Plant catalogue
Kentucky
2,717 plants in the catalogue. 1,757 scored native plants. 312 plants without a resolved native score. Find natives for your garden → Plants by wildlife
A
- Acuminate Wild-ginger Asarum acuminatum 15
- Alabama Arrow Wood Viburnum alabamense —
- Alabama Azalea Rhododendron alabamense —
- Alabama Lipfern Myriopteris alabamensis 8
- Alabama Snow Wreath Neviusia alabamensis —
- Alfalfa Medicago sativa —
- Alkali Muhly; Scratchgrass; Scratch Grass Muhlenbergia asperifolia —
- Allegheny Blackberry Rubus allegheniensis 95
- Allegheny Brookfoam Boykinia aconitifolia 8
- Allegheny Chinquapin Castanea pumila 87
- Allegheny Hawkweed Hieracium paniculatum 46
- Allegheny Monkey Flower Mimulus ringens var. ringens 40
- Allegheny Mountain Buttercup Ranunculus allegheniensis 59
- Allegheny Mountain Golden-banner Thermopsis mollis 36
- Allegheny Sedge Carex allegheniensis 58
- Allegheny Serviceberry Amelanchier laevis 80
- Allegheny Stonecrop Hylotelephium telephioides 52
- Allegheny-spurge Pachysandra procumbens 13
- Allegheny-vine Adlumia fungosa 8
- Alligator-weed Alternanthera philoxeroides -85
- Alpine Knapweed Centaurea transalpina —
- Alpine Rock Cress Arabis caucasica —
- Alsike Clover Trifolium hybridum —
- Amazon Sprangletop Dinebra panicoides —
- American Alumroot Heuchera americana 25
- American Barberry Berberis canadensis 56
- American Barnyard-grass Echinochloa muricata 34
- American Basswood Tilia americana 70
- American Beakgrass Diarrhena americana 8
- American Beautyberry Callicarpa americana 42
- American Beech Fagus grandifolia 72
- American Beech Fagus grandifolia var. caroliniana 72
- American Beech Fagus grandifolia var. grandifolia 72
- American Bittercress Cardamine rotundifolia 51
- American Bittersweet Celastrus scandens 35
- American Bladdernut Staphylea trifolia 30
- American Bluehearts Buchnera americana 15
- American Bugleweed Lycopus americanus 33
- American Bugseed; American Bug Seed Corispermum americanum —
- American Bur-reed Sparganium americanum 36
- American Burnweed Erechtites hieraciifolius 23
- American Cancer-root Conopholis americana 8
- American Chestnut Castanea dentata 87
- American Climbing Fern Lygodium palmatum 8
- American Columbo Frasera caroliniensis 29
- American Dittany Cunila origanoides 21
- American Dog Violet Viola labradorica 78
- American Eelgrass Vallisneria americana 26
- American Elm Ulmus americana 76
- American Elm Ulmus americana var. 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 Golden-saxifrage Chrysosplenium americanum 8
- American Gromwell Lithospermum latifolium —
- American Groundnut Apios americana 40
- American Hazelnut Corylus americana 56
- American Hog-peanut Amphicarpaea bracteata 47
- American Holly Ilex opaca 97
- American Hop-hornbeam Ostrya virginiana 65
- American Hornbeam Carpinus caroliniana 69
- American Ipecac Gillenia stipulata 17
- American Lily-of-the-valley Convallaria pseudomajalis —
- American Lopseed Phryma leptostachya 8
- American Lotus Nelumbo lutea 39
- American Lovage Ligusticum canadense 21
- American Mistletoe Phoradendron leucarpum 25
- American Pennyroyal Hedeoma pulegioides 23
- American Persimmon Diospyros virginiana 75
- American Plum Prunus americana 100
- American Pokeweed Phytolacca americana 66
- American Red Raspberry; Red Raspberry; American Red Rasp Berry; Red Rasp Berry Rubus idaeus 95
- American Senna Senna hebecarpa 57
- American Smoke Tree Cotinus obovatus —
- American Snowbell Styrax americanus 35
- 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 37
- American Wisteria Wisteria frutescens 56
- American Witch-hazel Hamamelis virginiana 71
- American Witchgrass Dichanthelium columbianum 49
- Amur Honeysuckle Lonicera maackii -55
- Amur Maple Acer ginnala —
- Amur Peppervine Ampelopsis brevipedunculata -85
- Anglepod Gonolobus suberosus 15
- Anglestem Primrose-willow Ludwigia leptocarpa 53
- Annual Bluegrass Poa annua -30
- Annual Fimbry Fimbristylis annua 15
- Annual Fleabane Erigeron annuus 87
- Annual Honesty Lunaria annua —
- Annual Knawel Scleranthus annuus —
- Annual Marsh-elder Iva annua 26
- Annual Vernal-grass Anthoxanthum aristatum —
- Appalachian Black Cohosh Actaea rubifolia —
- Appalachian Blazing-star Liatris squarrulosa 59
- Appalachian Bunchflower Melanthium parviflorum 32
- Appalachian Dwarf Gentian Gentianella quinquefolia 29
- Appalachian Dwarf Gentian Gentianella quinquefolia 29
- Appalachian Filmy-fern Vandenboschia boschiana 8
- Appalachian Firmoss Huperzia appressa 11
- Appalachian Goldenrod Solidago flaccidifolia 93
- Appalachian Gooseberry Ribes rotundifolium 76
- Appalachian Joe-pye-weed Eutrochium steelei 83
- Appalachian Orange Coneflower Rudbeckia umbrosa —
- Appalachian Ragwort Onopordum acanthium —
- Appalachian Rockcap Fern Polypodium appalachianum 21
- Appalachian Rosinweed Silphium wasiotense —
- Appalachian Sandwort Geocarpon glabrum 12
- Appalachian Sedge Carex appalachica 58
- Appalachian Shoestring Fern Vittaria appalachiana 8
- Appalachian Small Spreading Pogonia Cleistesiopsis bifaria 8
- Appalachian Woodland Sedge Carex austrolucorum 58
- Apple Mint; Pineapple Mint; Roundleaved Mint; Roundleaf Mint; Round Leaved Mint; Round Leaf Mint; Applemint; Wooly Mint; Pineapplemint; Woolymint Mentha suaveolens ssp. suaveolens —
- Apple-of-Peru Nicandra physalodes —
- Aquatic Milkweed Asclepias perennis 66
- Arkansas Manna Grass Glyceria arkansana —
- Aromatic Aster Symphyotrichum oblongifolium 95
- Arrowfeather Three-awn Aristida purpurascens 8
- Arrowhead Rattlebox Crotalaria sagittalis 55
- Arrowleaf Tearthumb Persicaria sagittata 76
- Arrowleaf Violet Viola sagittata 78
- Artillery Plant Pilea microphylla —
- Ashes Witch Grass Dichanthelium commutatum ssp. ashei —
- Ashy Hydrangea Hydrangea cinerea 56
- Ashy Sunflower Helianthus mollis 97
- Asian Flatsedge; Asian Flat Sedge Cyperus microiria —
- Asiatic Dayflower Commelina communis -15
- Atlantic Poison-oak Toxicodendron pubescens 81
- Autumn Bluegrass Poa autumnalis 59
- Autumn Coralroot Corallorhiza odontorhiza 8
- Autumn Goldenrod Solidago sphacelata 93
- Autumn Olive Elaeagnus umbellata -85
- Autumn Onion Allium stellatum —
- Awl-fruit Sedge Carex stipata 58
- Awnless Beggarticks Bidens polylepis 86
- Awnless Wild Rye Elymus curvatus —
- Axilflower Mecardonia acuminata 8
- Axillary Goldenrod; Buckleys Goldenrod; Axillary Golden Rod; Buckleys Golden Rod Solidago buckleyi 93
- Azure Aster Symphyotrichum oolentangiense var. oolentangiense —
- Azure Bluet Houstonia caerulea 35
- Azure Sage Salvia azurea —
B
- Bailey's Sedge Carex baileyi 58
- Bald Brome Bromus racemosus -30
- Bald Cypress Taxodium distichum 49
- Bald Spikerush Eleocharis erythropoda 34
- Baldwins Flat Sedge Cyperus croceus 36
- Balkan Bladder Campion; Balkan Catchfly; Balkan Catch Fly Silene csereii —
- Balm of Gilead Populus x jackii 67
- Balsam Poplar Populus balsamifera 67
- Balsam Ragwort Packera paupercula 81
- Barbed Rattlesnake Root Nabalus barbatus —
- Barberry Hawthorn Crataegus berberifolia 85
- Barksdale Trillium Trillium sulcatum 24
- Barnyard Grass Echinochloa crusgalli var. crusgalli —
- Barrelhead Blazing Star Liatris cylindracea —
- Barren St. Johnswort Hypericum sphaerocarpum —
- Barrens Milkweed Asclepias hirtella —
- Barrens Silky Aster Symphyotrichum pratense 95
- Bartleys Firmoss; Bartleys Fir Moss Huperzia x bartleyi —
- Bashful Bulrush; Bashful Bul Rush Trichophorum planifolium —
- Bastard Toadflax Comandra umbellata 22
- Bay Starvine Schisandra glabra 8
- Beach False Foxglove Agalinis fasciculata 54
- Beaked Cornsalad Valerianella radiata 23
- Beaked Hawkweed Hieracium gronovii 46
- Beaked Panicgrass Coleataenia anceps 49
- Beaked Trout Lily Erythronium rostratum —
- Bear Huckleberry Gaylussacia ursina 81
- Bearded Beggarticks Bidens aristosa 90
- Bearded Flatsedge Cyperus squarrosus 36
- Bearded Shorthusk Brachyelytrum erectum 19
- Bearded Skeleton-grass Gymnopogon ambiguus 8
- Bearded Sprangletop Diplachne fascicularis 20
- Bears Foot Smallanthus uvedalia 31
- Beautybush Kolkwitzia amabilis —
- Beechdrops Epifagus virginiana 12
- Beefsteak-plant Perilla frutescens -55
- Bent Sedge Carex styloflexa 58
- Bent-awn Plumegrass Erianthus contortus 37
- Bermuda Grass Cynodon dactylon —
- Bicolor Lespedeza Lespedeza bicolor -85
- Biennial Beeblossom Oenothera gaura 80
- Big Bluestem Andropogon gerardi 51
- Big Seed Alfalfa Dodder Cuscuta indecora 43
- Bigleaf Aster Eurybia macrophylla 70
- Bigleaf Magnolia Magnolia macrophylla 71
- Bigleaf Periwinkle Vinca major —
- Bigleaf Snowbell Styrax grandifolius 35
- Bigpodded Sesbania Sesbania herbacea 56
- Bigtooth Aspen Populus grandidentata 67
- Bigtop Lovegrass Eragrostis hirsuta 32
- Biltmore Ash Fraxinus biltmoreana 75
- Bird Spiderflower; Iberian Spiderflower; Bird Spider Flower; Iberian Spider Flower Cleome ornithopodioides —
- Bird's-eye Speedwell Veronica persica —
- Bird's-foot Violet Viola pedata 80
- Bishop's Goutweed Aegopodium podagraria —
- Bitter Dock Rumex obtusifolius —
- Bitternut Hickory Carya cordiformis 74
- Bittersweet Nightshade Solanum dulcamara -15
- Black Bindweed Fallopia convolvulus —
- Black Cherry Prunus serotina 100
- Black Chokeberry Aronia melanocarpa 89
- Black Cohosh Actaea racemosa 25
- Black Highbush Blueberry Vaccinium fuscatum 98
- Black Huckleberry Gaylussacia baccata 81
- Black Jetbead Rhodotypos scandens -30
- Black Knapweed Centaurea nigra —
- Black Locust Robinia pseudoacacia 70
- Black Maple Acer saccharum ssp. nigrum 86
- Black Medick Medicago lupulina -55
- Black Mulberry Morus nigra —
- Black Mustard Brassica nigra —
- Black Oak Quercus velutina 88
- Black Raspberry Rubus occidentalis 97
- Black Seed Rice Grass Patis racemosa —
- Black Swallow Wort Vincetoxicum nigrum —
- Black Walnut Juglans nigra 53
- Black Willow Salix nigra 100
- Black-edge Sedge Carex nigromarginata 58
- Black-eyed Susan Rudbeckia hirta 80
- Blackberry-lily Iris domestica —
- Blackeyed Susan Rudbeckia hirta var. pulcherrima 75
- Blackfoot Rush; Blackgrass; Saltmarsh Rush; Saltmeadow Rush; Black Foot Rush; Black Grass; Salt Marsh Rush; Salt Meadow Rush Juncus gerardi —
- Blackgum Nyssa sylvatica 75
- Blackjack Oak Quercus marilandica 88
- Blackseed Plantain Plantago rugelii 70
- Blackstem Spleenwort Asplenium resiliens 15
- Bladder Campion Silene vulgaris —
- Bladder Sedge Carex intumescens 58
- Bloodroot Sanguinaria canadensis 34
- Blue Ash Fraxinus quadrangulata —
- Blue Field-madder Sherardia arvensis —
- Blue Ground-cedar Diphasiastrum tristachyum 11
- Blue Mistflower Conoclinium coelestinum 84
- Blue Mud Plantain Heteranthera limosa —
- Blue Mustard Chorispora tenella —
- Blue Plantain-lily Hosta ventricosa —
- Blue Ridge Blueberry Vaccinium altomontanum 98
- Blue Ridge Carrion-flower Smilax lasioneura 68
