coccinea var. coccinea Quercus coccinea var. coccinea —
- Quercus coccinea var. tuberculata Quercus coccinea var. tuberculata —
- Quercus hemisphaerica var. hemisphaerica Quercus hemisphaerica var. hemisphaerica —
- Quercus hemisphaerica var. maritima Quercus hemisphaerica var. maritima —
- Quercus myrtifolia Quercus myrtifolia —
- Quercus shumardii var. shumardii Quercus shumardii var. shumardii —
- Quercus sinuata Quercus sinuata —
- Quercus sinuata var. sinuata Quercus sinuata var. sinuata —
- Quill Fameflower Phemeranthus teretifolius 15
- Quill Sedge Carex tenera 58
- Quillwort Arrowhead Sagittaria isoetiformis 58
R
- Rabbitfoot Clover Trifolium arvense —
- Racemed Milkwort Polygala polygama —
- Radford's Sedge Carex radfordii —
- Rafinesque's Seedbox Ludwigia hirtella 58
- Ragged Fringed Orchid Platanthera lacera 27
- Rain Lily Zephyranthes simpsonii —
- Ramie Boehmeria nivea —
- Ranunculus acris var. acris Ranunculus acris var. acris —
- Ranunculus hispidus var. hispidus Ranunculus hispidus var. hispidus —
- Ranunculus pusillus var. pusillus Ranunculus pusillus var. pusillus —
- Rapeseed Brassica napus —
- Rat's-tail Fescue Vulpia myuros —
- Rattlesnake Fern Botrychium virginianum 11
- Rattlesnake Hawkweed Hieracium venosum 35
- Rattlesnake Master; Button Eryngo Eryngium yuccifolium var. yuccifolium 48
- Rattlesnake-master Eryngium yuccifolium 52
- Rattleweed Crotalaria retusa —
- Ravenel's Witchgrass Dichanthelium ravenelii 49
- Ravenfoot Sedge Carex crus-corvi 58
- Rayless Mock Goldenrod; Rayless Mock Golden Rod Solidago discoidea —
- Red Buckeye Aesculus pavia 71
- Red Buckeye; Scarlet Buckeye Aesculus pavia var. pavia 71
- Red Chokeberry Photinia pyrifolia —
- Red Clover Trifolium pratense —
- Red Elderberry Sambucus racemosa —
- Red Fescue Festuca rubra 36
- Red Grape Vitis palmata —
- Red Hawthorn Crataegus iracunda 83
- Red Hickory Carya ovalis 74
- Red Lovegrass Eragrostis secundiflora —
- Red Maple Acer rubrum 85
- Red Milkweed Asclepias rubra —
- Red Morning-glory Ipomoea coccinea -30
- Red Mulberry Morus rubra 48
- Red Oak; Northern Red Oak Quercus rubra var. rubra 88
- Red Ramps Allium tricoccum 67
- Red River Scaleseed Spermolepis inermis 15
- Red Seed Plantain Plantago rhodosperma —
- Red Spiderling Boerhavia coccinea —
- Red Sprangletop Leptochloa panicea 26
- Red Trillium Trillium erectum 25
- Red Turtlehead Chelone obliqua 33
- Red Whiskered Clammy Weed Polanisia dodecandra —
- Red-seeded Dandelion Taraxacum laevigatum —
- Redpod Rush Juncus trigonocarpus 41
- Redroot Lachnanthes caroliana 22
- Redroot Amaranth Amaranthus retroflexus 68
- Redroot Flatsedge Cyperus erythrorhizos 42
- Redstem Stork's-bill Erodium cicutarium —
- Redtop Bentgrass Agrostis gigantea —
- Redtop Panic Grass Panicum rigidulum var. rigidulum 49
- Redtop Panicgrass Panicum rigidulum 49
- Reflexed Flatsedge Cyperus refractus 42
- Reflexed Sedge Carex retroflexa 58
- Rescue Grass Bromus catharticus —
- Resindot Sunflower Helianthus resinosus 96
- Resurrection Fern Pleopeltis polypodioides —
- Reversed Clover Trifolium resupinatum —
- Rhapidophyllum hystrix Rhapidophyllum hystrix —
- Rhexia nuttallii Rhexia nuttallii —
- Rhexia parviflora Rhexia parviflora —
- Rhexia salicifolia Rhexia salicifolia —
- Rhododendron austrinum Rhododendron austrinum —
- Rhododendron flammeum Rhododendron flammeum —
- Rhododendron prunifolium Rhododendron prunifolium —
- Rhus copallinum var. leucantha Rhus copallinum var. leucantha —
- Rhynchosia michauxii Rhynchosia michauxii —
- Rhynchosia minima Rhynchosia minima —
- Rhynchosia tomentosa var. mollissima Rhynchosia tomentosa var. mollissima —
- Rhynchosia tomentosa var. tomentosa Rhynchosia tomentosa var. tomentosa —
- Rhynchospora fascicularis var. distans Rhynchospora fascicularis var. distans —
- Rhynchospora fascicularis var. fascicularis Rhynchospora fascicularis var. fascicularis —
- Rhynchospora fernaldii Rhynchospora fernaldii —
- Rhynchospora globularis var. globularis Rhynchospora globularis var. globularis —
- Rhynchospora globularis var. saxicola Rhynchospora globularis var. saxicola —
- Rhynchospora harveyi var. culixa Rhynchospora harveyi var. culixa —
- Rhynchospora harveyi var. harveyi Rhynchospora harveyi var. harveyi —
- Rhynchospora punctata Rhynchospora punctata —
- Rhynchospora solitaria Rhynchospora solitaria —
- Ribbed Bishopweed Ptilimnium costatum 24
- Ribbed Sedge Carex virescens 58
- Ribbonleaf Pondweed Potamogeton epihydrus 40
- Rice Cutgrass Leersia oryzoides 32
- Ricefield Flatsedge Cyperus iria —
- Rich-woods Sedge Carex oligocarpa 59
- Richard's Yellow-eyed-grass Xyris jupicai 29
- Ridged Yellow Flax Linum striatum 44
- Rigid Whitetop Aster Symphyotrichum retroflexum 93
- Ringseed Rush Juncus filipendulus —
- Ripgut Brome Bromus diandrus —
- River Birch Betula nigra 74
- River Oats Chasmanthium latifolium 36
- Riverbank Wild-rye Elymus riparius 46
- Roadside Agrimony Agrimonia striata 33
- Roadside Pennycress Thlaspi alliaceum —
- Roan Mountain Goldenrod Solidago roanensis 90
- Roan Mountain Sedge Carex roanensis 58
- Robbins's Spikerush Eleocharis robbinsii 34
- Robin's-plantain Erigeron pulchellus 88
- Robinia viscosa var. viscosa Robinia viscosa var. viscosa —
- Rock Buttercup Ranunculus micranthus 51
- Rock Firmoss Huperzia porophila 11
- Rock Harlequin Corydalis sempervirens 16
- Rock Muhly Muhlenbergia sobolifera 27
- Rock Skullcap Scutellaria saxatilis 37
- Rock Spikemoss Selaginella rupestris 18
- Rocket Larkspur Consolida ajacis —
- Rorippa palustris subsp. fernaldiana Rorippa palustris subsp. fernaldiana —
- Rosa virginiana var. virginiana Rosa virginiana var. virginiana —
- Rose Campion Lychnis coronaria —
- Rose Glory-bower Clerodendrum bungei —
- Rose Pitcherplant; Rose Pitcher Plant Sarracenia rosea —
- Rose Pogonia Pogonia ophioglossoides 8
- Rose Vervain Glandularia canadensis 77
- Rose-moss Portulaca grandiflora —
- Rose-of-Sharon Hibiscus syriacus -30
- Rosebay Rhododendron Rhododendron maximum 97
- Rosemary Frostweed Helianthemum rosmarinifolium 32
- Rosy Camphorweed Pluchea rosea 68
- Rosy Sedge Carex rosea 58
- Rosy Twisted-stalk Streptopus lanceolatus 11
- Rough American Barnyard Grass Echinochloa muricata var. muricata —
- Rough Bent Grass Agrostis scabra 44
- Rough Blazing-star Liatris aspera 52
- Rough Bluegrass Poa trivialis —
- Rough Boneset Eupatorium pilosum 83
- Rough Cinquefoil Potentilla norvegica 68
- Rough Dropseed Sporobolus clandestinus 36
- Rough False Pennyroyal Hedeoma hispida 23
- Rough Flatsedge Cyperus retrofractus 42
- Rough Hair Witch Grass Dichanthelium strigosum var. leucoblepharis 49
- Rough Hair Witch Grass Dichanthelium strigosum var. strigosum —
- Rough Hawkweed Hieracium scabrum 35
- Rough Hedge-nettle Stachys aspera 56
- Rough Leaf Dogwood Cornus drummondii —
- Rough Mexican-clover Richardia scabra —
- Rough Witchgrass Dichanthelium leucothrix 49
- Rough-fruit Amaranth Amaranthus tuberculatus —
- Rough-hair Witchgrass Dichanthelium strigosum 49
- Roughfruit Scaleseed Spermolepis divaricata 15
- Roughleaf Dogwood Cornus asperifolia 95
- Roughseed Buttercup; Roughseeded Buttercup; Rough Seed Buttercup; Rough Seeded Buttercup; Roughseed Butter Cup; Roughseeded Butter Cup; Rough Seed Butter Cup; Rough Seeded Butter Cup Ranunculus muricatus —
- Round Leaf Fire Pink Silene rotundifolia —
- Round-lobed Hepatica Hepatica nobilis var. obtusa —
- Roundfruit Hedge-hyssop Gratiola virginiana 8
- Roundhead Lespedeza Lespedeza capitata 70
- Roundhead Rush Juncus validus 41
- Roundleaf Bluet Houstonia procumbens 35
- Roundleaf Ragwort Packera obovata 83
- Roundleaf Serviceberry Amelanchier sanguinea 77
- Roundleaf Sundew Drosera rotundifolia 20
- Roundleaf Thoroughwax Bupleurum rotundifolium —
- Roundleaf Thoroughwort Eupatorium rotundifolium 83
- Roundleaf Yellow Violet Viola rotundifolia 78
- Roundpod St. John's-wort Hypericum cistifolium 71
- Roundseed Witchgrass Dichanthelium sphaerocarpon 49
- Royal Catchfly Silene regia —
- Royal Fern Osmunda regalis 28
- Rubus apogaeus Rubus apogaeus —
- Rubus arvensis Rubus arvensis —
- Rubus audax Rubus audax —
- Rubus ictus Rubus ictus —
- Rubus leviculus Rubus leviculus —
- Rubus lucidus Rubus lucidus —
- Rubus odoratus var. odoratus Rubus odoratus var. odoratus —
- Rubus persistens Rubus persistens —
- Rubus probabilis Rubus probabilis —
- Rubus probativus Rubus probativus —
- Rubus randolphiorum Rubus randolphiorum —
- Rubus sons Rubus sons —
- Rubus suus Rubus suus —
- Rubus thyrsoides Rubus thyrsoides —
- Rubus trux Rubus trux —
- Rudbeckia auriculata Rudbeckia auriculata —
- Rudbeckia fulgida var. fulgida Rudbeckia fulgida var. fulgida 75
- Rudbeckia fulgida var. speciosa Rudbeckia fulgida var. speciosa —
- Rudbeckia fulgida var. umbrosa Rudbeckia fulgida var. umbrosa 75
- Rudbeckia hirta var. angustifolia Rudbeckia hirta var. angustifolia —
- Rudbeckia mohrii Rudbeckia mohrii —
- Rudbeckia mollis Rudbeckia mollis —
- Rudbeckia nitida Rudbeckia nitida —
- Rue Anemone Thalictrum thalictroides 47
- Ruellia caerulea Ruellia caerulea —
- Ruellia caroliniensis subsp. caroliniensis Ruellia caroliniensis subsp. caroliniensis —
- Ruellia caroliniensis subsp. ciliosa Ruellia caroliniensis subsp. ciliosa —
