Plant catalogue
South Carolina
3,615 plants in the catalogue. 2,118 scored native plants. 1,005 plants without a resolved native score. Find natives for your garden → Plants by wildlife
A
- Abelia chinensis Abelia chinensis —
- Abelia triflora Abelia triflora —
- Acalypha gracilens var. delzii Acalypha gracilens var. delzii —
- Acalypha setosa Acalypha setosa —
- Acanthospermum hispidum Acanthospermum hispidum —
- Acanthus mollis Acanthus mollis —
- Acer grandidentatum Acer grandidentatum —
- Acer grandidentatum var. sinuosum Acer grandidentatum var. sinuosum —
- Acer saccharum subsp. leucoderme Acer saccharum subsp. leucoderme —
- Achillea millefolium Achillea millefolium —
- Acid-swamp Yellow-eyed-grass Xyris serotina 36
- Acmella pilosa Acmella pilosa —
- Actinidia arguta Actinidia arguta —
- Actinidia polygama Actinidia polygama —
- Adenanthera pavonina Adenanthera pavonina —
- Aegopodium podagraria var. variegatum Aegopodium podagraria var. variegatum —
- Aeschynomene americana Aeschynomene americana —
- Aesculus parviflora Aesculus parviflora —
- African Indigo Indigofera tinctoria —
- Agalinis tenella Agalinis tenella —
- Ageratina havanensis Ageratina havanensis —
- Ageratum conyzoides Ageratum conyzoides —
- Agrimonia incisa Agrimonia incisa 33
- Albany Hawthorn Crataegus furtiva —
- Alfalfa Medicago sativa —
- Alga-like Pondweed Potamogeton confervoides 42
- Allamanda cathartica Allamanda cathartica —
- Allegheny Blackberry Rubus allegheniensis 95
- Allegheny Brookfoam Boykinia aconitifolia 8
- Allegheny Chinquapin Castanea pumila 86
- Allegheny Hawkweed Hieracium paniculatum 35
- Allegheny Monkey Flower Mimulus ringens var. ringens 36
- Allegheny Monkey-flower Mimulus ringens 36
- Allegheny Mountain Golden-banner Thermopsis mollis 40
- Allegheny Sedge Carex allegheniensis 59
- Allegheny Serviceberry Amelanchier arborea var. laevis 77
- Allegheny-spurge Pachysandra procumbens 13
- Alligator-weed Alternanthera philoxeroides —
- Allium aaseae Allium aaseae —
- Allium canadense var. canadense Allium canadense var. canadense —
- Allium cascadense Allium cascadense —
- Alnus incana Alnus incana —
- Alnus incana subsp. rugosa Alnus incana subsp. rugosa —
- Aloe Yucca Yucca aloifolia 57
- Alsike Clover Trifolium hybridum —
- Alternanthera pungens Alternanthera pungens —
- Alternanthera sessilis Alternanthera sessilis —
- Amaranthus thunbergii Amaranthus thunbergii —
- Amazon Sprangletop Leptochloa panicoides —
- Amelanchier alnifolia Amelanchier alnifolia —
- Amelanchier alnifolia var. humptulipensis Amelanchier alnifolia var. humptulipensis —
- Amelanchier oblongifolia Amelanchier oblongifolia —
- 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 Beautyberry Callicarpa americana 42
- American Beech Fagus grandifolia 72
- American Bladdernut Staphylea trifolia 30
- American Bluehearts Buchnera americana 15
- American Bugleweed Lycopus americanus 33
- American Bur-reed Sparganium americanum 40
- 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 Frog's-bit Limnobium spongia 25
- American Germander Teucrium canadense 43
- American Ginseng Panax quinquefolius 15
- American Glasswort Salicornia virginica 19
- American Golden-saxifrage Chrysosplenium americanum 8
- American Groundnut Apios americana 40
- American Halfchaff Sedge Lipocarpha maculata —
- American Hazelnut Corylus americana 56
- American Hog-peanut Amphicarpa bracteata 44
- American Holly Ilex opaca 97
- American Hop-hornbeam Ostrya virginiana 65
- American Hornbeam Carpinus caroliniana 68
- American Ipecac Euphorbia ipecacuanhae 64
- American Lily-of-the-valley Convallaria majalis var. montana —
- American Lopseed Phryma leptostachya 8
- American Lotus Nelumbo lutea 39
- American Lovage Ligusticum canadense 19
- American Mistletoe Phoradendron leucarpum 29
- American Pennyroyal Hedeoma pulegioides 23
- American Persimmon Diospyros virginiana 76
- American Plum Prunus americana 100
- American Pokeweed Phytolacca americana 67
- American Searocket Cakile edentula 19
- American Senna Senna hebecarpa 64
- American Smoke Tree Cotinus obovatus —
- American Snowbell Styrax americanus 40
- American Spikenard Aralia racemosa 65
- American Strawberry-bush Euonymus americanus 52
- American Sycamore Platanus occidentalis 59
- American Water-pennywort Hydrocotyle americana 45
- 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 acuminatum subsp. implicatum 49
- Amorpha georgiana var. georgiana Amorpha georgiana var. georgiana —
- Amphianthus pusillus Amphianthus pusillus —
- Amphicarpum muhlenbergianum Amphicarpum muhlenbergianum —
- Amsonia ciliata var. ciliata Amsonia ciliata var. ciliata —
- Amsonia hubrichtii Amsonia hubrichtii —
- Amur Honeysuckle Lonicera maackii —
- Amur Maple Acer ginnala —
- Anagallis arvensis subsp. arvensis Anagallis arvensis subsp. arvensis —
- Anagallis minima Anagallis minima —
- Andropogon brachystachyus Andropogon brachystachyus —
- Andropogon glaucopsis Andropogon glaucopsis —
- Andropogon glomeratus var. glaucopsis Andropogon glomeratus var. glaucopsis —
- Andropogon glomeratus var. glomeratus Andropogon glomeratus var. glomeratus —
- Andropogon gyrans var. gyrans Andropogon gyrans var. gyrans —
- Andropogon ternarius var. ternarius Andropogon ternarius var. ternarius —
- Angelonia angustifolia Angelonia angustifolia —
- Anglestem Beaksedge Rhynchospora caduca 39
- Anglestem Primrose-willow Ludwigia leptocarpa 65
- Anisacanthus quadrifidus Anisacanthus quadrifidus —
- Anisacanthus quadrifidus var. wrightii Anisacanthus quadrifidus var. wrightii —
- Annual Bluegrass Poa annua —
- 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 33
- Annual Phlox Phlox drummondii —
- Annual Rabbit's-foot Grass Polypogon monspeliensis —
- Annual Saltmarsh Aster Aster subulatus 93
- Annual Sea-blite Suaeda linearis 8
- Annual Trampweed Facelis retusa —
- Annual Vernal-grass Anthoxanthum aristatum —
- Annual Water Aster; Annual Yard Aster Symphyotrichum divaricatum —
- Annual Wild-rice Zizania aquatica 46
- Anoda crenatiflora Anoda crenatiflora —
- Anredera cordifolia Anredera cordifolia —
- Antennaria alpina Antennaria alpina —
- Antennaria parlinii subsp. fallax Antennaria parlinii subsp. fallax —
- Anthaenantia rufa Anthaenantia rufa —
- Anthaenantia villosa Anthaenantia villosa —
- Appalachian Blazing-star Liatris earlei 56
- Appalachian Bunchflower Veratrum parviflorum 23
- Appalachian Filmy-fern Trichomanes boschianum 8
- Appalachian Ragwort Onopordum acanthium —
- Appalachian Rockcap Fern Polypodium appalachianum 19
- Appalachian Sandwort Minuartia glabra —
- Appalachian Sedge Carex appalachica 59
- Appalachian Small Spreading Pogonia Cleistes bifaria 8
- Apple Mint Mentha suaveolens —
- Apple-of-Peru Nicandra physalodes —
- Aquatic Milkweed Asclepias perennis 67
- Araujia sericifera Araujia sericifera —
- Arctostaphylos elegans Arctostaphylos elegans —
- Arenaria groenlandica Arenaria groenlandica —
- Arisaema triphyllum subsp. quinatum Arisaema triphyllum subsp. quinatum —
- Arisaema triphyllum subsp. stewardsonii Arisaema triphyllum subsp. stewardsonii —
- Aristida beyrichiana Aristida beyrichiana —
- Aristida purpurascens var. purpurascens Aristida purpurascens var. purpurascens —
- Aristida purpurea Aristida purpurea —
- Aristida purpurea var. nealleyi Aristida purpurea var. nealleyi —
- Aristida spiciformis Aristida spiciformis 21
- Aristolochia elegans Aristolochia elegans —
- Arivela viscosa Arivela viscosa —
- Aromatic Aster Symphyotrichum oblongifolium 93
- Arrabidaea chica Arrabidaea chica —
- Arrow Leaf Clover Trifolium vesiculosum —
- Arrow Leaf Violet; Arrow Head Violet Viola sagittata var. sagittata 77
- Arrowfeather Three-awn Aristida purpurascens 21
- Arrowhead Rattlebox Crotalaria sagittalis 56
- Arrowleaf Sida Sida rhombifolia 65
- Arrowleaf Tearthumb Persicaria sagittata 75
- Arrowleaf Violet Viola sagittata 77
- Artemisia campestris Artemisia campestris —
- Artemisia campestris subsp. caudata Artemisia campestris subsp. caudata —
- Artemisia dracunculus Artemisia dracunculus —
- Artillery Plant Pilea microphylla —
- Aruncus dioicus var. vulgaris Aruncus dioicus var. vulgaris —
- Asclepias connivens Asclepias connivens —
- Asclepias fascicularis Asclepias fascicularis —
- Asclepias physocarpa Asclepias physocarpa —
- Asclepias tuberosa subsp. tuberosa Asclepias tuberosa subsp. tuberosa —
- Ashes Witch Grass Dichanthelium commutatum subsp. ashei 49
- Ashleaf Golden-banner Thermopsis fraxinifolia 40
- Ashy Sunflower Helianthus mollis 95
- Asiatic Dayflower Commelina communis —
- Asparagus asparagoides Asparagus asparagoides —
- Aspidistra elatior Aspidistra elatior —
- Asplenium patens Asplenium patens —
- Aster avitus Aster avitus —
- Aster concinnus Aster concinnus —
- Aster coridifolius Aster coridifolius —
- Aster dumosus var. dodgei Aster dumosus var. dodgei —
- Aster dumosus var. gracilipes Aster dumosus var. gracilipes —
- Aster fragilis Aster fragilis —
- Aster georgianus Aster georgianus —
- Aster lucidulus Aster lucidulus —
- Aster mirabilis Aster mirabilis —
- Aster puniceus Aster puniceus —
- Aster racemosus Aster racemosus —
- Aster reticulatus Aster reticulatus —
- Aster retroflexus Aster retroflexus —
- Aster simmondsii Aster simmondsii —
- Aster urophyllus Aster urophyllus —
- Aster vimineus Aster vimineus —
- Aster walteri Aster walteri —
- Astragalus bicristatus Astragalus bicristatus —
- Astragalus gracilis Astragalus gracilis —
- Atamasco Lily Zephyranthes atamasca —
- Atlantic Poison-oak Toxicodendron pubescens 81
- Atlantic White Cedar Chamaecyparis thyoides 46
- 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 59
- Awned Meadow-beauty Rhexia aristosa 43
- Awned Mountain-mint Pycnanthemum setosum 40
- Awnless Beggarticks Bidens polylepis 87
- Axilflower Mecardonia acuminata 15
- Axilflower Mecardonia acuminata var. acuminata 15
- Azure Bluet Houstonia caerulea 35
- Azure Sage Salvia azurea —
B
- Bagpod Sesbania vesicaria 58
- Bahia Grass Paspalum notatum var. saurae —
- Bahia-grass Paspalum notatum -30
- Bald Bedstraw Galium orizabense 54
- Bald Cypress Taxodium distichum 52
- Baldwin's Beaksedge Rhynchospora baldwinii 39
- 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 36
- Baldwins Flat Sedge Cyperus croceus 38
- Ball-moss Tillandsia recurvata —
- Balloon-flower Platycodon grandiflorus —
- Banana Water-lily Nymphaea mexicana —
- Baptisia alba var. alba Baptisia alba var. alba —
- Baptisia lanceolata Baptisia lanceolata —
- Baptisia perfoliata Baptisia perfoliata —
- Barberry Hawthorn Crataegus berberifolia 83
- Barrelhead Blazing Star Liatris cylindracea —
- Bartonia paniculata subsp. paniculata Bartonia paniculata subsp. paniculata —
- Basket Grass; Carpet Grass Arthraxon hispidus var. hispidus —
- Bastard Toadflax Comandra umbellata 22
- Batis maritima Batis maritima —
- Bauhinia lunarioides Bauhinia lunarioides —
- Bauhinia purpurea Bauhinia purpurea —
- Bauhinia yunnanensis Bauhinia yunnanensis —
- Bayard's Adder's-mouth Malaxis bayardii —
- Beach Evening-primrose Oenothera drummondii —
- Beach False Foxglove Agalinis fasciculata 54
- Beach Morning-glory Ipomoea imperati 81
- Beach Sunflower Helianthus debilis —
- Beadle's Mountain-mint Pycnanthemum beadlei 40
- Beaked Cornsalad Valerianella radiata 23
- 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 80
- Bearded Beggarticks Bidens aristosa 91
- Bearded Flatsedge Cyperus squarrosus 38
- Bearded Grass-pink Calopogon barbatus 12
- Bearded Milkvetch; Southern Milkvetch Astragalus villosus —
- Bearded Shorthusk Brachyelytrum erectum 15
- Bearded Skeleton-grass Gymnopogon ambiguus 15
- Bearded Sprangletop Leptochloa fusca subsp. fascicularis —
- Bears Foot Smallanthus uvedalia 25
- Beautybush Kolkwitzia amabilis —
- Bedstraw St. John's-wort Hypericum galioides 68
- Beechdrops Epifagus virginiana 12
- Beefsteak-plant Perilla frutescens —
- Bent Sedge Carex styloflexa 59
- Bent-awn Plumegrass Erianthus contortus 40
- Berberis koreana Berberis koreana —
- Berlandiera lyrata Berlandiera lyrata —
- Berlandiera pumila Berlandiera pumila —
- Berlandiera texana Berlandiera texana —
- Bermuda Grass Cynodon dactylon —
- Bicolor Lespedeza Lespedeza bicolor -85
- Biennial Wormwood; Biennial Worm Wood Artemisia biennis —
- Big Blue Lilyturf Liriope muscari —
- Big Bluestem Andropogon gerardii —
- Big Carpetgrass Axonopus furcatus 36
- Big Cordgrass Spartina cynosuroides 43
- Big Floating-heart Nymphoides aquatica 23
- Big Seed Alfalfa Dodder Cuscuta indecora 43
- Big Three-awn Aristida condensata 21
- Bigelowia nudata subsp. nudata Bigelowia nudata subsp. nudata —
- Bighead Rush Juncus megacephalus 44
- Bigleaf Magnolia Magnolia macrophylla 71
- Bigleaf Marsh-elder Iva frutescens 33
- Bigleaf Periwinkle Vinca major -55
- Bigleaf Snowbell Styrax grandifolius 40
- Bigpodded Sesbania Sesbania herbacea 58
- Bigtop Lovegrass Eragrostis hirsuta 32
- Biltmore Ash Fraxinus americana var. biltmoreana 75
- Biltmore Sedge Carex biltmoreana 59
- 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 Panicgrass Panicum amarum 49
- Bitternut Hickory Carya cordiformis 74
- Black Cherry Prunus serotina 100
- Black Cherry Prunus serotina var. serotina 100
- Black Cohosh Cimicifuga racemosa 30
- Black Highbush Blueberry Vaccinium atrococcum 98
- Black Huckleberry Gaylussacia baccata 80
- Black Locust Robinia pseudo-acacia 70
- Black Locust; Bristly Locust Robinia hispida var. rosea 70
- Black Medick Medicago lupulina —
- Black Mustard Brassica nigra —
- Black Needlerush Juncus roemerianus 44
- Black Oak Quercus velutina 88
- Black Raspberry Rubus occidentalis 97
- Black Spikerush Eleocharis nigrescens —
- Black Walnut Juglans nigra 53
- Black Willow Salix nigra 100
- Black-edge Sedge Carex nigromarginata 59
- Black-eyed Susan Rudbeckia hirta 80
- Blackeyed Susan Rudbeckia hirta var. pulcherrima 75
- Blackfruit Spikerush Eleocharis melanocarpa 34
- Blackgum Nyssa sylvatica 75
- Blackjack Oak Quercus marilandica 88
- Blackseed Plantain Plantago rugelii 69
- Blackstem Spleenwort Asplenium resiliens 15
- Bladder Campion Silene vulgaris —
- Bladder Sedge Carex intumescens 59
- Blessed Milk-thistle Silybum marianum —
- Blessed Thistle Centaurea benedicta —
- Blood Witchgrass Dichanthelium consanguineum 49
- Bloodroot Sanguinaria canadensis 34
- Blue Butterwort Pinguicula caerulea 8
- Blue Field-madder Sherardia arvensis —
- Blue Ground-cedar Diphasiastrum tristachyum 11
- Blue Mistflower Conoclinium coelestinum 84
- Blue Ridge Bindweed Calystegia sericata 57
- Blue Ridge Bittercress Cardamine flagellifera 40
- Blue Ridge Carrion-flower Smilax lasioneura 68
- Blue Ridge Catchfly Silene ovata 42
- Blue Ridge Ragwort Senecio millefolium 83
- Blue Ridge Sedge Carex lucorum 59
- Blue Ridge Sedge Carex lucorum var. austrolucorum —
- Blue Sandhill Lupine Lupinus diffusus 77
- Blue Sedge Carex glaucodea 59
- Blue Water-hyssop Bacopa caroliniana 36
- Blue Wood Sedge Carex flaccosperma 59
- Blueflower Eryngo Eryngium integrifolium 48
- Bluejack Oak Quercus incana 88
- Bluestem Goldenrod Solidago caesia 90
- Bluestem Prickly-poppy Argemone albiflora 26
- Bluff Oak Quercus austrina 88
- Blunt Broom Sedge Carex tribuloides 59
- Blunt Leaf Bedstraw Galium obtusum var. filifolium 54
- Blunt Spike Rush Eleocharis obtusa 34
- Blunt-lobe Cliff Fern Woodsia obtusa 8
- Bluntleaf Bedstraw Galium obtusum 54
- Bluntleaf False Foxglove Agalinis obtusifolia 54
- Bluntleaf Waterleaf Hydrophyllum canadense 24
- Boechera canadensis Boechera canadensis —
- Boechera laevigata Boechera laevigata —
- Boechera missouriensis Boechera missouriensis —
- Bog Chickweed Stellaria alsine 58
- Bog Huckleberry Gaylussacia bigeloviana —
- Bog Oatgrass Danthonia epilis 33
- Bog Rush Juncus biflorus 44
- Bog Smartweed Polygonum setaceum 75
- Bog Spicebush Lindera subcoriacea 65
- Bog Witch Grass Dichanthelium lucidum 49
- Bog Yellow-eyed-grass Xyris difformis 36
- Bog Yellowcress Rorippa islandica 36
- Boltonia asteroides var. asteroides Boltonia asteroides var. asteroides —
- Boltonia asteroides var. latisquama Boltonia asteroides var. latisquama —
- Borage Borago officinalis —
- Border Privet Ligustrum amurense —
- Bosc's Bluet Oldenlandia boscii 13
- Bosc's Witchgrass Dichanthelium boscii 49
- Bothriochloa barbinodis Bothriochloa barbinodis —
- Bothriochloa laguroides Bothriochloa laguroides —
- Bothriochloa laguroides subsp. torreyana Bothriochloa laguroides subsp. torreyana —
- Bothriochloa saccharoides Bothriochloa saccharoides —
- Bottle Gourd Lagenaria siceraria —
- Bouquet Aster Aster commixtus 56
- Bowiea volubilis Bowiea volubilis —
- Bowman's-root Gillenia trifoliata 17
- Box-elder Acer negundo 85
- Boykin's Lobelia Lobelia boykinii 48
- Brachiaria ramosa Brachiaria ramosa —
- Bradford Pear Pyrus calleryana -85
- Bradley's Spleenwort Asplenium bradleyi 15
- Branched Foldwing Dicliptera brachiata 15
- Brassica rapa Brassica rapa —
- Brazilian Cat's-ear Hypochaeris brasiliensis —
- Brazilian Vervain Verbena brasiliensis —
- Brazilian Watermeal Wolffia brasiliensis 11
- Brazilian Waterweed Egeria densa —
- Bread Wheat Triticum aestivum —
- Bridal-wreath Spiraea Spiraea prunifolia —
- Bristle Seed Star Grass Hypoxis wrightii 17
- Bristly Buttercup Ranunculus hispidus 51
- Bristly Dog's-tail Cynosurus echinatus —
- Bristly Flatsedge Cyperus hystricinus 38
- Bristly Locust Robinia hispida 70
- Bristly Scaleseed Spermolepis echinata 15
- Bristly Sedge Carex comosa 59
- Bristly-stalk Sedge Carex leptalea 59
- Brittle Waternymph Najas minor —
- Broad Beech Fern Phegopteris hexagonoptera 35
- Broad Looseflower Sedge Carex laxiflora 59
- Broadfruit Horned Beaksedge Rhynchospora careyana 39
- Broadleaf Arrowhead Sagittaria latifolia 62
- Broadleaf Cattail Typha latifolia 53
- Broadleaf Enchanter's-nightshade Circaea canadensis 9
- Broadleaf Enchanters Nightshade Circaea lutetiana 8
- Broadleaf Ironweed Vernonia glauca 75
- Broadleaf Meadowsweet Spiraea latifolia —
- Broadleaf Pond-lily Nuphar advena 54
- Broadleaf Signal-grass Urochloa platyphylla —
- Broadleaf Tickseed Coreopsis latifolia 68
- Broadtooth Hedge-nettle Stachys latidens 56
- Broadwing Sedge Carex alata 59
- Brome Fescue Vulpia bromoides —
- Brome-like Sedge Carex bromoides 59
- Broomsedge Andropogon virginicus 54
- Broomsedge Andropogon virginicus var. virginicus 54
- Brown-eyed Susan Rudbeckia triloba 80
- Brownfruit Rush Juncus abortivus 44
- Brownish Beaksedge Rhynchospora capitellata 39
- Browntop Millet Urochloa ramosa —
- Buchnera elongata Buchnera elongata —
- Buckthorn Bumelia Bumelia lycioides 71
- Buckwheat Fagopyrum esculentum —
- Buckwheat Vine Brunnichia ovata —
- Buffalo Clover Trifolium reflexum 95
- Buffalo-bur Nightshade Solanum rostratum —
- Buffalo-nut Pyrularia pubera 10
- Bulbostylis ciliatifolia var. ciliatifolia Bulbostylis ciliatifolia var. ciliatifolia —
- Bulbous Adder's-tongue Ophioglossum crotalophoroides 8
- Bulbous Bittercress Cardamine bulbosa 42
- Bulbous Buttercup Ranunculus bulbosus —
- Bulbous Woodrush Luzula bulbosa 12
- Bull Crowngrass Paspalum boscianum 66
- Bull Thistle Cirsium vulgare -30
- Bunched Arrowhead Sagittaria fasciculata 58