- Blue Ridge Catchfly Silene ovata 49
- Blue Ridge Golden-banner Thermopsis villosa 36
- Blue Ridge Sedge Carex lucorum 58
- Blue Ridge Skullcap Scutellaria arguta —
- Blue Sage; Prairie Azure Sage Salvia azurea var. grandiflora —
- Blue Sedge Carex glaucodea 58
- Blue Vervain Verbena hastata 80
- Blue Waxweed Cuphea viscosissima 25
- Blue Wood Sedge Carex flaccosperma 58
- Bluebead-lily Clintonia borealis 8
- Blueflower Eryngo Eryngium integrifolium 51
- Bluejoint Reedgrass Calamagrostis canadensis 28
- Bluestem Goldenrod Solidago caesia 93
- Blunt Broom Sedge Carex tribuloides 58
- 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
- Bog Jack-in-the-pulpit Arisaema stewardsonii 18
- Bog Rush Juncus biflorus 49
- Bog Smartweed Persicaria setacea 76
- Bog Yellow-eyed-grass Xyris difformis 29
- Bog Yellowcress Rorippa palustris 36
- Border Privet Ligustrum obtusifolium —
- Bosc's Bluet Oldenlandia boscii 13
- Bosc's Witchgrass Dichanthelium boscii 49
- Boston Ivy Parthenocissus tricuspidata —
- Bothriochloa laguroides Bothriochloa laguroides —
- Bottle Gourd Lagenaria siceraria —
- Bottomland Aster Symphyotrichum ontarionis 95
- Bowman's-root Gillenia trifoliata 17
- Box Huckleberry Gaylussacia brachycera 81
- Box-elder Acer negundo 86
- Boykins Cluster Pea Lackeya multiflora —
- Bracted Vervain Verbena bracteata 77
- Bradford Pear Pyrus calleryana -85
- Bradley's Spleenwort Asplenium bradleyi 15
- Branched Broomrape Orobanche ramosa —
- Branched Bur Reed Sparganium androcladum —
- Branched Draba Draba ramosissima 23
- Branched Foldwing Dicliptera brachiata 8
- Brassica rapa Brassica rapa —
- Brassica rapa Brassica rapa —
- Brauns Rock Cress Borodinia perstellata —
- Brazilian Vervain Verbena brasiliensis —
- Brazilian Watermeal Wolffia brasiliensis 11
- Brazilian Waterweed Egeria densa —
- Bread Wheat Triticum aestivum —
- Bridal-wreath Spiraea Spiraea prunifolia —
- Bristle-leaf Sedge Carex eburnea 58
- Bristly Buttercup Ranunculus hispidus 59
- Bristly Greenbrier Smilax hispida 72
- Bristly Locust Robinia hispida 70
- Bristly Scaleseed Spermolepis echinata 15
- Bristly-stalk Sedge Carex leptalea 58
- Brittle Bladder Fern Cystopteris fragilis 8
- Brittle Waternymph Najas minor -30
- Broad Beech Fern Phegopteris hexagonoptera 35
- Broad Leaf Arrow Head Sagittaria latifolia var. latifolia 56
- Broad Looseflower Sedge Carex laxiflora 58
- Broadleaf Arrowhead Sagittaria latifolia 60
- Broadleaf Cattail Typha latifolia 52
- Broadleaf Enchanter's-nightshade Circaea canadensis 9
- Broadleaf Enchanters Nightshade Circaea lutetiana 8
- Broadleaf Helleborine Epipactis helleborine —
- Broadleaf Pond-lily Nuphar advena 54
- Broadleaf Sedge Carex platyphylla 59
- Broadleaf Signal-grass Urochloa platyphylla —
- Broadleaf Witchgrass Dichanthelium latifolium 49
- Broadwing Sedge Carex alata 58
- Brome Fescue Vulpia bromoides —
- Brome-like Sedge Carex bromoides 58
- Broomsedge Andropogon virginicus 51
- Brown Knapweed Centaurea jacea —
- Brown-eyed Susan Rudbeckia triloba 80
- Brownish Beaksedge Rhynchospora capitellata 39
- Buckthorn Bumelia Sideroxylon lycioides 71
- Buckwheat Fagopyrum esculentum —
- Buckwheat Vine Brunnichia ovata —
- Buffalo Clover Trifolium reflexum 95
- Buffalo-bur Nightshade Solanum rostratum —
- Buffalo-nut Pyrularia pubera 10
- Bulblet Bladder Fern Cystopteris bulbifera 8
- Bulbous Bittercress Cardamine bulbosa 53
- Bulbous Bluegrass Poa bulbosa —
- Bulbous Buttercup Ranunculus bulbosus -30
- Bulbous Woodrush Luzula bulbosa 12
- Bull Crowngrass Paspalum boscianum 59
- Bull Thistle Cirsium vulgare -30
- Bur Oak Quercus macrocarpa —
- Bur-reed Sedge Carex sparganioides 58
- Bush's Sedge Carex bushii 58
- Bushs Muhly Muhlenbergia bushii 27
- Bushy Aster Symphyotrichum dumosum 95
- Bushy Bluestem Andropogon glomeratus 51
- Bushy Goldentop Euthamia leptocephala —
- Bushy Knotweed Polygonum ramosissimum ssp. ramosissimum —
- Bushy Seedbox Ludwigia alternifolia 53
- Bushy St. John's-wort Hypericum densiflorum 72
- Butler's Sand-parsley Ammoselinum butleri —
- Butter-and-eggs Linaria vulgaris —
- Butterfly Milkweed Asclepias tuberosa 69
- Butternut Juglans cinerea 53
- Butterweed Packera glabella 81
- Buttonbush Cephalanthus occidentalis 79
- Buttonbush Dodder Cuscuta cephalanthi 43
- Buxbaum's Sedge Carex buxbaumii 58
C
- Cabbage Brassica oleracea —
- Caley Pea Lathyrus hirsutus —
- Calico Aster Symphyotrichum lateriflorum 95
- California Poppy Eschscholzia californica —
- California Privet Ligustrum ovalifolium —
- Calliopsis; Plains Coreopsis; Golden Tickseed; Ojos De Gato; Golden Tick Seed Coreopsis tinctoria var. tinctoria 67
- Camphor Pluchea Pluchea camphorata 57
- Canada Bluegrass Poa compressa -30
- Canada Cocklebur Xanthium orientale 44
- Canada Frostweed Crocanthemum canadense 25
- Canada Horsebalm Collinsonia canadensis 29
- Canada Lettuce Lactuca canadensis 89
- Canada Lily Lilium canadense 46
- Canada Mayflower Maianthemum canadense 48
- Canada Moonseed Menispermum canadense 19
- Canada Rockcress Borodinia canadensis 25
- Canada Thistle Cirsium arvense -55
- Canada Toadflax Linaria canadensis 36
- Canada Violet Viola canadensis 78
- Canada Wild-ginger Asarum canadense 16
- Canada Wild-rye Elymus canadensis 48
- Canada Wood-nettle Laportea canadensis 28
- Canada Yew Taxus canadensis 36
- Canadian Anemone Anemonastrum canadense —
- Canadian Black-snakeroot Sanicula canadensis 15
- Canadian Bluet Houstonia canadensis 35
- Canadian Burnet Sanguisorba canadensis 20
- Canadian Clearweed Pilea pumila 23
- Canadian Honewort Cryptotaenia canadensis 18
- Canadian Lousewort Pedicularis canadensis 37
- Canadian Milkvetch Astragalus canadensis 73
- Canadian Rush Juncus canadensis 49
- Canadian Serviceberry Amelanchier canadensis 81
- Canadian St. John's-wort Hypericum canadense 69
- Canadian Waterweed Elodea canadensis 20
- Canby's Mountain-lover Paxistima canbyi 13
- Canteloupe Cucumis melo —
- Cape Gooseberry Physalis peruviana —
- Cardinal-flower Lobelia cardinalis 48
- Carey's Sedge Carex careyana 58
- Carolina Arrow Wood Viburnum carolinianum 85
- Carolina Bristle-mallow Modiola caroliniana —
- Carolina Buckthorn Frangula caroliniana 72
- Carolina Canary-grass Phalaris caroliniana —
- Carolina Coralbead Nephroia carolina 15
- Carolina Crane's-bill Geranium carolinianum 79
- Carolina Elephant's-foot Elephantopus carolinianus 48
- Carolina False-dandelion Pyrrhopappus carolinianus 46
- Carolina Fanwort Cabomba caroliniana 15
- Carolina Foxtail Alopecurus carolinianus 20
- Carolina Holly Ilex ambigua 97
- Carolina Horsenettle Solanum carolinense 73
- Carolina Laurel Cherry Prunus caroliniana —
- Carolina Leaf-flower Phyllanthus caroliniensis 13
- Carolina Mosquito-fern Azolla caroliniana 15
- Carolina Phlox Phlox carolina 52
- Carolina Rose Rosa carolina 76
- Carolina Sedge Carex caroliniana 58
- Carolina Spring-beauty Claytonia caroliniana 32
- Carolina Tassel-rue Trautvetteria caroliniensis 8
- Carolina Thistle Cirsium carolinianum 87
- Carolina Vetch Vicia caroliniana 77
- Carolina Wild-petunia Ruellia caroliniensis 31
- Carpet-bugle Ajuga reptans —
- Castor-bean Ricinus communis —
- Cat Greenbrier Smilax glauca 71
- Catawba Rhododendron Rhododendron catawbiense 97
- Catchfly Cutgrass Leersia lenticularis 32
- Catnip Nepeta cataria -30
- Cattail Sedge Carex typhina 58
- Cedar Glade Spike Rush Eleocharis bifida —
- Cedarglade Rock Pink Phemeranthus calcaricus —
- Celandine-poppy Stylophorum diphyllum 13
- Chaffweed Centunculus minimus 11
- Chain Speedwell Veronica catenata —
- Chamomile Matricaria chamomilla —
- Chapman's Bluegrass Poa chapmaniana 59
- Chapmans Meadow Parsnip Thaspium chapmanii —
- Chaste-tree Vitex agnus-castus —
- Cheat-grass Bromus tectorum -55
- Cheerful Sunflower Helianthus x laetiflorus —
- Cherokee Sedge Carex cherokeensis 58
- Cherry Silverberry Elaeagnus multiflora —
- Cherrybark Oak Quercus pagoda 88
- Chestnut Oak Quercus montana 88
- Chickasaw Plum Prunus angustifolia 100
- Chicory Cichorium intybus -30
- Chinese Boxthorn Lycium chinense —
- Chinese Chaste Tree Vitex negundo —
- Chinese Chestnut Castanea mollissima —
- Chinese Elm Ulmus parvifolia —
- Chinese Holly Ilex cornuta —
- Chinese Lantern Plant Alkekengi officinarum —
- Chinese Mustard Brassica juncea —
- Chinese Privet Ligustrum sinense -85
- Chinese Silver-grass Miscanthus sinensis -85
- Chinese Tallow-tree Triadica sebifera —
- Chinese Wisteria Wisteria sinensis -85
- Chinese Yam Dioscorea polystachya -85
- Chinquapin Oak Quercus muehlenbergii 88
- Choke Cherry Prunus virginiana 100
- Christmas Fern Polystichum acrostichoides 31
- Churchmouse Three-awn Aristida dichotoma 8
- Cinnamon Fern Osmundastrum cinnamomeum 31
- Clammy Ground-cherry Physalis heterophylla 74
- Clammy Hedge-hyssop Gratiola neglecta 8
- Clammy Locust Robinia viscosa 70
- Clasping Dogbane Apocynum sibiricum —
- Clasping Milkweed Asclepias amplexicaulis 66
- Clasping Pepperweed Lepidium perfoliatum —
- Clasping Venus's-looking-glass Triodanis perfoliata 22
- Cleavers Galium aparine 54
- Cliff Diamond Flower Houstonia rupestris —
- Climbing Dogbane Thyrsanthella difformis 22
- Climbing Hempweed Mikania scandens 46
- Climbing Milkvine Matelea obliqua 15
- Climbing Rose Rosa setigera 76
- Clingman's Hedge-nettle Stachys clingmanii 56
- Closed Bottle Gentian Gentiana andrewsii 29
- Clustered Beaksedge Rhynchospora glomerata 39
- Clustered Black-snakeroot Sanicula odorata 15
- Clustered Dock Rumex conglomeratus —
- Clustered Field Sedge; Freeway Sedge Carex praegracilis —
- Clustered Mille Graines Oldenlandia uniflora 13
- Clustered Mountain-mint Pycnanthemum muticum 45
- Coastal Plain Willow Salix caroliniana 99
- Coastal Plain Witchgrass Dichanthelium longiligulatum 49
- Coastal Sandspur Cenchrus spinifex 48
- Coastal Sweet-pepperbush Clethra alnifolia 52
- Coastal Virgin's-bower Clematis catesbyana 48
- Cockspur Hawthorn Crataegus crus-galli 89
- Colombian Watermeal Wolffia columbiana 11
- Colonial Bentgrass Agrostis capillaris —
- Colt's-foot Tussilago farfara -55
- Combleaf Yellow False Foxglove Aureolaria pectinata 44
- Combs Paspalum; Western Wheatgrass; Western Wheat Grass Pascopyrum smithii —
- Common Apple Malus domestica —
- Common Barley Hordeum vulgare —
- Common Barnyard-grass Echinochloa crusgalli -55
- Common Bird's-foot-trefoil Lotus corniculatus -30
- Common Bladderwort Utricularia macrorhiza 18
- Common Blue Cohosh Caulophyllum thalictroides 24
- Common Boneset Eupatorium perfoliatum 85
- Common Buckthorn Rhamnus cathartica -30
- Common Canary-grass Phalaris canariensis —
- Common Caraway Carum carvi —
- Common Chickweed Stellaria media -55
- Common Cinquefoil Potentilla simplex 71
- Common Clasping Aster Symphyotrichum patens var. patens 95
- Common Climbing Buckwheat Fallopia scandens 75