- Ruellia caroliniensis var. caroliniensis Ruellia caroliniensis var. caroliniensis —
- Ruellia noctiflora Ruellia noctiflora —
- Ruellia pedunculata subsp. pinetorum Ruellia pedunculata subsp. pinetorum —
- Rufous Bulrush Scirpus pendulus 45
- Rumex crispus subsp. crispus Rumex crispus subsp. crispus —
- Running Clubmoss Lycopodium clavatum 11
- Running Oak Quercus pumila 85
- Running Strawberry-bush Euonymus obovatus 57
- Russian Thistle Salsola tragus —
- Rusty Blackhaw Viburnum rufidulum 85
- Ruth's Little Brown Jug Hexastylis arifolia var. ruthii 19
- Ruth's Sedge Carex ruthii 58
- Rye Brome Bromus secalinus -30
S
- Sabatia bartramii Sabatia bartramii —
- Sabatia brevifolia Sabatia brevifolia —
- Sabatia dodecandra var. foliosa Sabatia dodecandra var. foliosa —
- Sabatia macrophylla Sabatia macrophylla —
- Sabatia macrophylla var. macrophylla Sabatia macrophylla var. macrophylla —
- Sabatia macrophylla var. recurvans Sabatia macrophylla var. recurvans —
- Saccharum brevibarbe Saccharum brevibarbe —
- Saccharum brevibarbe var. contortum Saccharum brevibarbe var. contortum —
- Saccharum coarctatum Saccharum coarctatum —
- Saccharum ravennae Saccharum ravennae —
- Sacred Lotus Nelumbo nucifera —
- Sagina decumbens subsp. decumbens Sagina decumbens subsp. decumbens —
- Sagittaria graminea var. chapmanii Sagittaria graminea var. chapmanii —
- Sagittaria graminea var. graminea Sagittaria graminea var. graminea —
- Sagittaria lancifolia subsp. lancifolia Sagittaria lancifolia subsp. lancifolia —
- Sagittaria lancifolia subsp. media Sagittaria lancifolia subsp. media —
- Sago Pondweed Stuckenia pectinata 40
- Salicornia depressa Salicornia depressa —
- Salix floridana Salix floridana —
- Sallow Sedge Carex lurida 58
- Salmon Tasselflower Emilia fosbergii —
- Salsola kali subsp. kali Salsola kali subsp. kali —
- Salsola kali subsp. pontica Salsola kali subsp. pontica —
- Salt-marsh Pink Sabatia stellaris 14
- Saltcedar Tamarix ramosissima —
- Saltmarsh Bulrush Schoenoplectus robustus —
- Saltmarsh Cordgrass Spartina alterniflora 44
- Saltmarsh Fingergrass Eustachys glauca 23
- Saltmarsh Fleabane Pluchea odorata 68
- Saltmarsh Morning-glory Ipomoea sagittata 83
- Saltmarsh Sandspurry Spergularia salina 8
- Saltmarsh Water-hemp Amaranthus cannabinus 68
- Saltmeadow Cordgrass Spartina patens 44
- Saltwater False-willow Baccharis angustifolia 77
- Salvia azurea var. azurea Salvia azurea var. azurea 55
- Salvia verbenaca Salvia verbenaca —
- Salvinia minima Salvinia minima -30
- Sambucus racemosa var. racemosa Sambucus racemosa var. racemosa —
- Sand Bitter Cress Cardamine parviflora var. arenicola 51
- Sand Bittercress Cardamine parviflora 51
- Sand Blackberry Rubus cuneifolius 95
- Sand Dropseed Sporobolus cryptandrus 36
- Sand Hickory Carya pallida 74
- Sand Live Oak Quercus geminata 88
- Sand Pine Pinus clausa —
- Sand Spikemoss Selaginella arenicola —
- Sand Spikerush Eleocharis montevidensis 34
- Sand Tick-trefoil Desmodium lineatum 69
- Sand-myrtle Leiophyllum buxifolium 77
- Sandbar Lovegrass Eragrostis frankii 32
- Sandbog Death-camas Zigadenus glaberrimus 12
- Sandhill Golden-aster Pityopsis pinifolia 74
- Sandhill Thistle Cirsium repandum 89
- Sandhills Bean Phaseolus polystachios var. sinuatus —
- Sandhills Milkvetch Astragalus michauxii 72
- Sandpaper Vervain Verbena scabra 77
- Sandplain Yellow Flax Linum intercursum 44
- Sandy-field Beaksedge Rhynchospora megalocarpa 44
- Sandy-field Hairsedge Bulbostylis stenophylla 8
- Sandywoods Chaffhead Carphephorus bellidifolius 40
- Sapindus mukorossi Sapindus mukorossi —
- Sapindus saponaria Sapindus saponaria —
- Sapindus saponaria var. saponaria Sapindus saponaria var. saponaria —
- Sarcocornia perennis Sarcocornia perennis —
- Sargents Hawthorn Crataegus sargentii —
- Sarracenia psittacina Sarracenia psittacina —
- Sarracenia purpurea subsp. purpurea Sarracenia purpurea subsp. purpurea —
- Sarracenia rubra subsp. rubra Sarracenia rubra subsp. rubra —
- Sarsaparilla Vine; Dwarf Smilax Smilax pumila —
- Sarvis Holly Ilex amelanchier 97
- Sassafras Sassafras albidum 71
- Savanna Beaksedge Rhynchospora debilis 44
- Savanna Cowbane Oxypolis ternata 19
- Savanna Indian-plantain Arnoglossum ovatum 46
- Savanna Iris Iris tridentata 57
- Savanna Meadow-beauty Rhexia alifanus 43
- Savanna Milkweed Asclepias pedicellata 67
- Savanna Mountain-mint Pycnanthemum flexuosum 44
- Savanna Panicgrass Phanopyrum gymnocarpon 49
- Savanna Seedbox Ludwigia virgata 58
- Savanna Sneezeweed Helenium vernale 68
- Savanna Tickseed Coreopsis linifolia 65
- Savanna Yellow-eyed-grass Xyris flabelliformis 29
- Saw Greenbrier Smilax bona-nox 71
- Sawtooth Blackberry Rubus argutus 95
- Sawtooth Oak Quercus acutissima -15
- Sawtooth Sunflower Helianthus grosseserratus 96
- Saxifraga texana Saxifraga texana —
- Scaleleaf False Foxglove Agalinis aphylla 54
- Scaly Blazing-star Liatris squarrosa 52
- Scarlet Beebalm Monarda didyma 70
- Scarlet Creeper; Scarletcreeper Ipomoea hederifolia —
- Scarlet Firethorn Pyracantha coccinea -30
- Scarlet Indian-paintbrush Castilleja coccinea 43
- Scarlet Oak Quercus coccinea 88
- Scarlet Pimpernel Anagallis arvensis —
- Scarlet Rosemallow Hibiscus coccineus —
- Scarlet Sage; Blood Sage Salvia coccinea —
- Scarlet Toothcup Ammannia coccinea 21
- Scarlet Wisteria-tree Sesbania punicea -15
- Scentless Mock-orange Philadelphus inodorus 37
- Schizachyrium sanguineum Schizachyrium sanguineum —
- Schizachyrium sanguineum var. hirtiflorum Schizachyrium sanguineum var. hirtiflorum —
- Schizachyrium scoparium var. stoloniferum Schizachyrium scoparium var. stoloniferum —
- Schizachyrium tenerum Schizachyrium tenerum —
- Schoenocaulon dubium Schoenocaulon dubium —
- Schoenolirion albiflorum Schoenolirion albiflorum —
- Scleria hirtella Scleria hirtella —
- Scleria pauciflora var. curtissii Scleria pauciflora var. curtissii —
- Scoparia dulcis Scoparia dulcis —
- Scotch Broom Cytisus scoparius -55
- Scribners Hawkweed; Scribners Hawk Weed Hieracium scribneri —
- Scribners Rosettegrass Dichanthelium oligosanthes var. scribnerianum 49
- Scrophularia nodosa Scrophularia nodosa —
- Scutellaria altamaha Scutellaria altamaha —
- Scutellaria arenicola Scutellaria arenicola —
- Scutellaria glabriuscula Scutellaria glabriuscula —
- Scutellaria lateriflora var. lateriflora Scutellaria lateriflora var. lateriflora —
- Scutellaria multiglandulosa Scutellaria multiglandulosa —
- Scutellaria ocmulgee Scutellaria ocmulgee —
- Scutellaria ovata subsp. bracteata Scutellaria ovata subsp. bracteata —
- Scutellaria ovata subsp. cuthbertii Scutellaria ovata subsp. cuthbertii —
- Scutellaria ovata subsp. ovata Scutellaria ovata subsp. ovata —
- Scutellaria parvula var. parvula Scutellaria parvula var. parvula —
- Sea Oats Uniola paniculata 19
- Sea Oxeye Borrichia frutescens 46
- Seabeach Evening-primrose Oenothera humifusa 81
- Seabeach Knotweed Polygonum glaucum 75
- Seashore Crowngrass Paspalum vaginatum 66
- Seashore Dropseed Sporobolus virginicus 36
- Seashore Mallow Kosteletzkya virginica 29
- Seashore Saltgrass Distichlis spicata 33
- Seaside Alder Alnus maritima —
- Seaside Brookweed Samolus valerandi 13
- Seaside Heliotrope Heliotropium curassavicum 24
- Seaside Seedbox Ludwigia maritima 58
- Seaside Three-awn Aristida tuberculosa 19
- Sedum lineare Sedum lineare —
- Sedum reflexum Sedum reflexum —
- Selaginella acanthonota Selaginella acanthonota —
- Selaginella arenicola subsp. arenicola Selaginella arenicola subsp. arenicola —
- Selaginella arenicola subsp. riddellii Selaginella arenicola subsp. riddellii —
- Selaginella braunii Selaginella braunii —
- Selaginella kraussiana Selaginella kraussiana —
- Selaginella ludoviciana Selaginella ludoviciana —
- Selaginella uncinata Selaginella uncinata —
- Seneca Snakeroot Polygala senega —
- Senna corymbosa Senna corymbosa —
- Sensitive Fern Onoclea sensibilis 26
- Sensitive Partridge-pea Chamaecrista nictitans 69
- September Elm Ulmus serotina 76
- Serenoa repens Serenoa repens —
- Sericea Lespedeza Lespedeza cuneata -85
- Sesamum orientale Sesamum orientale —
- Sessile-leaf Bellwort Uvularia sessilifolia 22
- Sessileleaf Tick-trefoil Desmodium sessilifolium 69
- Sesuvium crithmoides Sesuvium crithmoides —
- Setaria macrosperma Setaria macrosperma —
- Setaria macrostachya Setaria macrostachya —
- Setaria pumila subsp. pumila Setaria pumila subsp. pumila —
- Seymeria pectinata subsp. pectinata Seymeria pectinata subsp. pectinata —
- Shade Mudflower Micranthemum umbrosum 19
- Shadow-witch Ponthieva racemosa 8
- Shagbark Hickory Carya ovata 74
- Shaggy Blazing Star; Shaggy Blazingstar Liatris elegantula —
- Shaggy Crabgrass Digitaria villosa 51
- Shaggy Hedge-hyssop Gratiola pilosa 8
- Sharp Scale Spike Rush; Flat Stem Spike Rush Eleocharis compressa var. compressa 34
- Sharp Scaled Sedge Carex oxylepis var. oxylepis —
- Sharp-lobed Hepatica Hepatica nobilis var. acuta —
- Sharp-scale Sedge Carex oxylepis 58
- Sharpleaf Cancerwort Kickxia elatine —
- Sharpleaf St. John's-wort Hypericum virgatum 68
- Sharpwing Monkey-flower Mimulus alatus 40
- Shaved Sedge Carex tonsa 58
- Sheathed Flatsedge Cyperus haspan 42
- Shellbark Hickory Carya laciniosa 74
- Shepherd's-cress Teesdalia nudicaulis —
- Shield Marsh-pennywort Hydrocotyle verticillata 45