- Bunched Beaksedge Rhynchospora cephalantha 39
- Bur Chervil Anthriscus caucalis —
- Bur Medick Medicago minima —
- Bushs Muhly Muhlenbergia bushii 27
- Bushy Aster Aster dumosus 93
- Bushy Bluestem Andropogon glomeratus 54
- Bushy Seedbox Ludwigia alternifolia 65
- Bushy St. John's-wort Hypericum densiflorum 72
- Butter-and-eggs Linaria vulgaris —
- Butterfly Milkweed Asclepias tuberosa 70
- Butternut Juglans cinerea 53
- Butterweed Packera glabella 83
- Button Sedge Carex bullata 59
- Buttonbush Cephalanthus occidentalis 79
- Buttonbush Dodder Cuscuta cephalanthi 43
- Buxbaum's Sedge Carex buxbaumii 59
- Buxus harlandii Buxus harlandii —
C
- Cabbage Brassica oleracea —
- Cabbage Palmetto Sabal palmetto 65
- Cacalia muehlenbergii Cacalia muehlenbergii —
- Caesalpinia bonduc Caesalpinia bonduc —
- Caesalpinia gilliesii Caesalpinia gilliesii —
- Caesalpinia mexicana Caesalpinia mexicana —
- Cakile edentula subsp. harperi Cakile edentula subsp. harperi —
- Calamagrostis coarctata Calamagrostis coarctata —
- Calamintha georgiana Calamintha georgiana —
- Calamovilfa curtissii Calamovilfa curtissii —
- Calcium-fleeing Sedge Carex calcifugens 59
- Caley Pea Lathyrus hirsutus —
- Calico Aster Aster lateriflorus 93
- California Brome Bromus carinatus —
- California Bulrush Schoenoplectus californicus 45
- California Poppy Eschscholzia californica —
- Callisia fragrans Callisia fragrans —
- Callitriche heterophylla subsp. heterophylla Callitriche heterophylla subsp. heterophylla —
- Callitriche peploides Callitriche peploides —
- Calycanthus fertilis Calycanthus fertilis —
- Calycanthus floridus var. laevigatus Calycanthus floridus var. laevigatus —
- Calypso bulbosa Calypso bulbosa —
- Calyptranthes krugii Calyptranthes krugii —
- Calystegia catesbiana Calystegia catesbiana —
- Calystegia sepium subsp. sepium Calystegia sepium subsp. sepium —
- Camellia japonica Camellia japonica —
- Camellia sasanqua Camellia sasanqua —
- Campanula aurita Campanula aurita —
- Camphor Pluchea Pluchea camphorata 69
- Camphor-tree Cinnamomum camphora -15
- Camphorweed Heterotheca subaxillaris 74
- Campsis grandiflora Campsis grandiflora —
- Camptotheca acuminata Camptotheca acuminata —
- Canada Bluegrass Poa compressa —
- Canada Frostweed Crocanthemum canadense 32
- Canada Germander Teucrium canadense var. canadense 40
- Canada Horsebalm Collinsonia canadensis 29
- Canada Lettuce Lactuca canadensis 88
- Canada Lily Lilium 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 16
- Canada Wild-rye Elymus canadensis —
- Canada Wood-nettle Laportea canadensis 25
- Canadian Black-snakeroot Sanicula canadensis 15
- Canadian Clearweed Pilea pumila 21
- Canadian Honewort Cryptotaenia canadensis 22
- Canadian Lousewort Pedicularis canadensis 33
- Canadian Milkvetch Astragalus canadensis 73
- Canadian Rush Juncus canadensis 44
- Canadian Serviceberry Amelanchier canadensis 78
- Canadian St. John's-wort Hypericum canadense 68
- Canadian Waterweed Elodea canadensis 20
- Canary Island Tamarisk Tamarix canariensis —
- Canby's Bulrush Schoenoplectus etuberculatus 45
- Canby's Lobelia Lobelia canbyi 48
- Canna flaccida Canna flaccida —
- Capillary Hairsedge Bulbostylis ciliatifolia 8
- Cardamine heterophylla Cardamine heterophylla —
- Cardinal-flower Lobelia cardinalis 48
- Carex albonigra Carex albonigra —
- Carex amplifolia Carex amplifolia —
- Carex atlantica subsp. capillacea Carex atlantica subsp. capillacea —
- Carex bromoides var. bromoides Carex bromoides var. bromoides —
- Carex bromoides var. montana Carex bromoides var. montana —
- Carex canescens Carex canescens —
- Carex communis var. amplisquama Carex communis var. amplisquama —
- Carex convoluta Carex convoluta —
- Carex cumulata Carex cumulata —
- Carex dasycarpa Carex dasycarpa —
- Carex harperi Carex harperi —
- Carex jonesii Carex jonesii —
- Carex plana Carex plana —
- Carex prionophylla Carex prionophylla —
- Carex rariflora Carex rariflora —
- Carex striata var. striata Carex striata var. striata —
- Carex tribuloides var. tribuloides Carex tribuloides var. tribuloides —
- Carica papaya Carica papaya —
- Carolina Alumroot Heuchera caroliniana 25
- Carolina Ash Fraxinus caroliniana 75
- Carolina Birds-in-a-nest Macbridea caroliniana 8
- Carolina Bog-asphodel Tofieldia glabra 8
- Carolina Bristle-mallow Modiola caroliniana —
- Carolina Buckthorn Frangula caroliniana 70
- Carolina Canary-grass Phalaris caroliniana —
- Carolina Clover Trifolium carolinianum 95
- Carolina Coralbead Cocculus carolinus —
- Carolina Crane's-bill Geranium carolinianum 79
- Carolina Crownbeard Verbesina walteri 80
- Carolina Dayflower Commelina caroliniana —
- Carolina Doll's-daisy Boltonia caroliniana 23
- Carolina Dropseed Sporobolus pinetorum 31
- Carolina Elephant's-foot Elephantopus carolinianus 45
- Carolina False-dandelion Pyrrhopappus carolinianus 48
- Carolina Fanwort Cabomba caroliniana 15
- Carolina Fluffgrass Tridens carolinianus 31
- Carolina Foxtail Alopecurus carolinianus 20
- Carolina Frostweed Crocanthemum carolinianum 32
- Carolina Grass-of-Parnassus Parnassia caroliniana 17
- Carolina Grasswort Lilaeopsis carolinensis 8
- 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 40
- Carolina Jessamine Gelsemium sempervirens 17
- Carolina Laurel Kalmia angustifolia var. 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 helleri 65
- Carolina Redroot Lachnanthes caroliniana 22
- Carolina Rose Rosa carolina 76
- Carolina Sea-lavender Limonium carolinianum 25
- Carolina Sedge Carex caroliniana 59
- Carolina Spider-lily Hymenocallis crassifolia 15
- Carolina Tassel-rue Trautvetteria caroliniensis 8
- Carolina Thistle Cirsium carolinianum 87
- Carolina Vetch Vicia caroliniana 77
- Carolina Violet Viola villosa 77
- Carolina Wild-petunia Ruellia caroliniensis 36
- Carolina Wiregrass Aristida stricta 22
- Carolina Wood Rush Luzula acuminata var. carolinae 12
- Carolina Yellow-eyed-grass Xyris caroliniana 36
- Carpet Witchgrass; Carpet Witch Grass Dichanthelium chamaelonche —
- Carpet-bugle Ajuga reptans —
- Carphephorus odoratissimus Carphephorus odoratissimus —
- Carphephorus paniculatus Carphephorus paniculatus —
- Carthamus tinctorius Carthamus tinctorius —
- Carya alba Carya alba —
- Cassia corymbosa Cassia corymbosa —
- Castilleja grisea Castilleja grisea —
- Cat Greenbrier Smilax glauca 71
- Catchfly Cutgrass Leersia lenticularis 29
- Catesbys Trillium Trillium catesbaei —
- Cattail Sedge Carex typhina 59
- Ceanothus americanus var. intermedius Ceanothus americanus var. intermedius 89
- Celery Apium graveolens —
- Celliotts Fanpetals Sida elliottii var. elliottii 65
- Celtis georgiana Celtis georgiana —
- Celtis laevigata var. laevigata Celtis laevigata var. laevigata —
- Centipede Grass Eremochloa ophiuroides —
- Centratherum punctatum Centratherum punctatum —
- Cerastium fontanum subsp. vulgare Cerastium fontanum subsp. vulgare —
- Ceratiola ericoides Ceratiola ericoides —
- Chaerophyllum tainturieri var. tainturieri Chaerophyllum tainturieri var. tainturieri —
- Chalk Maple Acer leucoderme 85
- Chamaecrista nictitans subsp. nictitans Chamaecrista nictitans subsp. nictitans —
- Chamaesyce bombensis Chamaesyce bombensis —
- Chamaesyce cordifolia Chamaesyce cordifolia —
- Chamaesyce hirta Chamaesyce hirta —
- Chamaesyce hyssopifolia Chamaesyce hyssopifolia —
- Chamaesyce ophthalmica Chamaesyce ophthalmica —
- Chamaesyce polygonifolia Chamaesyce polygonifolia —
- Chamber-bitter Phyllanthus urinaria —
- Chapman's Arrowhead Sagittaria chapmanii —
- Chapman's Beaksedge Rhynchospora chapmanii 39
- Chapman's Bluegrass Poa chapmaniana 59
- Chapman's Redtop Tridens flavus var. chapmanii —
- Chapman's Sedge Carex chapmanii 59
- Chapman's Yellow-eyed-grass Xyris chapmanii 36
- Chaste-tree Vitex agnus-castus —
- Cheat-grass Bromus tectorum —
- Chenopodium berlandieri var. boscianum Chenopodium berlandieri var. boscianum 51
- Cherokee Rose Rosa laevigata -15
- Cherokee Sedge Carex cherokeensis 59
- Cherrybark Oak Quercus pagoda 88
- Chickasaw Plum Prunus angustifolia 100
- Chicken-spike Sphenoclea zeylanica —
- Chicory Cichorium intybus —
- Chilopsis linearis Chilopsis linearis —
- Chimonanthus praecox Chimonanthus praecox —
- Chinaberry Melia azedarach -30
- Chinese Chestnut Castanea mollissima —
- Chinese Firethorn; Chinese Fire Thorn Pyracantha fortuneana —
- Chinese Holly Ilex cornuta —
- Chinese Mustard Brassica juncea —
- Chinese Privet Ligustrum sinense -85
- Chinese Silver-grass Miscanthus sinensis -85
- Chinese Tallow-tree Sapium sebiferum -55
- Chinese Thorn-apple Datura quercifolia —
- Chinese Wisteria Wisteria sinensis -85
- Chinese Yam Dioscorea polystachya -85
- Chinquapin Oak Quercus muehlenbergii 88
- Chocolate-weed Melochia corchorifolia —
- Christmas Fern Polystichum acrostichoides 31
- Chrysanthemum coccineum Chrysanthemum coccineum —
- Chrysanthemum morifolium Chrysanthemum morifolium —
- Chrysanthemum pacificum Chrysanthemum pacificum —
- Chrysanthemum parthenium Chrysanthemum parthenium —
- Chrysobalanus oblongifolius Chrysobalanus oblongifolius —
- Chrysogonum virginianum var. australe Chrysogonum virginianum var. australe —
- Chrysogonum virginianum var. brevistolon Chrysogonum virginianum var. brevistolon —
- Chrysopsis gossypina subsp. gossypina Chrysopsis gossypina subsp. gossypina —
- Chrysopsis pinifolia Chrysopsis pinifolia —
- Chufa Flat Sedge; Earth Almond Cyperus esculentus var. leptostachyus —
- Churchmouse Three-awn Aristida dichotoma 21
- Cinnamon Fern Osmunda cinnamomea 28
- Cirsium horridulum var. vittatum Cirsium horridulum var. vittatum —
- Clammy Ground-cherry Physalis heterophylla 73
- Clammy Hedge-hyssop Gratiola neglecta 8
- Clammy Locust Robinia viscosa 70
- Clasping Bugleweed Lycopus amplectens 30
- Clasping Coneflower Rudbeckia amplexicaulis —
- Clasping Heliotrope Heliotropium amplexicaule —
- Clasping Milkweed Asclepias amplexicaulis 67
- Clasping Venus's-looking-glass Triodanis perfoliata 22
- Clasping-leaf St. John's-wort Hypericum gymnanthum 68
- Cleavers Galium aparine 54
- Clethra alnifolia var. tomentosa Clethra alnifolia var. tomentosa —
- Cliffside Goldenrod Solidago simulans —
- Cliftonia monophylla Cliftonia monophylla —
- Climbing Aster Ampelaster carolinianus 59
- Climbing Dogbane Trachelospermum difforme 22
- Climbing Hempweed Mikania scandens 55
- Climbing Hydrangea Decumaria barbara —
- Clustered Beaksedge Rhynchospora glomerata 39
- Clustered Black-snakeroot Sanicula odorata 15
- Clustered Bushmint Hyptis alata 32
- Clustered Dock Rumex conglomeratus —
- Clustered Fescue Festuca paradoxa 40
- Clustered Mille Graines Oldenlandia uniflora 13
- Clustered Mountain-mint Pycnanthemum muticum 40
- Clustered Pellitory Parietaria praetermissa 25
- Clusterspike Indigo-bush Amorpha herbacea 77
- Cnidoscolus chayamansa Cnidoscolus chayamansa —
- Cnidoscolus urens Cnidoscolus urens —
- Coast Cockspur-grass Echinochloa walteri 37
- Coastal Beaksedge Rhynchospora pleiantha 39
- Coastal Bedstraw Galium hispidulum —
- Coastal Bristlegrass Setaria corrugata 43
- Coastal Carrion-flower Smilax pseudochina 68
- Coastal Doghobble Leucothoe axillaris 25
- Coastal Lovegrass Eragrostis refracta 32
- Coastal Plain Beaksedge Rhynchospora stenophylla 39
- Coastal Plain Blue-eyed-grass Sisyrinchium arenicola 16
- Coastal Plain Dawnflower Stylisma patens 22
- Coastal Plain Joe-pye-weed Eupatorium dubium 85
- Coastal Plain Puccoon Lithospermum caroliniense —
- Coastal Plain Sedge Carex crebriflora 59
- Coastal Plain Willow Salix caroliniana 99
- Coastal Plain Witchgrass Dichanthelium acuminatum subsp. longiligulatum 49
- Coastal Rose-gentian Sabatia calycina 14
- Coastal Sand Spurge Euphorbia exserta 64
- 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 68
- Coastal-plain Yellow-eyed-grass Xyris ambigua 36
- Cockspur Hawthorn Crataegus crus-galli 87
- Coelorachis tuberculosa Coelorachis tuberculosa —
- Coffee Senna Senna occidentalis —
- Cogongrass Imperata cylindrica -55
- Coker's Bugleweed Lycopus cokeri —
- Collins's Sedge Carex collinsii 59
- Colombian Waxweed Cuphea carthagenensis —
- Combleaf Mermaid-weed Proserpinaca pectinata 8
- Combleaf Yellow False Foxglove Aureolaria pectinata 46
- Commelina communis var. communis Commelina communis var. communis —
- Commelina communis var. ludens Commelina communis var. ludens —
- Commelina erecta var. angustifolia Commelina erecta var. angustifolia 51
- Commom Daffodil Narcissus pseudonarcissus —
- Common Barley Hordeum vulgare —
- Common Barnyard-grass Echinochloa crus-galli —
- Common Bladderwort Utricularia macrorhiza 22
- Common Blue Cohosh Caulophyllum thalictroides 22
- Common Boneset Eupatorium perfoliatum 85
- Common Boxwood Buxus sempervirens —
- Common Canary-grass Phalaris canariensis —
- Common Carpetgrass Axonopus fissifolius —
- Common Chickweed Stellaria media —
- Common Cinquefoil Potentilla simplex 68
- Common Clasping Aster Symphyotrichum patens var. patens 93
- Common Climbing Buckwheat Fallopia scandens 75
- Common Corncockle Agrostemma githago —
- Common Cup-plant Silphium perfoliatum 54
- Common Dandelion Taraxacum officinale —
- Common Dodder Cuscuta gronovii 43
- Common Duckweed Lemna minor 31
- Common Elderberry Sambucus canadensis 75
- Common Elephant's-foot Elephantopus tomentosus 45
- Common Evening-primrose Oenothera biennis 82
- 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. robusta 68
- Common Hairy Forked Nailwort Paronychia fastigiata var. fastigiata —
- Common Hemp Nettle; Common Hempnettle; Hempnettle; Hemp Nettle; Brittlestemmed Hempnettle; Brittle Stemmed Hempnettle; Brittle Stem Hempnettle; Brittlestem Hempnettle; Brittlestemmed Hemp Nettle; Brittle Stemmed Hemp Nettle; Brittle Stem Hemp Nettle; Brittlestem Hemp Nettle Galeopsis tetrahit —
- Common Hoptree Ptelea trifoliata 37
- Common Hornwort Ceratophyllum demersum 13
- Common Jack-in-the-pulpit Arisaema triphyllum 11
- Common Juniper Juniperus communis 59
- Common Lantana Lantana camara —
- Common Leopardbane Arnica acaulis 11
- Common Milkweed Asclepias syriaca 71
- Common Morning-glory Ipomoea purpurea —
- Common Motherwort Leonurus cardiaca —
- Common Mouse-ear Chickweed Cerastium fontanum —
- Common Mullein Verbascum thapsus —
- Common Ninebark Physocarpus opulifolius 65
- 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 Periwinkle Vinca minor -55
- Common Plantain Plantago major —
- Common Purslane Portulaca oleracea —
- Common Pyxie-moss Pyxidanthera barbulata 13
- 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 Shepherd's Purse Capsella bursa-pastoris —
- Common Sneezeweed Helenium autumnale 70
- Common Sowthistle Sonchus oleraceus —
- Common Speedwell Veronica officinalis —
- Common Spikerush Eleocharis palustris —
- Common St. John's-wort Hypericum perforatum —
- Common Sunflower Helianthus annuus —
- Common Sweetleaf Symplocos tinctoria 45
- Common Tansy Tanacetum vulgare —
- Common Three Square Bulrush Schoenoplectus pungens 45
- Common Threeseed Mercury Acalypha rhomboidea 36
- Common Velvet-grass Holcus lanatus —
- Common Viper's-bugloss Echium vulgare —
- Common Water-hyacinth Eichhornia crassipes —
- Common Water-primrose Ludwigia hexapetala —
- Common Waxmyrtle Morella cerifera 72
- Common Wild Quinine Parthenium integrifolium 73
- Common Winterberry Ilex verticillata 97
- Common wormwood'' Absinthium Artemisia absinthium —
- Common Yellow Woodsorrel Oxalis stricta 56
- Common Yucca Yucca filamentosa 53
- Compact Dodder Cuscuta compacta 43
- Compass Plant Silphium laciniatum —
- Cone-cup Spikerush Eleocharis tuberculosa 34
- Confederate Daisy Helianthus porteri —
- Confederate Huckleberry Gaylussacia nana 80
- Conoclinium greggii Conoclinium greggii —
- Conyza bonariensis var. bonariensis Conyza bonariensis var. bonariensis —
- Conyza canadensis Conyza canadensis 5
- Conyza canadensis var. canadensis Conyza canadensis var. canadensis —
- Coppery St. John's-wort Hypericum denticulatum 68
- Coral Greenbrier Smilax walteri 71
- Coral Honeysuckle Lonicera sempervirens 72
- Coral-bean Erythrina herbacea 36
- Coralberry Symphoricarpos orbiculatus 68
- Coreopsis integrifolia Coreopsis integrifolia —
- Coriander Coriandrum sativum —
- Corn Buttercup Ranunculus arvensis —
- Corn Chamomile Anthemis arvensis —
- Corn Speedwell Veronica arvensis —
- Corn Spurry Spergula arvensis —
- Corn-gromwell Buglossoides arvensis —
- Cornel-leaf Aster Aster infirmus 73
- Cornflower Centaurea cyanus —
- Corydalis micrantha subsp. australis Corydalis micrantha subsp. australis —
- Corylus avellana Corylus avellana —
- Corynephorus canescens Corynephorus canescens —
- Cota tinctoria Cota tinctoria —
- Cotton-batting Cudweed Pseudognaphalium stramineum —
- Cottony Golden-aster Chrysopsis gossypina 74
- Coupled Sedge Carex laxiculmis var. copulata 59
- Cranefly Orchid Tipularia discolor 8
- Crataegus aemula Crataegus aemula —
- Crataegus annosa Crataegus annosa —
- Crataegus cibaria Crataegus cibaria —
- Crataegus condigna Crataegus condigna —
- Crataegus contrita Crataegus contrita —
- Crataegus crocina Crataegus crocina —
- Crataegus denaria Crataegus denaria —
- Crataegus edura Crataegus edura —
- Crataegus flava Crataegus flava —
- Crataegus gattingeri Crataegus gattingeri —
- Crataegus insidiosa Crataegus insidiosa —
- Crataegus integra Crataegus integra —
- Crataegus lanata Crataegus lanata —
- Crataegus lepida Crataegus lepida —
- Crataegus mendosa Crataegus mendosa —
- Crataegus meridiana Crataegus meridiana —
- Crataegus recurvata Crataegus recurvata —
- Crataegus resima Crataegus resima —
- Crataegus rubella Crataegus rubella —
- Crataegus viridis var. lanceolata Crataegus viridis var. lanceolata —
- Crataegus viridis var. ovata Crataegus viridis var. ovata —
- Cream Avens Geum virginianum 19
- Cream Wild Indigo Baptisia bracteata 76
- Creeping Aster Aster surculosus 56
- Creeping Bellflower Campanula rapunculoides —
- Creeping Bentgrass Agrostis stolonifera —
- Creeping Blueberry Vaccinium crassifolium 98
- Creeping Burhead Echinodorus cordifolius 15
- Creeping Buttercup Ranunculus repens —
- Creeping Cucumber Melothria pendula 24
- Creeping Dayflower Commelina diffusa —
- Creeping Eryngo Eryngium prostratum 48
- Creeping Lespedeza Lespedeza repens 70
- Creeping Phlox Phlox stolonifera 52
- Creeping Rush Juncus repens 44
- Creeping Seedbox Ludwigia repens 65
- Creeping Spotflower Acmella repens 14
- Creeping St. John's-wort Hypericum adpressum 68
- Creeping Woodsorrel Oxalis corniculata —
- Crepe-myrtle Lagerstroemia indica —
- Crepis biennis Crepis biennis —
- Crested Anoda Anoda cristata —
- Crested Fringed Orchid Platanthera cristata 27
- Crimson Clover Trifolium incarnatum —
- Cross Milkwort Polygala cruciata —
- Crossvine Bignonia capreolata 40
- Crotalaria pallida var. obovata Crotalaria pallida var. obovata —
- Crotalaria rotundifolia var. vulgaris Crotalaria rotundifolia var. vulgaris —
- Croton capitatus var. capitatus Croton capitatus var. capitatus —
- Croton capitatus var. lindheimeri Croton capitatus var. lindheimeri —
- Croton dioicus Croton dioicus —
- Croton elliottii Croton elliottii —