- Common Corncockle Agrostemma githago —
- Common Cup-plant Silphium perfoliatum 61
- Common Dandelion Taraxacum officinale —
- Common Dodder Cuscuta gronovii 43
- Common Duckweed Lemna minor 27
- Common Eastern Coneflower Rudbeckia acuminata —
- Common Elderberry Sambucus canadensis 75
- Common Elephant's-foot Elephantopus tomentosus 48
- Common Evening-primrose Oenothera biennis 80
- Common Fig Ficus carica —
- Common Flax Linum usitatissimum —
- Common Flowering-quince Chaenomeles speciosa —
- Common Golden-Alexanders Zizia aurea 50
- Common Grape-hyacinth Muscari botryoides —
- Common Greenbrier Smilax rotundifolia 71
- Common Ground-pine Dendrolycopodium obscurum 11
- Common Groundsel Senecio vulgaris —
- Common Hackberry Celtis occidentalis 65
- Common Hoptree Ptelea trifoliata 43
- Common Horehound Marrubium vulgare —
- Common Hornwort Ceratophyllum demersum 13
- Common Horseweed Erigeron canadensis 89
- Common Jack-in-the-pulpit Arisaema triphyllum 18
- Common Juniper Juniperus communis 59
- Common Mallow Malva neglecta —
- Common Milkweed Asclepias syriaca 70
- Common Morning-glory Ipomoea purpurea -30
- Common Motherwort Leonurus cardiaca —
- Common Mouse Ear Chickweed Cerastium fontanum ssp. vulgare —
- Common Mouse-ear Chickweed Cerastium fontanum —
- Common Mullein Verbascum thapsus -15
- Common Ninebark Physocarpus opulifolius 65
- Common Nipplewort Lapsana communis —
- Common Oat Avena sativa —
- Common Partridge Pea Chamaecrista fasciculata var. fasciculata 66
- Common Partridge-pea Chamaecrista fasciculata 66
- Common Pawpaw Asimina triloba 56
- Common Pear Pyrus communis —
- Common Pepperweed Lepidium densiflorum —
- Common Periwinkle Vinca minor -55
- Common Plantain Plantago major —
- Common Purslane Portulaca oleracea —
- Common Ragweed Ambrosia artemisiifolia 69
- Common Reed Phragmites australis —
- Common Rockcap Fern Polypodium virginianum 21
- Common Rose-pink Sabatia angularis 14
- Common Selfheal Prunella vulgaris —
- Common Sensitive Plant Chamaecrista nictitans var. nictitans 66
- Common Shepherd's Purse Capsella bursa-pastoris —
- Common Sneezeweed Helenium autumnale 71
- Common Snowberry Symphoricarpos albus 68
- Common Sowthistle Sonchus oleraceus —
- Common Speedwell Veronica officinalis —
- Common Spikerush Eleocharis palustris 34
- Common St. John's-wort Hypericum perforatum -15
- Common Sunflower Helianthus annuus —
- Common Sweet White Violet Viola incognita 78
- Common Tansy Tanacetum vulgare —
- Common Teasel Dipsacus fullonum -30
- Common Three Square Bulrush Schoenoplectus pungens 42
- Common Three Square Bulrush Schoenoplectus pungens var. pungens —
- Common Threeseed Mercury Acalypha rhomboidea 33
- Common Timothy Phleum pratense —
- Common Velvet-grass Holcus lanatus -30
- Common Viper's-bugloss Echium vulgare —
- Common Water-hyacinth Oshuna crassipes —
- Common Wild Quinine Parthenium integrifolium 72
- Common Windgrass; Loose Silkybent Grass; Windgrass; Common Wind Grass; Loose Silky Bent Grass; Wind Grass Apera spica-venti —
- Common Winterberry Ilex verticillata 97
- Common Woodrush Luzula multiflora 12
- Common Yellow Woodsorrel Oxalis stricta -30
- Common Yucca Yucca filamentosa 51
- Compact Dodder Cuscuta compacta 43
- Compass Plant Silphium laciniatum —
- Composite Dropseed Sporobolus compositus 31
- Composite Dropseed Sporobolus compositus var. compositus 31
- Cone-cup Spikerush Eleocharis tuberculosa 34
- Conyza canadensis Conyza canadensis 5
- Copper Iris Iris fulva 57
- Coppery St. John's-wort Hypericum denticulatum 69
- Coral Honeysuckle Lonicera sempervirens 72
- Coralberry Symphoricarpos orbiculatus 68
- Cork Elm Ulmus thomasii —
- Corn Zea mays —
- Corn Chamomile Anthemis arvensis —
- Corn Poppy Papaver rhoeas —
- Corn Speedwell Veronica arvensis —
- Corn-gromwell Buglossoides arvensis -15
- Cornel-leaf Aster Doellingeria infirma 77
- Cornflag Gladiolus communis —
- Cornflower Centaurea cyanus —
- Cow-parsnip Heracleum maximum 41
- Crack Willow; Brittle Willow Salix x fragilis —
- Cranefly Orchid Tipularia discolor 8
- Crawes Sedge Carex crawei —
- Cream Avens Geum virginianum 23
- Cream Tick-trefoil Desmodium ochroleucum 68
- Cream Wild Indigo Baptisia bracteata 76
- Creeping Aster Eurybia surculosa 70
- Creeping Bellflower Campanula rapunculoides —
- Creeping Bentgrass Agrostis stolonifera -55
- Creeping Burhead Echinodorus cordifolius 15
- Creeping Buttercup Ranunculus repens —
- Creeping Cucumber Melothria pendula 20
- Creeping Dayflower Commelina diffusa —
- Creeping Eryngo Eryngium prostratum 51
- Creeping Jacob's-ladder Polemonium reptans 34
- Creeping Lespedeza Lespedeza repens 70
- Creeping Love Grass Eragrostis reptans —
- Creeping Manna Grass Glyceria acutiflora —
- Creeping Mazus Mazus miquelii —
- Creeping Meadow Foxtail; Creeping Meadow Foxtail Grass; Creeping Meadow Fox Tail; Creeping Meadow Fox Tail Grass Alopecurus arundinaceus —
- Creeping Phlox Phlox stolonifera 52
- Creeping Spike Moss Lycopodioides apodum —
- Creeping St. John's-wort Hypericum adpressum 69
- Creeping Western Umbrella Sedge Fuirena simplex —
- Creeping Woodsorrel Oxalis corniculata —
- Creeping Yellowcress Rorippa sylvestris —
- Crested Anoda Anoda cristata —
- Crested Coralroot Hexalectris spicata 8
- Crested Fringed Orchid Platanthera cristata 27
- Crested Sedge Carex cristatella 58
- Crimson Clover Trifolium incarnatum —
- Crocus Crocus vernus —
- Crooked-stem Aster Symphyotrichum prenanthoides 95
- Crossleaf Milkwort Senega cruciata 29
- Crossvine Bignonia capreolata 40
- Crown-vetch Securigera varia -30
- Crowned Beggarticks Bidens trichosperma 86
- Cucumber Cucumis sativus —
- Cucumber Magnolia Magnolia acuminata 71
- Cultivated Garlic Allium sativum —
- Cultivated Rye Secale cereale —
- Cultivated Tobacco Nicotiana tabacum —
- Culver's-root Veronicastrum virginicum 36
- Cumberland Azalea Rhododendron cumberlandense 90
- Cumberland Rosemary Conradina verticillata —
- Cumberland Sand Reed Calamovilfa arcuata —
- Cumberland Sandwort Geocarpon cumberlandense —
- Cumberland Sedge Carex cumberlandensis 58
- Cupseed Calycocarpum lyonii —
- Curly Dock Rumex crispus —
- Curly Pondweed Potamogeton crispus -15
- Cursed Buttercup Ranunculus sceleratus 59
- Curtis's Goldenrod Solidago curtisii 93
- Curtiss's Milkwort Senega curtissii 29
- Curtiss's Three-awn Aristida curtissii 8
- Cusp Dodder Cuscuta cuspidata —
- Cutleaf Coneflower Rudbeckia laciniata 78
- Cutleaf Crane's-bill Geranium dissectum —
- Cutleaf Evening-primrose Oenothera laciniata 79
- Cutleaf Goldenrod Solidago arguta 93
- Cutleaf Grapefern Sceptridium dissectum 11
- Cutleaf Ground-cherry Physalis angulata 74
- Cutleaf Meadow-parsnip Thaspium pinnatifidum 29
- Cutleaf Teasel Dipsacus laciniatus —
- Cutleaf Toothwort Cardamine concatenata 51
- Cutleaf Water-milfoil Myriophyllum pinnatum 33
- Cylindric-fruit Seedbox Ludwigia glandulosa 53
- Cymose Beaksedge Rhynchospora recognita 39
- Cypress Spurge Euphorbia cyparissias —
- Cypress Witchgrass Dichanthelium dichotomum 49
- Cypress-knee Sedge Carex decomposita 58
- Cypress-swamp Sedge Carex joorii 58
- Cypress-vine Ipomoea quamoclit —
D
- Daffodil Narcissus pseudo —
- Dahurian Buckthorn Rhamnus davurica —
- Daisyleaf Moonwort Botrychium matricariifolium 11
- Dakota Vervain; Dakota Mock Vervain Glandularia bipinnatifida —
- Dallis-grass Paspalum dilatatum -30
- Dame's Rocket Hesperis matronalis -15
- Dark Indigo Bush Amorpha nitens —
- Dark-green Bulrush Scirpus atrovirens 42
- David's Spurge Euphorbia davidii —
- Davis Sedge Carex davisii —
- Deam's Three-seeded Mercury Acalypha deamii —
- Deer-tongue Witchgrass Dichanthelium clandestinum 49
- Deerberry Vaccinium stamineum 98
- Delta Arrowhead Sagittaria platyphylla 56
- Dense Blazing-star Liatris spicata 59
- Denseflower Knotweed Persicaria glabra —
- Densetuft Hairsedge Bulbostylis capillaris 8
- Deptford Pink Dianthus armeria —
- Desert Goosefoot Chenopodium pratericola 52
- Devil's Beggarticks Bidens frondosa 88
- Devil's-bit Chamaelirium luteum 8
- Devil's-trumpet Datura innoxia —
- Devil's-walkingstick Aralia spinosa 71
- Diamond Flower Houstonia nigricans var. nigricans —
- Diffuse Rush Juncus diffusissimus 49
- Dill Anethum graveolens —
- Ditch-stonecrop Penthorum sedoides 8
- Dixie Sedge Carex amplisquama 58
- Dog Rose Rosa canina —
- Dog-fennel Eupatorium capillifolium 81
- Dogmustard Erucastrum gallicum —
- Dogweed Dyssodia papposa —
- Dotted Duckmeat Landoltia punctata —
- Dotted Smartweed Persicaria punctata 76
- Doubtful Mouse Earl Chickweed Dichodon viscidum —
- Dove's-foot Crane's-bill Geranium molle —
- Downy Agrimony Agrimonia pubescens 40
- Downy Alumroot Heuchera pubescens 25
- Downy Arrowwood Viburnum rafinesqueanum 77
- Downy Carrion-flower Smilax pulverulenta 68
- Downy Cinquefoil Potentilla intermedia —
- Downy Goldenrod Solidago puberula 93
- Downy Ground-cherry Physalis pubescens 74
- Downy Hawthorn Crataegus mollis —
- Downy Lobelia Lobelia puberula 48
- Downy Maiden Fern; Downy Woodfern; Soft Fern; Downy Shield Fern; Downy Maidenfern; Downy Wood Fern; Softfern; Downy Shieldfern Christella dentata —
- Downy Phlox Phlox pilosa 54
- Downy Rattlesnake-plantain Goodyera pubescens 8
- Downy Serviceberry Amelanchier arborea 80
- Downy Woodmint Blephilia ciliata 21
- Downy Yellow False Foxglove Aureolaria virginica 44
- Drooping Sedge Carex prasina 58
- Drooping Trillium Trillium flexipes 24
- Drooping Woodreed Cinna latifolia 11
- Drug Fumitory Fumaria officinalis —
- Drummond's St. John's-wort Hypericum drummondii 69
- Drummonds Red Maple Acer rubrum var. drummondii —
- Dudley's Rush Juncus dudleyi 49
- Dutchman's Breeches Dicentra cucullaria 14
- Dwarf Anemone Anemone minima 28
- Dwarf Chinquapin Oak Quercus prinoides 88
- Dwarf Cinquefoil Potentilla canadensis 74
- Dwarf Crested Iris Iris cristata 58
- Dwarf Ginseng Panax trifoliatus —
- Dwarf Hackberry Celtis pumila 65
- Dwarf Horseweed Erigeron divaricatus —
- Dwarf Larkspur Delphinium tricorne 55
- Dwarf Plantain Plantago pusilla 70
- Dwarf Skullcap Scutellaria parvula 45
- Dwarf Snapdragon Chaenorhinum minus —
- Dwarf St. John's-wort Hypericum mutilum 69
- Dwarf Sundew Drosera brevifolia 12
- Dwarf Upland Willow Salix humilis var. tristis —
- Dwarf Violet Iris Iris verna 57
- Dwarf-burhead Helanthium tenellum 8
E
- Earleaf False Foxglove Agalinis auriculata —
- Early Azalea Rhododendron prinophyllum 90
- Early Bluegrass Poa cuspidata 59
- Early Buttercup Ranunculus fascicularis 62
- Early Goldenrod Solidago juncea 93
- Early Meadow-rue Thalictrum dioicum 51
- Early Saxifrage Micranthes virginiensis 24
- Early St. John's-wort Hypericum nudiflorum 72
- Early Wild-rye Elymus macgregorii 48
- Early Winter-cress Barbarea verna —
- Earlyleaf Brome Bromus latiglumis 46
- Earth Nut Pea Lathyrus tuberosus —