- Shingle Oak Quercus imbricaria 88
- Shining Clubmoss Huperzia lucidula 11
- Shining Fetterbush Lyonia lucida 73
- Shiny Spikegrass Chasmanthium nitidum 36
- Shiny Wedgescale Sphenopholis nitida 8
- Shinyleaf Meadowsweet Spiraea betulifolia var. corymbosa —
- Shoestring Fern; Grass Fern; Shoe String Fern; Grassfern; Shoestringfern Vittaria lineata —
- Shoreline Sea-purslane Sesuvium portulacastrum 33
- Shoreline Sedge Carex hyalinolepis 58
- Short Fringed Sedge Carex crinita var. brevicrinis 58
- Short Stemmed Iris Iris brevicaulis —
- Short-bristle Beaksedge Rhynchospora galeana —
- Short-bristle Horned Beaksedge Rhynchospora corniculata 44
- Short's Aster Symphyotrichum shortii 93
- Short's Hedge-hyssop Gratiola viscidula 8
- Shortbeak Beaksedge Rhynchospora nitens 44
- Shortia galacifolia var. galacifolia Shortia galacifolia var. galacifolia —
- Shortleaf Pine Pinus echinata 74
- Shortleaf Skeleton-grass Gymnopogon brevifolius 15
- Shortleaf Sneezeweed Helenium brevifolium 68
- Shortleaf Yellow-eyed-grass Xyris brevifolia 29
- Shortpod Draba Draba brachycarpa —
- Shortstalk Chickweed Cerastium brachypodum 43
- Shortstalk False Bindweed Calystegia silvatica —
- Showy Gentian Gentiana decora 29
- Showy Goldenrod Solidago speciosa 93
- Showy Milkwort Polygala grandiflora 30
- Showy Orchis Galearis spectabilis 14
- Showy Rattlebox Crotalaria spectabilis -15
- Showy Skullcap Scutellaria serrata 37
- Shrubby Seedbox Ludwigia suffruticosa 58
- Shrubby St. John's-wort Hypericum prolificum 71
- Shumard Oak Quercus shumardii 88
- Siberian Elm Ulmus pumila —
- Sickle Tickseed Coreopsis falcata —
- Sicklepod Senna obtusifolia —
- Sida acuta Sida acuta —
- Side Oats Grama; Sideoats Grama Bouteloua curtipendula var. curtipendula 26
- Sidebeak Pencil-flower Stylosanthes biflora 31
- Sideoats Grama Bouteloua curtipendula 27
- Sideroxylon alachuense Sideroxylon alachuense —
- Sideroxylon lanuginosum subsp. lanuginosum Sideroxylon lanuginosum subsp. lanuginosum —
- Sideroxylon reclinatum Sideroxylon reclinatum —
- Sideroxylon reclinatum subsp. reclinatum Sideroxylon reclinatum subsp. reclinatum —
- Sideroxylon thornei Sideroxylon thornei —
- Silene caroliniana subsp. caroliniana Silene caroliniana subsp. caroliniana —
- Silene latifolia subsp. alba Silene latifolia subsp. alba —
- Silene polypetala Silene polypetala —
- Silky Camellia Stewartia malacodendron 29
- Silky Dogwood Cornus amomum 95
- Silky Oatgrass Danthonia sericea 33
- Silky Wild-rye Elymus villosus —
- Silky Willow Salix sericea 99
- Silphium asteriscus var. angustatum Silphium asteriscus var. angustatum —
- Silphium compositum var. ovatifolium Silphium compositum var. ovatifolium —
- Silphium compositum var. venosum Silphium compositum var. venosum 51
- Silphium gracile Silphium gracile —
- Silphium perfoliatum var. perfoliatum Silphium perfoliatum var. perfoliatum —
- Silphium radula Silphium radula —
- Silphium trifoliatum var. latifolium Silphium trifoliatum var. latifolium —
- Silphium trifoliatum var. trifoliatum Silphium trifoliatum var. trifoliatum —
- Silver Hairgrass Aira caryophyllea —
- Silver Leaf Grape Vitis aestivalis var. bicolor 73
- Silver Maple Acer saccharinum 85
- Silver Plumegrass Saccharum alopecuroides —
- Silverleaf Hydrangea Hydrangea radiata 55
- Silverleaf Nightshade Solanum elaeagnifolium —
- Silverling Baccharis glomeruliflora 77
- Silvery Cudweed Gamochaeta argyrinea 32
- Silvery Nailwort Paronychia argyrocoma 8
- Silvery Spleenwort Deparia acrostichoides 21
- Simple-stem Everlasting Gamochaeta simplicicaulis —
- Singlehead Pussytoes Antennaria solitaria 23
- Sisyrinchium miamiense Sisyrinchium miamiense —
- Sisyrinchium xerophyllum Sisyrinchium xerophyllum —
- Six Weeks Fescue Vulpia octoflora —
- Skeleton Weed; Gum Succory; Skeletonweed; Gumsuccory Chondrilla juncea —
- Skunk-vine Paederia foetida —
- Slash Pine Pinus elliottii —
- Sleepy Catchfly Silene antirrhina 42
- Slender Spikegrass Chasmanthium laxum 36
- Slender Adder's-tongue Ophioglossum nudicaule 8
- Slender Amaranth Amaranthus viridis —
- Slender Aster Eurybia compacta —
- Slender Beaksedge Rhynchospora gracilenta 44
- Slender Blue Iris Iris prismatica 57
- Slender Calamint Clinopodium gracile —
- Slender Cottonweed Froelichia gracilis —
- Slender Crabgrass Digitaria filiformis —
- Slender Dayflower Commelina erecta 54
- Slender False Foxglove Agalinis tenuifolia 54
- Slender Fimbry Fimbristylis autumnalis 15
- Slender Flat-top Goldenrod Euthamia caroliniana 90
- Slender Flatsedge Cyperus bipartitus 42
- Slender Goldenrod Solidago erecta 90
- Slender Indiangrass Sorghastrum elliottii 48
- Slender Ironweed Vernonia angustifolia 75
- Slender Ladies'-tresses Spiranthes lacera 22
- Slender Leaf False Foxglove Agalinis tenuifolia var. tenuifolia —
- Slender Lespedeza Lespedeza virginica 71
- Slender Looseflower Sedge Carex gracilescens 58
- Slender Mannagrass Glyceria melicaria 33
- Slender Mountain-mint Pycnanthemum tenuifolium 40
- Slender Parsley-piert Aphanes microcarpa —
- Slender Plantain Plantago heterophylla 69
- Slender Rattlesnake-root Prenanthes autumnalis 48
- Slender Rockcress Arabis hirsuta var. pycnocarpa 25
- Slender Rose-gentian Sabatia campanulata 14
- Slender Scratch-daisy Croptilon divaricatum 49
- Slender Sea-purslane Sesuvium maritimum 33
- Slender Spike Rush Eleocharis tenuis var. tenuis 34
- Slender Spike Rush Eleocharis tenuis var. verrucosa —
- Slender Spikerush Eleocharis tenuis 34
- Slender Threeseed Mercury Acalypha gracilens 36
- Slender Toothwort Cardamine angustata 51
- Slender Vervain Verbena rigida —
- Slender Waternymph Najas gracillima 13
- Slender Wedgescale Sphenopholis intermedia 8
- Slender Woodland Sedge Carex digitalis 58
- Slender Woodland Sedge Carex digitalis var. digitalis 58
- Slender Woodland Sedge Carex digitalis var. macropoda 58
- Slender Yellow Woodsorrel Oxalis dillenii 57
- Slender Yellow-eyed-grass Xyris torta 29
- Slender-fruit Beaksedge Rhynchospora leptocarpa 44
- Slender-fruit Nutrush Scleria georgiana 12
- Slenderleaf False-Dragonhead Physostegia leptophylla 26
- Slenderleaf Rattlebox Crotalaria ochroleuca —
- Slim Spikerush Eleocharis elongata —
- Slim-bristle Sandspur Cenchrus brownii —
- Slim-flower Muhly Muhlenbergia tenuiflora 27
- Slimleaf Tick-trefoil Desmodium tenuifolium 69
- Slimleaf Witchgrass Dichanthelium linearifolium 49
- Slippery Elm Ulmus rubra 76
- Slow Sedge Carex pigra 58
- Small Beggarticks Bidens discoidea 87
- Small Black Blueberry Vaccinium tenellum 98
- Small Broomrape Orobanche minor -15
- Small Butterwort Pinguicula pumila 8
- Small Flower Vetch Vicia minutiflora —
- Small Green Wood Orchid Platanthera clavellata 27
- Small Headed Beaksedge; Smallheaded Beaksedge; Small Headed Beak Sedge; Smallheaded Beak Sedge; Small Head Beaksedge; Smallhead Beaksedge; Small Head Beak Sedge; Smallhead Beak Sedge Rhynchospora microcephala 44
- Small Pondweed Potamogeton pusillus —
- Small pondweed Potamogeton pusillus subsp. tenuissimus —
- Small Sundrops Oenothera perennis 81
- Small Venus's-looking-glass Triodanis biflora 20
- Small White Aster Symphyotrichum racemosum 93
- Small White Fringed Orchid Platanthera blephariglottis 27
- Small Whorled Pogonia Isotria medeoloides 8
- Small Wood Sunflower Helianthus microcephalus 96
- Small-flower Baby-blue-eyes Nemophila aphylla 8
- Small-flower Fumewort Corydalis micrantha 16
- Small-flower Quickweed Galinsoga parviflora —
- Small-flower Thoroughwort Eupatorium semiserratum 83
- Small-flowered Buckthorn Sageretia minutiflora 10
- Small-flowered Catchfly Silene gallica —
- Small-flowered Crane's-bill Geranium pusillum —
- Small-headed Silkgrass Pityopsis graminifolia var. tenuifolia 74
- Small-leaved Meadow-rue Thalictrum macrostylum 47
- Small's Beaksedge Rhynchospora globularis var. pinetorum 44
- Small's Beardtongue Penstemon smallii 73
- Small's Black-snakeroot Sanicula smallii 15
- Small's Bogbutton Lachnocaulon minus 8
- Small's Purslane Portulaca smallii 59
- Small's Ragwort Packera anonyma 83
- Small's Yellow-eyed-grass Xyris smalliana 29
- Smallanthus uvedalius Smallanthus uvedalius —
- Smaller Forget-me-not Myosotis laxa 36
- Smallflower Blueberry Vaccinium virgatum 98
- Smallflower Buttercup Ranunculus parviflorus —
- Smallflower Halfchaff Sedge Lipocarpha micrantha 8
- Smallflower Hawksbeard Crepis pulchra —
- Smallflower Phacelia Phacelia dubia 48
- Smallfruit Agrimony Agrimonia microcarpa 33
- Smallfruit Beggarticks Bidens mitis 87
- Smallfruit Seedbox Ludwigia microcarpa 58
- Smallfruit Spikerush Eleocharis microcarpa 34
- Smallhead Blazing-star Liatris microcephala 52
- Smallhead Doll's-daisy Boltonia diffusa 23
- Smallhead Marsh-elder Iva microcephala 36
- Smilax tamnoides Smilax tamnoides —
- Smiths Sunflower Helianthus smithii 96
- Smooth Arrow Wood Viburnum recognitum 85
- Smooth Azalea Rhododendron arborescens 90
- Smooth Beggarticks Bidens laevis 91
- Smooth Blackberry Rubus canadensis 98
- Smooth Blackhaw Viburnum prunifolium 88
- Smooth Blue Aster Symphyotrichum laeve 93
- Smooth Brome Bromus inermis —
- Smooth Carrion-flower Smilax herbacea 69
- Smooth Cat's-ear Hypochaeris glabra —
- Smooth Chaff-flower Alternanthera paronychioides —
- Smooth Crabgrass Digitaria ischaemum —