- Croton glandulosus var. glandulosus Croton glandulosus var. glandulosus —
- Crow-poison Zigadenus densus 13
- Crowfoot Grass Dactyloctenium aegyptium —
- Crown-vetch Securigera varia -30
- Crowned Beggarticks Bidens coronata 87
- Cucumber Cucumis sativus —
- Cucumber Magnolia Magnolia acuminata 71
- Cudrania tricuspidata Cudrania tricuspidata —
- Cultivated Rye Secale cereale —
- Culver's-root Veronicastrum virginicum 36
- Cumberland Sedge Carex cumberlandensis 59
- Cuphea micropetala Cuphea micropetala —
- Cupressus arizonica Cupressus arizonica —
- Cupressus arizonica subsp. stephensonii Cupressus arizonica subsp. stephensonii —
- Curly Dock Rumex crispus —
- 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 67
- 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 36
- Cuscuta japonica Cuscuta japonica —
- Cuscuta pentagona var. pentagona Cuscuta pentagona var. pentagona —
- Cut-over Muhly Muhlenbergia expansa 27
- Cutleaf Coneflower Rudbeckia laciniata 78
- Cutleaf Crane's-bill Geranium dissectum —
- Cutleaf Evening-primrose Oenothera laciniata 81
- Cutleaf Goldenrod Solidago arguta 90
- Cutleaf Grapefern Botrychium dissectum 11
- Cutleaf Ground-cherry Physalis angulata 73
- Cutleaf Toothwort Cardamine concatenata 40
- Cutleaf Water-milfoil Myriophyllum pinnatum 33
- Cylindric-fruit Seedbox Ludwigia glandulosa 65
- Cymose Beaksedge Rhynchospora recognita 39
- Cyperus cuspidatus Cyperus cuspidatus —
- Cyperus distinctus Cyperus distinctus —
- Cyperus drummondii Cyperus drummondii —
- Cyperus esculentus var. macrostachyus Cyperus esculentus var. macrostachyus —
- Cyperus filicinus Cyperus filicinus 38
- Cyperus globulosus Cyperus globulosus —
- Cyperus oxylepis Cyperus oxylepis —
- Cypress Spurge Euphorbia cyparissias —
- Cypress Witchgrass Dichanthelium dichotomum 49
- Cypress-knee Sedge Carex decomposita 59
- Cypress-swamp Sedge Carex joorii 59
- Cypress-vine Ipomoea quamoclit —
- Cypripedium parviflorum var. pubescens Cypripedium parviflorum var. pubescens —
D
- Dahlia Dahlia pinnata —
- Dahlia rosea Dahlia rosea —
- Dahoon Holly Ilex cassine 97
- Dalbergia ecastaphyllum Dalbergia ecastaphyllum —
- Dalea pinnata var. pinnata Dalea pinnata var. pinnata 71
- Dallis-grass Paspalum dilatatum -30
- Dame's Rocket Hesperis matronalis —
- Dangleberry Gaylussacia frondosa 80
- Dark Indigo Bush Amorpha nitens —
- Dark-green Bulrush Scirpus atrovirens 45
- Dark-green Sedge Carex venusta 59
- Darlington Oak Quercus hemisphaerica 88
- Dasistoma macrophylla Dasistoma macrophylla —
- Deceptive Spinypod; Deceptive Spiny Pod Matelea decipiens —
- Deepwoods Horsebalm Collinsonia tuberosa 29
- Deer-tongue Witchgrass Dichanthelium clandestinum 49
- Deerberry Vaccinium stamineum 98
- Delosperma cooperi Delosperma cooperi —
- Delphinium californicum Delphinium californicum —
- Dense Blazing-star Liatris spicata 56
- Dense-flower Smartweed Polygonum densiflorum 75
- Dense-spike Blackroot Pterocaulon pycnostachyum 24
- Denseflower Knotweed Persicaria glabra —
- Densetuft Hairsedge Bulbostylis capillaris 8
- Deptford Pink Dianthus armeria —
- Desert Horse-purslane Trianthema portulacastrum —
- Desmodium cuspidatum var. cuspidatum Desmodium cuspidatum var. cuspidatum 69
- Devil's Beggarticks Bidens frondosa 89
- Devil's-bit Chamaelirium luteum 8
- Devil's-walkingstick Aralia spinosa 71
- Dianthus caryophyllus Dianthus caryophyllus —
- Diapensia lapponica Diapensia lapponica —
- Dicerandra odoratissima Dicerandra odoratissima —
- Dichanthelium aciculare subsp. neuranthum Dichanthelium aciculare subsp. neuranthum —
- Dichanthelium chamaelonche subsp. chamaelonche Dichanthelium chamaelonche subsp. chamaelonche —
- Dichanthelium dichotomum subsp. lucidum Dichanthelium dichotomum subsp. lucidum —
- Dichanthelium dichotomum subsp. roanokense Dichanthelium dichotomum subsp. roanokense —
- Dichanthelium oligosanthes subsp. scribnerianum Dichanthelium oligosanthes subsp. scribnerianum —
- Dichanthelium ovale subsp. pseudopubescens Dichanthelium ovale subsp. pseudopubescens —
- Dichanthelium strigosum subsp. glabrescens Dichanthelium strigosum subsp. glabrescens —
- Dichanthium tenue Dichanthium tenue —
- Diffuse Rush Juncus diffusissimus 44
- Digitalis lanata Digitalis lanata —
- Digitaria cognata Digitaria cognata —
- Dill Anethum graveolens —
- Dimpled Trout-lily Erythronium umbilicatum 20
- Dioscorea floridana Dioscorea floridana —
- Dioscorea polygonoides Dioscorea polygonoides —
- Dioscorea villosa var. floridana Dioscorea villosa var. floridana —
- Ditch-stonecrop Penthorum sedoides 8
- Dixie Sedge Carex amplisquama 59
- Dixie Whitetop Aster Sericocarpus tortifolius 48
- Dog-fennel Eupatorium capillifolium 81
- Dog-tongue Buckwheat Eriogonum tomentosum 57
- Dollarleaf Snoutbean Rhynchosia reniformis 36
- Dorycnium herbaceum Dorycnium herbaceum —
- Dotted Duckmeat Spirodela punctata —
- Dotted Smartweed Persicaria punctata 75
- Doubleform Snoutbean Rhynchosia difformis 36
- Dove's-foot Crane's-bill Geranium molle —
- Downy Agrimony Agrimonia pubescens 33
- Downy Goldenrod Solidago puberula 90
- Downy Ground-cherry Physalis pubescens 73
- 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 —
- Drooping Bulrush Scirpus lineatus 45
- Drooping Sedge Carex prasina 59
- Drooping Trillium Trillium flexipes 24
- Drug Fumitory Fumaria officinalis —
- Drummond's St. John's-wort Hypericum drummondii 68
- Dryland White Bluestem Andropogon capillipes 54
- Drymaria cordata Drymaria cordata —
- Dudley's Rush Juncus dudleyi 44
- Dune Ground-cherry Physalis walteri 73
- Dune Hairgrass Muhlenbergia filipes 27
- Dune Marsh-elder Iva imbricata 33
- Dune Sandspur Cenchrus tribuloides 49
- Dusty Downy Goldenrod Solidago puberula var. pulverulenta —
- Dwarf Arrowhead Sagittaria subulata 58
- Dwarf Azalea Rhododendron atlanticum 90
- Dwarf Bladderwort Utricularia olivacea 22
- Dwarf Chinquapin Oak Quercus prinoides 88
- Dwarf Cinquefoil Potentilla canadensis 71
- Dwarf Crested Iris Iris cristata 58
- Dwarf Filmy-fern Trichomanes petersii 8
- Dwarf Glasswort Salicornia bigelovii 19
- Dwarf Hackberry Celtis occidentalis var. georgiana 65
- Dwarf Hawthorn Crataegus munda 77
- Dwarf Huckleberry Gaylussacia dumosa 81
- Dwarf Live Oak Quercus minima 85
- Dwarf Locust Robinia nana 70
- Dwarf Milkwort Polygala nana —
- Dwarf Palmetto Sabal minor 65
- Dwarf Pawpaw Asimina parviflora 55
- Dwarf Skullcap Scutellaria parvula 37
- Dwarf Spikerush Eleocharis parvula 34
- Dwarf St. John's-wort Hypericum mutilum 68
- Dwarf Sundew Drosera brevifolia 20
- Dwarf Upland Willow Salix humilis var. tristis —
- Dwarf Upland Willow Salix occidentalis 99
- Dwarf Violet Iris Iris verna 57
- Dwarf Witch-alder Fothergilla gardenii 22
- Dwarf-flower Heartleaf Hexastylis naniflora 15
- Dyschoriste oblongifolia Dyschoriste oblongifolia —
E
- Earleaf False Foxglove Agalinis auriculata —
- Earleaf Greenbrier Smilax auriculata 72
- 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 46
- Early Saxifrage Micranthes virginiensis 24
- Early St. Johns Wort; Early St. Johnswort Hypericum apocynifolium —
- Early Whitetop Fleabane Erigeron vernus 87
- Early Winter-cress Barbarea verna —
- Earlyleaf Brome Bromus latiglumis 47
- 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 Columbine Aquilegia canadensis 44
- Eastern Cottonwood Populus deltoides 67
- Eastern False-aloe Manfreda virginica 20
- Eastern False-Dragonhead Physostegia purpurea 26
- Eastern Featherbells Stenanthium gramineum 13
- Eastern Flowering Spurge Euphorbia corollata 67
- Eastern Fox Sedge Carex triangularis —
- Eastern Gamagrass Tripsacum dactyloides 29
- Eastern Goat's-beard Aruncus dioicus 26
- Eastern Grasswort Lilaeopsis chinensis 8
- Eastern Gum Bully Sideroxylon lanuginosum —
- Eastern Hay-scented Fern Dennstaedtia punctilobula —
- Eastern Hemlock Tsuga canadensis 70
- Eastern Leatherwood Dirca palustris 24
- Eastern Milkpea Galactia regularis 72
- Eastern Narrowleaf Sedge Carex amphibola 59
- Eastern Needle Grass Piptochaetium avenaceum 26
- 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 Redbud Cercis canadensis 73
- Eastern Rough Sedge Carex scabrata 59
- Eastern Shooting-star Dodecatheon meadia 27
- Eastern Showy Aster Aster spectabilis —
- Eastern Silvery Aster Aster concolor 93
- Eastern Smooth Beardtongue Penstemon laevigatus 73
- Eastern Star Sedge Carex radiata 59
- Eastern Swamp Privet Forestiera acuminata —
- Eastern Turkeybeard Xerophyllum asphodeloides 8
- Eastern Wahoo Euonymus atropurpurea 65
- Eastern White Pine Pinus strobus 74
- Eastern Winged Sumac; Eastern Flameleaf Sumac; Eastern Flame Leaf Sumac; Eastern Flameleaved Sumac; Eastern Flame Leaved Sumac Rhus copallinum var. copallinum 87
- Eastern Woodland Sedge Carex blanda 59
- Eaton's Ladies'-tresses Spiranthes eatonii 22
- Ebony Spleenwort Asplenium platyneuron 15
- Echinodorus cordifolius subsp. cordifolius Echinodorus cordifolius subsp. cordifolius —
- Echinodorus tenellus Echinodorus tenellus —
- Echinops sphaerocephalus Echinops sphaerocephalus —
- Eggerts Sunflower Helianthus eggertii 95
- Eggleaf Witchgrass Dichanthelium ovale 49
- Elaeagnus umbellata var. parvifolia Elaeagnus umbellata var. parvifolia —
- Elatine rubella Elatine rubella —
- Elegant Hairgrass Aira elegans —
- Elf Orpine Diamorpha smallii 52
- Elliott's Beaksedge Rhynchospora elliottii 39
- Elliott's Bentgrass Agrostis elliottiana 45
- Elliott's Blueberry Vaccinium elliottii 98
- Elliott's Fanpetals Sida elliottii 65
- Elliott's Gentian Gentiana catesbaei —
- Elliott's Goldenrod Solidago elliottii 90
- Elliott's Hairsedge Bulbostylis ciliatifolia var. coarctata —
- Elliott's Lovegrass Eragrostis elliottii 32
- Elliott's Milkpea Galactia elliottii —
- Elliott's Rush Juncus elliottii 44
- Elliott's Sedge Carex elliottii 59
- Elliotts Bluestem Andropogon gyrans 54
- Elliptical Rushfoil Croton willdenowii 73
- Elmleaf Goldenrod Solidago ulmifolia 92
- Elymus magellanicus Elymus magellanicus —
- Elytraria caroliniensis Elytraria caroliniensis —
- Elytraria caroliniensis var. caroliniensis Elytraria caroliniensis var. caroliniensis —
- Emilia sonchifolia Emilia sonchifolia —
- Engelmann's Arrowhead Sagittaria engelmanniana 58
- Englemann's Spikerush Eleocharis engelmannii 34
- English Holly; Christmas Holly Ilex aquifolium —
- English Ivy Hedera helix -85
- English Plantain Plantago lanceolata —
- Entangled Hawthorn Crataegus intricata 83
- Entireleaf Yellow False Foxglove Aureolaria laevigata —
- Epiphyllum oxypetalum Epiphyllum oxypetalum —
- Equisetum hyemale Equisetum hyemale —
- Eragrostis amabilis Eragrostis amabilis —
- Eragrostis ciliaris Eragrostis ciliaris —
- Eragrostis deflexa Eragrostis deflexa —
- Eranthemum pulchellum Eranthemum pulchellum —
- Erechtites hieraciifolia Erechtites hieraciifolia —
- Erect Coinleaf Centella asiatica 8
- Erect Milkpea Galactia erecta 72
- Erect Snoutbean Rhynchosia tomentosa 36
- Erectleaf Witchgrass Dichanthelium erectifolium 49
- Erigeron flagellaris Erigeron flagellaris —
- Eruca vesicaria Eruca vesicaria —
- Eruca vesicaria subsp. sativa Eruca vesicaria subsp. sativa —
- Eryngium aquaticum var. aquaticum Eryngium aquaticum var. aquaticum —
- Eryngium ebracteatum Eryngium ebracteatum —
- Eryngium foetidum Eryngium foetidum —
- Eryngium yuccifolium var. synchaetum Eryngium yuccifolium var. synchaetum 48
- Erythrina corallodendron Erythrina corallodendron —
- Erythrina crista-galli Erythrina crista-galli —
- Eubotrys racemosa Eubotrys racemosa —
- Eubotrys recurva Eubotrys recurva —
- Eucephalus ledophyllus Eucephalus ledophyllus —
- Eucephalus ledophyllus var. covillei Eucephalus ledophyllus var. covillei —
- Euonymus bungeanum Euonymus bungeanum —
- Eupatorium album var. album Eupatorium album var. album —
- Eupatorium rotundifolium var. ovatum Eupatorium rotundifolium var. ovatum —
- Eupatorium rotundifolium var. rotundifolium Eupatorium rotundifolium var. rotundifolium —
- Eupatorium rotundifolium var. saundersii Eupatorium rotundifolium var. saundersii —
- European Black Nightshade; European Black Night Shade Solanum nigrum —
- European Cornsalad Valerianella locusta —
- European Field Pansy Viola arvensis —
- European Gray Willow Salix cinerea —
- European Laurel Cherry Prunus laurocerasus —
- European Lily-of-the-valley Convallaria majalis —
- European Privet Ligustrum vulgare -55
- European Smoke Tree Cotinus coggygria —
- European Spindle Tree Euonymus europaeus —
- Eustachys retusa Eustachys retusa —
- Eustis Lake Beardtongue Penstemon australis 71
- Euthamia graminifolia var. graminifolia Euthamia graminifolia var. graminifolia —
- Euthamia hirtipes Euthamia hirtipes —
- Euthamia minor Euthamia minor —
- Euthamia occidentalis Euthamia occidentalis —
- Evergreen Barberry Berberis julianae —
- Evergreen Candytuft; Perennial Candytuft Iberis sempervirens —
F
- Fairy Beaksedge Rhynchospora pusilla 39
- Fall Panicgrass Panicum dichotomiflorum 49
- Fall Phlox Phlox paniculata 52
- False Boneset Brickellia eupatorioides 23
- False Daisy Eclipta prostrata —
- False Fennel Eupatorium leptophyllum 81
- False Garlic Nothoscordum bivalve 77
- False Goat's-beard Astilbe biternata 13
- False Hop Sedge Carex lupuliformis 59
- False Indigo-bush Amorpha fruticosa 77
- False Maiden-fern Macrothelypteris torresiana —
- False Nettle Boehmeria cylindrica 42
- False Solomon's-seal Maianthemum racemosum 48
- Fascicled Beaksedge Rhynchospora fascicularis 39
- Fatshedera lizei Fatshedera lizei —
- Feather-bristle Beaksedge Rhynchospora oligantha 39
- Featherstem Clubmoss Lycopodiella prostrata 11
- Fennel Foeniculum vulgare —
- Fernald's Tick-trefoil Desmodium fernaldii 69
- Fernleaf Phacelia Phacelia bipinnatifida 48
- Fernleaf Yellow False Foxglove Aureolaria pedicularia 46
- Fescue Sedge Carex festucacea 59
- Festuca arvernensis Festuca arvernensis —
- Feverfew Tanacetum parthenium —
- Few Flower Nut Rush Scleria pauciflora var. pauciflora 12
- Fewflower Beaksedge Rhynchospora rariflora 39
- Fewflower Milkweed Asclepias lanceolata 67
- Fewflower Nutrush Scleria pauciflora 12
- Fewflower Tick-trefoil Desmodium pauciflorum 69
- Fibrous-root Sedge Carex communis 59
- Ficus auriculata Ficus auriculata —
- Fiddle Dock Rumex pulcher —
- Field Burweed Soliva sessilis —
- Field Garlic Allium vineale —
- Field Horsetail Equisetum arvense 13
- Field Paspalum Paspalum laeve 66
- Field Pennycress Thlaspi arvense —
- Field Pepperweed Lepidium campestre —
- Field Pumpkin Cucurbita pepo —
- Field Pussytoes Antennaria neglecta 23
- Field Sorrel Rumex acetosella —
- Field Thistle Cirsium discolor 90
- Fimbristylis caroliniana Fimbristylis caroliniana 15
- Fimbristylis castanea Fimbristylis castanea 15
- Fimbristylis puberula Fimbristylis puberula 15
- Fimbristylis thermalis Fimbristylis thermalis —
- Fire Pink Silene virginica 42
- Five-stamen Chickweed Cerastium semidecandrum —
- Fiveangle Dodder Cuscuta pentagona 43
- Fivelobe Cucumber Cayaponia boykinii 8
- Flame Azalea Rhododendron calendulaceum 90
- Flat Pea Lathyrus sylvestris —
- Flatrock Onion; Flat Rock Onion Allium speculae —
- Flattened Oatgrass Danthonia compressa 33
- Flattened Pipewort Eriocaulon compressum 14
- Flaveria trinervia Flaveria trinervia —
- Flaxleaf False Foxglove Agalinis linifolia 54
- 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 8
- Florida Bluehearts Buchnera floridana 15
- Florida Cottonweed Froelichia floridana 15
- Florida Hedge-nettle Stachys floridana —
- Florida Hoary-pea Tephrosia florida 48
- Florida Hobblebush Agarista populifolia 25
- Florida Ladies'-tresses Spiranthes floridana —
- Florida Maple Acer barbatum 85
- Florida Mudmidget Wolffiella floridana 8
- Florida Paspalum Paspalum floridanum 66
- Florida Peanut-grass Amphicarpum muehlenbergianum 8
- Florida Pellitory Parietaria floridana 25
- Florida Sanicle; Florida Snakeroot; Canadian Blacksnakeroot; Florida Snake Root; Canadian Black Snakeroot; Canadian Black Snake Root Sanicula canadensis var. floridana 15
- Florida Sedge Carex floridana 59
- Florida Tick-trefoil Desmodium tortuosum —
- Florida Ticktrefoil; Florida Tick Trefoil Desmodium floridanum —
- Florida Yellow Bladderwort Utricularia floridana 22
- Florida Yellow Flax Linum floridanum 44
- Florida Yellow-eyed-grass Xyris difformis var. floridana 36
- Flowering Dogwood Cornus florida 100
- Fly-poison Amianthium muscitoxicum 8
- Foamflower Tiarella wherryi —
- Forestiera godfreyi Forestiera godfreyi —
- Forked Bluecurls Trichostema dichotomum 32
- Forked Fimbry Fimbristylis dichotoma —
- Forked Rush Juncus dichotomus 44
- Forktip Three Awn; Forked Threeawn; Fork Tip Three Awn; Forked Three Awn; Forktip Threeawn; Fork Tip Threeawn Aristida basiramea —
- Four-angle Flatsedge Cyperus tetragonus 38
- 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 59
- Foxglove Beardtongue Penstemon digitalis 71
- Foxtail Clubmoss Lycopodiella alopecuroides 11
- Foxtail Millet Setaria italica —
- Fragrant Beaksedge Rhynchospora odorata —
- Fragrant Bedstraw Galium triflorum 54
- Fragrant Flatsedge Cyperus odoratus 38
- Fragrant Rabbit-tobacco Pseudognaphalium obtusifolium 35
- Fragrant Spikesedge Kyllinga odorata 38
- Fragrant Sumac Rhus aromatica 81
- Fragrant Water-lily Nymphaea odorata 57
- Frank's Sedge Carex frankii 59
- Fraser Magnolia Magnolia fraseri 71
- Fraser's Loosestrife Lysimachia fraseri 58
- French Tamarisk Tamarix gallica —
- Fringed Bluestar Amsonia ciliata 25
- 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. elliottii —
- Fringed Nut Rush Scleria ciliata var. glabra 12
- Fringed Nutrush Scleria ciliata 12
- Fringed Polygala Polygala paucifolia 29
- Fringed Quickweed Galinsoga quadriradiata —
- Fringed Sedge Carex crinita 59
- Fringed Star-grass Hypoxis juncea 17
- Fringed Yellow-eyed-grass Xyris fimbriata 36
- Fringetree Chionanthus virginicus 42
- Frost Aster Aster pilosus 93
- Frost Grape Vitis vulpina 73
- Frosted Hawthorn Crataegus pruinosa 83
- Fuirena breviseta Fuirena breviseta 8
- Fuirena pumila Fuirena pumila 8
- Fuzzy Wuzzy Sedge Carex hirsutella 59
G
- Gaillardia aristata Gaillardia aristata —
- Galactia macreei Galactia macreei —
- Galax Galax urceolata 17
- Galax aphylla Galax aphylla —
- Galium filifolium Galium filifolium —
- Galium obtusum subsp. filifolium Galium obtusum subsp. filifolium —
- Galium orizabense subsp. laevicaule Galium orizabense subsp. laevicaule —
- Gaping Grass Steinchisma hians 49
- Garden Asparagus Asparagus officinalis —
- Garden Balsam Impatiens balsamina —
- Garden Cosmos Cosmos bipinnatus —
- Garden Pea Pisum sativum —
- Garden Petunia Petunia x atkinsiana —
- Garden Radish Raphanus sativus —
- Garden Sorrel; Green Sorrel Rumex acetosa —
- Garden Star-of-Bethlehem Ornithogalum umbellatum —
- Garden Tomato Solanum lycopersicon —
- Garden Vetch Vicia sativa —
- Gattingers Eastern Bluestar Amsonia tabernaemontana var. salicifolia 25
- Gaura mollis Gaura mollis —
- Gaura sinuata Gaura sinuata —
- Gaylussacia frondosa var. tomentosa Gaylussacia frondosa var. tomentosa —
- Gaylussacia tomentosa Gaylussacia tomentosa —
- Gentianella quinquefolia Gentianella quinquefolia 29
- Georgia Aster Symphyotrichum georgianum 93