- Eastern Bastard Toadflax Comandra umbellata var. umbellata —
- Eastern Bee Balm Monarda bradburiana —
- Eastern Black Nightshade Solanum emulans 73
- Eastern Bloodleaf Iresine rhizomatosa 19
- Eastern Blue Eyed Mary Collinsia verna —
- Eastern Blue-eyed-grass Sisyrinchium atlanticum 16
- Eastern Bluestar Amsonia tabernaemontana 25
- Eastern Bottlebrush-grass Elymus hystrix 48
- Eastern Bracken Pteridium latiusculum 32
- Eastern Columbine Aquilegia canadensis 46
- Eastern Cottonwood Populus deltoides 67
- Eastern False-aloe Agave virginica 12
- Eastern Featherbells Stenanthium gramineum 13
- Eastern Flowering Spurge Euphorbia corollata 62
- Eastern Fox Sedge Carex triangularis —
- Eastern Gamagrass Tripsacum dactyloides 20
- Eastern Goat's-beard Aruncus dioicus 36
- Eastern Gray Beardtongue Penstemon canescens 73
- Eastern Hawthorn Crataegus macrosperma 85
- Eastern Hay-scented Fern Sitobolium punctilobulum 21
- Eastern Hemlock Tsuga canadensis 71
- Eastern Leatherwood Dirca palustris 24
- Eastern Milkpea Galactia regularis 70
- Eastern Narrowleaf Sedge Carex amphibola 58
- Eastern Needle Grass Piptochaetium avenaceum 26
- Eastern Prairie Marbleseed Lithospermum parviflorum —
- Eastern Prickly Pear Opuntia cespitosa —
- Eastern Prickly Pear Opuntia humifusa 69
- Eastern Purple Coneflower Echinacea purpurea 48
- Eastern Red Cedar Juniperus virginiana 59
- Eastern Redbud Cercis canadensis 73
- Eastern Rough Sedge Carex scabrata 58
- Eastern Shooting-star Primula meadia 32
- Eastern Silvery Aster Symphyotrichum concolor 95
- Eastern Smooth Beardtongue Penstemon laevigatus 75
- Eastern Star Sedge Carex radiata 58
- Eastern Straw Sedge Carex straminea 58
- Eastern Swamp Privet Forestiera acuminata —
- Eastern Teaberry Gaultheria procumbens 33
- Eastern Wahoo Euonymus atropurpureus 65
- Eastern White Pine Pinus strobus 74
- Eastern Woodland Sedge Carex blanda 58
- Eastern Yampah Perideridia americana —
- Ebony Spleenwort Asplenium platyneuron 15
- Eggerts Sunflower Helianthus eggertii 97
- Eggleaf Witchgrass Dichanthelium ovale 49
- Egyptian Mint (a hybrid) Mentha x rotundifolia —
- Elliott's Bentgrass Agrostis elliottiana 45
- Elliott's Rush Juncus elliottii 49
- Elliotts Bluestem Andropogon gyrans 51
- Elliptic Spike Rush Eleocharis elliptica —
- Elliptical Rushfoil Croton willdenowii 73
- Elmleaf Goldenrod Solidago ulmifolia 95
- Emmons Sedge Carex albicans var. emmonsii 58
- Emory's Sedge Carex emoryi 58
- Engelmann's Quillwort Isoetes engelmannii 11
- Englemann's Spikerush Eleocharis engelmannii 34
- English Daisy Bellis perennis —
- English Elm Ulmus minor —
- English Haw Thorn Crataegus monogyna —
- English Ivy Hedera helix -85
- English Plantain Plantago lanceolata —
- Entangled Hawthorn Crataegus intricata 85
- Entireleaf Yellow False Foxglove Aureolaria laevigata —
- Equisetum hyemale Equisetum hyemale —
- Erect Hedge-parsley Torilis japonica —
- Erect Knotweed Polygonum erectum 75
- Erect Snoutbean Rhynchosia tomentosa 35
- Eurasian Water-milfoil Myriophyllum spicatum —
- European Alder Alnus glutinosa —
- European Beech Fagus sylvatica —
- European Chickweed Cerastium pumilum —
- European Columbine Aquilegia vulgaris —
- European Cornsalad Valerianella locusta —
- European Field Pansy Viola arvensis —
- European Fly Honeysuckle Lonicera xylosteum —
- European Gooseberry Ribes uva-crispa —
- European Horsechestnut Aesculus hippocastanum —
- European Lily-of-the-valley Convallaria majalis —
- European Privet Ligustrum vulgare -55
- European Spindle Tree Euonymus europaeus —
- European Stickseed Lappula squarrosa —
- European Sweetflag Acorus calamus —
- European Waterclover Marsilea quadrifolia —
- European Woodland Strawberry Fragaria vesca 81
- Everlasting Pea Lathyrus latifolius —
F
- Fall Panicgrass Panicum dichotomiflorum 49
- Fall Phlox Phlox paniculata 52
- Fall Witchgrass Leptoloma cognatum —
- False Boneset Brickellia eupatorioides 27
- False Daisy Eclipta prostrata —
- False Garlic Nothoscordum bivalve 79
- False Goat's-beard Astilbe biternata 13
- False Hop Sedge Carex lupuliformis 58
- False Indigo-bush Amorpha fruticosa 77
- False Melic Schizachne purpurascens —
- False Nettle Boehmeria cylindrica 40
- False Rue-anemone Enemion biternatum 14
- False Solomon's-seal Maianthemum racemosum 50
- Feather Fingergrass Chloris virgata —
- Fen Orchid Liparis loeselii 8
- Fennel Foeniculum vulgare —
- Fernleaf Phacelia Phacelia bipinnatifida 52
- Fernleaf Yellow False Foxglove Aureolaria pedicularia 44
- Ferris Scouring Rush Equisetum ferrissii —
- Fescue Sedge Carex festucacea 58
- Feverfew Tanacetum parthenium —
- Fewflower Nutrush Scleria pauciflora 12
- Fewflower Tick-trefoil Hylodesmum pauciflorum 68
- Fibrous-root Sedge Carex communis 58
- Fiddle Dock Rumex pulcher —
- Field Bindweed Convolvulus arvensis -30
- Field Brome Bromus arvensis -30
- Field Chickweed Cerastium arvense —
- Field Dodder Cuscuta campestris 43
- Field Forget-me-not Myosotis arvensis —
- Field Garlic Allium oleraceum —
- Field Garlic Allium vineale -55
- Field Horsetail Equisetum arvense 13
- Field Milkwort Senega sanguinea 30
- Field Mint Mentha arvensis 65
- Field Paspalum Paspalum laeve 59
- Field Pennycress Thlaspi arvense —
- Field Pepperweed Lepidium campestre —
- Field Pumpkin Cucurbita pepo —
- Field Pussytoes Antennaria neglecta 23
- Field Sorrel Rumex acetosella -30
- Field Sowthistle Sonchus arvensis —
- Field Thistle Cirsium discolor 90
- Filmy Angelica Angelica triquinata 28
- Fimbristylis puberula Fimbristylis puberula 15
- Fire Pink Silene virginica 49
- Five Lobe St. Johnswort Hypericum lobocarpum 72
- Five-leaf Akebia Akebia quinata -55
- Five-stamen Chickweed Cerastium semidecandrum —
- Fiveangle Dodder Cuscuta pentagona 43
- Fivefinger Aralia; Fiveleaf Aralia; Fivefingered Aralia; Fiveleaved Aralia; Five Finger Aralia; Five Leaf Aralia; Five Fingered Aralia; Five Leaved Aralia Eleutherococcus sieboldianus —
- Fivehorn Smotherweed; Fivehorned Smotherweed; Five Horn Smotherweed; Five Horned Smotherweed; Fivehorn Smother Weed; Fivehorned Smother Weed; Five Horn Smother Weed; Five Horned Smother Weed Bassia hyssopifolia —
- Fivelobe Cucumber Cayaponia quinqueloba 8
- Flame Azalea Rhododendron calendulaceum 90
- Flat Pea Lathyrus sylvestris —
- Flat Spiked Sedge Carex planispicata 58
- Flat-stem Spikerush Eleocharis compressa 34
- Flattened Oatgrass Danthonia compressa 33
- Fleshy Hawthorn Crataegus succulenta 85
- Flexuous White-edge Sedge Carex flexuosa 58
- Floating Mannagrass Glyceria septentrionalis 36
- Floating Marsh-pennywort Hydrocotyle ranunculoides 45
- Floating Pondweed Potamogeton natans 36
- Floating Seedbox Ludwigia peploides —
- Floating Water Primrose Ludwigia peploides var. glabrescens —
- Floerkea; False Mermaid; False Mermaid Weed; False Mermaidweed Floerkea proserpinacoides —
- Florida Cottonweed Froelichia floridana 15
- Florida Mudmidget Wolffiella gladiata 8
- Florida Paspalum Paspalum floridanum 59
- Florida Pellitory Parietaria floridana 25
- Flower-of-an-hour Hibiscus trionum —
- Flowering Dogwood Cornus florida 100
- Fly-poison Amianthium muscitoxicum 8
- Forked Bluecurls Trichostema dichotomum 26
- Forked Rush Juncus dichotomus 49
- Forkleaf Toothwort Cardamine dissecta 51
- Four Flower Loosestrife Steironema quadriflorum 58
- Fourleaf Milkweed Asclepias quadrifolia 66
- Fowl Bluegrass Poa palustris 59
- Fowl Manna Grass Glyceria striata var. striata 36
- Fowl Mannagrass Glyceria striata 36
- Fox Grape Vitis labrusca 74
- Fox Sedge Carex vulpinoidea 58
- Foxglove Beardtongue Penstemon digitalis 73
- Foxtail Barley Hordeum jubatum —
- Foxtail Clubmoss Lycopodiella alopecuroides 11
- Foxtail Millet Setaria italica —
- Fragrant Bedstraw Galium triflorum 54
- Fragrant Flatsedge Cyperus odoratus 36
- Fragrant Rabbit-tobacco Pseudognaphalium obtusifolium 36
- Fragrant Sumac Rhus aromatica 81
- Fragrant Water-lily Nymphaea odorata 55
- Frank's Sedge Carex frankii 58
- Fraser Magnolia Magnolia fraseri 71
- Fraser's Loosestrife Lysimachia fraseri 58
- Frenchs Shooting Star Primula frenchii —
- Frightful Sedge Carex molestiformis 58
- Fringed Brome Bromus ciliatus 46
- Fringed Climbing Buckwheat Parogonum ciliinode 75
- Fringed Loosestrife Steironema ciliatum 58
- Fringed Nutrush Scleria ciliata 12
- Fringed Polygala Polygaloides paucifolia 29
- Fringed Quickweed Galinsoga quadriradiata —
- Fringed Sedge Carex crinita 58
- Fringed Willowherb Epilobium ciliatum 43
- Fringetree Chionanthus virginicus 43
- Frost Aster Symphyotrichum pilosum 95
- Frost Grape Vitis vulpina 74
- Frosted Hawthorn Crataegus pruinosa 85
- Fuzzy Pride-of-Rochester Deutzia scabra —
- Fuzzy Wuzzy Sedge Carex hirsutella 58
G
- Galax Galax urceolata 17
- Garden Asparagus Asparagus officinalis —
- Garden Balsam Impatiens balsamina —
- Garden Cosmos Cosmos bipinnatus —
- Garden Loosestrife; Garden Yellow Loosestrife; Garden Loose Strife; Garden Yellow Loose Strife Lysimachia vulgaris —
- Garden Pea Pisum sativum —
- Garden Petunia Petunia x atkinsiana —
- Garden Radish Raphanus sativus —
- Garden Sage Salvia officinalis —
- Garden Star-of-Bethlehem Ornithogalum umbellatum -30
- Garden Strawberry Fragaria x ananassa —
- Garden Tomato Solanum lycopersicum —
- Garden Vervain Glandularia x hybrida —
- Garden Vetch Vicia sativa —
- Garden Vetch Vicia sativa ssp. nigra —
- Garlic Mustard Alliaria petiolata -85
- Gattingers Agalinis Agalinis gattingeri —
- Gattingers Hawthorn Crataegus pruinosa var. gattingeri 85
- Gattingers Lobelia Lobelia gattingeri —
- Georgia Bulrush Scirpus georgianus 42
- German Iris Iris germanica —
- Giant Bur Reed Sparganium eurycarpum —
- Giant Cane Arundinaria gigantea 43
- Giant Goldenrod Solidago gigantea 93
- Giant Ironweed Vernonia gigantea 76
- Giant Knotweed Reynoutria sachalinensis —
- Giant Ragweed Ambrosia trifida 68
- Giant Reed Arundo donax —
- Giant Sedge Carex gigantea 58
- Giant Sunflower Helianthus giganteus 97
- Glade Blue Curls Trichostema brachiatum 25
- Glade Cleft Phlox Phlox bifida ssp. stellaria —
- Glade Orange Cone Flower Rudbeckia tenax —
- Glade St. Johnswort Hypericum dolabriforme —
- Glade Violet Viola egglestonii —
- Glandular Dodder; Peruvian Dodder Cuscuta obtusiflora —
- Glaucous Evening Primrose Oenothera tetragona 79
- Globe Beaksedge Rhynchospora globularis 39
- Globe Bladderpod Physaria globosa —
- Globe Flatsedge Cyperus echinatus 36
- Globular Prairie Cone Flower Ratibida pinnata —
- Glomerate Sedge Carex aggregata 58
- Glossy Buckthorn Frangula alnus —
- Goat Grass Aegilops cylindrica —
- Goat's-rue Tephrosia virginiana 46
- Golden Hop Clover Trifolium aureum —
- Golden Ragwort Packera aurea 83
- Golden Rain-tree Koelreuteria paniculata —
- Golden St. John's-wort Hypericum frondosum 72
- Golden Tickseed Coreopsis tinctoria 67