- Smooth Elephant's-foot Elephantopus nudatus 45
- Smooth False-buttonweed Spermacoce glabra 49
- Smooth Forked Nailwort Paronychia canadensis 8
- Smooth Heart Leaf Aster Symphyotrichum lowrieanum 93
- Smooth Hedge-nettle Stachys tenuifolia 56
- Smooth Hydrangea Hydrangea arborescens 58
- Smooth Meadow-parsnip Thaspium trifoliatum 24
- Smooth Oxeye Heliopsis helianthoides 54
- Smooth Phlox Phlox glaberrima 54
- Smooth Pigweed Amaranthus hybridus 68
- Smooth Purple Coneflower Echinacea laevigata 47
- Smooth Rattlebox Crotalaria pallida -30
- Smooth Rockcress Arabis laevigata —
- Smooth Small-leaf Tick-trefoil Desmodium marilandicum 69
- Smooth Solomon's-seal Polygonatum biflorum 19
- Smooth Sumac Rhus glabra 92
- Smooth Sunflower Helianthus laevigatus —
- Smooth Tick-trefoil Desmodium laevigatum 69
- Smooth Wild-petunia Ruellia strepens 43
- Smooth Winterberry Ilex laevigata 97
- Smooth Yellow False Foxglove Aureolaria flava 46
- Smooth Yellow Violet Viola pubescens var. scabriuscula 77
- Smooth-sheath Sedge Carex laevivaginata 58
- Smut-grass Sporobolus indicus —
- Snow-on-the-mountain Euphorbia marginata —
- Snow-white Everlasting Gamochaeta chionesthes —
- Snowy Black Anthers Melanthera nivea —
- Snowy Campion; Evening Campion Silene nivea —
- Snowy Orchid Platanthera nivea 27
- Soapwort Saponaria officinalis —
- Soapwort Gentian Gentiana saponaria 29
- Soft Golden-aster Chrysopsis pilosa 74
- Soft Milkpea Galactia mollis 73
- Soft Rush Juncus effusus —
- Softstem Bulrush Schoenoplectus tabernaemontani 45
- Solanum americanum Solanum americanum —
- Solanum carolinense var. floridanum Solanum carolinense var. floridanum —
- Solanum dimidiatum Solanum dimidiatum —
- Solanum dulcamara var. dulcamara Solanum dulcamara var. dulcamara —
- Solanum lycopersicum var. lycopersicum Solanum lycopersicum var. lycopersicum —
- Solanum nigrescens Solanum nigrescens —
- Solanum pumilum Solanum pumilum —
- Soldier's Orchid Zeuxine strateumatica —
- Solidago arguta var. boottii Solidago arguta var. boottii 90
- Solidago brachyphylla Solidago brachyphylla —
- Solidago odora var. chapmanii Solidago odora var. chapmanii —
- Solidago odora var. odora Solidago odora var. odora —
- Solidago patula var. patula Solidago patula var. patula —
- Solidago puberula var. puberula Solidago puberula var. puberula —
- Solidago radula var. radula Solidago radula var. radula —
- Solidago rugosa subsp. aspera Solidago rugosa subsp. aspera —
- Solidago rugosa subsp. rugosa Solidago rugosa subsp. rugosa —
- Solidago sempervirens Solidago sempervirens 90
- Solidago sempervirens var. mexicana Solidago sempervirens var. mexicana —
- Solidago ulmifolia var. ulmifolia Solidago ulmifolia var. ulmifolia 90
- Sorghastrum secundum Sorghastrum secundum —
- Sorghum Sorghum bicolor —
- Sorghum bicolor subsp. bicolor Sorghum bicolor subsp. bicolor —
- Sour Cherry Prunus cerasus —
- Sourwood Oxydendrum arboreum 59
- South American Mock Vervain Glandularia pulchella —
- South American Skullcap Scutellaria racemosa —
- South American Vervain Verbena bonariensis -30
- Southeastern Cut Leaf Cone Flower Rudbeckia laciniata var. digitata 75
- Southeastern Flowering Spurge Euphorbia pubentissima 65
- Southeastern Seedbox Ludwigia linifolia 58
- Southeastern Slimspike Three-awn Aristida longespica 19
- Southeastern Sneezeweed Helenium pinnatifidum 68
- Southeastern Stiff Goldenrod Oligoneuron rigidum var. glabratum —
- Southeastern Wild-rye Elymus glabriflorus 46
- Southern Adder's-tongue Ophioglossum vulgatum 8
- Southern Arrowwood Viburnum dentatum 85
- Southern Barren-strawberry Waldsteinia fragarioides subsp. doniana 20
- Southern Bayberry Morella caroliniensis 72
- Southern Beaksedge Rhynchospora microcarpa 44
- Southern Beeblossom Gaura angustifolia 81
- Southern Bladderwort Utricularia juncea 22
- Southern Blue Monkshood Aconitum uncinatum 24
- Southern Bluet Houstonia micrantha 35
- Southern Bluethread Burmannia capitata 8
- Southern Bog Clubmoss Lycopodiella appressa 11
- Southern Bogbutton Lachnocaulon beyrichianum 8
- Southern Bracken Pteridium aquilinum var. pseudocaudatum —
- Southern Bush-honeysuckle Diervilla sessilifolia 36
- Southern Carpetgrass; Tropical Carpetgrass; Southern Carpet Grass; Tropical Carpet Grass Axonopus compressus —
- Southern Catalpa Catalpa bignonioides 56
- Southern Cattail Typha domingensis 52
- Southern Coastal Violet Viola septemloba 77
- Southern Crabapple Malus angustifolia 99
- Southern Crabgrass Digitaria ciliaris —
- Southern Cutgrass Leersia hexandra 32
- Southern Dawnflower Stylisma humistrata 23
- Southern Dewberry Rubus trivialis 96
- Southern Elephants Foot; Southern Elephantsfoot Elephantopus elatus —
- Southern Fimbry Fimbristylis decipiens 15
- Southern Flat-top Aster Doellingeria sericocarpoides 75
- Southern Grapefern Botrychium biternatum 11
- Southern Ground-cedar Lycopodium digitatum 11
- Southern Harebell Campanula divaricata 21
- Southern Highbush Blueberry Vaccinium formosum 98
- Southern Horseweed Conyza canadensis var. pusilla 87
- Southern Jointweed Polygonella americana 8
- Southern Lobelia Lobelia amoena 48
- Southern Long Sedge Carex lonchocarpa 58
- Southern Loosestrife Lysimachia tonsa 58
- Southern Magnolia Magnolia grandiflora 73
- Southern Maleberry Lyonia ligustrina var. foliosiflora 73
- Southern Marsh St. John's-wort Triadenum tubulosum 68
- Southern Marsh Yellowcress Rorippa teres —
- Southern Mountain Cranberry Vaccinium erythrocarpum 98
- Southern Mountain Mint Pycnanthemum pycnanthemoides var. pycnanthemoides —
- Southern Mountain Mint Pycnanthemum pycnanthemoides var. viridifolium —
- Southern Mountain-mint Pycnanthemum pycnanthemoides 40
- Southern Nodding Trillium Trillium rugelii 24
- Southern Oconee Bells Shortia galacifolia 8
- Southern Prairie Aster Eurybia hemispherica 65
- Southern Red Cedar Juniperus virginiana var. silicicola 59
- Southern Red Oak Quercus falcata 88
- Southern Rein Orchid Platanthera flava 27
- Southern Rockbell Wahlenbergia marginata —
- Southern Roughleaf Goldenrod Solidago patula var. strictula —
- Southern Sandspur Cenchrus echinatus 49
- Southern Shagbark Hickory Carya carolinae-septentrionalis 74
- Southern Six Weeks Fescue Vulpia octoflora var. octoflora —
- Southern Skullcap Scutellaria parvula var. australis —
- Southern Slender Ladies Tresses Spiranthes lacera var. gracilis 22
- Southern Stoneseed Lithospermum tuberosum —
- Southern Swamp Aster Eurybia paludosa 65
- Southern Swamp Dogwood Cornus foemina 98
- Southern Swamp-lily Crinum americanum —
- Southern Three-awn Aristida simpliciflora —
- Southern Twayblade Listera australis 8
- Southern Watergrass Luziola fluitans 18
- Southern Waternymph Najas guadalupensis 13
- Southern Waxy Sedge Carex glaucescens 58
- Southern Whitetinge Sedge Carex albicans var. australis 58
- Southern Wild-rice Zizaniopsis miliacea 27
- Southern Winged Loosestrife Lythrum alatum var. lanceolatum 59
- Southern Wood-fern Dryopteris ludoviciana 25
- Southern Woodland Violet Viola hirsutula 77
- Soybean Glycine max —
- Spanish-moss Tillandsia usneoides 21
- Spanish-needles Bidens bipinnata 88
- Sparkleberry Vaccinium arboreum 100
- Spartina bakeri Spartina bakeri —
- Spear Orach; Spear Saltbush; Spear Salt Bush Atriplex patula —
- Spearmint Mentha spicata —
- Speckled Wood-lily Clintonia umbellulata 8
- Spergularia echinosperma Spergularia echinosperma —
- Spermacoce assurgens Spermacoce assurgens —
- Spermacoce tenuior Spermacoce tenuior —
- Sphagnum carolinianum Sphagnum carolinianum —
- Sphagnum compactum Sphagnum compactum —
- Sphagnum strictum Sphagnum strictum —
- Spicebush Lindera benzoin var. pubescens —
- Spider Brake Pteris multifida —
- Spiderlily Hymenocallis occidentalis var. occidentalis —
- Spiderwisp Cleome gynandra —
- Spiked Hoary-pea Tephrosia spicata 48
- Spiked Wild Indigo Baptisia albescens 76
- Spineless Hornwort Ceratophyllum echinatum 13
- Spinulose Wood-fern Dryopteris carthusiana 25
- Spiny Amaranth Amaranthus spinosus —
- Spiny Cocklebur Xanthium spinosum —
- Spiraea betulifolia Spiraea betulifolia —
- Spiraea japonica var. fortunei Spiraea japonica var. fortunei —
- Spiranthes brevilabris Spiranthes brevilabris —
- Spirodela polyrrhiza Spirodela polyrrhiza —
- Splitbeard Bluestem Andropogon ternarius 54
- Spoon Shape Barbaras Buttons Marshallia obovata var. obovata 13
- Spoon-shaped Barbara's-buttons Marshallia obovata 13
- Spoonleaf Purple Everlasting Gamochaeta purpurea 32
- Spoonleaf Sundew Drosera intermedia 20
- Sporobolus curtissii Sporobolus curtissii —
- Sporobolus domingensis Sporobolus domingensis —
- Sporobolus floridanus Sporobolus floridanus —
- Sporobolus indicus var. indicus Sporobolus indicus var. indicus —
- Sporobolus indicus var. pyramidalis Sporobolus indicus var. pyramidalis —
- Sporobolus silveanus Sporobolus silveanus —
- Sporobolus vaginiflorus var. vaginiflorus Sporobolus vaginiflorus var. vaginiflorus —
- Spotted Beebalm Monarda punctata 70
- Spotted Coral Root; Summer Coral Root Corallorhiza maculata var. maculata 8
- Spotted Coralroot Corallorhiza maculata 8
- Spotted Jewelweed Impatiens capensis 66
- Spotted Joe Pye Weed Eutrochium maculatum var. maculatum 85
- Spotted Joe-pye-weed Eutrochium maculatum 85
- Spotted Knapweed Centaurea stoebe —