- Georgia Bulrush Scirpus georgianus 45
- Georgia Calamint Clinopodium georgianum 36
- Georgia Frostweed Crocanthemum georgianum 32
- Georgia Holly Ilex decidua var. longipes —
- Georgia Indigo-bush Amorpha georgiana 77
- Georgia Rush Juncus georgianus 44
- Gerardia setacea Gerardia setacea —
- German Iris Iris germanica —
- Giant Arrowhead Sagittaria montevidensis —
- Giant Bristlegrass Setaria magna 43
- Giant Cane Arundinaria gigantea 44
- Giant Goldenrod Solidago gigantea 90
- Giant Ironweed Vernonia gigantea 75
- Giant Ragweed Ambrosia trifida 67
- Giant Reed Arundo donax -30
- Giant Sedge Carex gigantea 59
- Giant Sunflower Helianthus giganteus 95
- Giant Whitetop Sedge Dichromena latifolia 39
- Giant-spiral Ladies'-tresses Spiranthes longilabris —
- Glade Fern Diplazium pycnocarpon 19
- Glade Lobelia Lobelia glandulosa 48
- Glandularia X hybrida Glandularia X hybrida —
- Glaucous Evening Primrose Oenothera tetragona 81
- Globe Amaranth Gomphrena globosa —
- Globe Beaksedge Rhynchospora globularis 39
- Globe Flatsedge Cyperus echinatus 38
- Globefruit Seedbox Ludwigia sphaerocarpa 65
- Globular Prairie Cone Flower Ratibida pinnata —
- Glossy Privet Ligustrum lucidum -85
- Glossyseed Star-grass Hypoxis sessilis 17
- Glowing Nightshade Solanum gracile 73
- Glyceria fluitans Glyceria fluitans —
- Glyceria septentrionalis var. arkansana Glyceria septentrionalis var. arkansana —
- Goat's-rue Tephrosia virginiana 48
- Goats Beard Aruncus dioicus var. dioicus 26
- Godfrey's Sedge Carex godfreyi 59
- Golden Bamboo Phyllostachys aurea -55
- Golden Colicroot Aletris aurea 14
- Golden Crownbeard Verbesina encelioides —
- Golden Hedge-hyssop Gratiola aurea 8
- Golden Ragwort Packera aurea 85
- Golden St. John's-wort Hypericum frondosum 72
- Golden Tickseed Coreopsis tinctoria 68
- Golden-club Orontium aquaticum 33
- Golden-mane Tickseed Coreopsis basalis —
- Goldenseal Hydrastis canadensis 8
- Gonolobus gonocarpos Gonolobus gonocarpos —
- Graceful Goldenrod Solidago gracillima 90
- Graceful Sedge Carex gracillima 59
- Granite Flatsedge Cyperus granitophilus 38
- Granite Stonecrop Sedum pusillum 52
- Grass Leaf Gayfeather Liatris pilosa 56
- Grass-leaved Flat-top Goldenrod Euthamia graminifolia 94
- Grass-leaved Starwort Stellaria graminea —
- Grassleaf Barbara's-buttons Marshallia graminifolia 13
- Grassleaf Ladies'-tresses Spiranthes praecox 22
- Grassleaf Lettuce Lactuca graminifolia 88
- Grassleaf Roseling Cuthbertia graminea 55
- Grassleaf Rush Juncus marginatus 44
- Grasslike Fimbry Fimbristylis miliacea —
- Grassy Arrowhead Sagittaria graminea 58
- Gray Birch Betula populifolia —
- Gray Chickweed Cerastium brachypetalum —
- Gray Dogwood Cornus racemosa 95
- Gray Everlasting Gamochaeta coarctata —
- Gray Goldenrod Solidago nemoralis 94
- Gray Goldenrod; Old Field Goldenrod Solidago nemoralis var. nemoralis —
- Gray Oak; Northern Red Oak; Grey Oak Quercus rubra var. ambigua 88
- Gray-hairy Wild Indigo Baptisia cinerea 76
- Gray's Beaksedge Rhynchospora grayi 39
- Gray's Flatsedge Cyperus grayi 38
- Gray's Sedge Carex grayi 59
- Great Blue Lobelia Lobelia siphilitica 49
- Great Indian-plantain Arnoglossum muehlenbergii 41
- Great Plains Flatsedge Cyperus lupulinus 38
- Greater Marsh St. John's-wort Triadenum walteri 68
- Greater Marsh St. Johnswort Hypericum walteri 68
- Greater Straw Sedge Carex normalis 59
- Greater Tickseed Coreopsis major 68
- Green Adder's-mouth Malaxis unifolia 8
- Green Alder Alnus crispa —
- Green And Gold; Greenandgold Chrysogonum virginianum var. virginianum —
- Green Arrow-arum Peltandra virginica 8
- Green Ash Fraxinus pennsylvanica 75
- Green Bristlegrass Setaria viridis —
- Green Carpetweed Mollugo verticillata —
- Green Dragon Arisaema dracontium 11
- Green False-hellebore Veratrum viride 15
- Green Field-speedwell Veronica agrestis —
- Green Flatsedge Cyperus virens 38
- Green Hawthorn Crataegus viridis 83
- Green Hawthorn Crataegus viridis var. viridis —
- Green Milkweed Asclepias viridiflora 67
- Green-fly Orchid Epidendrum conopseum 8
- Green-violet Hybanthus concolor 15
- Greenish-white Sedge Carex albolutescens 59
- Grooved Beaksedge Rhynchospora sulcata 39
- Groovestem Indian Plantain Arnoglossum plantagineum —
- Ground Juniper Juniperus communis var. depressa 59
- Ground-ivy Glechoma hederacea —
- Groundsel-tree Baccharis halimifolia 81
- Guelder-rose Viburnum Viburnum opulus —
- Guilleminea densa Guilleminea densa —
- Guilleminea densa var. aggregata Guilleminea densa var. aggregata —
- Gulf Coast Spikerush Eleocharis cellulosa 34
- Gulf Coast Swallow-wort Cynanchum palustre —
- Gulf Croton Croton punctatus 73
- Gulf Sebastian-bush Ditrysinia fruticosa 20
- Gypsophila paniculata Gypsophila paniculata —
H
- Hainardia cylindrica Hainardia cylindrica —
- Hair-awn Muhly Muhlenbergia capillaris 27
- Hairy Alumroot Heuchera villosa 25
- Hairy Angelica Angelica venenosa 28
- Hairy Bedstraw Galium pilosum 54
- Hairy Beggarticks Bidens alba —
- Hairy Bittercress Cardamine hirsuta —
- Hairy Blueberry Vaccinium hirsutum 98
- Hairy Buttercup Ranunculus sardous —
- Hairy Cat's-ear Hypochaeris radicata —
- Hairy Cluster-vine Jacquemontia tamnifolia —
- Hairy Crabgrass Digitaria sanguinalis —
- Hairy Fleabane Conyza bonariensis —
- Hairy Forked Nailwort Paronychia fastigiata 8
- Hairy Four-o'clock Mirabilis albida 29
- Hairy Goldenrod Solidago hispida 90
- Hairy Hawkweed Hieracium longipilum —
- Hairy Jointgrass Arthraxon hispidus —
- Hairy Lespedeza Lespedeza hirta 71
- Hairy Lettuce Lactuca hirsuta 88
- Hairy Lipfern Cheilanthes lanosa 8
- Hairy Maiden-fern Thelypteris hispidula —
- Hairy Mock-orange Philadelphus hirsutus 36
- Hairy Phlox Phlox amoena 52
- Hairy Pinweed Lechea mucronata 22
- Hairy Seedbox Ludwigia pilosa 65
- Hairy Skullcap Scutellaria elliptica 37
- Hairy Small-leaf Tick-trefoil Desmodium ciliare 69
- Hairy Solomon's-seal Polygonatum pubescens 19
- Hairy Spiderwort Tradescantia hirsuticaulis 55
- Hairy St. John's-wort Hypericum setosum 68
- Hairy Sunflower Helianthus hirsutus 95
- Hairy Sweet-cicely Osmorhiza claytonii 24
- Hairy Thoroughwort Eupatorium pubescens 81
- Hairy Umbrella Sedge Fuirena squarrosa 8
- Hairy Vetch Vicia villosa —
- Hairy Wild-petunia Ruellia humilis 36
- Hairy Wood Rush; Hairy Woodrush Luzula acuminata var. acuminata 12
- Hairy Woodland Brome Bromus pubescens 47
- Hairy Woodrush Luzula acuminata 12
- Hairy-fruit Chervil Chaerophyllum tainturieri 15
- Hairy-jointed Meadow-parsnip Thaspium barbinode 24
- Halberd-leaf Rosemallow Hibiscus laevis 77
- Halberd-leaf Tearthumb Persicaria arifolia 75
- Halberd-leaf Yellow Violet Viola hastata 77
- Halesia parviflora Halesia parviflora —
- Hammock Sedge Carex fissa —
- Harper's Beaksedge Rhynchospora harperi 39
- Harper's Fimbry Fimbristylis perpusilla 15
- Harper's Searocket Cakile harperi 19
- Harper's Yellow-eyed-grass Xyris scabrifolia —
- Harpers St. Johns Wort; Harpers St. Johnswort Hypericum harperi —
- Harvey's Beaksedge Rhynchospora harveyi 39
- Hazel Alder Alnus serrulata 66
- Hazel Dodder Cuscuta coryli 43
- Heartleaf Aster Symphyotrichum cordifolium 93
- Heartleaf Golden-Alexanders Zizia aptera 46
- Heartleaf Nettle Urtica chamaedryoides 48
- Heartleaf Peppervine Ampelopsis cordata 57
- Heartleaf Sandmat Euphorbia cordifolia 64
- Heartleaf Skullcap Scutellaria ovata 37
- Heavenly Bamboo Nandina domestica -80
- Hedera canariensis Hedera canariensis —
- Hedera nepalensis Hedera nepalensis —
- Hedge False Bindweed Calystegia sepium 33
- Hedge Mustard Sisymbrium officinale —
- Hedge Mustard; Hedgemustard; Small Tumbleweed Mustard; Small Tumbleweedmustard; Small Tumble Weed Mustard; Small Tumble Weedmustard Sisymbrium loeselii —
- Hedgehog Woodrush Luzula echinata 13
- Helenium amarum var. amarum Helenium amarum var. amarum —
- Helenium autumnale var. autumnale Helenium autumnale var. autumnale —
- Helenium microcephalum Helenium microcephalum —
- Helianthus debilis var. cucumerifolius Helianthus debilis var. cucumerifolius —
- Helianthus radula Helianthus radula —
- Heliopsis gracilis Heliopsis gracilis —
- Helleborus orientalis Helleborus orientalis —
- 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 —
- Hercules-club Zanthoxylum clava-herculis 57
- Heterosperma pinnatum Heterosperma pinnatum —
- Heterotheca camporum var. glandulissimum Heterotheca camporum var. glandulissimum —
- Heterotheca graminifolia Heterotheca graminifolia —
- Heuchera villosa var. intermedia Heuchera villosa var. intermedia —
- Hexastylis arifolia var. arifolia Hexastylis arifolia var. arifolia 15
- Hexastylis arifolia var. callifolia Hexastylis arifolia var. callifolia —
- Hibiscus abelmoschus Hibiscus abelmoschus —
- Hibiscus esculentus Hibiscus esculentus —
- High Mallow Malva sylvestris —
- Highland Doghobble Leucothoe axillaris var. editorum 25
- Hill Cane Arundinaria appalachiana 44
- Hill Hawthorn Crataegus collina 83
- Hillsboro Three-awn Aristida purpurascens var. tenuispica 21
- Hillside Blueberry Vaccinium pallidum 98
- Himalayan Blackberry Rubus bifrons —
- Hirsute Sedge Carex complanata 59
- Hoary Alyssum Berteroa incana —
- Hoary Azalea Rhododendron canescens 90
- Hoary Mountain-mint Pycnanthemum incanum 40
- Hoary Puccoon Lithospermum canescens 38
- Hoary Tick-trefoil Desmodium canescens 69
- Hog Plum Prunus umbellata 100
- Hogpeanut; American Hogpeanut; Hog Peanut; American Hog Peanut Amphicarpaea bracteata var. bracteata 44
- Hollow Joe-pye-weed Eupatorium fistulosum 85
- Holly-flax Santolina chamaecyparissus —
- Honey Locust Gleditsia triacanthos 50
- Honeycup Zenobia pulverulenta 10
- Hooded Arrowhead Sagittaria calycina 58
- Hooded Blue Violet Viola sororia 77
- Hooded Pitcherplant Sarracenia minor 36
- Hooked Buttercup Ranunculus recurvatus 51
- Hooked Buttercup; Recurved Buttercuo Ranunculus recurvatus var. recurvatus —
- Hooker's Milkwort Polygala hookeri —
- Hop Sedge Carex lupulina 59
- 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
- Houstonia longifolia var. tenuifolia Houstonia longifolia var. tenuifolia —
- Houstonia purpurea var. purpurea Houstonia purpurea var. purpurea —
- Hoya carnosa Hoya carnosa —
- Hudsonia ericoides Hudsonia ericoides —
- Huger's Carrion-flower Smilax hugeri 68
- Humped Bladderwort Utricularia gibba 22
- Hydrilla Hydrilla verticillata —
- Hydrocotyle prolifera Hydrocotyle prolifera —
- Hydrocotyle verticillata var. verticillata Hydrocotyle verticillata var. verticillata —
- Hydrolea corymbosa Hydrolea corymbosa —
- Hygrophila polysperma Hygrophila polysperma —
- Hymenocallis coronaria Hymenocallis coronaria —
- Hymenopappus scabiosaeus Hymenopappus scabiosaeus —
- Hymenophyllum tunbrigense Hymenophyllum tunbrigense —
- Hymenoxys hoopesii Hymenoxys hoopesii —
- Hymenoxys lemmonii Hymenoxys lemmonii —
- Hypericum hypericoides subsp. hypericoides Hypericum hypericoides subsp. hypericoides —
- Hypericum mutilum var. latisepalum Hypericum mutilum var. latisepalum —
- Hypericum nitidum Hypericum nitidum —
- Hypochaeris brasiliensis var. tweedyi Hypochaeris brasiliensis var. tweedyi —
- Hypochaeris microcephala Hypochaeris microcephala —
- Hypochaeris microcephala var. albiflora Hypochaeris microcephala var. albiflora —
- Hypoxis leptocarpa Hypoxis leptocarpa —
- Hypoxis micrantha Hypoxis micrantha —
- Hyptis mutabilis Hyptis mutabilis —
- Hyssop Skullcap Scutellaria integrifolia 37
- Hyssopleaf Hedge-nettle Stachys hyssopifolia 56
- Hyssopleaf Thoroughwort Eupatorium hyssopifolium 81
- 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 ciliospinosa Ilex ciliospinosa —
- Ilex latifolia Ilex latifolia —
- Ilex paraguariensis Ilex paraguariensis —
- Ilex pedunculosa Ilex pedunculosa —
- Ilex pernyi Ilex pernyi —
- Ilex rotunda Ilex rotunda —
- Illinois Bundleflower Desmanthus illinoensis 25
- Illinois Pondweed Potamogeton illinoensis 42
- 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 indica —
- Indian-hemp Apocynum cannabinum 58
- Indian-pipe Monotropa uniflora 20
- Indian-tobacco Lobelia inflata 48
- Indigofera amblyantha Indigofera amblyantha —
- Indigofera decora Indigofera decora —
- Indigofera suffruticosa Indigofera suffruticosa —
- Inga edulis Inga edulis —
- Inkberry Ilex glabra 95
- Intermediate Dogbane Apocynum x floribundum —
- Intermediate Mermaid Weed Proserpinaca intermedia —
- Intermediate Wood-fern Dryopteris intermedia 23
- Interrupted Fern Osmunda claytoniana 28
- Inula britannica Inula britannica —
- Ipomoea alba Ipomoea alba —
- Ipomoea cordatotriloba var. cordatotriloba Ipomoea cordatotriloba var. cordatotriloba —
- Iris hexagona Iris hexagona —
- Iris verna var. verna Iris verna var. verna 57
- Irisleaf Yellow-eyed-grass Xyris iridifolia 36
- Isoëtes hyemalis Isoëtes hyemalis —
- Isoëtes piedmontana Isoëtes piedmontana —
- Italian Rye Grass Lolium perenne subsp. multiflorum —
- Ivy-leaved Crowfoot Ranunculus hederaceus —
- Ivyleaf Morning-glory Ipomoea hederacea —
- Ivyleaf Speedwell Veronica hederifolia —
J
- Jagged Chickweed Holosteum umbellatum —
- James's Sedge Carex jamesii 60
- Japanese Aralia Fatsia japonica —
- Japanese Barberry Berberis thunbergii —
- Japanese Bristlegrass Setaria faberi —
- Japanese Brome Bromus japonicus —
- Japanese Climbing Fern Lygodium japonicum -55
- Japanese Clover Kummerowia striata —
- Japanese Holly Ilex crenata —
- Japanese Honeysuckle Lonicera japonica -85
- Japanese Knotweed Polygonum cuspidatum -85
- Japanese Maple Acer palmatum —
- Japanese Mazus Mazus japonicus —
- Japanese Millet Echinochloa frumentacea —
- Japanese Privet Ligustrum japonicum -85
- Japanese Redtip; Japanese Red Tip Photinia glabra —
- Japanese Snowball Viburnum Viburnum plicatum —
- Japanese Stilt-grass Microstegium vimineum -85
- Japanese Virgin's-bower Clematis terniflora -55
- Japanese-spurge Pachysandra terminalis —
- Jatropha integerrima Jatropha integerrima —
- Jerusalem Artichoke Helianthus tuberosus —
- Jerusalem Cherry Solanum pseudocapsicum -30
- Jimsonweed Datura stramonium —
- Johnny Jump-up Viola tricolor —
- Johnson Grass Sorghum halepense -55
- Jumpseed Persicaria virginiana 75
- Juncus brachycephalus Juncus brachycephalus —
- Juncus bufonius var. bufonius Juncus bufonius var. bufonius —
- Juncus effusus var. solutus Juncus effusus var. solutus —
- Juncus marginatus var. biflorus Juncus marginatus var. biflorus —
- Juncus pelocarpus var. crassicaudex Juncus pelocarpus var. crassicaudex —
- Jungle-rice Echinochloa colona —
- Juniper-leaf Polypremum procumbens 16
- Juniperus virginiana var. virginiana Juniperus virginiana var. virginiana —
- Justicia brandegeeana Justicia brandegeeana —
- Justicia carnea Justicia carnea —
- Justicia ovata var. ovata Justicia ovata var. ovata —
K
- Kalm Brome; Canada Brome; Arctic Brome; Prairie Brome Bromus kalmii —
- Kalmia hirsuta Kalmia hirsuta —
- Keeled Bulrush Isolepis carinata 45
- Keever's Onion Allium cuthbertii —
- Kenilworth Ivy Cymbalaria muralis —
- Kentucky Bluegrass Poa pratensis —
- Kentucky Coffeetree Gymnocladus dioica 26
- Kentucky Yellowwood Cladrastis kentukea 17
- Kidneyleaf Buttercup Ranunculus abortivus 53
- Kidneyleaf Mud-plantain Heteranthera reniformis 12
- Kidneyleaf Rosinweed Silphium compositum 51
- Kidneyleaf Twayblade Listera smallii —
- King Ranch Bluestem; Yellow Bluestem Bothriochloa ischaemum —
- King Ranch Bluestem; Yellow Bluestem Bothriochloa ischaemum var. songarica —
- Knotgrass Paspalum distichum 66
- Knotted Hedge-parsley Torilis nodosa —
- Korean Clover Kummerowia stipulacea —
- Krals Sedge Carex kraliana 59
- Kudzu Pueraria montana -85
- Kudzu Pueraria montana var. lobata —
- Kunth's Maiden-fern Thelypteris kunthii —
- Kyllinga brevifolia Kyllinga brevifolia —
L
- Lablab purpureus Lablab purpureus —
- Lace Lovegrass Eragrostis capillaris 32
- Lacelip Ladies'-tresses Spiranthes laciniata 22
- Ladder Brake Pteris vittata —
- Lady Lupine Lupinus villosus 77
- Lambs Quarters Chenopodium album 51
- Lamiastrum galeobdolon Lamiastrum galeobdolon —
- Lance Leaf Trillium Trillium lancifolium —
- Lanceleaf Anemone Anemone lancifolia 28
- Lanceleaf Blanket-flower Gaillardia aestivalis 52
- Lanceleaf Figwort Scrophularia lanceolata 32
- Lanceleaf Greenbrier Smilax smallii 71
- Lanceleaf Loosestrife Lysimachia lanceolata 58
- Lanceleaf Ragweed Ambrosia bidentata 67
- Lanceleaf Rattlebox Crotalaria lanceolata —
- Lanceleaf Rose-gentian Sabatia difformis 14
- Lanceleaf Tickseed Coreopsis lanceolata 69
- Lanceleaf Violet Viola lanceolata 77
- Lanceleaf Wild Licorice Galium lanceolatum 54
- Lantana montevidensis Lantana montevidensis —
- Laportea aestuans Laportea aestuans —
- Lappula occidentalis Lappula occidentalis —
- Lappula occidentalis var. occidentalis Lappula occidentalis var. occidentalis —
- Large Beaksedge Rhynchospora macra 39
- Large Gallberry Ilex coriacea 97
- Large Solomons Seal; King Solomons Seal Polygonatum biflorum var. commutatum —
- 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 15
- Large-flowered Trillium Trillium grandiflorum 25
- Largebract Tick-trefoil Desmodium cuspidatum 69
- Largeflower Aster Symphyotrichum grandiflorum —
- Largeflower Tickseed Coreopsis grandiflora 68
- Largefruit Black-snakeroot Sanicula trifoliata 15
- Largeleaf Grass-of-Parnassus Parnassia grandifolia 17
- Largeleaf Marsh-pennywort Hydrocotyle bowlesioides —
- Largeleaf Pennywort Hydrocotyle bonariensis —
- Largeseed Forget-me-not Myosotis macrosperma 36
- Larkspur-leaf Tickseed Coreopsis delphiniifolia 68
- Late Figwort Scrophularia marilandica 34
- Late Purple Aster Symphyotrichum patens 93
- Late-flowering Thoroughwort Eupatorium serotinum 85
- Laurel Greenbrier Smilax laurifolia 71
- Laurel Oak Quercus laurifolia 88
- Lawn Blue Eyed Grass Sisyrinchium rosulatum —
- Lawn Marsh-pennywort Hydrocotyle sibthorpioides —
- Lax Blazing-star Liatris secunda 56
- Lax Hornpod Mitreola petiolata 13
- Le Conte's Flatsedge Cyperus lecontei 38
- Leafy Bladderwort Utricularia foliosa —
- Leafy Bulrush Scirpus polyphyllus 45
- Leafy Pondweed Potamogeton foliosus 42
- Least Duckweed Lemna minuta 31
- Leatherleaf Chamaedaphne calyculata 66
- Leatherleaf Mahonia Mahonia bealei —
- Leatherleaf Viburnum Viburnum rhytidophyllum —
- Leathery Rush Juncus coriaceus 44
- Leavenworth's Goldenrod Solidago leavenworthii 90
- Leavenworth's Sedge Carex leavenworthii 59
- LeConte's Thistle Carduus lecontei 87
- LeConte's Violet Viola affinis 77
- Leggett's Pinweed Lechea pulchella 22
- Lemon Bee Balm Monarda citriodora —
- Lemon-yellow False Golden-aster Heterotheca camporum —
- Lentil Vetch Vicia tetrasperma —
- Leontodon hispidus Leontodon hispidus —
- Leonurus sibiricus Leonurus sibiricus —
- Lepidium lasiocarpum Lepidium lasiocarpum —
- Leptamnium virginianum Leptamnium virginianum —
- Leptochloa fusca subsp. uninervia Leptochloa fusca subsp. uninervia —
- Lepturus repens Lepturus repens —
- Lespedeza hirta subsp. curtissii Lespedeza hirta subsp. curtissii —
- Lespedeza hirta var. curtissii Lespedeza hirta var. curtissii 70
- Lespedeza virgata Lespedeza virgata —
- Lesser Balloon-vine Cardiospermum halicacabum —
- Lesser Burdock Arctium minus —
- Lesser Chickweed Stellaria pallida —
- Lesser Clearweed Pilea fontana 21