- Golden-club Orontium aquaticum 29
- Goldenfruit Sedge Carex aureolensis 58
- Goldenseal Hydrastis canadensis 8
- Goldie's Wood-fern Dryopteris goldieana 23
- Goldmoss Stonecrop Sedum acre —
- Goosefoot Cornsalad; Goose Foot Cornsalad; Goosefoot Corn Salad; Goose Foot Corn Salad Valerianella chenopodiifolia —
- Gooseneck Loosestrife Lysimachia clethroides —
- Gorge Goldenrod Solidago faucibus —
- Graceful Sedge Carex gracillima 58
- Grand Redstem Ammannia robusta —
- Grape Honeysuckle Lonicera reticulata —
- Grass-leaved Flat-top Goldenrod Euthamia graminifolia 97
- Grass-leaved Starwort Stellaria graminea —
- Grassleaf Rush Juncus marginatus 49
- Grasslike Fimbry Fimbristylis littoralis —
- Grasslike Fimbry Fimbristylis miliacea —
- Grassy Arrowhead Sagittaria graminea 56
- Gray Chickweed Cerastium brachypetalum —
- Gray Dogwood Cornus racemosa 97
- Gray Field-speedwell Veronica polita —
- Gray Goldenrod Solidago nemoralis 97
- Gray Ground-cherry Physalis grisea 74
- Gray Poplar Populus x canescens —
- Gray's Sedge Carex grayi 58
- Great Blue Lobelia Lobelia siphilitica 49
- Great Indian-plantain Arnoglossum reniforme 51
- Great Plains Flatsedge Cyperus lupulinus 36
- Great Plains Goldentop Euthamia gymnospermoides —
- Great Plains Ladies Tresses Spiranthes magnicamporum —
- Great Waterleaf Hydrophyllum appendiculatum 24
- Great Yellow Woodsorrel Oxalis grandis 57
- Greater Celandine Chelidonium majus —
- Greater Duckweed Spirodela polyrhiza 22
- Greater Marsh St. John's-wort Triadenum walteri 69
- Greater Marsh St. Johnswort Hypericum walteri 69
- Greater Straw Sedge Carex normalis 58
- Greater Tickseed Coreopsis major 67
- Greater Tickseed Coreopsis major var. rigida —
- Green Adder's-mouth Malaxis unifolia 8
- Green Antelopehorn Asclepias viridis —
- Green Arrow-arum Peltandra virginica 8
- Green Ash Fraxinus pennsylvanica 75
- Green Bristlegrass Setaria viridis -15
- Green Carpetweed Mollugo verticillata —
- Green Dragon Arisaema dracontium 18
- Green Field-speedwell Veronica agrestis —
- Green Hawthorn Crataegus viridis 85
- Green Milkweed Asclepias viridiflora 66
- Green-violet Cubelium concolor 15
- Greenish-white Sedge Carex albolutescens 58
- Greenstem Forsythia Forsythia viridissima —
- Grooved Yellow Flax Linum sulcatum 45
- Grotto Alumroot Heuchera missouriensis —
- Ground-ivy Glechoma hederacea -55
- Grove Bluegrass Poa alsodes 59
- Guelder-rose Viburnum Viburnum opulus —
- Guyandotte Beauty Synandra hispidula 8
H
- Hair-awn Muhly Muhlenbergia capillaris 27
- Hairy Angelica Angelica venenosa 28
- Hairy Beard Tongue Penstemon hirsutus —
- Hairy Bedstraw Galium pilosum 54
- Hairy Bittercress Cardamine hirsuta —
- Hairy Buttercup Ranunculus sardous —
- Hairy Cat's-ear Hypochaeris radicata —
- Hairy Crabgrass Digitaria sanguinalis —
- Hairy False Mallow Malvastrum hispidum —
- Hairy Forked Nailwort Paronychia fastigiata 8
- Hairy Four-o'clock Mirabilis albida 29
- Hairy Goldenrod Solidago hispida 93
- Hairy Goldenrod; Harriss Goldenrod; Shale Barren Goldenrod; Hairy Golden Rod; Harriss Golden Rod; Shale Barren Golden Rod Solidago harrisii —
- Hairy Hawkweed Hieracium longipilum —
- Hairy Heart Leaf Aster Symphyotrichum drummondii 95
- Hairy Jointgrass Arthraxon hispidus -55
- Hairy Lespedeza Lespedeza hirta 71
- Hairy Lettuce Lactuca hirsuta 89
- Hairy Lipfern Myriopteris lanosa 8
- Hairy Mock-orange Philadelphus hirsutus 37
- Hairy Nightshade Solanum sarrachoides —
- Hairy Phlox Phlox amoena 52
- Hairy Pinweed Lechea mucronata 13
- Hairy Seed Paspalum Paspalum pubiflorum var. glabrum 59
- Hairy Skullcap Scutellaria elliptica 45
- Hairy Small-leaf Tick-trefoil Desmodium ciliare 68
- Hairy Solomon's-seal Polygonatum pubescens 28
- Hairy Sunflower Helianthus hirsutus 97
- Hairy Sweet-cicely Osmorhiza claytonii 24
- Hairy Thoroughwort Eupatorium pubescens 81
- Hairy Vetch Vicia villosa —
- Hairy Wild Rye Elymus villosus var. arkansanus —
- Hairy Wild-petunia Ruellia humilis 31
- Hairy Woodland Brome Bromus pubescens 46
- Hairy Woodmint Blephilia hirsuta 20
- Hairy Woodrush Luzula acuminata 12
- Hairy Yellow Violet Viola pubescens var. pubescens 78
- Hairy-fruit Chervil Chaerophyllum tainturieri 8
- Hairy-jointed Meadow-parsnip Thaspium barbinode 29
- Hairyseed Crowngrass Paspalum pubiflorum 59
- Halberd-leaf Rosemallow Hibiscus laevis 77
- Halberd-leaf Tearthumb Persicaria arifolia 76
- Halberd-leaf Yellow Violet Viola hastata 78
- Harbinger-of-spring Erigenia bulbosa 16
- Hardstem Bulrush Schoenoplectus acutus 42
- Harper's Fimbry Fimbristylis perpusilla 15
- Harveys Buttercup Ranunculus harveyi —
- Hawkweed Oxtongue Picris hieracioides —
- Hay Sedge Carex argyrantha 58
- Hazel Alder Alnus serrulata 66
- Hazel Dodder Cuscuta coryli 43
- Heart Leaf Noseburn Tragia cordata —
- Heart Leaf Willow Salix eriocephala —
- Heartleaf Aster Symphyotrichum cordifolium 95
- Heartleaf Golden-Alexanders Zizia aptera 46
- Heartleaf Hedge-nettle Stachys cordata 56
- Heartleaf Nettle Urtica chamaedryoides 48
- Heartleaf Peppervine Ampelopsis cordata 57
- Heartleaf Skullcap Scutellaria ovata 45
- Heavenly Bamboo Nandina domestica —
- Heavy Sedge Carex gravida 58
- Hedge Bedstraw Galium mollugo —
- 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
- Heller's Witchgrass Dichanthelium oligosanthes var. oligosanthes 49
- Hemlock Water-parsnip Sium suave 23
- Henbit Lamium amplexicaule var. amplexicaule —
- Henbit Dead-nettle Lamium amplexicaule -30
- Herb Sophia Descurainia sophia —
- Heterotheca latifolia Heterotheca latifolia —
- High Mallow Malva sylvestris —
- Highland Doghobble Leucothoe fontanesiana 22
- Hill Hawthorn Crataegus collina 85
- Hillside Blueberry Vaccinium pallidum 98
- Himalayan Blackberry Rubus bifrons —
- Hirsute American Alumroot Heuchera hirsuticaulis —
- Hirsute Sedge Carex complanata 58
- Hitchcock's Sedge Carex hitchcockiana 58
- Hoary Alyssum Berteroa incana —
- Hoary Azalea Rhododendron canescens 90
- Hoary Cress Lepidium draba —
- Hoary Frostweed Crocanthemum bicknellii 25
- Hoary Mountain-mint Pycnanthemum incanum 45
- Hoary Puccoon Lithospermum canescens 43
- Hoary Skullcap Scutellaria incana 45
- Hoary Tick-trefoil Desmodium canescens 68
- Hoary Vervain Verbena stricta 77
- Hobblebush Viburnum lantanoides 77
- Hog Plum Prunus umbellata 100
- Hollow Joe-pye-weed Eutrochium fistulosum 83
- Hollyhock Alcea rosea —
- Honey Locust Gleditsia triacanthos 52
- Honeyvine Cynanchum laeve 35
- Hooded Arrowhead Sagittaria calycina 56
- Hooded Blue Violet Viola sororia 78
- Hooked Bristlegrass; Hooked Bristle Grass Setaria verticillata —
- Hooked Buttercup Ranunculus recurvatus 59
- Hop Sedge Carex lupulina 58
- Horned Pondweed Zannichellia palustris 12
- Hornleaf Riverweed Podostemum ceratophyllum 8
- Horseradish Armoracia rusticana —
- Horsetail Crowngrass Paspalum fluitans 59
- Hortulan Plum Prunus hortulana —
- Hound's-tongue Cynoglossum officinale —
- Howells Pussytoes Antennaria howellii 23
- Huger's Carrion-flower Smilax hugeri 68
- Humped Bladderwort Utricularia gibba 18
- Humulus lupulus Humulus lupulus —
- Hyacinth Hyacinthus orientalis —
- Hybrid Spleenwort Asplenium x ebenoides 15
- Hydrilla Hydrilla verticillata -85
- Hyssop Skullcap Scutellaria integrifolia 45
- Hyssopleaf Thoroughwort Eupatorium hyssopifolium 81
I
- Illinois Bundleflower Desmanthus illinoensis 25
- Illinois Pondweed Potamogeton illinoensis 36
- Illinois Wood Sorrel Oxalis illinoensis —
- Inchplant; Wandering Jew; Sebra Plant; Creeping Charlie; Wandering Dude Tradescantia zebrina —
- India Love Grass Eragrostis pilosa var. pilosa —
- India Lovegrass Eragrostis pilosa —
- Indian Blanket-flower Gaillardia pulchella —
- Indian Cucumber-root Medeola virginiana 8
- Indian Goose-grass Eleusine indica -55
- Indian Heliotrope Heliotropium indicum —
- Indian Pink Spigelia marilandica 8
- Indian Strawberry Duchesnea indica -30
- Indian Sweetclover Melilotus indicus —
- Indian-hemp Apocynum cannabinum 60
- Indian-pipe Monotropa uniflora 20
- Indian-tobacco Lobelia inflata 48
- Indiana Arrow Wood Viburnum deamii —
- Inflated Narrow Leaf Sedge Carex grisea 58
- Inland Muhly Muhlenbergia glabrifloris 27
- Inland Rush Juncus interior —
- Intermediate Wood-fern Dryopteris intermedia 23
- Interrupted Fern Claytosmunda claytoniana 31
- Italian Gladiolus Gladiolus italicus —
- Italian Rye Grass Lolium multiflorum -30
- Ivyleaf Morning-glory Ipomoea hederacea -30
- Ivyleaf Speedwell Veronica hederifolia —
J
- Jack In The Pulpit Arisaema quinatum 18
- Jagged Chickweed Holosteum umbellatum —
- James's Sedge Carex jamesii 59
- Japanese Barberry Berberis thunbergii -55
- Japanese Bristlegrass Setaria faberi -30
- Japanese Brome Bromus japonicus -30
- Japanese Chaff Flower Achyranthes japonica -85
- Japanese Climbing Fern Lygodium japonicum —
- Japanese Clover Kummerowia striata -30
- Japanese Holly Ilex crenata —
- Japanese Honeysuckle Lonicera japonica -85
- Japanese Hops Humulus japonicus -55
- Japanese Knotweed Reynoutria japonica -85
- Japanese Lawngrass Zoysia japonica —
- Japanese Mazus Mazus pumilus —
- Japanese Millet Echinochloa frumentacea —
- Japanese Spiraea Spiraea japonica -85
- Japanese Stilt-grass Microstegium vimineum -85
- Japanese Virgin's-bower Clematis terniflora -55
- Japanese Wisteria Wisteria floribunda -85
- Japanese Yew Taxus cuspidata —
- Japanese-rose Kerria japonica —
- Jerusalem Artichoke Helianthus tuberosus —
- Jerusalem-oak Dysphania botrys —
- Jimsonweed Datura stramonium —
- Jobs Tears Coix lacryma-jobi —
- Johnny Jump-up Viola tricolor —
- Johnson Grass Sorghum halepense -55
- Jointed Rush Juncus articulatus 49
- Jumpseed Persicaria virginiana 76
- Jungle-rice Echinochloa colonum —
- Juniper Sedge Carex juniperorum —
- Juniper-leaf Polypremum procumbens 16
K
- Keeled Bulrush Isolepis carinata 42
- Kenilworth Ivy Cymbalaria muralis —
- Kentucky Bluegrass Poa pratensis -30
- Kentucky Bluegrass; Junegrass; Speargrass; Kentucky Blue Grass; June Grass; Spear Grass; Jungrass; Jun Grass Poa pratensis ssp. pratensis —
- Kentucky Coffeetree Gymnocladus dioicus 29
- Kentucky Ladys Slipper Cypripedium kentuckiense —
- Kentucky Viburnum Viburnum molle —
- Kentucky Yellowwood Cladrastis kentukea 17
- Kidneyleaf Buttercup Ranunculus abortivus 61
- Kidneyleaf Grass-of-Parnassus Parnassia asarifolia 17
- Kidneyleaf Mud-plantain Heteranthera reniformis 12
- Kidneyleaf Twayblade Neottia smallii 8
- Knotgrass Paspalum distichum 59
- Korean Clover Kummerowia stipulacea -30
- Krals Sedge Carex kraliana 58
- Kudzu Pueraria montana -85
- Kudzu Pueraria montana var. lobata -85
L
- Lace Flower Ptilimnium nuttallii 24
- Lace Lovegrass Eragrostis capillaris 32
- Lake Cress Rorippa aquatica —
- Lambs Quarters Chenopodium album -30
- Lanceleaf Anemone Anemone lancifolia 28
- Lanceleaf Bluet Houstonia lanceolata 35