- Spotted Lady's-thumb Polygonum persicaria -55
- Spotted Mandarin Prosartes maculata 8
- Spotted Medick Medicago arabica —
- Spotted Phacelia Phacelia maculata 48
- Spotted Pondweed Potamogeton pulcher 40
- Spotted Spurge Chamaesyce maculata 65
- Spotted St. John's-wort Hypericum punctatum 68
- Spotted Water-hemlock Cicuta maculata 53
- Spotted Wintergreen Chimaphila maculata 27
- Sprawling Hoary-pea Tephrosia hispidula 48
- Spreading Beaksedge Rhynchospora divergens 44
- Spreading Bulrush Scirpus divaricatus 45
- Spreading Bur Parsley Torilis arvensis -30
- Spreading Chervil Chaerophyllum procumbens 11
- Spreading Chervil Chaerophyllum procumbens var. procumbens 8
- Spreading Chinchweed Pectis prostrata —
- Spreading Dogbane Apocynum androsaemifolium 56
- Spreading Rockcress Arabis patens 25
- Spreading Sandmat Chamaesyce humistrata —
- Spreading Sandwort Arenaria lanuginosa 8
- Spreading Sandwort Arenaria lanuginosa var. lanuginosa —
- Spreading Sedge Carex laxiculmis 59
- Spreading Sedge Carex laxiculmis var. laxiculmis 58
- Spreading Spiderling Boerhavia diffusa —
- Spreading Yellow False Foxglove Aureolaria patula —
- Spring Avens Geum vernum 24
- Spring Coralroot Corallorhiza wisteriana 8
- Spring Draba Draba verna —
- Spring Forget-me-not Myosotis verna 36
- Spring Ladies'-tresses Spiranthes vernalis 22
- Spring Vetch Vicia lathyroides —
- Spruce Pine; Walters Pine; Cedar Pine Pinus glabra —
- Spurge-nettle Cnidoscolus urens var. stimulosus 15
- Spurred Butterfly-pea Centrosema virginianum 59
- Squarestem Spikerush Eleocharis quadrangulata 34
- Squarrose Sedge Carex squarrosa 58
- Squirrel Corn Dicentra canadensis 13
- Squirrel Tail Fescue Vulpia elliotea —
- St. Andrew's-cross Hypericum hypericoides 72
- St. Augustine Grass Stenotaphrum secundatum 47
- St. Peter's-wort Hypericum crux-andreae 71
- Staggerbush Lyonia mariana 73
- Staghorn Sumac Rhus typhina 87
- Stalk Grain Sedge; Owlfruit Sedge Carex stipata var. maxima 58
- Stalk Grain Sedge; Owlfruit Sedge Carex stipata var. stipata 58
- Stalked Panicgrass Panicum rigidulum var. elongatum 49
- Stalked Wild Petunia Ruellia pedunculata —
- Stalkless Yellowcress Rorippa sessiliflora 32
- Standing-cypress Ipomopsis rubra 15
- Standleys Goosefoot Chenopodium standleyanum 51
- Star Chickweed Stellaria pubera 64
- Star Tickseed Coreopsis pubescens 65
- Starch Grape-hyacinth Muscari neglectum —
- Starflower Trientalis borealis 58
- Starrush Whitetop Sedge Rhynchospora colorata 44
- Starry Campion Silene stellata 42
- Starry Rosinweed Silphium asteriscus 51
- Starry Rosinweed Silphium asteriscus var. asteriscus 51
- Starved Witchgrass Dichanthelium depauperatum 49
- Steeplebush Spiraea tomentosa 70
- Stellaria media subsp. media Stellaria media subsp. media —
- Stellaria prostrata Stellaria prostrata —
- Stemless Ironweed Vernonia acaulis 75
- Stenandrium dulce Stenandrium dulce —
- Stenandrium dulce var. dulce Stenandrium dulce var. dulce —
- Stenanthium gramineum var. micranthum Stenanthium gramineum var. micranthum —
- Stenaria nigricans var. nigricans Stenaria nigricans var. nigricans —
- Sticky Chickweed Cerastium glomeratum —
- Sticky False-asphodel Triantha glutinosa 8
- Sticky Hedge Hyssop Gratiola brevifolia —
- Sticky Nightshade Solanum sisymbriifolium —
- Stiff Aster Ionactis linariifolius 48
- Stiff Cowbane Oxypolis rigidior 23
- Stiff Marsh Bedstraw Galium tinctorium 55
- Stiff Star-grass Hypoxis rigida —
- Stiff Sunflower; Stiff Sun Flower Helianthus pauciflorus —
- Stiff Tick-trefoil Desmodium obtusum 69
- Stiff Yellow Flax Linum medium —
- Stillingia aquatica Stillingia aquatica —
- Stillingia sylvatica subsp. sylvatica Stillingia sylvatica subsp. sylvatica —
- Stinging Nettle Urtica dioica —
- Stinkgrass Eragrostis cilianensis —
- Stinking Camphorweed Pluchea foetida 68
- Stinking Chamomile* Anthemis cotula —
- Stipulicida setacea var. setacea Stipulicida setacea var. setacea —
- Stokes's Aster Stokesia laevis —
- Stone Mountain-mint Pycnanthemum curvipes 40
- Straggler Daisy; Lawnflower; Horse Herb; Hierba Del Caballo; Stragglerdaisy; Lawn Flower; Horseherb Calyptocarpus vialis —
- Straw-colored Flatsedge Cyperus strigosus 42
- Strawstem Beggarticks Bidens tripartita —
- Streptopus lanceolatus var. roseus Streptopus lanceolatus var. roseus —
- Stringy Stonecrop Sedum sarmentosum —
- Striped Bladderwort Utricularia striata —
- Striped Cream Violet Viola striata 77
- Striped Gentian Gentiana villosa 29
- Striped Maple Acer pensylvanicum 85
- Stylisma patens subsp. angustifolia Stylisma patens subsp. angustifolia —
- Stylisma patens subsp. patens Stylisma patens subsp. patens —
- Stylisma pickeringii var. pickeringii Stylisma pickeringii var. pickeringii 22
- Stylisma villosa Stylisma villosa —
- Stylodon carneus Stylodon carneus —
- Suckling Hop Clover Trifolium dubium —
- Sugar Maple Acer saccharum 85
- Sugar Maple Acer saccharum var. saccharum —
- Sugar Maple Acer saccharum var. schneckii —
- Sugarberry Celtis laevigata 65
- Sugarcane Plumegrass Saccharum giganteum 40
- Sulphur Cinquefoil Potentilla recta —
- Summer Bluet Houstonia purpurea 35
- Summer Farewell Dalea pinnata 72
- Summer Grape Vitis aestivalis 73
- Summer Grape Vitis aestivalis var. aestivalis 73
- Summer Sedge Carex aestivalis 58
- Sun Spurge Euphorbia helioscopia —
- Sun-facing Coneflower Rudbeckia heliopsidis —
- Sundial Lupine Lupinus perennis 77
- Sunfacing Coneflower; Pineywoods Coneflower; Sunfacing Cone Flower; Pineywoods Cone Flower; Sun Facing Coneflower; Piney Woods Coneflower; Sun Facing Cone Flower; Piney Woods Cone Flower Rudbeckia grandiflora —
- Sunfacing Coneflower; Pineywoods Coneflower; Sunfacing Cone Flower; Pineywoods Cone Flower; Sun Facing Coneflower; Piney Woods Coneflower; Sun Facing Cone Flower; Piney Woods Cone Flower Rudbeckia grandiflora var. grandiflora —
- Supplejack Berchemia scandens 20
- Swamp Agrimony Agrimonia parviflora 33
- Swamp Azalea Rhododendron viscosum 90
- Swamp Buttercup Ranunculus hispidus var. nitidus 54
- Swamp Chestnut Oak Quercus michauxii 88
- Swamp Cottonwood Populus heterophylla 67
- Swamp Dewberry Rubus hispidus 95
- Swamp Dock Rumex verticillatus 52
- Swamp Hornpod Mitreola sessilifolia 13
- Swamp Jessamine Gelsemium rankinii 14
- Swamp Leatherflower Clematis crispa 48
- Swamp Loosestrife Decodon verticillatus 49
- Swamp Lousewort Pedicularis lanceolata 43
- Swamp Milkweed Asclepias incarnata 71
- Swamp Pink Helonias bullata 8
- Swamp Redbay Persea palustris 73
- Swamp Rose Rosa palustris 76
- Swamp Rosemallow Hibiscus moscheutos 78
- Swamp Smartweed Polygonum hydropiperoides 78
- Swamp Thistle Cirsium muticum 89
- Swamp Tupelo Nyssa biflora 74
- Swamp Wedgescale Sphenopholis pensylvanica 8
- Swamp-candles Lysimachia terrestris 58
- Swamp-forest Beaksedge Rhynchospora decurrens 44
- Swan's Sedge Carex swanii 58
- Sweet Birch Betula lenta 74
- Sweet Crabapple Malus coronaria 99
- Sweet Goldenrod Solidago odora 90
- Sweet Indian-plantain Hasteola suaveolens 8
- Sweet Joe-pye-weed Eutrochium purpureum 88
- Sweet Mock-orange Philadelphus coronarius —
- Sweet Pinesap Monotropsis odorata 8
- Sweet Pitcherplant Sarracenia rubra 42
- Sweet Scented Joe Pye Weed Eutrochium purpureum var. purpureum 85
- Sweet Tanglehead Heteropogon melanocarpus —
- Sweet Vernal-grass Anthoxanthum odoratum -30
- Sweet White Trillium Trillium simile 24
- Sweet White Violet Viola blanda 77
- Sweet William Dianthus barbatus —
- Sweet William Catchfly Silene armeria —
- Sweet Woodreed Cinna arundinacea 11
- Sweet-fern Comptonia peregrina 46
- Sweetbay Magnolia Magnolia virginiana 73
- Sweetbrier Rose Rosa rubiginosa —
- Sweetgum Liquidambar styraciflua 71
- Sweetshrub Calycanthus floridus 24
- Sweetshrub; Carolina Allspice; Sweet Bubbybush Calycanthus floridus var. floridus —
- Sweetshrub; Carolina Allspice; Sweet Bubbybush Calycanthus floridus var. glaucus —
- Switch Cane Arundinaria tecta 45
- Switchgrass Panicum virgatum 49
- Swollen Bladderwort Utricularia inflata 22
- Sword Ground-cherry Physalis lanceolata 73
- Sword-leaf Witchgrass Dichanthelium dichotomum var. ensifolium 49
- Symphyotrichum adnatum Symphyotrichum adnatum —
- Symphyotrichum bahamense Symphyotrichum bahamense —
- Symphyotrichum dumosum var. gracilipes Symphyotrichum dumosum var. gracilipes —
- Symphyotrichum dumosum var. subulifolium Symphyotrichum dumosum var. subulifolium —
- Symphyotrichum laeve var. concinnum Symphyotrichum laeve var. concinnum —
- Symphyotrichum laeve var. laeve Symphyotrichum laeve var. laeve —
- Symphyotrichum laeve var. purpuratum Symphyotrichum laeve var. purpuratum —
- Symphyotrichum lateriflorum var. lateriflorum Symphyotrichum lateriflorum var. lateriflorum —
- Symphyotrichum priceae Symphyotrichum priceae —
T
- Table Mountain Pine Pinus pungens 74
- Taiwanese Redtip Photinia serratifolia —
- Tall Beggarticks Bidens vulgata 87
- Tall Bellflower Campanulastrum americanum 36
- Tall Blue Wild Indigo Baptisia australis 76
- Tall Buttercup Ranunculus acris —
- Tall False Hawksbeard Youngia thunbergiana —
- Tall Fescue Schedonorus arundinaceus -30
- Tall Flat Top Aster Doellingeria umbellata var. umbellata —
- Tall Flat-top Aster Doellingeria umbellata 75
- Tall Goldenrod Solidago altissima 90
- Tall Hairy Agrimony Agrimonia gryposepala 33