- Lesser Duckweed Lemna aequinoctialis 31
- Lesser Ladies'-tresses Spiranthes ovalis 22
- Lesser Quaking-grass Briza minor —
- Lesser Snakeroot Ageratina aromatica 85
- Lesser Swine-cress Lepidium didymum —
- Lettuceleaf Saxifrage Saxifraga micranthidifolia —
- Liatris acidota Liatris acidota —
- Liatris elegans Liatris elegans —
- Liatris gracilis Liatris gracilis —
- Liatris graminifolia Liatris graminifolia —
- Liatris pauciflora Liatris pauciflora —
- Liatris punctata Liatris punctata —
- Liatris spicata var. spicata Liatris spicata var. spicata 56
- Liatris tenuifolia Liatris tenuifolia —
- Licorice Bedstraw Galium circaezans 54
- Lilium catesbaei Lilium catesbaei —
- Lily-of-the-valley-vine Salpichroa origanifolia —
- Limestone Adders Tongue Ophioglossum engelmannii 8
- Limestone Forest Sedge Carex superata 59
- Limestone Meadow Sedge Carex granularis 59
- Lindheimer's Croton Croton lindheimerianus —
- Lindheimers Witch Grass Dichanthelium acuminatum subsp. lindheimeri 49
- Lindley's Butterfly-bush Buddleja lindleyana —
- Lined Sedge Carex striatula 59
- Linum perenne Linum perenne —
- Lion's-foot Rattlesnake-root Prenanthes serpentaria —
- Little Barley Hordeum pusillum 46
- Little Bluestem Schizachyrium scoparium 54
- Little Bluestem Schizachyrium scoparium var. scoparium —
- Little Brown Jug Hexastylis arifolia 16
- Little Duckweed Lemna obscura 31
- Little Floating-heart Nymphoides cordata 23
- Little Heartleaf Hexastylis minor 15
- Little Ladies'-tresses Spiranthes tuberosa 22
- Little Lovegrass Eragrostis minor —
- 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 —
- 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 —
- Lobed Spleenwort Asplenium pinnatifidum 15
- Lobed Tickseed Coreopsis auriculata 68
- Lobelia chinensis Lobelia chinensis —
- Lobelia flaccidifolia Lobelia flaccidifolia —
- Loblolly Bay Gordonia lasianthus 49
- Loblolly Pine Pinus taeda 75
- Lolium perenne subsp. perenne Lolium perenne subsp. perenne —
- Long Beach Seedbox Ludwigia brevipes 65
- Long Leaf Panic Grass; Redtop Panic Grass Panicum rigidulum var. pubescens —
- Long Stalk Aster Symphyotrichum dumosum var. dumosum 93
- Long-leaved Panicgrass Panicum longifolium 49
- Long-spurred Violet Viola rostrata 77
- Long-stem Adder's-tongue Ophioglossum petiolatum —
- Long's Bittercress Cardamine longii 40
- Long's Rush Juncus longii 44
- Longbeak Arrowhead Sagittaria australis 58
- Longbeak Beaksedge Rhynchospora scirpoides 39
- 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 42
- Longleaf Spikegrass Chasmanthium sessiliflorum 36
- Longleaf Three-awn Aristida palustris 21
- Longleaf Wedgescale Sphenopholis filiformis 8
- Longs Sedge Carex longii 59
- Longspine Sandbur Cenchrus longispinus 49
- Longstalk False-pimpernel Lindernia dubia var. anagallidea 23
- Longstyle Sweet-cicely Osmorhiza longistylis 24
- Lonicera caprifolium Lonicera caprifolium —
- Loomis's Loosestrife Lysimachia loomisii 58
- Loomiss Mountain Mint Pycnanthemum loomisii 40
- Loose Water-milfoil Myriophyllum laxum 33
- Looseflower Water-willow Justicia ovata 45
- Loosehead Beaksedge Rhynchospora chalarocephala 39
- Lopsided Rush Juncus secundus 44
- Louisiana Sedge Carex louisianica 59
- Louisiana Unicorn-plant Proboscidea louisianica —
- Low Hop Clover Trifolium campestre —
- Low Nutrush Scleria verticillata 12
- Low Pinebarren Milkwort Polygala ramosa —
- Low Rattlebox Crotalaria rotundifolia 57
- Low Spearwort Ranunculus pusillus 51
- Low Spikesedge Kyllinga pumila 15
- Low St. John's-wort Hypericum stragulum 72
- Low Woodland Sedge Carex socialis 59
- Lowland Bladder Fern Cystopteris protrusa 8
- Lowland Loosestrife Lysimachia hybrida 58
- Lowland Rotala Rotala ramosior 15
- Ludwigia arcuata Ludwigia arcuata —
- Ludwigia erecta Ludwigia erecta —
- Ludwigia grandiflora Ludwigia grandiflora —
- Ludwigia linearis var. puberula Ludwigia linearis var. puberula —
- Ludwigia peploides subsp. glabrescens Ludwigia peploides subsp. glabrescens —
- Ludwigia spathulata Ludwigia spathulata —
- Lupine Scurfpea Orbexilum lupinellum —
- Lychnis flos-cuculi Lychnis flos-cuculi —
- Lyonia ferruginea Lyonia ferruginea —
- Lyreleaf Sage Salvia lyrata 55
M
- Maackia amurensis Maackia amurensis —
- Mad-dog Skullcap Scutellaria lateriflora 37
- Magnolia acuminata var. subcordata Magnolia acuminata var. subcordata —
- Mahonia nervosa Mahonia nervosa —
- Maianthemum racemosum subsp. racemosum Maianthemum racemosum subsp. racemosum —
- Maidencane Panicum hemitomon —
- Maidenhair Spleenwort Asplenium trichomanes 15
- Maidenhair Tree Ginkgo biloba —
- Malabar Sprangletop Leptochloa fusca —
- Malacothamnus helleri Malacothamnus helleri —
- Malaysian False-pimpernel Lindernia crustacea —
- Maleberry Lyonia ligustrina 73
- Malvaviscus arboreus Malvaviscus arboreus —
- Malvaviscus arboreus var. drummondii Malvaviscus arboreus var. drummondii —
- Manhart's Sedge Carex manhartii 59
- Many-flowered Grass-pink Calopogon multiflorus —
- Many-flowered Witchgrass Dichanthelium polyanthes 49
- Many-spike Flatsedge Cyperus polystachyos 38
- Manyflower Flatsedge Cyperus lancastriensis 38
- Manyflower Marsh-pennywort Hydrocotyle umbellata 45
- Manyhead Rush Juncus polycephalus 44
- Mapleleaf Viburnum Viburnum acerifolium 77
- Marginal Wood-fern Dryopteris marginalis 23
- Marijuana Cannabis sativa —
- Marine-ivy Cissus trifoliata —
- Maritime Bluestem Andropogon glomeratus var. pumilus 54
- Maroon Carolina Milkvine Matelea carolinensis 19
- Marsh Blue Violet Viola cucullata 79
- Marsh Bristlegrass Setaria parviflora 43
- Marsh Dewflower Aneilema keisak -85
- Marsh Eryngo Eryngium aquaticum 48
- Marsh Fern Thelypteris palustris 35
- Marsh Ladies'-tresses Spiranthes odorata 22
- Marsh Mermaid-weed Proserpinaca palustris 8
- Marsh Mermaidweed; Southern Mermaid Weed Proserpinaca palustris var. palustris 8
- Marsh Muhly Muhlenbergia racemosa —
- Marsh Parsley Cyclospermum leptophyllum —
- Marsh Rose-gentian Sabatia dodecandra 14
- Marsh Seedbox Ludwigia palustris 65
- Marshpepper Smartweed Persicaria hydropiper —
- Marvel-of-Peru Mirabilis jalapa —
- Maryland Black-snakeroot Sanicula marilandica 17
- Maryland Butterfly-pea Clitoria mariana 36
- Maryland Golden-aster Chrysopsis mariana 74
- 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 66
- Mascarene Island Leaf-flower Phyllanthus tenellus —
- Mat Chaff-flower Alternanthera caracasana —
- Matelea biflora Matelea biflora —
- Matelea flavidula Matelea flavidula —
- Matelea gonocarpa Matelea gonocarpa —
- Matelea gonocarpos Matelea gonocarpos —
- Matted Sandmat Chamaesyce serpens —
- Matting Witch Grass Dichanthelium meridionale 49
- Matweed Amaranth Amaranthus blitoides —
- Maximilian Sunflower Helianthus maximiliani —
- May Hawthorn Crataegus aestivalis 83
- Mayaca fluviatilis Mayaca fluviatilis 8
- Mayapple Podophyllum peltatum 23
- Maypops Passiflora incarnata 55
- McCartney Rose Rosa bracteata -15
- McCree's Milkpea Galactia volubilis 73
- Meadow Brome Bromus commutatus —
- Meadow Garlic Allium canadense 67
- Meadow Spikemoss Selaginella apoda 18
- Memorial Rose Rosa wichuraiana —
- Mentha piperita Mentha piperita —
- Mexican Fireplant Euphorbia heterophylla —
- Mexican Lovegrass Eragrostis mexicana —
- Mexican Petunia Ruellia simplex —
- Mexican Prickly-poppy Argemone mexicana —
- Mexican Primrose-willow Ludwigia octovalvis —
- Mexican-tea Dysphania ambrosioides 51
- Michaux's Milkweed Asclepias michauxii 67
- Michaux's Saxifrage Saxifraga michauxii 24
- Midland Sedge Carex mesochorea 59
- Midwestern Stiff Goldenrod Solidago rigida —
- Millet Beaksedge Rhynchospora miliacea 39
- Mimosa Albizia julibrissin -85
- Mingled Beakrush Rhynchospora mixta 39
- Mirabilis glabra Mirabilis glabra —
- Miscanthus sinensis subsp. condensatus Miscanthus sinensis subsp. condensatus —
- Miscanthus sinensis var. zebrinus Miscanthus sinensis var. zebrinus —
- Mississippi Buttercup Ranunculus laxicaulis 51
- Missouri Lambs Quarters Chenopodium album var. missouriense —
- Missouri Violet Viola missouriensis —
- Mitchell's Sedge Carex mitchelliana 59
- Mobile Onion Allium canadense var. mobilense 67
- Mock Bishopweed Ptilimnium capillaceum 24
- Mockernut Hickory Carya tomentosa 74
- Mohr's Bluestem Andropogon mohrii 54
- Mohr's Thoroughwort Eupatorium mohrii 81
- Momordica charantia Momordica charantia —
- Moneywort Lysimachia nummularia —
- Monotropa hypopitys Monotropa hypopitys —
- Morella inodora Morella inodora —
- Morrow's Honeysuckle Lonicera morrowii —
- Moth Mullein Verbascum blattaria —
- Mottled Trillium; Spotted Trillium Trillium maculatum —
- Mound-lily Yucca Yucca gloriosa 57
- Mountain Bellwort Uvularia puberula 22
- Mountain Bugbane Cimicifuga americana —
- Mountain Camellia Stewartia ovata 29
- Mountain Dwarf-dandelion Krigia montana 25
- Mountain Fetterbush Leucothoe recurva 36
- Mountain Golden-Alexanders Zizia trifoliata 46
- Mountain Holly Ilex ambigua var. montana 97
- Mountain Indigo-bush Amorpha glabra 77
- Mountain Laurel Kalmia latifolia 81
- Mountain Meadow-rue Thalictrum clavatum 46
- Mountain Silverbell Halesia carolina 57
- Mountain Silverbell Halesia tetraptera 57
- Mountain Spleenwort Asplenium montanum 15
- Mountain Sweet Pitcherplant Sarracenia jonesii 36
- Mountain Sweet-pepperbush Clethra acuminata 57
- Mourning Love Grass Eragrostis lugens 32
- Mouse-ear Cress Arabidopsis thaliana —
- Muck Sunflower Helianthus simulans —
- Mudbank Crowngrass Paspalum dissectum 66
- Muehlenberg's Nutrush Scleria muehlenbergii 12
- Muehlenberg's Sedge Carex muehlenbergii 59
- Mugwort Artemisia vulgaris —
- Muhlenbergia capillaris var. filipes Muhlenbergia capillaris var. filipes —
- Muhlenbergia capillaris var. trichopodes Muhlenbergia capillaris var. trichopodes —
- Muhlenbergs Sedge Carex muehlenbergii var. enervis 59
- Muhlenbergs Sedge Carex muehlenbergii var. muehlenbergii 59
- Mulberry-weed Fatoua villosa —
- Multiflora Rose Rosa multiflora -85
- Muscadine Vitis rotundifolia 74
- Musk Thistle Carduus nutans -15
- Muster John Henry Tagetes minuta —
- Myrtle Holly Ilex myrtifolia 98
N
- 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 85
- Narrow Leaf Purple Everlasting; Narrow Leaved Purple Everlasting; Narrowleaf Purple Everlasting; Narrowleaved Purple Everlasting Gamochaeta calviceps 32
- Narrow Plumegrass Erianthus strictus 40
- Narrow-fruit Horned Beaksedge Rhynchospora inundata 39
- Narrowleaf Blue-eyed-grass Sisyrinchium angustifolium 17
- Narrowleaf Bluecurls Trichostema setaceum 31
- Narrowleaf Bluestem Andropogon perangustatus 54
- Narrowleaf Bluet Houstonia tenuifolia 35
- Narrowleaf Bugleweed Lycopus angustifolius 30
- Narrowleaf Cow-wheat Melampyrum lineare 8
- Narrowleaf Hawksbeard; Narrow Leaf Hawksbeard; Narrowleafed Hawksbeard; Narrow Leafed Hawksbeard; Narrowleaved Hawksbeard; Narrow Leaved Hawksbeard; Narrowleaf Hawks Beard; Narrow Leaf Hawks Beard; Narrowleafed Hawks Beard; Narrow Leafed Hawks Beard; Narrowleaved Hawks Beard; Narrow Leaved Hawks Beard Crepis tectorum —
- Narrowleaf Lespedeza Lespedeza angustifolia 70
- Narrowleaf Pepperweed Lepidium ruderale —
- Narrowleaf Pinweed Lechea tenuifolia 22
- Narrowleaf Pond-lily Nuphar sagittifolia 54
- Narrowleaf Rose-pink Sabatia brachiata 14
- Narrowleaf Rushfoil Croton michauxii 74
- Narrowleaf Seedbox Ludwigia linearis 65
- Narrowleaf Silkgrass Pityopsis graminifolia 74
- Narrowleaf Sundrops Oenothera fruticosa 84
- Narrowleaf Sunflower Helianthus angustifolius 95
- Narrowleaf Vervain Verbena simplex 77
- Narrowleaf Whitetop Aster Aster solidagineus 48
- Nash's Meadow-beauty Rhexia mariana var. purpurea 43
- Nashs Blue Eyed Grass Sisyrinchium nashii 16
- Navel Cornsalad Valerianella umbilicata 21
- Necklace Sedge Carex projecta 59
- Needle Blue-eyed-grass Sisyrinchium capillare 16
- Needle Spikerush Eleocharis acicularis 34
- Needleleaf Witchgrass Dichanthelium aciculare 49
- Needlepod Rush Juncus scirpoides 44
- Needletip Blue-eyed-grass Sisyrinchium mucronatum 16
- Nestronia Nestronia umbellula 10
- Net Leaf Leather Flower Clematis reticulata —
- Netted Chain-fern Woodwardia areolata 25
- Netted Nutrush Scleria reticularis 12
- Nettleleaf Goosefoot Chenopodiastrum murale —
- Nettleleaf Noseburn Tragia urticifolia 12
- Nettleleaf Sage Salvia urticifolia 55
- New England Aster Symphyotrichum novae-angliae 93
- New Jersey Tea Ceanothus americanus 93
- New York Aster Aster novi-belgii 93
- New York Fern Thelypteris noveboracensis 35
- New York Ironweed Vernonia noveboracensis 75
- Nimblewill Muhlenbergia schreberi 27
- Nodding Beaksedge Rhynchospora inexpansa 39
- Nodding Beggarticks Bidens cernua 87
- Nodding Fescue Festuca subverticillata 40
- Nodding Ladies'-tresses Spiranthes cernua 22
- Nodding Onion Allium cernuum 67
- Nodding Spurge Chamaesyce nutans 64
- Nolina georgiana Nolina georgiana —
- Northern Barren-strawberry Waldsteinia fragarioides 20
- Northern Blazing-star Liatris scariosa 59
- Northern Bluethread Burmannia biflora 8
- Northern Catalpa Catalpa speciosa 56
- Northern Common Goldenrod Solidago canadensis 90
- Northern Dewberry Rubus flagellaris 95
- Northern Green-and-gold Chrysogonum virginianum 13
- Northern Highbush Blueberry Vaccinium corymbosum 98
- Northern Long Sedge Carex folliculata 59
- Northern Maidenhair Fern Adiantum pedatum 15
- Northern Nodding Trillium Trillium cernuum —
- Northern Red Oak Quercus rubra 88
- Northern Roughleaf Goldenrod Solidago patula 90
- Northern Seabeach Orach Atriplex arenaria 37
- Northern Spicebush Lindera benzoin 65
- Northern Wand Goldenrod Solidago stricta 90
- Norway Maple Acer platanoides —
- Nuphar lutea Nuphar lutea —
- Nuphar lutea subsp. advena Nuphar lutea subsp. advena —
- Nutmeg Hickory Carya myristiciformis 74
- Nuttall's Hedge-nettle Stachys nuttallii 56
- Nuttall's Lobelia Lobelia nuttallii 48
- Nuttall's Milkwort Polygala nuttallii —
- Nuttall's Reedgrass Calamagrostis cinnoides —
- Nuttall's Thistle Cirsium nuttallii 87
- Nuttall's Tick-trefoil Desmodium nuttallii 69
- Nymphaea odorata subsp. odorata Nymphaea odorata subsp. odorata —
- Nymphoides crenata Nymphoides crenata —
- Nymphoides cristata Nymphoides cristata -55
- Nyssa ogeche Nyssa ogeche —
O
- Oakleaf Fleabane Erigeron quercifolius 87
- Obedient-plant Physostegia virginiana 27
- Oblong-fruit Pinweed Lechea racemulosa 22
- Odontonema cuspidatum Odontonema cuspidatum —
- Odontonema strictum Odontonema strictum —
- Oenothera fruticosa subsp. glauca Oenothera fruticosa subsp. glauca —
- Oenothera rhombipetala Oenothera rhombipetala —
- Oenothera rosea Oenothera rosea —
- Oglethorpe Oak Quercus oglethorpensis —
- Ohio Spiderwort Tradescantia ohiensis 56
- Old World Diamond-flower Oldenlandia corymbosa —
- Old-pasture Bluegrass Poa saltuensis 59
- Old-witch Panicgrass Panicum capillare 49
- Oldfield Blackberry; Oldfield Black Berry; Old Field Blackberry; Old Field Black Berry Rubus alumnus —
- Olney's Threesquare Schoenoplectus americanus 45
- One-flower Honeycomb-head Balduina uniflora 42
- One-flower Sandwort Minuartia uniflora —
- One-flowered Cancer-root Orobanche uniflora 17
- One-flowered Hawthorn Crataegus uniflora 83
- One-seed Bur-cucumber Sicyos angulatus 15
- Oneflower Bedstraw Galium uniflorum 54
- Open-flower Witchgrass Dichanthelium laxiflorum 49
- Oplismenus hirtellus Oplismenus hirtellus —
- Oplismenus hirtellus subsp. setarius Oplismenus hirtellus subsp. setarius —
- Opposite-leaf Dwarf-dandelion Krigia cespitosa 25
- Opuntia humifusa var. ammophila Opuntia humifusa var. ammophila —
- Opuntia humifusa var. humifusa Opuntia humifusa var. humifusa —
- Opuntia macrorhiza Opuntia macrorhiza —
- Opuntia pusilla Opuntia pusilla —
- Opuntia stricta Opuntia stricta —
- Orange Coneflower Rudbeckia fulgida 75
- Orange Day-lily Hemerocallis fulva —
- Orange Milkwort Polygala lutea —
- Orange-eye Butterfly-bush Buddleja davidii —
- Orbexilum pedunculatum var. gracile Orbexilum pedunculatum var. gracile —
- Orbexilum pedunculatum var. pedunculatum Orbexilum pedunculatum var. pedunculatum —
- Orchard Grass Dactylis glomerata —
- Oriental Arborvitae; Tree of Life Platycladus orientalis —
- Oriental False Hawksbeard Youngia japonica —
- Oriental Lady's-thumb Persicaria longiseta —
- Ornithogalum caudatum Ornithogalum caudatum —
- Osage-orange Maclura pomifera 36
- 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-leaf Sedge Carex cephalophora 59
- Ovateleaf Flatsedge Cyperus ovatus —
- Overcup Oak Quercus lyrata 88
- Oxalis debilis var. corymbosa Oxalis debilis var. corymbosa —
- Oxalis rubra Oxalis rubra —
- Oxeye Daisy Leucanthemum vulgare —
P
- Pagoda Beaksedge Rhynchospora compressa 39
- Pagoda Dog Wood Cornus alternifolia 95
- Painted Buckeye Aesculus sylvatica 71
- Painted Trillium Trillium undulatum —
- Pale Beaksedge Rhynchospora pallida —
- Pale Dock Rumex altissimus 52
- Pale False Mannagrass Glyceria pallida —
- Pale Grass-pink Calopogon pallidus 12
- Pale Indian-plantain Arnoglossum atriplicifolium 42
- Pale Smartweed Persicaria lapathifolia 78
- Pale Spike Rush; Olive Spike Rush Eleocharis olivacea 34
- Pale Yellow Trillium Trillium discolor 25
- Paleleaf Sunflower Helianthus strumosus 97
- Palespike Lobelia Lobelia spicata 49
- Palmer's Amaranth Amaranthus palmeri —
- Panicled Fameflower Talinum paniculatum 15
- Panicled Tick-trefoil Desmodium paniculatum 69
- Panicum abscissum Panicum abscissum —
- Panicum amarum var. amarum Panicum amarum var. amarum —
- Panicum capillare var. sylvaticum Panicum capillare var. sylvaticum —
- Panicum chamaelonche Panicum chamaelonche —
- Panicum longifolium var. combsii Panicum longifolium var. combsii —
- Panicum rigidulum var. condensum Panicum rigidulum var. condensum —
- Panicum tenerum Panicum tenerum —
- Panicum virgatum var. virgatum Panicum virgatum var. virgatum 49
- Paper Birch; Canoe Birch Betula papyrifera —
- Paper Mulberry Broussonetia papyrifera -55
- Paraguayan Purslane Portulaca amilis —
- Paraguayan Starbur Acanthospermum australe —
- Parasol Sedge Carex umbellata 59
- Parkinsonia aculeata Parkinsonia aculeata —
- Parlin's Pussytoes Antennaria parlinii 23
- Paronychia americana Paronychia americana —
- Parrot-feather Myriophyllum aquaticum —
- Parsley Hawthorn Crataegus marshallii 83
- Partridge-berry Mitchella repens 12
- Paspalum bifidum var. projectum Paspalum bifidum var. projectum —
- Paspalum plicatulum Paspalum plicatulum —
- Paspalum repens Paspalum repens —
- Paspalum repens var. fluitans Paspalum repens var. fluitans —
- Path Rush Juncus tenuis 44
- Peach Prunus persica —
- Peanut Arachis hypogaea —
- Pearl Millet Pennisetum glaucum —
- Pecan Carya illinoinensis 74
- Pedicularis labradorica Pedicularis labradorica —
- Peelbark St. John's-wort Hypericum fasciculatum 72
- Pelea glabra Pelea glabra —
- Peltophorum pterocarpum Peltophorum pterocarpum —
- Pennsylvania Bittercress Cardamine pensylvanica 40
- Pennsylvania Blackberry Rubus pensilvanicus 95
- Pennsylvania Everlasting Gamochaeta pensylvanica —
- Pennsylvania Pellitory Parietaria pensylvanica 25
- Pennsylvania Rush Juncus gymnocarpus 44
- Pennsylvania Sedge Carex pensylvanica 59
- Pennsylvania Smartweed Persicaria pensylvanica 75