- Lanceleaf Figwort Scrophularia lanceolata 32
- Lanceleaf Frogfruit Phyla lanceolata 43
- Lanceleaf Loosestrife Steironema lanceolatum 58
- Lanceleaf Ragweed Ambrosia bidentata 68
- Lanceleaf Scurfpea Orbexilum onobrychis 32
- Lanceleaf Tickseed Coreopsis lanceolata 68
- Lanceleaf Wild Licorice Galium lanceolatum 54
- Large Flower Valerian Valeriana pauciflora —
- Large Leaf Wild Indigo Baptisia lactea —
- Large Spike Rush Eleocharis macrostachya —
- Large Spotted St. Johnswort Hypericum pseudomaculatum —
- Large Stem Alumroot Heuchera macrorhiza —
- Large Thymeleaf Sandwort Arenaria serpyllifolia -30
- Large Whorled Pogonia Isotria verticillata 8
- Large Witch-alder Fothergilla major 22
- Large Yellow Vetch Vicia grandiflora —
- Large-bracted Plantain Plantago aristata 70
- Large-flowered Barbara's-buttons Marshallia grandiflora 13
- Large-flowered Bellwort Uvularia grandiflora 22
- Large-flowered Trillium Trillium grandiflorum 25
- Largebract Tick-trefoil Desmodium cuspidatum 68
- Largeflower Tickseed Coreopsis grandiflora 67
- Largefruit Black-snakeroot Sanicula trifoliata 15
- Largeleaf Grass-of-Parnassus Parnassia grandifolia 17
- Largeleaf Phlox Phlox amplifolia 52
- Largeleaf Pondweed Potamogeton amplifolius 36
- Largeleaf Waterleaf Hydrophyllum macrophyllum 24
- Largeseed Forget-me-not Myosotis macrosperma 43
- Late Figwort Scrophularia marilandica 34
- Late Purple Aster Symphyotrichum patens 95
- Late-flowering Thoroughwort Eupatorium serotinum 85
- Lawn Marsh-pennywort Hydrocotyle sibthorpioides —
- Leafy Bulrush Scirpus polyphyllus 42
- Leafy Pondweed Potamogeton foliosus 36
- Least Trillium Trillium pusillum 24
- Leatherleaf Viburnum Viburnum rhytidophyllum —
- Leathery Rush Juncus coriaceus 49
- Leavenworth's Sedge Carex leavenworthii 58
- LeConte's Violet Viola affinis 78
- Lemon Balm Melissa officinalis —
- Lemon-yellow False Golden-aster Heterotheca camporum —
- Lentil Vetch Vicia tetrasperma —
- Leonard's Skullcap Scutellaria leonardii 45
- Lesqurs Bladderpod Paysonia lescurii —
- Lesser Balloon-vine Cardiospermum halicacabum -30
- Lesser Burdock Arctium minus -30
- Lesser Calamint Calamintha nepeta —
- Lesser Calamint Clinopodium calamintha —
- Lesser Chickweed Stellaria pallida —
- Lesser Duckweed Lemna aequinoctialis 27
- Lesser Ladies'-tresses Spiranthes ovalis 22
- Lesser Marsh St. Johnswort Hypericum tubulosum 69
- Lesser Purple Fringed Orchid Platanthera psycodes 27
- Lesser Rattlesnake-plantain Goodyera repens 8
- Lesser Snakeroot Ageratina aromatica 83
- Licorice Bedstraw Galium circaezans 54
- Lilac Syringa vulgaris —
- Limber Honeysuckle Lonicera dioica 72
- Lime Barren Sandwort; Lime Barren Stitchwort; Dixie Stitchwort; Dixie Sandwort Sabulina muscorum —
- Limestone Adders Tongue Ophioglossum engelmannii 8
- Limestone Bittercress Cardamine douglassii 51
- Limestone Carolina Lark Spur Delphinium carolinianum —
- Limestone Forest Sedge Carex superata 58
- Limestone Hedge Hyssop Gratiola quartermaniae —
- Limestone Meadow Sedge Carex granularis 58
- Limestone Quillwort Isoetes butleri —
- Linden Viburnum Viburnum dilatatum —
- Lindheimers Witch Grass Dichanthelium acuminatum var. lindheimeri 49
- Lined Sedge Carex striatula 58
- Lion's-foot Rattlesnake-root Nabalus serpentaria 46
- Lions Tail; Horehound Motherwort; Hore Hound Motherwort; Horehound Mother Wort; Hore Hound Mother Wort Chaiturus marrubiastrum —
- Little Barley Hordeum pusillum 46
- Little Bluestem Schizachyrium scoparium 51
- Little Bluestem Schizachyrium scoparium var. scoparium —
- Little Brown Jug Hexastylis arifolia 16
- 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 85
- Littleleaf Sensitive-briar Mimosa microphylla 57
- Littleseed False-flax Camelina microcarpa —
- Lizard's-tail Saururus cernuus 25
- Lobed Spleenwort Asplenium pinnatifidum 15
- Lobed Tickseed Coreopsis auriculata 67
- Loblolly Pine Pinus taeda 75
- Lombardy Poplar Populus nigra —
- Long Flower Alumroot Heuchera longiflora 25
- Long Flower Beeblossom Oenothera filiformis —
- Long Leaf Starwort Stellaria longifolia 65
- Long Stalk Aster Symphyotrichum dumosum var. dumosum 95
- Long-headed Poppy Papaver dubium —
- Long-leaved Panicgrass Coleataenia longifolia 49
- Long-sepal Beardtongue Penstemon calycosus 73
- Long-spurred Violet Viola rostrata 78
- Longbeak Arrowhead Sagittaria australis 56
- Longleaf Bluet Houstonia longifolia 35
- Longleaf Ground-cherry Physalis longifolia 74
- Longleaf Pondweed Potamogeton nodosus 36
- Longs Sedge Carex longii 58
- Longspike Fluffgrass Tridens strictus 31
- Longspine Sandbur Cenchrus longispinus 48
- Longstalk Crane's-bill Geranium columbinum —
- Longstalk Sedge Carex pedunculata 59
- Longstyle Sweet-cicely Osmorhiza longistylis 24
- Loomiss Mountain Mint Pycnanthemum loomisii 45
- Loose Milkwort Senega ambigua 29
- Looseflower Water-willow Justicia ovata 37
- Lopsided Rush Juncus secundus 49
- Louisiana Lettuce; Biannual Lettuce Lactuca ludoviciana —
- Louisiana Sedge Carex louisianica 58
- Louisiana Unicorn-plant Proboscidea louisiana 33
- Love Lies Bleeding Amaranthus caudatus —
- Low Cudweed Gnaphalium uliginosum —
- Low False Bindweed Calystegia spithamaea 32
- Low False Bindweed Convolvulus spithamaeus —
- Low Hop Clover Trifolium campestre —
- Low Spearwort Ranunculus pusillus 59
- Low Spikesedge Cyperus hortensis 36
- Low Spikesedge Kyllinga pumila 15
- Low St. John's-wort Hypericum stragulum 72
- Low Woodland Sedge Carex socialis 58
- Lowland Beard Tongue Penstemon alluviorum —
- Lowland Bladder Fern Cystopteris protrusa 8
- Lowland Loosestrife Steironema hybridum 58
- Lowland Rotala Rotala ramosior 15
- Lucy Brauns Rosinweed Silphium terebinthinaceum var. luciae-brauniae —
- Lucy Brauns White Snakeroot Ageratina luciae-brauniae —
- Lyreleaf Sage Salvia lyrata 55
M
- Mad-dog Skullcap Scutellaria lateriflora 45
- Madagascar Periwinkle Catharanthus roseus —
- Mahaleb Cherry Prunus mahaleb —
- Maidenhair Spleenwort Asplenium trichomanes 15
- Maidenhair Tree Ginkgo biloba —
- Malabar Sprangletop Leptochloa fusca —
- Maleberry Lyonia ligustrina 71
- Many-flowered Witchgrass Dichanthelium polyanthes 49
- Many-spike Flatsedge Cyperus polystachyos 36
- Manyflower Flatsedge Cyperus lancastriensis 36
- Manyfruit Seedbox; Manyfruit Primrose Willow; Manyfruited Seedbox; Manyfruited Primrose Willow; Many Fruit Seedbox; Many Fruit Primrose Willow; Many Fruited Seedbox; Many Fruited Primrose Willow; Manyfruit Seed Box; Manyfruit Prim Rose Willow; Manyfruited Seed Box; Manyfruited Prim Rose Willow; Many Fruit Seed Box; Many Fruit Prim Rose Willow; Many Fruited Seed Box; Many Fruited Prim Rose Willow Ludwigia polycarpa —
- Mapleleaf Goosefoot Chenopodiastrum simplex 52
- Mapleleaf Viburnum Viburnum acerifolium 77
- Marginal Wood-fern Dryopteris marginalis 23
- Marijuana Cannabis sativa —
- Maroon Carolina Milkvine Matelea carolinensis 15
- Marsh Blue Violet Viola cucullata 80
- Marsh Bristlegrass Setaria parviflora 40
- Marsh Dewflower Murdannia keisak —
- Marsh Fern Thelypteris palustris 35
- Marsh Flatsedge Cyperus pseudovegetus 36
- Marsh Ladies'-tresses Spiranthes odorata 22
- Marsh Mermaid-weed Proserpinaca palustris 8
- Marsh Pea Lathyrus palustris 71
- Marsh Seedbox Ludwigia palustris 53
- Marshcress; Austrian Yellowcress; Marsh Cress; Austrian Yellow Cress Rorippa austriaca —
- Marshpepper Smartweed Persicaria hydropiper —
- Marvel-of-Peru Mirabilis jalapa —
- Maryland Black-snakeroot Sanicula marilandica 17
- Maryland Butterfly-pea Clitoria mariana 32
- Maryland Golden-aster Chrysopsis mariana 73
- Maryland Meadow-beauty Rhexia mariana 40
- Maryland Milkwort Senega mariana 29
- Maryland Senna Senna marilandica 59
- Matrimony Vine Lycium barbarum —
- Matting Witch Grass Dichanthelium meridionale 49
- Matweed Amaranth Amaranthus blitoides —
- Mayapple Podophyllum peltatum 26
- Maypops Passiflora incarnata 56
- McCartney Rose Rosa bracteata —
- McCree's Milkpea Galactia volubilis 71
- Mead's Sedge Carex meadii 58
- Meadow Brome Bromus commutatus —
- Meadow Fescue Schedonorus pratensis -55
- Meadow Foxtail Alopecurus pratensis —
- Meadow Garlic Allium canadense 68
- Meadow Hawkweed Hieracium cespitosum —
- Meadow Phlox Phlox maculata 52
- Meadow Sage Salvia pratensis —
- Meadow Salsify Tragopogon pratensis —
- Meehan's Mint Meehania cordata 8
- Memorial Rose Rosa lucieae —
- Mercury Spurge Euphorbia mercurialina 59
- Mexican Ground-cherry Physalis philadelphica —
- Mexican Muhly Muhlenbergia mexicana 27
- Mexican Plum Prunus mexicana 100
- Mexican-tea Dysphania ambrosioides 52
- Miami-mist Phacelia purshii 52
- Michaux's Saxifrage Micranthes petiolaris 24
- Michauxs Glade Cress Leavenworthia uniflora —
- Michigan Lily Lilium michiganense —
- Midland Sedge Carex mesochorea 58
- Midwestern Evening-primrose Oenothera pilosella 79
- Midwestern Stiff Goldenrod Solidago rigida 97
- Mimosa Albizia julibrissin -85
- Minute Duckweed Lemna perpusilla 27
- Mississippi Buttercup Ranunculus laxicaulis 59
- Missouri Goldenrod Solidago missouriensis —
- Missouri Gooseberry Ribes missouriense —
- Missouri Ironweed Vernonia missurica —
- Missouri Rockcress Borodinia missouriensis 25
- Missouri Violet Viola missouriensis —
- Mock Bishopweed Ptilimnium capillaceum 24
- Mockernut Hickory Carya tomentosa 74
- Moneywort Lysimachia nummularia -55
- Morrow's Honeysuckle Lonicera morrowii -55
- Mosla Mosla dianthera -55
- Moss Phlox Phlox subulata 52
- Moth Mullein Verbascum blattaria —
- Mountain Andromeda Pieris floribunda 45
- Mountain Bellwort Uvularia puberula 22
- Mountain Bugbane Actaea podocarpa 25
- Mountain Camellia Stewartia ovata 29
- Mountain Golden-Alexanders Zizia trifoliata 46
- Mountain Heartleaf Hexastylis contracta 15
- Mountain Highbush Blueberry Vaccinium simulatum 98
- Mountain Holly Ilex montana 97
- Mountain Laurel Kalmia latifolia 81
- Mountain Maple Acer spicatum 86
- Mountain Meadow-rue Thalictrum clavatum 51
- Mountain Silverbell Halesia carolina 57
- Mountain Spleenwort Asplenium montanum 15
- Mountain Sweet-pepperbush Clethra acuminata 57
- Mountain Woodsorrel Oxalis montana 57
- Mouse-ear Cress Arabidopsis thaliana —
- Mucronate Sprangletop Dinebra panicea ssp. mucronata —
- Mudbank Crowngrass Paspalum dissectum 59
- Muehlenberg's Sedge Carex muehlenbergii 58
- Mugwort Artemisia vulgaris —
- Mulberry-weed Fatoua villosa -30
- Mullein Foxglove Dasistoma macrophyllum —
- Multiflora Rose Rosa multiflora -85
- Muscadine Muscadinia rotundifolia 75
- Musk Mallow Malva moschata —
- Musk Thistle Carduus nutans -15
- Muskingum River Sedge Carex muskingumensis —
N
- Naked Tick-trefoil Hylodesmum nudiflorum 68
- Narrow Leaf Cat Tail Typha angustifolia 52
- Narrow Leaf Cat Tail Typha angustifolia 52
- Narrow Leaf Orange Coneflower Rudbeckia truncata —