- Tall Hawkweed Hieracium piloselloides —
- Tall Horned Beaksedge Rhynchospora macrostachya 44
- Tall Jointweed Polygonella gracilis —
- Tall Lespedeza Lespedeza stuevei 70
- Tall Meadow-rue Thalictrum pubescens 47
- Tall Oatgrass Arrhenatherum elatius —
- Tall Pinebarren Milkwort Polygala cymosa —
- Tall Rattlesnake-root Prenanthes altissima 48
- Tall Redtop Tridens flavus 32
- Tall Thimbleweed Anemone virginiana 28
- Tall Thistle Cirsium altissimum 90
- Tall Thoroughwort Eupatorium altissimum 86
- Tall Tick-trefoil Desmodium glabellum 69
- Tall Tickseed Coreopsis tripteris 68
- Tall Yellow-eyed-grass Xyris platylepis 29
- Tamarix tetragyna Tamarix tetragyna —
- Tansy Mustard Descurainia pinnata 29
- Tansy Rosinweed Silphium pinnatifidum —
- Tapered Leaf Witch Grass Dichanthelium acuminatum var. acuminatum 49
- Taperleaf Bugleweed Lycopus rubellus 30
- Tapertip Cup Grass Eriochloa acuminata —
- Tapertip Cup Grass; Southwestern Cup Grass Eriochloa acuminata var. acuminata —
- Tapertip Flatsedge Cyperus acuminatus 42
- Tapertip Rush Juncus acuminatus 41
- Taraxacum officinale subsp. officinale Taraxacum officinale subsp. officinale —
- Tarheel Sedge Carex austrocaroliniana 58
- Taro Colocasia esculenta -15
- Tassel Grape Hyacinth Muscari comosum —
- Tatarian Aster Aster tataricus —
- Tawny Cottongrass Eriophorum virginicum 12
- Taylor's Filmy-fern Hymenophyllum tayloriae 8
- TBD Quercus shumardii var. schneckii —
- Teal Lovegrass Eragrostis hypnoides 32
- Ten Angled Pipewort; Hat Pin; Bog Button Eriocaulon decangulare var. decangulare —
- Ten-angle Pipewort Eriocaulon decangulare 14
- Ten-petal Anemone Anemone berlandieri 28
- Tennessee Bladder Fern Cystopteris tennesseensis 8
- Tennessee Glade Cress Leavenworthia exigua —
- Tennessee Glade Cress Leavenworthia exigua var. exigua —
- Tennessee Ironweed Vernonia flaccidifolia —
- Tennessee Leafcup Polymnia laevigata —
- Tennessee Yellow Eyed Grass Xyris tennesseensis —
- Tephrosia chrysophylla Tephrosia chrysophylla —
- Tephrosia mohrii Tephrosia mohrii —
- Terrestrial Water-starwort Callitriche terrestris 11
- Tetragonia tetragonioides Tetragonia tetragonioides —
- Teucrium canadense var. hypoleucum Teucrium canadense var. hypoleucum —
- Texas Bluegrass Poa arachnifera —
- Texas Pipewort Eriocaulon texense 14
- Texas Sedge Carex texensis 58
- Texas Signal-grass Urochloa texana —
- Texas Vervain Verbena halei —
- Thalia geniculata Thalia geniculata —
- Thalictrum debile Thalictrum debile —
- Thelypteris hispidula var. versicolor Thelypteris hispidula var. versicolor —
- Thelypteris ovata Thelypteris ovata —
- Thelypteris ovata var. ovata Thelypteris ovata var. ovata —
- Thicket Bean Phaseolus polystachios 70
- Thicket Sedge Carex abscondita 58
- Thickleaf Meadow-rue Thalictrum coriaceum 47
- Thimble Weed; Tall Anemone Anemone virginiana var. virginiana —
- Thin Crowngrass Paspalum setaceum 67
- Thinleaf Late Purple Aster Symphyotrichum phlogifolium 93
- Thinleaf Mountain-mint Pycnanthemum montanum 40
- Thinleaf Sunflower Helianthus decapetalus 96
- Thinopyrum intermedium Thinopyrum intermedium —
- Thorne's Beaksedge Rhynchospora thornei 44
- Thorny Olive Elaeagnus pungens -55
- Thread Stalk Beeblossom Gaura filipes 8
- Threadleaf Arrowhead Sagittaria filiformis 58
- Threadleaf Beaksedge Rhynchospora filifolia 44
- Threadleaf False Foxglove Agalinis setacea 54
- Threadleaf Sundrops Oenothera linifolia 81
- Three Birds Orchid Triphora trianthophora 8
- Three Way Sedge; Threeway Sedge Dulichium arundinaceum var. arundinaceum —
- Three-angle Spikerush Eleocharis tricostata 34
- Three-flower Melicgrass Melica nitens 8
- Three-rib Arrowgrass Triglochin striata 12
- Three-toothed Cinquefoil Sibbaldiopsis tridentata 68
- Three-way Sedge Dulichium arundinaceum 8
- Threepart Violet Viola tripartita 77
- Thunberg's Lespedeza Lespedeza thunbergii -30
- Thunberg's Meadowsweet Spiraea thunbergii —
- Thyme-leaf Pinweed Lechea minor 22
- Thymeleaf Bluet Houstonia serpyllifolia 35
- Thymeleaf Speedwell Veronica serpyllifolia —
- Thymus praecox subsp. arcticus Thymus praecox subsp. arcticus —
- Tiarella cordifolia var. austrina Tiarella cordifolia var. austrina —
- Tiarella cordifolia var. collina Tiarella cordifolia var. collina —
- Tiarella cordifolia var. cordifolia Tiarella cordifolia var. cordifolia —
- Tievine Ipomoea cordatotriloba 83
- Tillandsia bartramii Tillandsia bartramii —
- Tillandsia fasciculata Tillandsia fasciculata —
- Tillandsia fasciculata var. fasciculata Tillandsia fasciculata var. fasciculata —
- Tillandsia setacea Tillandsia setacea —
- Tillandsia utriculata Tillandsia utriculata —
- Tinted Spurge Euphorbia commutata 65
- Tiny Bluet Houstonia pusilla 35
- Tiny Mousetail Myosurus minimus 8
- Tiny Vetch Vicia hirsuta —
- Titi Cyrilla racemiflora 45
- Toad Rush Juncus bufonius 41
- Tooth Leaf Croton; Sand Croton Croton glandulosus var. septentrionalis —
- Tooth-leaved Croton Croton glandulosus —
- Toothache Grass Ctenium aromaticum 8
- Toothed Flatsedge Cyperus dentatus 42
- Toothed Medick Medicago polymorpha —
- Toothed Rosinweed Silphium asteriscus var. laevicaule —
- Toothed Spurge Euphorbia dentata 65
- Toothed Whitetop Aster Sericocarpus asteroides 48
- Topsy Blackberry; Chesapeake Blackberry; Topsy Black Berry; Chesapeake Black Berry Rubus laudatus —
- Torilis arvensis subsp. arvensis Torilis arvensis subsp. arvensis —
- Torpedo Grass Panicum repens -15
- Torrey's Beaksedge Rhynchospora torreyana 44
- Torrey's Pinweed Lechea torreyi 22
- Torreyochloa pallida var. pallida Torreyochloa pallida var. pallida —
- Torreys Rush Juncus torreyi 41
- Tough Bumelia Sideroxylon tenax 73
- Tower Mustard Arabis glabra 25
- Toxicodendron radicans subsp. radicans Toxicodendron radicans subsp. radicans —
- Tracy's Beaksedge Rhynchospora tracyi 44
- Tracy's Bluestem Andropogon tracyi —
- Tradescantia fluminensis Tradescantia fluminensis —
- Tradescantia roseolens Tradescantia roseolens —
- Tragia smallii Tragia smallii —
- Trailing Arbutus Epigaea repens 37
- Trailing Fuzzy-bean Strophostyles helvola 56
- Trailing Lespedeza Lespedeza procumbens 71
- Trailing Pearlwort Sagina decumbens 8
- Trailing Phlox Phlox nivalis 52
- Trautvetteria caroliniensis var. caroliniensis Trautvetteria caroliniensis var. caroliniensis —
- Tree Ground-pine Lycopodium obscurum 11
- Tree-of-heaven Ailanthus altissima -95
- Tribulus cistoides Tribulus cistoides —
- Tridens flavus var. flavus Tridens flavus var. flavus —
- Trientalis borealis subsp. borealis Trientalis borealis subsp. borealis —
- Trifoliate Orange Poncirus trifoliata -55
- Trifolium fragiferum Trifolium fragiferum —
- Trifolium subterraneum Trifolium subterraneum —
- Trillium decipiens Trillium decipiens —
- Trillium persistens Trillium persistens —
- Trillium reliquum Trillium reliquum —
- Trillium underwoodii Trillium underwoodii —
- Tristagma uniflorum Tristagma uniflorum —
- Triumfetta semitriloba Triumfetta semitriloba —
- Tropical Flatsedge Cyperus surinamensis 42
- Tropical Mexican-clover Richardia brasiliensis —
- Tropical Soda-apple Solanum viarum -55
- Tropical Water-hyssop Bacopa innominata —
- True Forget-me-not Myosotis scorpioides —
- Trumpet-creeper Campsis radicans 46
- Tuberous Grass Pink Calopogon tuberosus var. tuberosus 12
- Tuberous Grass-pink Calopogon tuberosus 12
- Tufted Bulrush Trichophorum cespitosum 45
- Tufted or Desert Love Grass Eragrostis pectinacea 32
- Tufted or Desert Love Grass Eragrostis pectinacea var. pectinacea —
- Tufted Vetch Vicia cracca —
- Tuliptree Liriodendron tulipifera 66
- Tumble Mustard Sisymbrium altissimum —
- Tuna Cactus Opuntia ficus-indica —
- Tung-oil Tree Vernicia fordii -15
- Turgid Blazing-star Liatris turgida —
- Turk's-cap Lily Lilium superbum 47
- Turkey Oak Quercus laevis 88
- Tussock Sedge Carex stricta 58
- Twig-rush Cladium mariscoides 29
- Twining Screwstem Bartonia paniculata 8
- Twinleaf Jeffersonia diphylla 9
- Twisted Sedge Carex torta 58
- Twisted Spikerush Eleocharis tortilis 34
- Twisted-hair Spikemoss Selaginella tortipila —
- Twistleaf Goldenrod Solidago tortifolia 90
- Two-flower Dwarf-dandelion Krigia biflora 25
- Two-flower Melicgrass Melica mutica 8
- Two-headed Water-starwort Callitriche heterophylla 11
- Two-leaved Toothwort Cardamine diphylla 51
- Twoleaf Miterwort Mitella diphylla 11
- Twowing Silverbell; Twowingged Silverbell; Two Wing Silverbell; Two Wingged Silverbell; Twowing Silver Bell; Twowingged Silver Bell; Two Wing Silver Bell; Two Wingged Silver Bell Halesia diptera —
U
- Umbrella Magnolia Magnolia tripetala 72
- Umbrella-leaf Diphylleia cymosa 8
- Upland Bentgrass Agrostis perennans 44
- Upland Boneset Eupatorium sessilifolium 85
- Upland Boneset Eupatorium sessilifolium var. sessilifolium 83
- Upland Dwarf Iris Iris verna var. smalliana 57
- Upland Redbay Persea borbonia 73
- Upland Swamp Privet Forestiera ligustrina —
- Upland Willow Salix humilis var. humilis —
- Upright Burhead Echinodorus berteroi —
- Upright Carrion Flower Smilax ecirrhata —
- Upright Prairie Coneflower Ratibida columnifera —
- Urochloa maxima Urochloa maxima —
- Urochloa plantaginea Urochloa plantaginea —
- Urtica dioica subsp. dioica Urtica dioica subsp. dioica —
- Uvularia floridana Uvularia floridana —