- Penstemon arkansanus Penstemon arkansanus —
- Pentodon pentandrus Pentodon pentandrus —
- Peppervine Ampelopsis arborea 65
- Perennial Ragweed Ambrosia psilostachya 67
- Perennial Ryegrass Lolium perenne —
- Perennial Saltmarsh Aster Aster tenuifolius 93
- Perennial Sandgrass Triplasis americana 12
- Perfoliate Bellwort Uvularia perfoliata 23
- Perfoliate Horse-gentian Triosteum perfoliatum 21
- Perplexed Tick-trefoil Desmodium perplexum 69
- Persian Ivy Hedera colchica —
- Petite-plant Lepuropetalon spathulatum 10
- Petunia integrifolia Petunia integrifolia —
- Petunia violacea Petunia violacea —
- Phacelia purpusii Phacelia purpusii —
- Phalaris angusta Phalaris angusta —
- Philadelphia Fleabane Erigeron philadelphicus 91
- Philadelphia Panic Grass Panicum philadelphicum 49
- Philippine Lily Lilium philippinense —
- Phleum subulatum Phleum subulatum —
- 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 glaberrima subsp. glaberrima Phlox glaberrima subsp. glaberrima —
- Phlox pilosa subsp. pilosa Phlox pilosa subsp. pilosa —
- Photinia melanocarpa Photinia melanocarpa —
- Phyla nodiflora Phyla nodiflora 48
- Phyllanthus caroliniensis subsp. caroliniensis Phyllanthus caroliniensis subsp. caroliniensis —
- Physalis viscosa Physalis viscosa —
- Phyteuma spicatum Phyteuma spicatum —
- Pickerelweed Pontederia cordata 59
- Pickering's Dawnflower Stylisma pickeringii 22
- Piedmont Bedstraw Galium pedemontanum —
- Piedmont Black-senna Seymeria pectinata 29
- Piedmont False-pimpernel Lindernia monticola 23
- Piedmont Foamflower Tiarella cordifolia 17
- Piedmont Indigo-bush Amorpha schwerinii —
- Piedmont Rhododendron Rhododendron minus 90
- Piedmont Roseling Cuthbertia rosea 55
- Pignut Hickory Carya glabra 74
- Pin Oak Quercus palustris 88
- Pinckneya bracteata Pinckneya bracteata —
- Pine Barren Fluffgrass Tridens ambiguus 31
- Pine Barren Gentian Gentiana autumnalis 29
- Pine Barren Goldenrod Solidago fistulosa 90
- Pine-barren Flatsedge Cyperus retrorsus 39
- Pine-barren Sandwort Minuartia caroliniana —
- Pine-barren Tick-trefoil Desmodium strictum 69
- Pinebarren Frostweed Crocanthemum corymbosum 32
- Pinebarren Sandreed Calamovilfa brevipilis 18
- Pinebarren Sedge Carex turgescens 59
- Pinebarrens Peanut-grass Amphicarpum purshii 8
- Pinehill Blue Stem Schizachyrium scoparium var. divergens —
- Pineland Beaksedge Rhynchospora perplexa 39
- Pineland Hibiscus Hibiscus aculeatus 77
- Pineland Pinweed Lechea patula 22
- Pineland Plantain Plantago sparsiflora 69
- Pineland Rayless-goldenrod Bigelowia nudata 15
- Pineland Scaly-pink Stipulicida setacea 12
- Pineland Silkgrass Pityopsis aspera 74
- Pineland Squarehead Tetragonotheca helianthoides 17
- Pineland St. John's-wort Hypericum suffruticosum 72
- Pineland Threeseed Mercury Acalypha ostryifolia 36
- Pineland Yellow-eyed-grass Xyris stricta 36
- Pineweed Hypericum gentianoides 68
- Pinewoods Fingergrass Eustachys petraea 23
- Pinewoods Milkweed Asclepias humistrata 67
- Pinewoods Rose-gentian Sabatia gentianoides 14
- Pineywoods Dropseed Sporobolus junceus 31
- 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 24
- Pink Milkwort Polygala incarnata —
- Pink Purslane Portulaca pilosa 59
- Pink Queen Tarenaya hassleriana —
- Pink Redstem Ammannia latifolia —
- Pink Smartweed Persicaria bicornis —
- Pink Sundew Drosera capillaris 20
- Pink Thoroughwort Fleischmannia incarnata 81
- Pink Tickseed Coreopsis rosea 68
- Pink Turtlehead Chelone lyonii 29
- Pink Woodsorrel Oxalis debilis —
- Pipevine Aristolochia macrophylla 20
- Piriqueta cistoides subsp. caroliniana Piriqueta cistoides subsp. caroliniana —
- Pistachio Pistacia chinensis —
- Pitch Pine Pinus rigida 74
- Pitchfork Crowngrass Paspalum bifidum 66
- Pithecoctenium cynanchoides Pithecoctenium cynanchoides —
- Pitseeded Goosefoot Chenopodium berlandieri 51
- Pitted Jointgrass Coelorachis cylindrica —
- Pitted Stripeseed Piriqueta caroliniana —
- Pityopsis adenolepis Pityopsis adenolepis —
- 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 hookeriana Plantago hookeriana —
- Plantain-leaf Pussytoes Antennaria plantaginifolia 26
- Platanthera blephariglottis var. conspicua Platanthera blephariglottis var. conspicua —
- Pleopeltis polypodioides subsp. michauxiana Pleopeltis polypodioides subsp. michauxiana —
- Pleopeltis polypodioides subsp. polypodioides Pleopeltis polypodioides subsp. polypodioides —
- Pluchea odorata var. odorata Pluchea odorata var. odorata 69
- Plukenet's Flatsedge Cyperus plukenetii 38
- Plumed Beaksedge Rhynchospora plumosa 39
- Plumeria rubra Plumeria rubra —
- Plymouth Rose-gentian Sabatia kennedyana 14
- Poa pratensis subsp. pratensis Poa pratensis subsp. pratensis —
- Podranea ricasoliana Podranea ricasoliana —
- Poet's Narcissus Narcissus poeticus —
- Pointed Broom Sedge Carex scoparia 59
- 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
- Polygonella polygama Polygonella polygama 8
- Polygonella polygama var. croomii Polygonella polygama var. croomii —
- Pond Cypress Taxodium ascendens 52
- Pond Pine Pinus serotina 74
- Pondberry Lindera melissifolia 65
- Pondspice Litsea aestivalis 21
- Poorjoe Diodia teres —
- Poorland Flatsedge Cyperus compressus 38
- Populus deltoides subsp. deltoides Populus deltoides subsp. deltoides —
- Porter's Reedgrass Calamagrostis porteri 28
- Porteranthus trifoliatus Porteranthus trifoliatus —
- Portuguese Daisy Chrysanthemum lacustre —
- Portulaca umbraticola Portulaca umbraticola —
- Portulaca umbraticola subsp. coronata Portulaca umbraticola subsp. coronata —
- Possum Grape Vitis baileyana 73
- Possumhaw Holly Ilex decidua 97
- Possumhaw Viburnum Viburnum nudum 85
- Post Oak Quercus stellata 88
- Potamogeton pusillus subsp. pusillus Potamogeton pusillus subsp. pusillus —
- Potato Dwarf-dandelion Krigia dandelion 25
- Potentilla canadensis var. villosissima Potentilla canadensis var. villosissima —
- Poverty Oatgrass Danthonia spicata 33
- Powdery Thalia Thalia dealbata 30
- Powell''s Amaranth Amaranthus powellii —
- Prairie Broomweed Amphiachyris dracunculoides —
- Prairie Dock Silphium terebinthinaceum 53
- Prairie False Foxglove Agalinis heterophylla —
- Prairie Fleabane Erigeron strigosus 87
- Prairie Snoutbean Rhynchosia latifolia —
- Prairie Three-awn Aristida oligantha 21
- Prairie Trillium Trillium recurvatum 24
- Prairie Wedgescale Sphenopholis obtusata 8
- Prairie Willow Salix humilis 100
- Prairie-tea Croton Croton monanthogynus 74
- Prenanthes trifoliolata Prenanthes trifoliolata —
- Pretty Sedge Carex woodii 59
- Prickly Bog Sedge Carex atlantica 59
- Prickly Bog Sedge Carex howei 59
- Prickly Fanpetals Sida spinosa —
- Prickly Sowthistle Sonchus asper —
- Primrose-leaf Violet Viola primulifolia 77
- Princess-tree Paulownia tomentosa -85
- Proso Millet Panicum miliaceum —
- Prostrate Blue Violet Viola walteri 77
- Prostrate Spurge Chamaesyce prostrata —
- Prostrate Tick-trefoil Desmodium rotundifolium 69
- Prune-fruit Sedge Carex corrugata 59
- Prunus besseyi Prunus besseyi —
- Prunus umbellata var. injuncunda Prunus umbellata var. injuncunda —
- Pseuderanthemum variabile Pseuderanthemum variabile —
- Pseudogynoxys chenopodioides Pseudogynoxys chenopodioides —
- Pteridium aquilinum Pteridium aquilinum —
- Pterocarya fraxinifolia Pterocarya fraxinifolia —
- Pteroglossaspis ecristata Pteroglossaspis ecristata —
- Pumpkin Ash Fraxinus profunda 75
- Puncture-vine Tribulus terrestris —
- Purple Amaranth Amaranthus lividus —
- Purple Beautyberry Callicarpa dichotoma —
- Purple Bedstraw Galium latifolium 54
- Purple Dead-nettle Lamium purpureum —
- Purple False Foxglove Agalinis purpurea 54
- Purple Honeycomb-head Balduina atropurpurea 42
- Purple Lovegrass Eragrostis spectabilis 32
- Purple Nutsedge Cyperus rotundus —
- Purple Pitcherplant Sarracenia purpurea 36
- Purple Sandgrass Triplasis purpurea 12
- Purple Spikerush Eleocharis atropurpurea —
- Purple Twayblade Liparis liliifolia 8
- Purple-stem Cliffbrake Pellaea atropurpurea 8
- Purpledisk Sunflower Helianthus atrorubens 95
- Purplehead Sneezeweed Helenium flexuosum 66
- Purpleleaf Willowherb Epilobium coloratum 40
- Purplestem Aster Symphyotrichum puniceum 93
- Purplestem Beggarticks Bidens connata 87
- Pursh's Rattlebox Crotalaria purshii 56
- Purslane Speedwell Veronica peregrina —
- Puttyroot Aplectrum hyemale 8
- Pycnanthemum nudum Pycnanthemum nudum —
- Pyramid Magnolia Magnolia pyramidata —
- Pyxidanthera brevifolia Pyxidanthera brevifolia —
Q
- Queen-Anne's-Lace Daucus carota -30
- Queen's-delight Stillingia sylvatica 16
- Quercus chapmanii Quercus chapmanii —
- Quercus glauca Quercus glauca —
- Quercus myrsinifolia Quercus myrsinifolia —
- Quercus myrtifolia Quercus myrtifolia —
- Quill Fameflower Phemeranthus teretifolius 15
- Quillwort Arrowhead Sagittaria isoetiformis 58
R
- Rabbitfoot Clover Trifolium arvense —
- Racemed Milkwort Polygala polygama —
- Radford's Sedge Carex radfordii 59
- Rafinesque's Seedbox Ludwigia hirtella 65
- Ragged Fringed Orchid Platanthera lacera 27
- Rain Lily Zephyranthes simpsonii 20
- Ramie Boehmeria nivea —
- Ranunculus trilobus Ranunculus trilobus —
- 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
- Ravenel's Witchgrass Dichanthelium ravenelii 49
- Ravenfoot Sedge Carex crus-corvi 59
- Recurved Thoroughwort* Eupatorium recurvans 81
- Red Buckeye Aesculus pavia 71
- Red Chokeberry Photinia pyrifolia —
- Red Clover Trifolium pratense —
- Red Hawthorn Crataegus iracunda 83
- Red Hickory Carya ovalis 74
- Red Lovegrass Eragrostis secundiflora —
- Red Maple Acer rubrum 85
- Red Milkweed Asclepias rubra 67
- Red Morning-glory Ipomoea coccinea —
- Red Mulberry Morus rubra 48
- Red Sprangletop Leptochloa panicea 26
- Red Trillium Trillium erectum 25
- Red Turtlehead Chelone obliqua 29
- Red-seeded Dandelion Taraxacum erythrospermum —
- Redpod Rush Juncus trigonocarpus 44
- Redroot Amaranth Amaranthus retroflexus 68
- Redroot Flatsedge Cyperus erythrorhizos 38
- 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 38
- Reflexed Sedge Carex retroflexa 59
- Rescue Grass Bromus catharticus —
- Resindot Sunflower Helianthus resinosus 95
- Resurrection Fern Pleopeltis polypodioides —
- Reversed Clover Trifolium resupinatum —
- Rhexia mariana var. exalbida Rhexia mariana var. exalbida 43
- Rhododendron canadense Rhododendron canadense —
- Rhododendron eastmanii Rhododendron eastmanii —
- Rhododendron flammeum Rhododendron flammeum —
- Rhododendron oblongifolium Rhododendron oblongifolium —
- Rhus chinensis Rhus chinensis —
- Rhynchospora cephalantha var. pleiocephala Rhynchospora cephalantha var. pleiocephala —
- Rhynchospora distans Rhynchospora distans 39
- Rhynchospora fascicularis var. distans Rhynchospora fascicularis var. distans —
- Rhynchospora fascicularis var. fascicularis Rhynchospora fascicularis var. fascicularis —
- Rhynchospora globularis var. globularis Rhynchospora globularis var. globularis —
- Rhynchospora globularis var. recognita Rhynchospora globularis var. recognita —
- Rhynchospora saxicola Rhynchospora saxicola —
- Rhynchospora sclerioides Rhynchospora sclerioides —
- Ribbed Sedge Carex virescens 59
- Ribbonleaf Pondweed Potamogeton epihydrus 42
- Ribes echinellum Ribes echinellum —
- Rice Cutgrass Leersia oryzoides 29
- Ricefield Flatsedge Cyperus iria —
- Rich-woods Sedge Carex oligocarpa 60
- Richard's Yellow-eyed-grass Xyris jupicai 36
- Ridged Yellow Flax Linum striatum 44
- Rigid Whitetop Aster Aster curtisii 93
- Ripgut Brome Bromus diandrus —
- River Birch Betula nigra 74
- River Oats Chasmanthium latifolium 36
- Riverbank Wild-rye Elymus riparius 46
- Roan Mountain Goldenrod Solidago roanensis 90
- Robbins's Spikerush Eleocharis robbinsii 34
- Robin's-plantain Erigeron pulchellus 88
- Robinia elliottii Robinia elliottii —
- Rock Firmoss Huperzia porophila 11
- Rock Harlequin Corydalis sempervirens 16
- Rock Spikemoss Selaginella rupestris 18
- Rorippa indica Rorippa indica —
- Rorippa islandica var. barbareifolia Rorippa islandica var. barbareifolia —
- Rorippa tenerrima Rorippa tenerrima —
- Rose Campion Lychnis coronaria —
- Rose Pogonia Pogonia ophioglossoides 8
- Rose Vervain Glandularia canadensis 77
- Rose-moss Portulaca grandiflora —
- Rosebay Rhododendron Rhododendron maximum 97
- Rosemary Frostweed Crocanthemum rosmarinifolium 32
- Rosy Camphorweed Pluchea rosea 69
- Rosy Sedge Carex rosea 59
- Rough American Barnyard Grass Echinochloa muricata var. muricata —
- Rough Bent Grass Agrostis scabra 45
- Rough Blazing-star Liatris aspera 56
- Rough Bluegrass Poa trivialis —
- Rough Boneset Eupatorium pilosum 81
- Rough Cinquefoil Potentilla norvegica 68
- Rough Dropseed Sporobolus clandestinus 31
- Rough False Pennyroyal Hedeoma hispida 23
- Rough Flatsedge Cyperus retrofractus 38
- Rough Hair Witch Grass Dichanthelium strigosum var. leucoblepharis 49
- Rough Hawkweed Hieracium scabrum 35
- Rough Hawthorn Crataegus senta 83
- Rough Hedge-nettle Stachys aspera 56
- Rough Mexican-clover Richardia scabra —
- Rough Seed Bulrush Schoenoplectus mucronatus —
- Rough Witchgrass Dichanthelium acuminatum subsp. leucothrix 49
- Rough-hair Witchgrass Dichanthelium strigosum 49
- Roughfruit Scaleseed Spermolepis divaricata 15
- Roughleaf Dogwood Cornus asperifolia 95
- Roughleaf Loosestrife Lysimachia asperulifolia —
- 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 Dogwood Cornus rugosa —
- Round Pricklyhead Poppy Papaver hybridum —
- Round-lobed Hepatica Hepatica americana 17
- Roundfruit Hedge-hyssop Gratiola virginiana 8
- Roundhead Lespedeza Lespedeza capitata 70
- Roundhead Rush Juncus validus 44
- Roundleaf Bluet Houstonia procumbens 35
- Roundleaf Ragwort Packera obovata 83
- Roundleaf Serviceberry Amelanchier sanguinea 77
- Roundleaf Sundew Drosera rotundifolia 20
- Roundleaf Thoroughwort Eupatorium rotundifolium 81
- Roundleaf Yellow Violet Viola rotundifolia 78
- Roundpod St. John's-wort Hypericum cistifolium 72
- Roundseed Witchgrass Dichanthelium sphaerocarpon 49
- Royal Fern Osmunda regalis 28
- Rubus arcticus Rubus arcticus —
- Rubus heterophyllus Rubus heterophyllus —
- Rubus invisus Rubus invisus —
- Rubus leviculus Rubus leviculus —
- Rudbeckia fulgida var. spathulata Rudbeckia fulgida var. spathulata 75
- Rudbeckia maxima Rudbeckia maxima —
- Rudbeckia mollis Rudbeckia mollis —
- Rudbeckia nitida Rudbeckia nitida —
- Rue Anemone Thalictrum thalictroides 46
- Ruellia caroliniensis subsp. ciliosa Ruellia caroliniensis subsp. ciliosa —
- Ruellia caroliniensis var. caroliniensis Ruellia caroliniensis var. caroliniensis —
- Rufous Bulrush Scirpus pendulus 45
- Rumex brownei Rumex brownei —
- Running Clubmoss Lycopodium clavatum 11
- Running Oak Quercus pumila 85
- Russian Vine Fallopia baldschuanica —
- Rusty Blackhaw Viburnum rufidulum 85
- Rye Brome Bromus secalinus —
S
- Sabatia bartramii Sabatia bartramii —
- Sabatia brevifolia Sabatia brevifolia —
- Sabatia dodecandra var. foliosa Sabatia dodecandra var. foliosa —
- Saccharum brevibarbe Saccharum brevibarbe —
- Saccharum brevibarbe var. brevibarbe Saccharum brevibarbe var. brevibarbe —
- Saccharum brevibarbe var. contortum Saccharum brevibarbe var. contortum —
- Saccharum coarctatum Saccharum coarctatum —
- Sago Pondweed Stuckenia pectinatus 42
- Salicornia depressa Salicornia depressa —
- Salix cinerea subsp. cinerea Salix cinerea subsp. cinerea —
- Salix humilis var. microphylla Salix humilis var. microphylla —
- Sallow Sedge Carex lurida 59
- Salt-marsh Pink Sabatia stellaris 14
- Saltmarsh Bulrush Bolboschoenus robustus 45
- Saltmarsh Cordgrass Spartina alterniflora 43
- Saltmarsh False Foxglove Agalinis maritima —
- Saltmarsh Fleabane Pluchea odorata 69
- Saltmarsh Morning-glory Ipomoea sagittata 81
- Saltmarsh Sandspurry Spergularia salina 8
- Saltmarsh Water-hemp Amaranthus cannabinus 68
- Saltmeadow Cordgrass Spartina patens 43
- Saltwater False-willow Baccharis angustifolia 77
- Salvia farinacea Salvia farinacea —
- Salvia verticillata Salvia verticillata —
- Salvinia minima Salvinia minima —
- Sand Bitter Cress Cardamine parviflora var. arenicola 40
- Sand Bittercress Cardamine parviflora 40
- Sand Blackberry Rubus cuneifolius 95
- Sand Hickory Carya pallida 74
- Sand Live Oak Quercus geminata 88
- Sand Pine Pinus clausa —
- Sand Spikerush Eleocharis montevidensis 34
- Sand Tick-trefoil Desmodium lineatum 69
- Sand-myrtle Leiophyllum buxifolium 77
- Sandbog Death-camas Zigadenus glaberrimus 12
- Sandhill Golden-aster Heterotheca pinifolia 74
- Sandhill Thistle Carduus repandus 87
- Sandhills Bean Phaseolus sinuatus 70
- Sandhills Blazing-star Liatris cokeri 56
- Sandhills Milkvetch Astragalus michauxii 71
- Sandpaper Vervain Verbena scabra 77
- Sandplain Yellow Flax Linum intercursum 44
- Sandy-field Beaksedge Rhynchospora megalocarpa 39
- Sandy-field Hairsedge Bulbostylis stenophylla 8
- Sandywoods Chaffhead Carphephorus bellidifolius 40
- Sarcocornia perennis Sarcocornia perennis —
- Sarsaparilla Vine; Dwarf Smilax Smilax pumila —
- Sarvis Holly Ilex amelanchier 97
- Sassafras Sassafras albidum 71
- Savanna Beaksedge Rhynchospora debilis 39
- Savanna Cowbane Oxypolis ternata 19
- Savanna Indian-plantain Arnoglossum ovatum 41
- 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 65
- Savanna Sneezeweed Helenium vernale 66
- Savanna Tickseed Coreopsis linifolia 68
- Savanna Yellow-eyed-grass Xyris flabelliformis 36
- Saw Greenbrier Smilax bona-nox 71
- Sawgrass Cladium jamaicense 27
- Sawtooth Blackberry Rubus argutus 95
- Scaleleaf False Foxglove Agalinis aphylla 54
- Scaly Blazing-star Liatris squarrosa 56
- Scarlet Beebalm Monarda didyma 69
- Scarlet Hawthorn Crataegus coccinea 87
- Scarlet Indian-paintbrush Castilleja coccinea 43
- Scarlet Milkweed Asclepias curassavica —
- Scarlet Oak Quercus coccinea 88
- Scarlet Pimpernel Anagallis arvensis —
- Scarlet Sage; Blood Sage Salvia coccinea —
- Scarlet Toothcup Ammannia coccinea 21
- Scarlet Wisteria-tree Sesbania punicea -15
- Scentless Mock-orange Philadelphus inodorus 36
- Schinus terebinthifolius Schinus terebinthifolius —
- Schweinitz's Sunflower Helianthus schweinitzii —
- Scleria pauciflora var. glabra Scleria pauciflora var. glabra —
- Scotch Broom Cytisus scoparius -55
- Scutellaria ocmulgee Scutellaria ocmulgee —
- Sea Oats Uniola paniculata 19
- Sea Oxeye Borrichia frutescens 46
- Seabeach Amaranth Amaranthus pumilus 68
- Seabeach Evening-primrose Oenothera humifusa 81
- Seashore Crowngrass Paspalum vaginatum —
- Seashore Dropseed Sporobolus virginicus 31
- Seashore Mallow Kosteletzkya virginica 29
- Seashore Saltgrass Distichlis spicata 31
- Seaside Brookweed Samolus parviflorus 13
- Seaside Heliotrope Heliotropium curassavicum 24
- Seaside Seedbox Ludwigia maritima 65
- Seaside Three-awn Aristida tuberculosa 21
- Selaginella braunii Selaginella braunii —
- Seneca Snakeroot Polygala senega —
- Senecio anonymus Senecio anonymus —
- Senecio aschenbornianus Senecio aschenbornianus —
- Senna alata Senna alata —
- Senna bicapsularis Senna bicapsularis —
- Senna corymbosa Senna corymbosa —
- Senna covesii Senna covesii —
- Senna didymobotrya Senna didymobotrya —