- Narrowleaf Bird's-foot-trefoil Lotus tenuis —
- Narrowleaf Bittercress Cardamine impatiens —
- Narrowleaf Blue-eyed-grass Sisyrinchium angustifolium 17
- Narrowleaf Bluecurls Trichostema setaceum 25
- Narrowleaf Bluet Houstonia tenuifolia 35
- Narrowleaf Cow-wheat Melampyrum lineare 8
- Narrowleaf Gladefern Homalosorus pycnocarpos —
- Narrowleaf Gumweed Grindelia lanceolata —
- Narrowleaf Meadowsweet Spiraea alba 70
- Narrowleaf Paleseed Leucospora multifida 8
- Narrowleaf Panic Grass Dichanthelium angustifolium 49
- Narrowleaf Pinweed Lechea tenuifolia 13
- Narrowleaf Ramps Allium burdickii 68
- Narrowleaf Rushfoil Croton michauxii 74
- Narrowleaf Showy Goldenrod Solidago rigidiuscula 93
- Narrowleaf Silkgrass Pityopsis graminifolia 74
- Narrowleaf Sundrops Oenothera fruticosa 82
- Narrowleaf Sunflower Helianthus angustifolius 97
- Narrowleaf Vervain Verbena simplex 77
- Narrowleaf Whitetop Aster Sericocarpus linifolius 48
- Navel Cornsalad Valerianella umbilicata 21
- Necklace Glade Cress Leavenworthia torulosa —
- Necklace Sedge Carex projecta 58
- Needle Spikerush Eleocharis acicularis 34
- Needleleaf Witchgrass Dichanthelium aciculare 49
- Needlepod Rush Juncus scirpoides 49
- Nerveless Woodland Sedge Carex leptonervia 58
- Nestronia Nestronia umbellula 10
- Netted Chain-fern Lorinseria areolata 25
- Nettleleaf Goosefoot Chenopodium murale —
- Nettleleaf Sage Salvia urticifolia 55
- New England Aster Symphyotrichum novae-angliae 95
- New Jersey Tea Ceanothus americanus 94
- New York Fern Amauropelta noveboracensis 35
- New York Ironweed Vernonia noveboracensis 76
- New Zealand Spinach Tetragonia tetragonoides —
- Night-flowering Catchfly Silene noctiflora —
- Nimblewill Muhlenbergia schreberi 27
- Nodding Beggarticks Bidens cernua 86
- Nodding Chickweed Cerastium nutans 45
- Nodding Evening Primrose Oenothera nutans 79
- Nodding Fescue Festuca subverticillata 40
- Nodding Ladies'-tresses Spiranthes cernua 22
- Nodding Onion Allium cernuum 68
- Nodding Rattlesnake-root Nabalus crepidineus 47
- Nodding Sedge Carex gynandra 58
- Nodding Spurge Euphorbia nutans 59
- Northern Barren-strawberry Waldsteinia fragarioides 20
- Northern Blazing-star Liatris scariosa 62
- Northern Blue Cohosh Caulophyllum giganteum 21
- Northern Bog Clubmoss Lycopodiella inundata 11
- Northern Bugleweed Lycopus uniflorus 30
- Northern Bush-honeysuckle Diervilla lonicera 36
- Northern Catalpa Catalpa speciosa 57
- Northern Common Goldenrod Solidago canadensis 93
- Northern Dewberry Rubus flagellaris 95
- Northern Evening-primrose Oenothera parviflora 79
- Northern Highbush Blueberry Vaccinium corymbosum 98
- Northern Maidenhair Fern Adiantum pedatum 15
- Northern Pearlwort Sagina procumbens —
- Northern Red Oak Quercus rubra 88
- Northern Riverbank Wild Rye; Wiegands Wildrye; Northern Riverbank Wildrye; Wiegands Wild Rye Elymus wiegandii —
- Northern Roughleaf Goldenrod Solidago patula 93
- Northern Spicebush Lindera benzoin 65
- Northern Spider-lily Hymenocallis occidentalis —
- Northern Swamp Buttercup; Marsh Buttercup; Bristly Buttercup; Northern Swamp Butter Cup; Marsh Butter Cup; Bristly Butter Cup Ranunculus caricetorum —
- Northern Toothache Tree Zanthoxylum americanum 65
- Northern Watermeal Wolffia borealis —
- Northern White Cedar Thuja occidentalis 56
- Northern Winged Loose Strife Lythrum alatum 65
- Northern Witchgrass Dichanthelium bicknellii 49
- Norway Maple Acer platanoides —
- Norway Spruce Picea abies —
- Nottoway Valley Brome Bromus nottowayanus 46
- Nuttall's Hedge-nettle Stachys nuttallii 56
- Nuttall's Lobelia Lobelia nuttallii 48
- Nuttall's Reedgrass Greeneochloa coarctata 27
- Nuttall's Tick-trefoil Desmodium nuttallii 68
- Nuttall's Waterweed Elodea nuttallii 20
O
- Oakleaf Hydrangea Hydrangea quercifolia 56
- Obedient-plant Physostegia virginiana 27
- Oblong-fruit Pinweed Lechea racemulosa 13
- Ocean Blue Phacelia Phacelia ranunculacea 52
- Ohio Buckeye Aesculus glabra —
- Ohio Spiderwort Tradescantia ohiensis 53
- Oklahoma Sedge Carex oklahomensis —
- Okra; Gumbo Abelmoschus esculentus —
- Old-pasture Bluegrass Poa saltuensis 59
- Old-witch Panicgrass Panicum capillare 49
- Oldfield Five Fingers; Oldfield Fivefingers; Old Field Five Fingers; Old Field Fivefingers; Creeping Cinquefoil; Creeping Five Fingers; Creeping Fivefingers Potentilla reptans —
- One Flower False Fiddleleaf Hydrolea uniflora —
- One Flower Flat Sedge Cyperus retroflexus —
- One-flowered Hawthorn Crataegus uniflora 85
- One-seed Bur-cucumber Sicyos angulatus 15
- Open-flower Witchgrass Dichanthelium laxiflorum 49
- Opium Poppy Papaver somniferum —
- Opposite-leaf Dwarf-dandelion Krigia cespitosa 25
- Orange Coneflower Rudbeckia fulgida 75
- Orange Cosmos Cosmos sulphureus —
- Orange Day-lily Hemerocallis fulva -55
- Orange-eye Butterfly-bush Buddleja davidii -55
- Orangefruit Horse-gentian Triosteum aurantiacum 25
- Orchard Grass Dactylis glomerata —
- Oriental Bittersweet Celastrus orbiculatus -85
- Oriental False Hawksbeard Youngia japonica —
- Oriental Lady's-thumb Persicaria longiseta -55
- Osage-orange Maclura pomifera 37
- Ouachita Mountain Sedge Carex ouachitana —
- Oval-leaf Sedge Carex cephalophora 58
- Ovate Leaf False Fiddleleaf Hydrolea ovata —
- Ovate Spike Rush Eleocharis ovata 34
- Overcup Oak Quercus lyrata 88
- Oxeye Daisy Leucanthemum vulgare -30
- Ozark Bluestar Amsonia illustris —
- Ozark Bunchflower Melanthium woodii 32
- Ozark Calamint Clinopodium glabellum —
- Ozark Crownbeard Verbesina helianthoides 82
- Ozark Dropseed Sporobolus ozarkanus 31
- Ozark Meadow Beauty Rhexia interior —
- Ozark Mock Orange Philadelphus pubescens —
P
- Pacific Snowberry Symphoricarpos albus var. albus 68
- Pagoda Dog Wood Cornus alternifolia 97
- Painted Buckeye Aesculus sylvatica 72
- Painted Sedge Carex picta —
- Painted Trillium Trillidium undulatum 25
- Pale Beardtongue Penstemon pallidus 73
- Pale Dock Rumex altissimus 53
- Pale False Mannagrass Torreyochloa pallida 36
- Pale Indian-plantain Arnoglossum atriplicifolium 52
- Pale Jewelweed Impatiens pallida 68
- Pale Leather Flower Clematis versicolor —
- Pale Purple Coneflower Echinacea pallida 47
- Pale Sedge Carex pallescens 58
- Pale Smartweed Persicaria lapathifolia 79
- Paleleaf Sunflower Helianthus strumosus 99
- Palespike Lobelia Lobelia spicata 49
- Palmer's Amaranth Amaranthus palmeri —
- Panicled Hydrangea Hydrangea paniculata —
- Panicled Tick-trefoil Desmodium paniculatum 68
- Paper Mulberry Broussonetia papyrifera —
- Parachute Sedge Carex rugosperma 58
- Parasol Sedge Carex umbellata 58
- Parlin's Pussytoes Antennaria parlinii 23
- Parrot-feather Myriophyllum aquaticum —
- Partridge-berry Mitchella repens 12
- Pasture Flatsedge Cyperus brevifolioides —
- Path Rush Juncus tenuis 49
- Patience Dock Rumex patientia —
- Peach Prunus persica —
- Peach Leaf Willow Salix amygdaloides —
- Peanut Arachis hypogaea —
- Pear Hawthorn Crataegus calpodendron 85
- Pecan Carya illinoinensis 74
- Pennsylvania Bittercress Cardamine pensylvanica 51
- Pennsylvania Blackberry Rubus pensilvanicus 95
- Pennsylvania Ground-pine Dendrolycopodium hickeyi 11
- Pennsylvania Pellitory Parietaria pensylvanica 25
- Pennsylvania Sedge Carex pensylvanica 58
- Pennsylvania Smartweed Persicaria pensylvanica 76
- Peppermint Mentha x piperita var. piperita —
- Peppermint (a hybrid) Mentha x piperita —
- Peppervine Nekemias arborea 65
- Perennial Ryegrass Lolium perenne —
- Perfoliate Bellwort Uvularia perfoliata 23
- Perfoliate Horse-gentian Triosteum perfoliatum 25
- Perfoliate Pennycress Noccaea perfoliata -30
- Perplexed Tick-trefoil Desmodium perplexum 68
- Persimmon Diospyros virginiana var. virginiana —
- Petty Spurge Euphorbia peplus —
- Philadelphia Fleabane Erigeron philadelphicus 91
- Philadelphia Panic Grass Panicum philadelphicum 49
- Philippine Lily Lilium philippinense —
- Phyla nodiflora Phyla nodiflora 40
- Phyla nodiflora Phyla nodiflora 40
- Pickerel Weed Pontederia cordata var. cordata 59
- Pickerelweed Pontederia cordata 59
- Piedmont Bedstraw Galium pedemontanum -55
- Piedmont Foamflower Tiarella cordifolia 17
- Piedmont Rhododendron Rhododendron minus 90
- Pignut Hickory Carya glabra 74
- Pin Oak Quercus palustris 88
- Pine-barren Flatsedge Cyperus retrorsus 37
- Pineapple-weed Matricaria discoidea —
- Pineland Threeseed Mercury Acalypha ostryifolia 33
- Pineweed Hypericum gentianoides 69
- Piney woods dropseed Sporobolus michauxianus —
- Pink Azalea Rhododendron periclymenoides 90
- Pink Evening-primrose Oenothera speciosa —
- Pink Fuzzy-bean Strophostyles umbellata 55
- Pink Lady's-slipper Cypripedium acaule 28
- Pink Milkwort Senega incarnata 29
- Pink Purslane Portulaca pilosa 66
- Pink Queen Cleome hassleriana —
- Pink Queen Tarenaya hassleriana —
- Pink Thoroughwort Fleischmannia incarnata 81
- Pipevine Isotrema macrophyllum 20
- Pitch Pine Pinus rigida 74
- Pitchers Leather Flower Clematis pitcheri —
- Pitchers Stitchwort Sabulina patula —
- Pitseeded Goosefoot Chenopodium berlandieri 52
- Plain Gentian Gentiana alba 29
- Plains Lovegrass Eragrostis intermedia 32
- Plains Muhly Muhlenbergia cuspidata —
- Plains Wild Indigo Baptisia leucophaea var. leucophaea —
- Plains Wild Indigo; Long Bract Wild Indigo Baptisia leucophaea —
- Planer-tree Planera aquatica 23
- Plantain-leaf Pussytoes Antennaria plantaginifolia 26
- Plantainleaf Sedge Carex plantaginea 59
- Pleatleaf Knotweed Polygonum tenue 75
- Plume-poppy Macleaya cordata —
- Plumleaf Crabapple Malus prunifolia —
- Poet's Narcissus Narcissus poeticus —
- Pointed Broom Sedge Carex scoparia 58
- Pointedleaf Tick-trefoil Hylodesmum glutinosum 68
- Poison Sumac Toxicodendron vernix 87
- Poison-hemlock Conium maculatum -30
- Poison-ivy Toxicodendron radicans 81
- Poke Milkweed Asclepias exaltata 66
- Poorjoe Hexasepalum teres 36
- Poorland Flatsedge Cyperus compressus 36
- Porcelain-berry Ampelopsis glandulosa -85
- Porter's Reedgrass Calamagrostis porteri 28
- Possumhaw Holly Ilex decidua 97
- Possumhaw Viburnum Viburnum nudum 85
- Post Oak Quercus stellata 88
- Potato Dwarf-dandelion Krigia dandelion 25
- Poverty Brome Bromus sterilis —
- Poverty Dropseed Sporobolus vaginiflorus 31
- Poverty Oatgrass Danthonia spicata 33
- Poverty Rush Juncus anthelatus 49
- Powdery Thalia Thalia dealbata 26
- Prairie Broomweed Amphiachyris dracunculoides —
- Prairie Cordgrass Spartina pectinata 37
- Prairie Dock Silphium terebinthinaceum 60
- Prairie Dropseed Sporobolus heterolepis 31
- Prairie Fleabane Erigeron strigosus 87
- Prairie Junegrass; Prairie Jungrass; Prairie June Grass; Prairie Jun Grass Koeleria macrantha —
- Prairie Parsley Polytaenia nuttallii —
- Prairie Red Root Ceanothus herbaceus —
- Prairie Sunflower Helianthus petiolaris 97
- Prairie Three-awn Aristida oligantha 8
- Prairie Trillium Trillium recurvatum 24