V
- Vaccinium caesariense Vaccinium caesariense 98
- Vaccinium crassifolium subsp. crassifolium Vaccinium crassifolium subsp. crassifolium —
- Vaccinium darrowii Vaccinium darrowii —
- Vaccinium myrsinites Vaccinium myrsinites —
- Vahl's Fimbry Fimbristylis vahlii 15
- Valdivia Duckweed Lemna valdiviana 31
- Valley Head Hawthorn Crataegus austromontana —
- Variable Flatsedge Cyperus difformis —
- Variable Witchgrass Dichanthelium commutatum 50
- Variable-leaf Heartleaf Hexastylis heterophylla 19
- Variable-leaf Water-milfoil Myriophyllum heterophyllum 36
- Variableleaf Sunflower Helianthus heterophyllus 96
- Vasevine Leatherflower Clematis viorna 48
- Vasey-grass Paspalum urvillei -30
- Vasey's Trillium Trillium vaseyi 24
- Veined Skullcap Scutellaria nervosa 37
- Veiny Lined Aster Symphyotrichum praealtum var. praealtum —
- Veiny Pea Lathyrus venosus 70
- Velvet Witchgrass Dichanthelium scoparium 49
- Velvetleaf Abutilon theophrasti —
- Velvetleaf Milkweed Asclepias tomentosa —
- Velvety Tick-trefoil Desmodium viridiflorum 69
- Venus'-comb Scandix pecten-veneris —
- Venus's-hair Fern Adiantum capillus-veneris 15
- Verbena hastata var. hastata Verbena hastata var. hastata —
- Verbena litoralis Verbena litoralis —
- Verbena officinalis var. officinalis Verbena officinalis var. officinalis —
- Verbena urticifolia var. urticifolia Verbena urticifolia var. urticifolia —
- Verbesina aristata Verbesina aristata —
- Verbesina encelioides subsp. encelioides Verbesina encelioides subsp. encelioides —
- Verbesina heterophylla Verbesina heterophylla —
- Verbesina virginica var. laciniata Verbesina virginica var. laciniata —
- Vernonia angustifolia subsp. angustifolia Vernonia angustifolia subsp. angustifolia —
- Vernonia angustifolia subsp. mohrii Vernonia angustifolia subsp. mohrii —
- Vernonia angustifolia subsp. scaberrima Vernonia angustifolia subsp. scaberrima —
- Vernonia gigantea subsp. gigantea Vernonia gigantea subsp. gigantea —
- Vernonia gigantea subsp. ovalifolia Vernonia gigantea subsp. ovalifolia —
- Vernonia pulchella Vernonia pulchella —
- Veronica officinalis var. officinalis Veronica officinalis var. officinalis —
- Veronica peregrina subsp. peregrina Veronica peregrina subsp. peregrina —
- Veronica peregrina subsp. xalapensis Veronica peregrina subsp. xalapensis —
- Veronica serpyllifolia subsp. serpyllifolia Veronica serpyllifolia subsp. serpyllifolia —
- Viburnum nudum var. nudum Viburnum nudum var. nudum —
- Viburnum obovatum Viburnum obovatum —
- Vicia acutifolia Vicia acutifolia —
- Vicia articulata Vicia articulata —
- Vicia cracca subsp. cracca Vicia cracca subsp. cracca —
- Vicia floridana Vicia floridana —
- Vicia ludoviciana Vicia ludoviciana —
- Vicia ludoviciana subsp. leavenworthii Vicia ludoviciana subsp. leavenworthii —
- Vicia pannonica Vicia pannonica —
- Vicia sativa subsp. nigra Vicia sativa subsp. nigra —
- Vicia sativa subsp. sativa Vicia sativa subsp. sativa —
- Vicia villosa subsp. varia Vicia villosa subsp. varia —
- Vicia villosa subsp. villosa Vicia villosa subsp. villosa —
- Viola blanda var. blanda Viola blanda var. blanda —
- Viola canadensis var. canadensis Viola canadensis var. canadensis 77
- Viola lanceolata subsp. lanceolata Viola lanceolata subsp. lanceolata —
- Viola lanceolata subsp. vittata Viola lanceolata subsp. vittata —
- Viola macloskeyi Viola macloskeyi —
- Viola macloskeyi subsp. pallens Viola macloskeyi subsp. pallens —
- Viola triloba Viola triloba —
- Viola triloba var. dilatata Viola triloba var. dilatata —
- Viola triloba var. triloba Viola triloba var. triloba —
- Violet Crabgrass Digitaria violascens —
- Violet Lespedeza Lespedeza frutescens 70
- Violet Woodsorrel Oxalis violacea 60
- Viperina Zornia bracteata 16
- Virginia Bluebells Mertensia virginica 30
- Virginia Bugleweed Lycopus virginicus 30
- Virginia Bunchflower Veratrum virginicum 30
- Virginia Buttonweed Diodia virginiana 22
- Virginia Chain-fern Woodwardia virginica 25
- Virginia Creeper Parthenocissus quinquefolia 72
- Virginia Dayflower Commelina virginica 53
- Virginia Dwarf-dandelion Krigia virginica 25
- Virginia False Gromwell Onosmodium virginianum —
- Virginia Ground-cherry Physalis virginiana 73
- Virginia Heartleaf Hexastylis virginica 19
- Virginia Iris Iris virginica 57
- Virginia Marsh St. John's-wort Triadenum virginicum 68
- Virginia Meadow-beauty Rhexia virginica 43
- Virginia Mountain-mint Pycnanthemum virginianum 43
- Virginia Nailwort Paronychia virginica —
- Virginia Pennywort Obolaria virginica 8
- Virginia Peppergrass Lepidium virginicum 59
- Virginia Peppergrass Lepidium virginicum var. virginicum 56
- Virginia Pine Pinus virginiana 74
- Virginia Plantain Plantago virginica 69
- Virginia Rose Rosa virginiana 76
- Virginia Snakeroot Aristolochia serpentaria 20
- Virginia Spiderwort Tradescantia virginiana 57
- Virginia Spiraea Spiraea virginiana 70
- Virginia Spring-beauty Claytonia virginica 34
- Virginia Springbeauty; Virginia Spring Beauty Claytonia virginica var. acutiflora —
- Virginia Springbeauty; Virginia Spring Beauty Claytonia virginica var. virginica —
- Virginia Stickseed Hackelia virginiana 14
- Virginia Sweetspire Itea virginica 33
- Virginia Thistle Cirsium virginianum 89
- Virginia Threeseed Mercury Acalypha virginica 36
- Virginia Virgin's-bower Clematis virginiana 50
- Virginia Wild-rye Elymus virginicus 46
- Virginia Yellow Flax Linum virginianum 44
- Virginia-cress Sibara virginica 8
- Vitis cinerea Vitis cinerea 73
- Vitis cinerea var. baileyana Vitis cinerea var. baileyana —
- Vitis cinerea var. floridana Vitis cinerea var. floridana —
- Vitis rotundifolia var. munsoniana Vitis rotundifolia var. munsoniana —
- Vitis rotundifolia var. rotundifolia Vitis rotundifolia var. rotundifolia —
- Viviparous Spikerush Eleocharis vivipara 34
W
- Wafer Ash; Hop Tree Ptelea trifoliata var. mollis 37
- Wafer Ash; Hop Tree Ptelea trifoliata var. trifoliata —
- Waldsteinia fragarioides subsp. fragarioides Waldsteinia fragarioides subsp. fragarioides —
- Walking Fern Asplenium rhizophyllum 15
- Wall Bedstraw Galium divaricatum —
- Wall Rue; Wallrue; American Wall Rue; American Wallrue Asplenium ruta-muraria var. cryptolepis 15
- Wall-rue Spleenwort Asplenium ruta-muraria 15
- Walter's Aster Symphyotrichum walteri 93
- Walter's Sedge Carex striata 58
- Wand Blazing-star Liatris virgata 52
- Wand Lespedeza Lespedeza violacea 70
- Wand Loosestrife Lythrum lineare —
- Wand Mullein Verbascum virgatum —
- Wand-like Three-awn Aristida purpurascens var. virgata 19
- Ware's Hairsedge Bulbostylis warei 8
- Warea sessilifolia Warea sessilifolia —
- Warty Panicgrass Panicum verrucosum 49
- Warty Sedge Carex verrucosa 58
- Warty Spurge Euphorbia spathulata 65
- Washington Hawthorn Crataegus phaenopyrum 83
- Water Cowbane Oxypolis filiformis 27
- Water Dawnflower Stylisma aquatica 22
- Water Hemlock Cicuta maculata var. maculata —
- Water Hickory Carya aquatica 74
- Water Lettuce Pistia stratiotes —
- Water Locust Gleditsia aquatica —
- Water Mint Mentha aquatica —
- Water Oak Quercus nigra 88
- Water Purslane Didiplis diandra 8
- Water Speedwell Veronica anagallis-aquatica 47
- Water Stargrass Heteranthera dubia 12
- Water Tupelo Nyssa aquatica 74
- Water-grass Bulbostylis barbata —
- Water-plantain Spearwort Ranunculus ambigens 51
- Water-shield Brasenia schreberi 35
- Water-spider Orchid Habenaria repens 15
- Watercress Nasturtium officinale -30
- Watermelon Citrullus lanatus —
- Waterpod Hydrolea quadrivalvis 14
- Waterthread Pondweed Potamogeton diversifolius 40
- Wavy Hairgrass Deschampsia flexuosa 12
- Wavyleaf Aster Symphyotrichum undulatum 93
- Wavyleaf Noseburn Tragia urens 12
- Wavyleaf Purple Coneflower Echinacea simulata 47
- Waxyleaf Meadow-rue Thalictrum revolutum 47
- Weak Rush Juncus debilis 41
- Weak Stellate Sedge Carex seorsa 58
- Weakleaf Yucca Yucca flaccida 55
- Weatherby's Arrowhead Sagittaria graminea var. weatherbiana —
- Websteria confervoides Websteria confervoides —
- Wedgeleaf Thoroughwort Eupatorium glaucescens —
- Weeping Lovegrass Eragrostis curvula -15
- Weeping Willow Salix babylonica —
- Weft Fern Trichomanes intricatum —
- West Indian Meadow-beauty Rhexia cubensis 43
- Western Daisy Astranthium integrifolium 13
- Western Rose Mallow Hibiscus lasiocarpos —
- Western Rough Goldenrod Solidago radula 90
- Western Sampson's-snakeroot Orbexilum pedunculatum 34
- Western Sunflower Helianthus occidentalis 96
- Western Witch Grass Dichanthelium acuminatum var. fasciculatum 49
- Whip Nutrush Scleria triglomerata 12
- Whiskfern Psilotum nudum 8
- White Amaranth Amaranthus albus —
- White Arrow-arum Peltandra sagittifolia 8
- White Arrowleaf Aster Symphyotrichum urophyllum 93
- White Ash Fraxinus americana 75
- White Avens Geum canadense 25
- White Baneberry Actaea pachypoda 30
- White Beaksedge Rhynchospora alba 44
- White Bear Sedge Carex albursina 58
- White Beggar Ticks Bidens alba var. radiata —
- White Bergamot Monarda clinopodia 70
- White Blue-eyed-grass Sisyrinchium albidum 16
- White Campion Silene latifolia —
- White Clover Trifolium repens —
- White Colicroot Aletris farinosa 14
- White Crownbeard Verbesina virginica 80
- White Cutgrass Leersia virginica 32
- White Doll's-daisy Boltonia asteroides 27