- Senna splendida Senna splendida —
- Senna tora Senna tora —
- Sensitive Fern Onoclea sensibilis 26
- Sensitive Partridge-pea Chamaecrista nictitans 69
- Serenoa repens Serenoa repens —
- Sericea Lespedeza Lespedeza cuneata -85
- Sessile-leaf Bellwort Uvularia sessilifolia 22
- Sesuvium microphyllum Sesuvium microphyllum —
- Setaria macrosperma Setaria macrosperma —
- Shade Mudflower Micranthemum umbrosum 21
- Shadow-witch Ponthieva racemosa 8
- Shagbark Hickory Carya ovata 74
- Shaggy Crabgrass Digitaria villosa 51
- Shaggy Hedge-hyssop Gratiola pilosa 8
- Sharp-lobed Hepatica Hepatica acutiloba 18
- Sharp-scale Sedge Carex oxylepis 59
- Sharpleaf St. John's-wort Hypericum virgatum 68
- Sharpwing Monkey-flower Mimulus alatus 36
- Shaved Sedge Carex tonsa 59
- Sheathed Flatsedge Cyperus haspan 38
- Sheep Laurel Kalmia angustifolia 77
- 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
- Shining Nut Rush Scleria nitida 12
- Shining Witchgrass; Cypress Panicgrass; Shining Witch Grass; Cypress Panic Grass Dichanthelium dichotomum var. nitidum 49
- Shiny Spikegrass Chasmanthium nitidum 36
- Shiny Wedgescale Sphenopholis nitida 8
- Shoreline Sea-purslane Sesuvium portulacastrum 33
- Shoreline Sedge Carex hyalinolepis 59
- Short Bearded Plume Grass; Short Beard Plume Grass; Shortbearded Plume Grass; Shortbeard Plume Grass; Short Bearded Plumegrass; Short Beard Plumegrass; Shortbearded Plumegrass; Shortbeard Plumegrass Erianthus brevibarbis —
- Short Fringed Sedge Carex crinita var. brevicrinis 59
- Short-bristle Beaksedge Rhynchospora breviseta 39
- Short-bristle Horned Beaksedge Rhynchospora corniculata 39
- Shortbeak Beaksedge Psilocarya nitens 39
- Shortleaf Basketgrass Oplismenus setarius 15
- Shortleaf Pine Pinus echinata 74
- Shortleaf Skeleton-grass Gymnopogon brevifolius 15
- Shortleaf Sneezeweed Helenium brevifolium 66
- Shortleaf Yellow-eyed-grass Xyris brevifolia 36
- Shortpod Draba Draba brachycarpa —
- Shortstalk Chickweed Cerastium brachypodum 43
- 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 Sunflower Helianthus laetiflorus —
- Shrubby Seedbox Ludwigia suffruticosa 65
- Shrubby St. John's-wort Hypericum prolificum 72
- Shumard Oak Quercus shumardii 88
- Siberian Elm Ulmus pumila —
- Sickle Tickseed Coreopsis falcata 68
- Sicklepod Senna obtusifolia —
- Sidebeak Pencil-flower Stylosanthes biflora 31
- Sideroxylon lanuginosum subsp. lanuginosum Sideroxylon lanuginosum subsp. lanuginosum —
- Silene latifolia subsp. alba Silene latifolia subsp. alba —
- Silky Camellia Stewartia malacodendron 29
- Silky Dogwood Cornus amomum 95
- Silky Oatgrass Danthonia sericea 33
- Silky Wild-rye Elymus villosus 46
- Silky Willow Salix sericea 99
- Silphium scaberrimum Silphium scaberrimum —
- Silphium speciosum Silphium speciosum —
- Silver Hairgrass Aira caryophyllea —
- Silver Maple Acer saccharinum 85
- Silver Plumegrass Saccharum alopecuroides —
- Silverleaf Hydrangea Hydrangea radiata 52
- Silverleaf Nightshade Solanum elaeagnifolium —
- Silverling Baccharis glomeruliflora 77
- Silvery Cockscomb Celosia argentea —
- Silvery Cudweed Gamochaeta argyrinea 32
- Silvery Spleenwort Deparia acrostichoides 19
- Simmonds's Aster Symphyotrichum simmondsii 93
- Simmondsia chinensis Simmondsia chinensis —
- Single-sorus Spleenwort Asplenium monanthes 15
- Singlehead Pussytoes Antennaria solitaria 23
- Sisymbrium orientale Sisymbrium orientale —
- Six Weeks Fescue Vulpia octoflora —
- 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 Aster gracilis 56
- Slender Beaksedge Rhynchospora gracilenta 39
- Slender Blue Iris Iris prismatica 57
- Slender Bulrush; Slender Bul Rush Schoenoplectus heterochaetus —
- Slender Clubmoss Pseudolycopodiella caroliniana 11
- Slender Cottonweed Froelichia gracilis —
- Slender Crabgrass Digitaria filiformis —
- Slender Dayflower Commelina erecta 52
- Slender False Foxglove Agalinis tenuifolia 54
- Slender Fimbry Fimbristylis autumnalis 15
- Slender Flat-top Goldenrod Euthamia caroliniana 90
- Slender Flatsedge Cyperus bipartitus 38
- Slender Goldenrod Solidago erecta 90
- Slender Indiangrass Sorghastrum elliottii 48
- Slender Ironweed Vernonia angustifolia 75
- Slender Ladies'-tresses Spiranthes lacera 22
- Slender Lespedeza Lespedeza virginica 71
- Slender Mountain-mint Pycnanthemum tenuifolium 40
- Slender Naiad; Wavy Waternymph; Wavy Water Nymph Najas flexilis —
- Slender Nutrush Scleria minor 12
- Slender Parsley-piert Aphanes australis —
- Slender Plantain Plantago heterophylla 69
- Slender Rattlesnake-root Prenanthes autumnalis 46
- Slender Rose-gentian Sabatia campanulata 14
- Slender Scratch-daisy Croptilon divaricatum 49
- Slender Sea-purslane Sesuvium maritimum 33
- Slender Spike Rush Eleocharis verrucosa 34
- Slender Spikerush Eleocharis tenuis 34
- Slender Threeseed Mercury Acalypha gracilens 36
- Slender Toothwort Cardamine angustata 40
- Slender Vervain Verbena rigida —
- Slender Waternymph Najas gracillima 13
- Slender Wedgescale Sphenopholis intermedia 8
- Slender Woodland Sedge Carex digitalis 59
- Slender Woodland Sedge Carex digitalis var. macropoda 59
- Slender Yellow-eyed-grass Xyris torta 36
- Slender-fruit Beaksedge Rhynchospora leptocarpa 39
- Slender-fruit Nutrush Scleria georgiana 12
- Slenderleaf False-Dragonhead Physostegia leptophylla 26
- Slenderleaf Rattlebox Crotalaria ochroleuca —
- Slim-flower Muhly Muhlenbergia tenuiflora 27
- Slimleaf Tick-trefoil Desmodium tenuifolium 69
- Slippery Elm Ulmus rubra 76
- Slow Sedge Carex pigra 59
- Small Beggarticks Bidens discoidea 87
- Small Black Blueberry Vaccinium tenellum 98
- Small Butterwort Pinguicula pumila 8
- Small Green Wood Orchid Habenaria 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 39
- Small Pondweed Potamogeton pusillus 42
- Small pondweed Potamogeton pusillus subsp. tenuissimus —
- Small Sundrops Oenothera perennis 81
- Small Venus's-looking-glass Triodanis perfoliata var. biflora 20
- Small Waterwort Elatine minima 8
- Small White Aster Symphyotrichum racemosum 93
- Small White Fringed Orchid Platanthera blephariglottis 27
- Small Wood Sunflower Helianthus microcephalus 95
- Small-flower Baby-blue-eyes Nemophila aphylla 8
- Small-flower Fumewort Corydalis micrantha 16
- Small-flower Thoroughwort Eupatorium semiserratum 81
- Small-flowered Buckthorn Sageretia minutiflora 10
- Small-flowered Catchfly Silene gallica —
- Small-headed Silkgrass Pityopsis graminifolia var. tenuifolia —
- Small-leaved Meadow-rue Thalictrum macrostylum 46
- Small's Beaksedge Rhynchospora globularis var. pinetorum 39
- Small's Beardtongue Penstemon smallii 71
- Small's Black-snakeroot Sanicula smallii 15
- Small's Bogbutton Lachnocaulon minus 8
- Small's Purslane Portulaca smallii —
- Small's Ragwort Packera anonyma 83
- Small's Yellow-eyed-grass Xyris smalliana 36
- Smallanthus uvedalius Smallanthus uvedalius —
- Smallflower Blueberry Vaccinium amoenum 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 65
- Smallfruit Spikerush Eleocharis microcarpa 34
- Smallhead Blazing-star Liatris microcephala 56
- Smallhead Doll's-daisy Boltonia diffusa 23
- Smallhead Marsh-elder Iva microcephala 33
- Smilax tamnoides Smilax tamnoides —
- Smooth Arrow Wood Viburnum dentatum var. lucidum 77
- Smooth Beggarticks Bidens laevis 91
- Smooth Blackberry Rubus canadensis 98
- Smooth Blackhaw Viburnum prunifolium 88
- Smooth Blue Aster Symphyotrichum laeve 93
- Smooth Carrion-flower Smilax herbacea 69
- Smooth Cat's-ear Hypochaeris glabra —
- Smooth Crabgrass Digitaria ischaemum —
- Smooth Elephant's-foot Elephantopus nudatus 45
- Smooth False-buttonweed Spermacoce glabra 48
- Smooth Hawksbeard Crepis capillaris —
- Smooth Hedge-nettle Stachys tenuifolia 56
- Smooth Hydrangea Hydrangea arborescens 55
- Smooth Meadow-parsnip Thaspium trifoliatum 24
- Smooth Oxeye Heliopsis helianthoides 49
- Smooth Phlox Phlox glaberrima 54
- Smooth Pigweed Amaranthus hybridus 68
- Smooth Purple Coneflower Echinacea laevigata 47
- Smooth Rattlebox Crotalaria pallida —
- 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 95
- Smooth Tick-trefoil Desmodium laevigatum 69
- Smooth Wild-petunia Ruellia strepens 36
- Smooth Winterberry Ilex laevigata 97
- Smooth Yellow False Foxglove Aureolaria flava 46
- Smooth Yellow Violet Viola pubescens var. leiocarpa 77
- Smooth-sheath Sedge Carex laevivaginata 59
- Smut-grass Sporobolus indicus —
- Snowy Black Anthers Melanthera nivea —
- Snowy Orchid Habenaria nivea 27
- Soapwort Saponaria officinalis —
- Soapwort Gentian Gentiana saponaria 29
- Soft Golden-aster Bradburia pilosa 74
- Soft Milkpea Galactia mollis 72
- Soft Rush Juncus effusus —
- Softstem Bulrush Schoenoplectus tabernaemontani 45
- Solanum americanum Solanum americanum —
- Solanum jasminoides Solanum jasminoides —
- Solanum ptychanthum Solanum ptychanthum —
- Solanum quitoense Solanum quitoense —
- Soldier's Orchid Zeuxine strateumatica —
- Solidago arguta var. boottii Solidago arguta var. boottii 90
- Solidago brachyphylla Solidago brachyphylla —
- Solidago sempervirens Solidago sempervirens 90
- Solidago spathulata Solidago spathulata —
- Solidago ulmifolia var. ulmifolia Solidago ulmifolia var. ulmifolia 90
- Soliva stolonifera Soliva stolonifera —
- Sorghastrum secundum Sorghastrum secundum —
- Sorghum Sorghum bicolor —
- Sorghum bicolor subsp. bicolor Sorghum bicolor subsp. bicolor —
- Sourwood Oxydendrum arboreum 59
- South American Mock Vervain Glandularia pulchella —
- South American Skullcap Scutellaria racemosa —
- South American Vervain Verbena bonariensis —
- Southeastern Cut Leaf Cone Flower Rudbeckia laciniata var. digitata 75
- Southeastern Flatsedge Cyperus filiculmis 38
- Southeastern Flowering Spurge Euphorbia pubentissima 64
- Southeastern Seedbox Ludwigia linifolia 65
- Southeastern Slimspike Three-awn Aristida longispica 21
- Southeastern Sneezeweed Helenium pinnatifidum 66
- Southern Adder's-tongue Ophioglossum vulgatum 8
- Southern Arrowwood Viburnum dentatum 85
- Southern Barren-strawberry Waldsteinia parviflora —
- Southern Bayberry Morella caroliniensis 72
- Southern Beaksedge Rhynchospora microcarpa 39
- Southern Beeblossom Gaura angustifolia 81
- Southern Bladderwort Utricularia juncea 22
- Southern Blue Monkshood Aconitum uncinatum 24
- Southern Bluethread Burmannia capitata 8
- Southern Bog Clubmoss Lycopodiella appressa 11
- Southern Bogbutton Lachnocaulon beyrichianum 8
- 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 53
- Southern Coastal Violet Viola septemloba 77
- Southern Crabapple Malus angustifolia 99
- Southern Crabgrass Digitaria ciliaris —
- Southern Cutgrass Leersia hexandra 29
- Southern Dawnflower Stylisma humistrata 23
- Southern Dewberry Rubus trivialis 96
- Southern Elephants Foot; Southern Elephantsfoot Elephantopus elatus —
- Southern Fimbry Fimbristylis decipiens —
- Southern Grapefern Botrychium biternatum 11
- Southern Ground-cedar Diphasiastrum 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 Lady Fern Athyrium asplenioides 19
- Southern Lobelia Lobelia amoena 48
- Southern Long Sedge Carex lonchocarpa 59
- Southern Magnolia Magnolia grandiflora 72
- Southern Marsh St. John's-wort Triadenum tubulosum 68
- Southern Marsh Yellowcress Rorippa teres 36
- Southern Mountain-mint Pycnanthemum pycnanthemoides 40
- Southern Nodding Trillium Trillium rugelii 24
- Southern Oconee Bells Shortia galacifolia 8
- Southern Prickly Pear; Florida Prickly Pear; Southern Pricklypear; Florida Pricklypear Opuntia austrina —
- Southern Red Cedar Juniperus silicicola 59
- Southern Red Oak Quercus falcata 88
- Southern Rein Orchid Habenaria flava 27
- Southern Rockbell Wahlenbergia marginata —
- Southern Roughleaf Goldenrod Solidago patula var. strictula 90
- Southern Sandspur Cenchrus echinatus 49
- Southern Shagbark Hickory Carya carolinae-septentrionalis 74
- Southern Six Weeks Fescue Vulpia octoflora var. octoflora —
- Southern Slender Ladies Tresses Spiranthes lacera var. gracilis 22
- Southern Stoneseed Lithospermum tuberosum —
- Southern Swamp Aster Eurybia paludosa 56
- Southern Swamp-lily Crinum americanum —
- Southern Sweet Bay Magnolia Magnolia virginiana var. australis —
- Southern Twayblade Listera australis 8
- Southern Watergrass Luziola fluitans 18
- Southern Waternymph Najas guadalupensis 13
- Southern Waxy Sedge Carex glaucescens 59
- Southern Wild-rice Zizaniopsis miliacea 27
- Southern Winged Loosestrife Lythrum lanceolatum 59
- Southern Wood-fern Dryopteris ludoviciana 23
- Soybean Glycine max —
- Spanish-moss Tillandsia usneoides 19
- 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
- Sphenopholis pallens Sphenopholis pallens —
- Spider Brake Pteris multifida —
- Spiderwisp Gynandropsis gynandra —
- Spiked Hoary-pea Tephrosia spicata 48
- Spiked Wild Indigo Baptisia albescens 76
- Spineless Hornwort Ceratophyllum echinatum 13
- Spinulose Wood-fern Dryopteris carthusiana 23
- Spiny Amaranth Amaranthus spinosus —
- Spirodela polyrrhiza Spirodela polyrrhiza —
- Splitbeard Bluestem Andropogon ternarius 54
- Spoon-shaped Barbara's-buttons Marshallia obovata 13
- Spoonleaf Purple Everlasting Gamochaeta purpurea 32
- Spoonleaf Sundew Drosera intermedia 20
- Sporobolus curtissii Sporobolus curtissii —
- Sporobolus floridanus Sporobolus floridanus —
- Sporobolus indicus var. indicus Sporobolus indicus var. indicus —
- Spotted Beebalm Monarda punctata 69
- Spotted Coralroot Corallorhiza maculata 8
- Spotted Jewelweed Impatiens capensis 67
- Spotted Knapweed Centaurea biebersteinii —
- Spotted Medick Medicago arabica —
- Spotted Phacelia Phacelia maculata 48
- Spotted Pondweed Potamogeton pulcher 42
- Spotted Spurge Chamaesyce maculata 64
- 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 39
- Spreading Bulrush Scirpus divaricatus 45
- Spreading Bur Parsley Torilis arvensis —
- Spreading Chervil Chaerophyllum procumbens 18
- Spreading Chervil Chaerophyllum procumbens var. procumbens 15
- Spreading Sandwort Arenaria lanuginosa 8
- Spreading Sedge Carex laxiculmis —
- Spring Coralroot Corallorhiza wisteriana 8
- Spring Draba Draba verna —
- Spring Forget-me-not Myosotis verna 36
- Spring Ladies'-tresses Spiranthes vernalis 22
- Spring Starflower Ipheion uniflorum —
- 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 59
- Squirrel Corn Dicentra canadensis 13
- Squirrel-tail Fescue Vulpia sciurea 40
- St. Andrew's-cross Hypericum hypericoides 73
- St. Augustine Grass Stenotaphrum secundatum 47
- St. Peter's-wort Hypericum crux-andreae 72
- Staggerbush Lyonia mariana 73
- Stalk Grain Sedge; Owlfruit Sedge Carex stipata var. maxima 59
- Stalkless Yellowcress Rorippa sessiliflora 36
- Standing-cypress Ipomopsis rubra 15
- Stapelia gigantea Stapelia gigantea —
- Star Chickweed Stellaria pubera 58
- Star Tickseed Coreopsis pubescens 68
- Starch Grape-hyacinth Muscari neglectum —
- Starrush Whitetop Sedge Rhynchospora colorata 39
- 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
- Stemless Ironweed Vernonia acaulis 75
- Stenandrium floridanum Stenandrium floridanum —
- Stenanthium gramineum var. micranthum Stenanthium gramineum var. micranthum —
- Stevia rebaudiana Stevia rebaudiana —
- Sticky Chickweed Cerastium glomeratum —
- Sticky Nightshade Solanum sisymbriifolium —
- Stiff Aster Aster linariifolius 48
- Stiff Cowbane Oxypolis rigidior 23
- Stiff Dogwood Cornus stricta 98
- Stiff Gentian Gentiana quinquefolia 29
- Stiff Marsh Bedstraw Galium tinctorium 54
- Stiff Star-grass Hypoxis rigida 17
- Stiff Sunflower; Stiff Sun Flower Helianthus pauciflorus —
- Stiff Tick-trefoil Desmodium obtusum 69
- Stiff Yellow Flax Linum medium —
- Stillingia aquatica Stillingia aquatica —
- Stinkgrass Eragrostis cilianensis —
- Stinking Camphorweed Pluchea foetida 69
- Stinking Chamomile* Anthemis cotula —
- Stipulicida setacea var. setacea Stipulicida setacea var. setacea —
- Stokes's Aster Stokesia laevis —
- Stout Rush Juncus nodatus —
- Straw-colored Flatsedge Cyperus strigosus 38
- Strawstem Beggarticks Bidens comosa 87
- Streptanthus sparsiflorus Streptanthus sparsiflorus —
- Strict Forget-me-not Myosotis stricta —
- Striped Bladderwort Utricularia striata —
- Striped Cream Violet Viola striata 77
- Striped Gentian Gentiana villosa 29
- Striped Maple Acer pensylvanicum 85
- Stylodon carneus Stylodon carneus —
- Subularia aquatica Subularia aquatica —
- Suckling Hop Clover Trifolium dubium —
- Sugar Maple Acer saccharum 85
- Sugarberry Celtis laevigata 65
- Sugarcane Plumegrass Erianthus giganteus 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 Snowflake Leucojum aestivum —
- Summer-cypress Kochia scoparia —
- Sun-facing Coneflower Rudbeckia heliopsidis 75
- Sundial Lupine Lupinus perennis 77
- Sunny Hawthorn Crataegus aprica 83
- Supplejack Berchemia scandens 20
- Swamp Agrimony Agrimonia parviflora 33
- Swamp Azalea Rhododendron viscosum 90
- Swamp Buttercup Ranunculus carolinianus 54
- Swamp Chestnut Oak Quercus michauxii 88
- Swamp Cottonwood Populus heterophylla 67
- Swamp Dewberry Rubus hispidus 95
- Swamp Dock Rumex verticillatus 52
- Swamp Fetterbush Leucothoe racemosa 36
- Swamp Hornpod Mitreola sessilifolia 13
- Swamp Jessamine Gelsemium rankinii 14
- Swamp Leatherflower Clematis crispa 48
- Swamp Loosestrife Decodon verticillatus 49
- Swamp Lousewort Pedicularis lanceolata 33
- Swamp Milkweed Asclepias incarnata 71
- Swamp Pink Helonias bullata 8
- Swamp Post Oak Quercus similis —
- Swamp Redbay Persea palustris 73
- Swamp Rose Rosa palustris 76
- Swamp Rosemallow Hibiscus moscheutos 77
- Swamp Smartweed Persicaria hydropiperoides 78
- Swamp Tupelo Nyssa biflora 74
- Swamp Wedgescale Sphenopholis pensylvanica 8
- Swamp White Oak Quercus bicolor 88
- Swamp-candles Lysimachia terrestris 58
- Swamp-forest Beaksedge Rhynchospora decurrens 39
- Swan's Sedge Carex swanii 59
- Swaying Bulrush Schoenoplectus subterminalis 45
- Sweet Birch Betula lenta 74
- Sweet Cherry Prunus avium —
- Sweet Crabapple Malus coronaria 99
- Sweet Goldenrod Solidago odora 90
- Sweet Joe-pye-weed Eupatorium purpureum 88
- Sweet Pinesap Monotropsis odorata 8
- Sweet Pitcherplant Sarracenia rubra 36
- Sweet Potato Ipomoea batatas —
- Sweet Tanglehead Heteropogon melanocarpus —
- Sweet Vernal-grass Anthoxanthum odoratum —
- 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 Wormwood Artemisia annua —
- Sweet-fern Comptonia peregrina 46
- Sweetbay Magnolia Magnolia virginiana 72
- Sweetgum Liquidambar styraciflua 71
- Sweetshrub Calycanthus floridus 24
- Sweetshrub; Carolina Allspice; Sweet Bubbybush Calycanthus floridus var. glaucus —
- Switch Cane Arundinaria tecta 44
- Switchgrass Panicum virgatum 49
- Swollen Bladderwort Utricularia inflata 22
- Swollen Meadow-beauty Rhexia mariana var. ventricosa 43
- Sword-leaf Witchgrass Dichanthelium ensifolium 49
- Symphyotrichum elliotii Symphyotrichum elliotii —
- Symphyotrichum laeve var. concinnum Symphyotrichum laeve var. concinnum —
- Symphyotrichum laeve var. laeve Symphyotrichum laeve var. laeve —
- Symphyotrichum novi-belgii var. elodes Symphyotrichum novi-belgii var. elodes 93
- Symphyotrichum novi-belgii var. novi-belgii Symphyotrichum novi-belgii var. novi-belgii —
- Symphyotrichum subulatum var. parviflorum Symphyotrichum subulatum var. parviflorum —
T
- Table Mountain Pine Pinus pungens 74
- Tagetes lemmonii Tagetes lemmonii —
- Tagetes lucida Tagetes lucida —
- Taiwanese Redtip Photinia serratifolia —
- Talinum mengesii Talinum mengesii —
- Tall Beggarticks Bidens vulgata 87
- Tall Bellflower Campanulastrum americanum 36
- Tall Blue Wild Indigo Baptisia australis 76
- Tall Buttercup Ranunculus acris —
- Tall Fescue Lolium arundinaceum —
- Tall Fescue Schedonorus arundinaceus -55
- Tall Flat-top Aster Aster umbellatus 73
- Tall Goldenrod Solidago altissima 90
- Tall Hawkweed Hieracium piloselloides —
- Tall Horned Beaksedge Rhynchospora macrostachya 39
- Tall Jointweed Polygonella gracilis —
- Tall Lespedeza Lespedeza stuevei 70
- Tall Meadow-rue Thalictrum polygamum 46
- Tall Pinebarren Milkwort Polygala cymosa —
- Tall Rattlesnake-root Prenanthes altissima 46
- Tall Redtop Tridens flavus 31
- Tall Thimbleweed Anemone virginiana 28
- Tall Thistle Cirsium altissimum 88
- Tall Tick-trefoil Desmodium glabellum 69
- Tall Tickseed Coreopsis tripteris 71
- Tall Yellow-eyed-grass Xyris platylepis 36
- Tamarix africana Tamarix africana —
- Tamarix chinensis Tamarix chinensis —
- Tansy Mustard Descurainia pinnata 29
- Tapered Leaf Witch Grass Dichanthelium acuminatum subsp. acuminatum 49
- Taperleaf Bugleweed Lycopus rubellus 30
- Tapertip Rush Juncus acuminatus 44
- Tarheel Sedge Carex austrocaroliniana 59
- Taro Colocasia esculenta —
- Tassel Grape Hyacinth Muscari comosum —
- Tatarian Aster Aster tataricus —
- Tawny Cottongrass Eriophorum virginicum 12
- Taylor's Filmy-fern Hymenophyllum tayloriae 8
- Tea Viburnum Viburnum setigerum —
- Teal Lovegrass Eragrostis hypnoides 32
- Tecoma stans Tecoma stans —
- Ten Angled Pipewort; Hat Pin; Bog Button Eriocaulon decangulare var. decangulare —
- Ten-angle Pipewort Eriocaulon decangulare 14
- Ten-petal Anemone Anemone berlandieri 28
- Tenlobe False Foxglove Agalinis decemloba 54
- Terrestrial Water-starwort Callitriche terrestris 11
- Tetrapanax papyriferus Tetrapanax papyriferus —
- Texas Pipewort Eriocaulon texense 14
- Texas Sedge Carex texensis 59
- Texas Vervain Verbena halei —
- Thalictrum subrotundum Thalictrum subrotundum —
- Thelypteris hispidula var. versicolor Thelypteris hispidula var. versicolor —
- Thelypteris ovata Thelypteris ovata —
- Thevetia peruviana Thevetia peruviana —
- Thicket Bean Phaseolus polystachios 70
- Thicket Sedge Carex abscondita 59
- Thin Crowngrass Paspalum setaceum 67
- Thinleaf Mountain-mint Pycnanthemum montanum 40
- Thinleaf Sunflower Helianthus decapetalus 95
- Thorne's Beaksedge Rhynchospora thornei 39
- Thorny Olive Elaeagnus pungens -55
- Thread Stalk Beeblossom Gaura filipes 8
- Threadleaf Beaksedge Rhynchospora filifolia 39
- Threadleaf False Foxglove Agalinis setacea 54
- Threadleaf Sundrops Oenothera linifolia 81
- Three Birds Orchid Triphora trianthophora 8
- Three Lobe Violet Viola palmata 77
- Three Way Sedge; Threeway Sedge Dulichium arundinaceum var. arundinaceum —
- Three-angle Spikerush Eleocharis tricostata 34
- Three-way Sedge Dulichium arundinaceum 8
- Threepart Violet Viola tripartita 77
- Thunberg's Lespedeza Lespedeza thunbergii —
- Thunbergia grandiflora Thunbergia grandiflora —
- Thyme-leaf Pinweed Lechea minor 22
- Thymeleaf Bluet Houstonia serpyllifolia 35
- Thymeleaf Speedwell Veronica serpyllifolia —
- Tiarella cordifolia var. collina Tiarella cordifolia var. collina —
- Tiarella cordifolia var. cordifolia Tiarella cordifolia var. cordifolia —
- Tievine Ipomoea cordatotriloba 81
- Tilia heterophylla Tilia heterophylla —
- Tinted Spurge Euphorbia commutata 64
- Tiny Bluet Houstonia pusilla 35
- Tiny Mousetail Myosurus minimus 8
- Tiny Vetch Vicia hirsuta —
- Tithonia rotundifolia Tithonia rotundifolia —
- Titi Cyrilla racemiflora 45
- Toad Rush Juncus bufonius 44
- Tofieldia racemosa Tofieldia racemosa —
- Tooth Leaf Croton; Sand Croton Croton glandulosus var. septentrionalis —
- Tooth-leaved Croton Croton glandulosus —
- Toothache Grass Ctenium aromaticum 15
- Toothed Flatsedge Cyperus dentatus 38
- Toothed Medick Medicago polymorpha —
- Toothed Rosinweed Silphium asteriscus var. laevicaule 51
- Toothed Spurge Euphorbia dentata 64
- Toothed Whitetop Aster Sericocarpus asteroides 48
- Torpedo Grass Panicum repens -15
- Torrey's Beaksedge Rhynchospora torreyana 39
- Torrey's Pinweed Lechea torreyi 22
- Torreyochloa pallida var. pallida Torreyochloa pallida var. pallida —
- Tough Bumelia Sideroxylon tenax 71
- Toxicodendron radicans subsp. radicans Toxicodendron radicans subsp. radicans —
- Trachelospermum jasminoides Trachelospermum jasminoides —
- Tracy's Beaksedge Rhynchospora tracyi 39
- Tracy's Bluestem Andropogon tracyi 54
- Tradescantia pallida Tradescantia pallida —
- Trailing Arbutus Epigaea repens 37
- Trailing Fuzzy-bean Strophostyles helvula 56
- Trailing Lespedeza Lespedeza procumbens 71
- Trailing Pearlwort Sagina decumbens 8
- Trailing Phlox Phlox nivalis 52
- Tree-of-heaven Ailanthus altissima -95
- Triangle Orach Atriplex prostrata —
- Trifoliate Orange Poncirus trifoliata -55
- Trifolium subterraneum Trifolium subterraneum —
- Triglochin striatum Triglochin striatum —
- Trillium decipiens Trillium decipiens —
- Trillium lanceolatum Trillium lanceolatum —
- Trillium persistens Trillium persistens —
- Trillium reliquum Trillium reliquum —
- Triodanis perfoliata var. perfoliata Triodanis perfoliata var. perfoliata —
- Trisetum flavescens Trisetum flavescens —
- Tropical Flatsedge Cyperus surinamensis 38
- Tropical Mexican-clover Richardia brasiliensis —
- Tropical Water-hyssop Bacopa innominata 36
- 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
- Tuliptree Liriodendron tulipifera 66
- Tumble Mustard Sisymbrium altissimum —
- Tuna Cactus Opuntia ficus-indica —
- Tung-oil Tree Vernicia fordii —
- Turk's-cap Lily Lilium superbum 47
- Turkey Oak Quercus laevis 88
- Twig-rush Cladium mariscoides 27
- Twining Screwstem Bartonia paniculata 8
- Twinleaf Jeffersonia diphylla 9
- Twisted Sedge Carex torta 59
- Twisted Spikerush Eleocharis tortilis 34
- Twisted-hair Spikemoss Selaginella tortipila —
- Twistleaf Goldenrod Solidago tortifolia 90
- Two-flower Melicgrass Melica mutica 8
- Two-headed Water-starwort Callitriche heterophylla 11
- Two-leaved Toothwort Cardamine diphylla 40
- 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 —
- Typha angustifolia Typha angustifolia 53
U
- Umbrella Magnolia Magnolia tripetala 71
- Umbrella-leaf Diphylleia cymosa 8
- Upland Bentgrass Agrostis perennans 45
- Upland Boneset Eupatorium sessilifolium 83
- Upland Cotton Gossypium hirsutum —
- 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 Carrion Flower Smilax ecirrhata —
- Urochloa mutica Urochloa mutica —
- Uvularia floridana Uvularia floridana —
- Uvularia puberula var. nitida Uvularia puberula var. nitida —
V
- Vaccinium myrsinites Vaccinium myrsinites —
- Vahl's Fimbry Fimbristylis vahlii 15
- Valdivia Duckweed Lemna valdiviana 31
- Variable Flatsedge Cyperus difformis —
- Variable Witchgrass Dichanthelium commutatum 50
- Variable-leaf Heartleaf Hexastylis heterophylla 15
- Variable-leaf Water-milfoil Myriophyllum heterophyllum 33
- Variableleaf Sunflower Helianthus heterophyllus 95
- Vasevine Leatherflower Clematis viorna 48
- Vasey-grass Paspalum urvillei -30
- Vasey's Trillium Trillium vaseyi 24
- Veined Skullcap Scutellaria nervosa 37
- Velvet Witchgrass Dichanthelium scoparium 49
- Velvetleaf Abutilon theophrasti —
- Velvetleaf Milkweed Asclepias tomentosa 67
- Velvety Tick-trefoil Desmodium viridiflorum 69
- Venus Flytrap Dionaea muscipula 13
- Venus'-comb Scandix pecten-veneris —
- Venus's-hair Fern Adiantum capillus-veneris 15
- Verbena engelmannii Verbena engelmannii —
- Verbena tenera Verbena tenera —
- Verbesina microptera Verbesina microptera —
- Vernonia angustifolia subsp. angustifolia Vernonia angustifolia subsp. angustifolia —
- Veronica peregrina subsp. peregrina Veronica peregrina subsp. peregrina —
- Viburnum dentatum var. scabrellum Viburnum dentatum var. scabrellum —
- Viburnum nudum var. nudum Viburnum nudum var. nudum —
- Viburnum obovatum Viburnum obovatum —
- Viburnum odoratissimum Viburnum odoratissimum —
- Viburnum suspensum Viburnum suspensum —
- Viburnum tinus Viburnum tinus —
- Vicia sativa subsp. nigra Vicia sativa subsp. nigra —
- Vicia villosa subsp. varia Vicia villosa subsp. varia —
- Vicia villosa subsp. villosa Vicia villosa subsp. villosa —
- Viola esculenta Viola esculenta —
- Viola pedata var. lineariloba Viola pedata var. lineariloba —
- Viola primulifolia var. acuta Viola primulifolia var. acuta —
- Viola pubescens var. eriocarpon Viola pubescens var. eriocarpon —
- Viola vittata Viola vittata —
- Violet Crabgrass Digitaria violascens —
- Violet Lespedeza Lespedeza frutescens 70
- Violet Woodsorrel Oxalis violacea 58
- Viperina Zornia bracteata 16
- Virginia Bugleweed Lycopus virginicus 30
- Virginia Bunchflower Veratrum virginicum 26
- Virginia Buttonweed Diodia virginiana 22
- Virginia Chain-fern Woodwardia virginica 25
- Virginia Creeper Parthenocissus quinquefolia 72
- Virginia Dayflower Commelina virginica 51
- Virginia Dwarf-dandelion Krigia virginica 25
- Virginia False Gromwell Onosmodium virginianum —
- Virginia Ground-cherry Physalis virginiana 73
- Virginia Heartleaf Hexastylis virginica 15
- Virginia Iris Iris virginica 57
- Virginia Mallow; Arrowleaved Sida; Arrow Leaf Sida; Arrow Leaved Sida; Arrowleaf Sida Sida rhombifolia var. rhombifolia —
- Virginia Marsh St. John's-wort Triadenum virginicum 68
- Virginia Meadow-beauty Rhexia virginica 43
- Virginia Pennywort Obolaria virginica 8
- Virginia Peppergrass Lepidium virginicum 60
- Virginia Pine Pinus virginiana 74
- Virginia Plantain Plantago virginica 69
- Virginia Snakeroot Aristolochia serpentaria 20
- Virginia Spiderwort Tradescantia virginiana 57
- Virginia Spring-beauty Claytonia virginica 34
- Virginia Sweetspire Itea virginica 33
- Virginia Thistle Carduus virginianus 87
- 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. rotundifolia Vitis rotundifolia var. rotundifolia —
- Viviparous Spikerush Eleocharis vivipara —
W
- Wafer Ash; Hop Tree Ptelea trifoliata var. mollis —
- Walking Fern Asplenium rhizophyllum 15
- Walter's Aster Symphyotrichum walteri 93
- Walter's Sedge Carex striata 59
- Wand Blazing-star Liatris virgata 56
- Wand Lespedeza Lespedeza intermedia 70
- Wand Loosestrife Lythrum lineare 59
- Wand Mullein Verbascum virgatum —
- Wand-like Three-awn Aristida purpurascens var. virgata 21
- Ware's Hairsedge Bulbostylis warei 8
- Warty Panicgrass Panicum verrucosum 49
- Warty Sedge Carex verrucosa 59
- Warty Spurge Euphorbia spathulata 64
- Washington Hawthorn Crataegus phaenopyrum 83
- Water Cowbane Oxypolis filiformis 27
- Water Dawnflower Stylisma aquatica 22
- Water Hemlock Cicuta maculata var. maculata 48
- Water Hickory Carya aquatica 74
- Water Lettuce Pistia stratiotes —
- Water Locust Gleditsia aquatica —
- Water Mint Mentha aquatica —
- Water Oak Quercus nigra 88
- Water Sedge Carex aquatilis —
- Water Tupelo Nyssa aquatica 74
- Water-grass Bulbostylis barbata —
- Water-shield Brasenia schreberi 35
- Water-spider Orchid Habenaria repens 15
- Watercress Nasturtium officinale —
- Watermelon Citrullus lanatus —
- Waterpod Hydrolea quadrivalvis 14
- Waterthread Pondweed Potamogeton diversifolius 42
- Wavy Hairgrass Deschampsia flexuosa —
- Wavyleaf Aster Aster undulatus 93
- Wavyleaf Noseburn Tragia urens 12
- Waxy Mannagrass Glyceria declinata —
- Waxyleaf Meadow-rue Thalictrum revolutum 46
- Weak Rush Juncus debilis 44
- Weak Stellate Sedge Carex seorsa 59
- Weakleaf Yucca Yucca flaccida 53
- Weakstalk Bulrush Schoenoplectus purshianus 45
- Weatherby's Arrowhead Sagittaria graminea var. weatherbiana —
- Wedgeleaf Thoroughwort Eupatorium cuneifolium 81
- Weeping Lovegrass Eragrostis curvula -15
- Weeping Willow Salix babylonica —
- Weigela Weigela floribunda —
- West Indian Meadow-beauty Rhexia cubensis 43
- Western Oxeye Heliopsis helianthoides var. scabra —
- Western Sampson's-snakeroot Orbexilum pedunculatum 34
- Western Witch Grass; Western Panic Grass Dichanthelium acuminatum subsp. fasciculatum —
- Whip Nutrush Scleria triglomerata 12
- Whiskfern Psilotum nudum 8
- White Amaranth Amaranthus albus —
- White Arrowleaf Aster Symphyotrichum urophyllum 93
- White Ash Fraxinus americana 75
- White Avens Geum canadense 21
- White Baneberry Actaea pachypoda 30
- White Beggar Ticks Bidens alba var. radiata —
- White Bergamot Monarda clinopodia 69
- 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 29
- White Doll's-daisy Boltonia asteroides 27
- White Edged Flat Sedge Cyperus flavicomus 38
- White Fringeless Orchid Platanthera integrilabia 27
- White Goldenrod Solidago bicolor 90
- White Heath Aster Symphyotrichum ericoides 93
- White Heath Aster; Squarrose White Aster Symphyotrichum ericoides var. ericoides 93
- White Irisette Sisyrinchium dichotomum 16
- White Leaf Leather Flower Clematis glaucophylla —
- White Milkweed Asclepias variegata 67
- White Morning-glory Ipomoea lacunosa 81
- White Mulberry Morus alba -55
- White Oak Quercus alba 88
- White Panicle Aster Symphyotrichum lanceolatum 93
- White Poplar Populus alba -30
- White Prairie Clover Dalea candida —
- White Rattlesnake-root Prenanthes alba —
- White Sagebrush Artemisia ludoviciana —
- White Snakeroot Ageratina altissima 85
- White Spikerush Eleocharis albida 34
- White Thoroughwort Eupatorium album 81
- White Turtlehead Chelone glabra 29
- White Vervain Verbena urticifolia 77
- White Wild Indigo Baptisia alba 76
- White Wood-aster Eurybia divaricata 56
- White-bracted Thoroughwort Eupatorium leucolepis 81
- White-edge Sedge Carex debilis 59
- White-nymph Trepocarpus aethusae 8
- White-wicky Kalmia cuneata 77
- Whiteflowered Petunia Petunia axillaris —
- Whitehair Witchgrass Dichanthelium villosissimum 49
- Whitehead Bogbutton Lachnocaulon anceps 8
- Whiteleaf Sunflower Helianthus glaucophyllus 95
- Whiteroot Rush Juncus brachycarpus 44
- Whitetinge Sedge Carex albicans 59
- Whitetinge Sedge Carex albicans var. albicans 59
- Whitetop Pitcherplant Sarracenia leucophylla —
- Whorled Horsebalm Collinsonia verticillata 29
- Whorled Loosestrife Lysimachia quadrifolia 58
- Whorled Milkweed Asclepias verticillata 72
- Whorled Milkwort Polygala verticillata —
- Whorled Tickseed Coreopsis verticillata 68
- Whorled Wood-aster Oclemena acuminata 56
- Wideflower Phlox Phlox latifolia —
- Widgeon-grass Ruppia maritima 13
- Widow Sedge Carex basiantha 59
- Wild Bergamot Monarda fistulosa 72
- Wild Bleeding-heart Dicentra eximia 13
- Wild Blue Phlox Phlox divaricata 54
- Wild Comfrey Cynoglossum virginianum 29
- Wild Dock Rumex hastatulus 52
- Wild Field Pansy Viola bicolor —
- Wild Geranium Geranium maculatum 79
- Wild Hyacinth Camassia scilloides 17
- Wild Leek Allium ampeloprasum —
- Wild Olive Osmanthus americanus —
- Wild Pink Silene caroliniana 42
- Wild Poinsettia Euphorbia cyathophora 64
- Wild Potato-vine Ipomoea pandurata 82
- Wild Quinine; Feverfew Parthenium integrifolium var. integrifolium 70
- Wild Radish Raphanus raphanistrum —
- Wild Sarsaparilla Aralia nudicaulis 65
- Wild Strawberry Fragaria virginiana 80
- Willow Oak Quercus phellos 88
- Windowbox Woodsorrel Oxalis articulata —
- Wineberry Rubus phoenicolasius —
- Winged Burning-bush Euonymus alatus —
- Winged Elm Ulmus alata 76
- Winged Pigweed Cycloloma atriplicifolium —
- Winged Seedbox Ludwigia alata 65
- Winged Sumac Rhus copallinum 90
- Wingleaf Primrose-willow Ludwigia decurrens 65
- Wingstem Verbesina alternifolia 80
- Winter Bentgrass Agrostis hyemalis 45
- Winter Grapefern Botrychium lunarioides 11
- Winter Honeysuckle Lonicera fragrantissima -55
- Wire Sedge Carex tenax 59
- Wireleaf Dropseed Sporobolus teretifolius 31
- Wiry Panicgrass Panicum flexile 49
- Witherod Viburnum Viburnum cassinoides 85
- Wood Anemone Anemone quinquefolia 29
- Wood Violet Viola subsinuata 77
- Woodland Agrimony Agrimonia rostellata 33
- Woodland Bittercress Cardamine flexuosa —
- Woodland Bluegrass Poa sylvestris 59
- Woodland Bulrush Scirpus expansus 45
- Woodland Lettuce Lactuca floridana 88
- Woodland Rush Juncus subcaudatus 44
- Woodland Sunflower Helianthus divaricatus 98
- Woody Goldenrod Chrysoma pauciflosculosa 97
- Woolgrass Bulrush Scirpus cyperinus 45
- Woolly Chaffhead Carphephorus tomentosus 40
- Woolly Croton Croton capitatus 73
- Woolly Dutchman's-pipe Aristolochia tomentosa —
- Woolly Fimbry Fimbristylis tomentosa —
- Woolly Lipfern Cheilanthes tomentosa 8
- Woolly Ragwort Packera tomentosa —
- Woolly Sunbonnets Chaptalia tomentosa 13
- Woolly Witchgrass Dichanthelium acuminatum 49
- Woolly Witchgrass Dichanthelium scabriusculum 49
- Woollysheath Three-awn Aristida lanosa 21
- Wright's Beaksedge Rhynchospora wrightiana 39
- Wright's Plantain Plantago wrightiana —
- Wright's Witchgrass Dichanthelium wrightianum 49
- Wrinkle Leaf Goldenrod; Rough Leaf Goldenrod Solidago rugosa var. celtidifolia 90
- Wrinkle-leaf Goldenrod Solidago rugosa 90
- Wrinkled Joint Grass Coelorachis rugosa —
- Wych Elm; Scotch Elm Ulmus glabra —
X
- Xanthisma spinulosum Xanthisma spinulosum —
- Xanthium strumarium Xanthium strumarium —
- Xylorhiza tortifolia Xylorhiza tortifolia —
- Xylorhiza tortifolia var. tortifolia Xylorhiza tortifolia var. tortifolia —
- Xyris difformis var. difformis Xyris difformis var. difformis —
- Xyris elliottii Xyris elliottii —
- Xyris laxifolia Xyris laxifolia —
Y
- Yadkin River Goldenrod Solidago plumosa —
- Yankee Blackberry; Yankee Black Berry Rubus enslenii —
- Yankeeweed Eupatorium compositifolium 81
- Yaupon Black-senna Seymeria cassioides 29
- Yaupon Holly Ilex vomitoria 97
- Yellow Bristlegrass Setaria pumila —
- Yellow Buckeye Aesculus flava 71
- Yellow Butterwort Pinguicula lutea 8
- Yellow Crownbeard Verbesina occidentalis 80
- Yellow Flatsedge Cyperus flavescens 38
- Yellow Floating-heart Nymphoides peltata —
- Yellow Fringeless Orchid Platanthera integra 27
- Yellow Fumewort Corydalis flavula 17
- Yellow Hatpins Syngonanthus flavidulus 17
- Yellow Honeysuckle Lonicera flava 75
- Yellow Indiangrass Sorghastrum nutans 48
- Yellow Ladies'-tresses Spiranthes ochroleuca 22
- Yellow Lady's-slipper Cypripedium parviflorum —
- Yellow Mandarin Disporum lanuginosum —
- Yellow Meadow-beauty Rhexia lutea 43
- Yellow Nutsedge Cyperus esculentus —
- Yellow Passionflower Passiflora lutea 56
- Yellow Pimpernel Taenidia integerrima 23
- Yellow Pitcherplant Sarracenia flava 36
- Yellow Rocket-cress Barbarea vulgaris —
- 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 87
- 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 59
- Yellowroot Xanthorhiza simplicissima 8
- Yellowseed False Pimpernel Lindernia dubia var. dubia —
- Yellowseed False-pimpernel Lindernia dubia 23
Z
- Zigzag Bladderwort Utricularia subulata 22
- Zigzag Spiderwort Tradescantia subaspera 55
- Zigzag Spiderwort Tradescantia subaspera var. montana 55
- Zinnia angustifolia Zinnia angustifolia —
- Zinnia linearis Zinnia linearis —
- Zinnia violacea Zinnia violacea —