- White Edged Flat Sedge Cyperus flavicomus 42
- White Fringeless Orchid Platanthera integrilabia 27
- White Goldenrod Solidago bicolor 90
- White Hair Witchgrass Dichanthelium villosissimum var. villosissimum 49
- White Heath Aster Symphyotrichum ericoides 93
- White Heath Aster; Squarrose White Aster Symphyotrichum ericoides var. ericoides 93
- White Leaf Leather Flower Clematis glaucophylla —
- White Leaf Mountain Mint Pycnanthemum albescens 40
- White Milkweed Asclepias variegata 67
- White Morning-glory Ipomoea lacunosa 83
- White Mulberry Morus alba -55
- White Mustard Sinapis arvensis —
- White Mustard; Charlock Mustard; Yellow Mustard Sinapis arvensis subsp. arvensis —
- White Oak Quercus alba 88
- White Panicle Aster Symphyotrichum lanceolatum 93
- White Panicled Aster; Eastern Lined Aster Symphyotrichum lanceolatum subsp. lanceolatum —
- White Panicled Aster; Eastern Lined Aster Symphyotrichum lanceolatum var. latifolium —
- White Poplar Populus alba —
- White Prairie Clover Dalea candida —
- White Sagebrush Artemisia ludoviciana —
- White Screwstem Bartonia verna 8
- White Snakeroot Ageratina altissima 85
- White Spikerush Eleocharis albida 34
- White Thoroughwort Eupatorium album 83
- White Trout Lily Erythronium albidum —
- White Turtlehead Chelone glabra 33
- White Vervain Verbena urticifolia 77
- White Wild Indigo Baptisia alba 76
- White Willow Salix alba —
- White Wood-aster Eurybia divaricata 65
- White-bracted Thoroughwort Eupatorium leucolepis 83
- White-edge Sedge Carex debilis 58
- White-edge Witchgrass Dichanthelium dichotomum var. tenue 49
- White-flowered Leafcup Polymnia canadensis 13
- White-nymph Trepocarpus aethusae 8
- Whiteflowered Petunia Petunia axillaris —
- Whitehair Witchgrass Dichanthelium villosissimum 49
- Whitehead Bogbutton Lachnocaulon anceps 8
- Whiteleaf Sunflower Helianthus glaucophyllus 96
- Whitemouth Dayflower Commelina erecta var. erecta 53
- Whiteroot Rush Juncus brachycarpus 41
- Whitetinge Sedge Carex albicans 58
- Whitetinge Sedge Carex albicans var. albicans 58
- Whitetop Pitcherplant Sarracenia leucophylla —
- Whorled Horsebalm Collinsonia verticillata 29
- Whorled Loosestrife Lysimachia quadrifolia 58
- Whorled Milkweed Asclepias verticillata 72
- Whorled Milkwort Polygala verticillata —
- Whorled Milkwort; Whorled Milk Wort Polygala verticillata var. isocycla —
- Whorled Milkwort; Whorled Milk Wort Polygala verticillata var. verticillata —
- Whorled Mountain-mint Pycnanthemum verticillatum —
- Whorled Rosinweed Silphium trifoliatum 51
- Whorled Sunflower Helianthus verticillatus —
- Whorled Tickseed Coreopsis verticillata 65
- Whorled Wood-aster Oclemena acuminata 56
- Wideflower Phlox Phlox latifolia —
- Wideleaf Eastern Bluestar Amsonia tabernaemontana var. tabernaemontana 25
- Widgeon-grass Ruppia maritima 13
- Widow Sedge Carex basiantha 58
- Widowscross Sedum pulchellum —
- Wild Bergamot Monarda fistulosa 73
- Wild Bleeding-heart Dicentra eximia 13
- Wild Blue Phlox Phlox divaricata 54
- Wild Comfrey Cynoglossum virginianum 29
- Wild Cucumber Echinocystis lobata 22
- Wild Dock Rumex hastatulus 52
- Wild Field Pansy Viola bicolor —
- Wild Geranium Geranium maculatum 80
- Wild Goose Plum Prunus munsoniana 100
- Wild Hyacinth Camassia scilloides 17
- Wild Leek Allium ampeloprasum —
- Wild Olive Osmanthus americanus —
- Wild Pink Silene caroliniana 42
- Wild Poinsettia Euphorbia cyathophora 65
- Wild Potato-vine Ipomoea pandurata 84
- Wild Quinine; Feverfew Parthenium integrifolium var. integrifolium 69
- Wild Radish Raphanus raphanistrum —
- Wild Sarsaparilla Aralia nudicaulis 65
- Wild Strawberry Fragaria virginiana 81
- Willow Oak Quercus phellos 88
- Willowleaf Aster Symphyotrichum praealtum 93
- Willowleaf Lettuce Lactuca saligna —
- Willowleaf Meadowsweet Spiraea salicifolia —
- Wineberry Rubus phoenicolasius -55
- Winged Burning-bush Euonymus alatus -55
- Winged Elm Ulmus alata 76
- Winged Seedbox Ludwigia alata 58
- Winged Sumac Rhus copallinum 90
- Wingleaf Primrose-willow Ludwigia decurrens 58
- Wingstem Verbesina alternifolia 80
- Winter Bentgrass Agrostis hyemalis 44
- Winter Grapefern Botrychium lunarioides 11
- Winter Honeysuckle Lonicera fragrantissima -55
- Winter Jasmine Jasminum nudiflorum —
- Winter-creeper Euonymus fortunei -55
- Wire Sedge Carex tenax 58
- Wireleaf Dropseed Sporobolus teretifolius 36
- Wirestem Muhly Muhlenbergia frondosa 27
- Wiry Panicgrass Panicum flexile 49
- Witherod Viburnum Viburnum nudum var. cassinoides 85
- Wolf's Spikerush Eleocharis wolfii 34
- Wood Anemone Anemone quinquefolia 29
- Wood Lily Lilium philadelphicum 46
- Wood Lily Lilium philadelphicum var. philadelphicum 46
- Woodland Agrimony Agrimonia rostellata 33
- Woodland Bittercress Cardamine flexuosa —
- Woodland Bluegrass Poa sylvestris 59
- Woodland Bulrush Scirpus expansus 45
- Woodland Lettuce Lactuca floridana 89
- Woodland Muhly Muhlenbergia sylvatica 27
- Woodland Rush Juncus subcaudatus 41
- Woodland Stonecrop Sedum ternatum 52
- Woodland Sunflower Helianthus divaricatus 99
- Woodsia obtusa subsp. obtusa Woodsia obtusa subsp. obtusa —
- Woody Goldenrod Chrysoma pauciflosculosa 97
- Woolgrass Bulrush Scirpus cyperinus 45
- Woolly Chaffhead Carphephorus tomentosus 40
- Woolly Croton Croton capitatus 74
- Woolly Dutchman's-pipe Aristolochia tomentosa —
- Woolly Fimbry Fimbristylis tomentosa —
- Woolly Lipfern Cheilanthes tomentosa 8
- Woolly Plantain Plantago patagonica —
- Woolly Ragwort Packera tomentosa —
- Woolly Sunbonnets Chaptalia tomentosa 13
- Woolly Witchgrass Dichanthelium acuminatum 49
- Woolly Witchgrass Dichanthelium scabriusculum 49
- Woollysheath Three-awn Aristida lanosa 19
- Wretched Sedge Carex misera 58
- Wright's Beaksedge Rhynchospora wrightiana 44
- Wright's Plantain Plantago wrightiana —
- Wright's Witchgrass Dichanthelium wrightianum 49
- Wrinkle Leaf Goldenrod; Rough Leaf Goldenrod Solidago rugosa var. rugosa 90
- Wrinkle-leaf Goldenrod Solidago rugosa 90
- Wrinkled Joint Grass Coelorachis rugosa —
X
- Xanthium strumarium Xanthium strumarium —
- Xanthium strumarium var. canadense Xanthium strumarium var. canadense —
- Xanthium strumarium var. glabratum Xanthium strumarium var. glabratum —
- Xylosma congestum Xylosma congestum —
- Xyris difformis var. difformis Xyris difformis var. difformis —
- Xyris drummondii Xyris drummondii —
- Xyris elliottii Xyris elliottii —
- Xyris laxifolia Xyris laxifolia —
- Xyris louisianica Xyris louisianica —
Y
- Yankeeweed Eupatorium compositifolium 83
- Yaupon Black-senna Seymeria cassioides 29
- Yaupon Holly Ilex vomitoria 97
- Yeatesia viridiflora Yeatesia viridiflora —
- Yellow Avens Geum aleppicum 23
- Yellow Birch Betula alleghaniensis 74
- Yellow Bristlegrass Setaria pumila -30
- Yellow Buckeye Aesculus flava 71
- Yellow Butterwort Pinguicula lutea 8
- Yellow Colicroot Aletris lutea 14
- Yellow Crownbeard Verbesina occidentalis 80
- Yellow Flatsedge Cyperus flavescens 42
- Yellow Fringeless Orchid Platanthera integra 27
- Yellow Fumewort Corydalis flavula 17
- Yellow Giant-hyssop Agastache nepetoides 47
- Yellow Groove Bamboo Phyllostachys aureosulcata —
- Yellow Hatpins Syngonanthus flavidulus 17
- Yellow Honeysuckle Lonicera flava 75
- Yellow Indiangrass Sorghastrum nutans 48
- Yellow Iris Iris pseudacorus —
- Yellow Lady's-slipper Cypripedium parviflorum 28
- Yellow Mandarin Prosartes lanuginosa 9
- Yellow Meadow Parsnip Thaspium trifoliatum var. aureum 24
- Yellow Meadow-beauty Rhexia lutea 43
- Yellow Nutsedge Cyperus esculentus —
- Yellow Passionflower Passiflora lutea 57
- Yellow Pimpernel Taenidia integerrima 19
- Yellow Pitcherplant Sarracenia flava 42
- Yellow Rocket-cress Barbarea vulgaris —
- Yellow Salsify Tragopogon dubius —
- Yellow Screwstem Bartonia virginica 8
- Yellow Sneezeweed Helenium amarum —
- Yellow Spikerush Eleocharis flavescens 34
- Yellow Star-grass Hypoxis hirsuta 19
- Yellow Sunnybell Schoenolirion croceum 8
- Yellow Sweetclover Melilotus officinalis —
- Yellow Thistle Cirsium horridulum 89
- Yellow Thistle; Bull Thistle; Horrid Thistle Cirsium horridulum var. horridulum 89
- Yellow Trillium Trillium luteum 24
- Yellow Trout-lily Erythronium americanum 20
- Yellow Wild Indigo Baptisia tinctoria 76
- Yellow Yam Dioscorea villosa 15
- Yellow-fringed Orchid Platanthera ciliaris 27
- Yellowfruit Horse-gentian Triosteum angustifolium 21
- Yellowfruit Sedge Carex annectens 58
- Yellowroot Xanthorhiza simplicissima 8
- Yellowseed False Pimpernel Lindernia dubia var. dubia —
- Yellowseed False-pimpernel Lindernia dubia 23
Z
- Zamia pumila Zamia pumila —
- Zamia pumila subsp. pumila Zamia pumila subsp. pumila —
- Zea mays subsp. mays Zea mays subsp. mays —
- Zelkova serrata Zelkova serrata —
- Zephyranthes grandiflora Zephyranthes grandiflora —
- Zephyranthes treatiae Zephyranthes treatiae —
- Zigzag Bladderwort Utricularia subulata 22
- Zigzag Goldenrod Solidago flexicaulis 90
- Zigzag Jointvetch Aeschynomene rudis —
- Zigzag Spiderwort Tradescantia subaspera 55
- Zigzag Spiderwort Tradescantia subaspera var. montana 55
- Zinnia violacea Zinnia violacea —
- Zizania aquatica var. aquatica Zizania aquatica var. aquatica —
- Ziziphus zizyphus Ziziphus zizyphus —
- Zoysia matrella var. matrella Zoysia matrella var. matrella —