- Prairie Wedgescale Sphenopholis obtusata 8
- Prairie-tea Croton Croton monanthogynus 74
- Pretty Sedge Carex woodii 58
- Price's Yellow Woodsorrel Oxalis macrantha 57
- Prices Aster Symphyotrichum kentuckiense —
- Prices Potato Bean Apios priceana —
- Prickly Bog Sedge Carex atlantica 58
- Prickly Bog Sedge Carex howei 58
- Prickly Fanpetals Sida spinosa —
- Prickly Gooseberry Ribes cynosbati 76
- Prickly Lettuce Lactuca serriola —
- Prickly Sowthistle Sonchus asper —
- Primrose-leaf Violet Viola primulifolia 78
- Prince's-feather Persicaria orientalis —
- Princess-tree Paulownia tomentosa -85
- Proso Millet Panicum miliaceum —
- Prostrate Blue Violet Viola walteri 78
- Prostrate Knotweed Polygonum aviculare —
- Prostrate Spurge Euphorbia prostrata —
- Prostrate Tick-trefoil Desmodium rotundifolium 68
- Prune-fruit Sedge Carex corrugata 58
- Pubescent Sedge Carex hirtifolia —
- Puff Sheath Dropseed Sporobolus neglectus —
- Pumpkin Ash Fraxinus profunda 75
- Puncture-vine Tribulus terrestris —
- Purple Bedstraw Galium latifolium 54
- Purple Burgamot Monarda media 71
- Purple Chokeberry Aronia x prunifolia 89
- Purple Dead-nettle Lamium purpureum -30
- Purple False Foxglove Agalinis purpurea 54
- Purple Fringeless Orchid Platanthera peramoena 27
- Purple Giant-hyssop Agastache scrophulariifolia 35
- Purple Loosestrife Lythrum salicaria -55
- Purple Lovegrass Eragrostis spectabilis 32
- Purple Meadowrue Thalictrum dasycarpum —
- Purple Milkweed Asclepias purpurascens 69
- Purple Nutsedge Cyperus rotundus —
- Purple Poppy Mallow; Purple Poppymallow Callirhoe involucrata —
- Purple Prairie Clover Dalea purpurea —
- Purple Rocket Iodanthus pinnatifidus —
- Purple Sandgrass Triplasis purpurea 12
- Purple Sedge Carex purpurifera 58
- Purple Twayblade Liparis liliifolia 8
- Purple-flowering Raspberry Rubus odoratus 98
- Purple-osier Willow Salix purpurea —
- Purple-stem Angelica Angelica atropurpurea 28
- Purple-stem Cliffbrake Pellaea atropurpurea 8
- Purpledisk Sunflower Helianthus atrorubens 97
- Purplehead Sneezeweed Helenium flexuosum 67
- Purpleleaf Willowherb Epilobium coloratum 43
- Purplestem Aster Symphyotrichum puniceum 95
- Purplestem Beggarticks Bidens connata 86
- Purslane Speedwell Veronica peregrina —
- Pussy Willow Salix discolor 99
- Puttyroot Aplectrum hyemale 8
Q
- Quackgrass Elymus repens -30
- Queen-Anne's-Lace Daucus carota -30
- Quill Fameflower Phemeranthus teretifolius 15
- Quill Sedge Carex tenera 58
R
- Rabbitfoot Clover Trifolium arvense —
- Racemed Milkwort Senega polygama 29
- Rafinesque's Seedbox Ludwigia hirtella 53
- Ragged Fringed Orchid Platanthera lacera 27
- Rapeseed Brassica napus —
- Rat's-tail Fescue Vulpia myuros —
- Rattlesnake Fern Botrypus virginianus 11
- Rattlesnake Hawkweed Hieracium venosum 46
- Rattlesnake-master Eryngium yuccifolium 55
- Ravenel's Witchgrass Dichanthelium ravenelii 49
- Ravenfoot Sedge Carex crus-corvi 58
- Red Amaranth Amaranthus cruentus —
- Red Buckeye Aesculus pavia 72
- Red Chokeberry Aronia arbutifolia 89
- Red Clover Trifolium pratense —
- Red Currant Ribes rubrum —
- Red Elderberry Sambucus racemosa var. pubens 73
- Red Fescue Festuca rubra 40
- Red Flax ;Flowering Flax Linum grandiflorum —
- Red Grape Vitis palmata —
- Red Hawthorn Crataegus iracunda 85
- Red Hickory Carya ovalis 74
- Red Maple Acer rubrum 86
- Red Morning-glory Ipomoea coccinea —
- Red Mulberry Morus rubra 47
- Red Osier dogwood Cornus stolonifera —
- Red Osier Dogwood Cornus sericea —
- Red Ramps Allium tricoccum 68
- Red Seed Plantain Plantago rhodosperma —
- Red Sprangletop Dinebra panicea ssp. brachiata —
- Red Trillium Trillium erectum 25
- Red Turtlehead Chelone obliqua 33
- Red Whiskered Clammy Weed Polanisia dodecandra ssp. dodecandra —
- Red Whiskered Clammy Weed Polanisia dodecandra —
- Red-seeded Dandelion Taraxacum erythrospermum —
- Redroot Amaranth Amaranthus retroflexus 68
- Redroot Flatsedge Cyperus erythrorhizos 36
- Redstem Stork's-bill Erodium cicutarium —
- Redtop Bentgrass Agrostis gigantea —
- Redtop Panicgrass Coleataenia rigidula 49
- Reed Canary-grass Phalaris arundinacea —
- Reflexed Flatsedge Cyperus refractus 36
- Reflexed Sedge Carex retroflexa 58
- Relxed Wild Ginger Asarum reflexum 15
- Rescue Grass Bromus catharticus -30
- Reverchons Hawthorn Crataegus reverchonii —
- Rezniceks Sedge Carex reznicekii 58
- Rhamnus lanceolata Rhamnus lanceolata —
- Ribbed Bishopweed Ptilimnium costatum 24
- Ribbed Sedge Carex virescens 58
- Rice Cutgrass Leersia oryzoides 32
- Ricefield Flatsedge Cyperus iria —
- Rich-woods Sedge Carex oligocarpa 59
- Ridged Yellow Flax Linum striatum 45
- Rigid Sedge Carex tetanica 58
- Ringed Witchgrass Dichanthelium annulum 49
- Ringseed Rush Juncus filipendulus —
- River Birch Betula nigra 74
- River Bulrush Bolboschoenus fluviatilis —
- River Oats Chasmanthium latifolium 36
- Riverbank Grape Vitis riparia 74
- Riverbank Wild-rye Elymus riparius 48
- Roadside Agrimony Agrimonia striata 40
- Roadside Pennycress Mummenhoffia alliacea -55
- Roan Mountain Goldenrod Solidago roanensis 93
- Roan Mountain Sedge Carex roanensis 58
- Robin's-plantain Erigeron pulchellus 88
- Robust Canada Wild Rye Elymus canadensis var. robustus 48
- Rock Buttercup Ranunculus micranthus 59
- Rock Firmoss Huperzia porophila 11
- Rock Goldenrod Solidago rupestris —
- Rock Harlequin Capnoides sempervirens 16
- Rock House Meadow Rue Thalictrum mirabile —
- Rock Muhly Muhlenbergia sobolifera 27
- Rock Skullcap Scutellaria saxatilis 45
- Rockcastle Wood Aster Eurybia saxicastellii —
- Rocket Larkspur Delphinium ajacis —
- Rope Dodder Cuscuta glomerata —
- Rose Pogonia Pogonia ophioglossoides 8
- Rose Vervain Glandularia canadensis 77
- Rose-of-Sharon Hibiscus syriacus —
- Rosebay Rhododendron Rhododendron maximum 97
- Rosinweed Sunflower Helianthus silphioides —
- Rosy Sedge Carex rosea 58
- Rosy Twisted-stalk Streptopus lanceolatus 11
- Rough American Barnyard Grass Echinochloa muricata var. muricata —
- Rough Avens Geum laciniatum 23
- Rough Bedstraw Galium asprellum 54
- Rough Bent Grass Agrostis scabra 45
- Rough Blazing-star Liatris aspera 59
- Rough Bluegrass Poa trivialis —
- Rough Boneset Eupatorium pilosum 81
- Rough Cinquefoil Potentilla norvegica 71
- Rough Dropseed Sporobolus clandestinus 31
- Rough False Pennyroyal Hedeoma hispida 23
- Rough Flatsedge Cyperus retrofractus 36
- Rough Hawkweed Hieracium scabrum 46
- Rough Leaf Dogwood Cornus drummondii —
- Rough Rattlesnake Root Nabalus asper —
- Rough Seed Bulrush Schoenoplectiella mucronata —
- Rough-fruit Amaranth Amaranthus tuberculatus —
- Round Leaf Fire Pink Silene rotundifolia —
- Round-lobed Hepatica Hepatica americana 17
- Roundfruit Hedge-hyssop Gratiola virginiana 8
- Roundhead Lespedeza Lespedeza capitata 70
- Roundhead Rush Juncus validus 49
- Roundleaf Mud Plantain; Roundleaf Mudplantain; Roundleaved Mud Plantain; Roundleaved Mudplantain; Round Leaf Mud Plantain; Round Leaf Mudplantain; Round Leaved Mud Plantain; Round Leaved Mudplantain Heteranthera rotundifolia —
- Roundleaf Ragwort Packera obovata 81
- Roundleaf Thoroughwax Bupleurum rotundifolium —
- Roundleaf Thoroughwort Eupatorium rotundifolium 81
- Roundleaf Water-hyssop Bacopa rotundifolia 35
- Roundleaf Yellow Violet Viola rotundifolia 79
- Roundseed Witchgrass Dichanthelium sphaerocarpon 49
- Royal Fern Osmunda spectabilis 31
- Rue Anemone Thalictrum thalictroides 51
- Rufous Bulrush Scirpus pendulus 42
- Running Buffalo Clover Trifolium stoloniferum —
- Running Clubmoss Lycopodium clavatum 11
- Running Serviceberry Amelanchier spicata 76
- Running Strawberry-bush Euonymus obovatus 56
- Russian Olive Elaeagnus angustifolia -55
- Russian Thistle Salsola tragus —
- Rusty Blackhaw Viburnum rufidulum 85
- Rydbergs Blazing Star Liatris hirsuta —
- Rye Brome Bromus secalinus —
S
- S Curve Three Awn Aristida ramosissima —
- Sacred Lotus Nelumbo nucifera —
- Sacred Thorn Apple Datura metel —
- Sago Pondweed Stuckenia pectinata 36
- Salix exigua Salix exigua —
- Sallow Sedge Carex lurida 58
- Saltmarsh Sandspurry Spergularia marina 8
- Sand Bittercress Cardamine parviflora 51
- Sand Blackberry Rubus caesius —
- Sand Dropseed Sporobolus cryptandrus 31
- Sand Grape Vitis rupestris —
- Sand Hickory Carya pallida 74
- Sand Love Grass Eragrostis trichodes —
- Sandbar Lovegrass Eragrostis frankii 32
- Sandhill Amaranth Amaranthus arenicola —
- Sassafras Sassafras albidum 71
- Saw Greenbrier Smilax bona-nox 71
- Sawtooth Blackberry Rubus argutus 95
- Sawtooth Oak Quercus acutissima —
- Sawtooth Sunflower Helianthus grosseserratus 97
- Scaly Blazing-star Liatris squarrosa 59
- Scarlet Beebalm Monarda didyma 71
- Scarlet Gaura; Scarlet Beeblossom; Scarlet Bee Blossom Oenothera suffrutescens —
- Scarlet Hawthorn Crataegus coccinea 89
- Scarlet Indian-paintbrush Castilleja coccinea 43
- Scarlet Oak Quercus coccinea 88
- Scarlet Pimpernel Anagallis arvensis —
- Scarlet Toothcup Ammannia coccinea 21
- Scentless Mock-orange Philadelphus inodorus 37
- Schrebers Wood Aster Eurybia schreberi —
- Schweinitzs Flat Sedge; Sand Flat Sedge Cyperus schweinitzii —
- Scotch Broom Cytisus scoparius —
- Scribners Rosettegrass Dichanthelium oligosanthes var. scribnerianum 49
- Scrufy Psoralea; Slimflower Scurfpea Psoralidium tenuiflorum —
- Sea Daffodil Pancratium maritimum —
- Seaside Brookweed Samolus parviflorus 13
- Seep Orange Coneflower Rudbeckia palustris —
- Seepage Starwort Sabulina fontinalis —
- Seneca Snakeroot Senega officinalis 29
- Sensitive Fern Onoclea sensibilis 26
- Sensitive Partridge-pea Chamaecrista nictitans 67
- September Elm Ulmus serotina 76
- Sericea Lespedeza Lespedeza cuneata -85
- Sessile Fruit Arrowhead Sagittaria rigida —
- Sessile Trillium Trillium sessile 25
- Sessile-leaf Bellwort Uvularia sessilifolia 22
- Sessileleaf Tick-trefoil Desmodium sessilifolium 68
- Shagbark Hickory Carya ovata 74
- Shaggy Hedge-hyssop Sophronanthe pilosa 8
- Sharp-lobed Hepatica Hepatica acutiloba 18
- Sharp-scale Sedge Carex oxylepis 58
- Sharpleaf Cancerwort Kickxia elatine —
- Sharpleaf St. John's-wort Hypericum virgatum 69
- Sharpscale Bulrush; Halls Bulrush Schoenoplectiella hallii —
- Sharpwing Monkey-flower Mimulus alatus 40
- Shaved Sedge Carex tonsa 58
- Shellbark Hickory Carya laciniosa 74
- Shingle Oak Quercus imbricaria 88
- Shining Bedstraw Galium concinnum —
- Shining Clubmoss Huperzia lucidula 11
- Shining Ladies'-tresses Spiranthes lucida 22
- Shiny Wedgescale Sphenopholis nitida 8
- Shoreline Sedge Carex hyalinolepis 58
- Short Beak Arrowhead Sagittaria brevirostra —
- Short Branched Brome Bromus erectus —
- Short Sepal Beard Tongue Penstemon brevisepalus —
- Short Stemmed Iris Iris brevicaulis —
- Short-bristle Horned Beaksedge Rhynchospora corniculata 39
- Short's Aster Symphyotrichum shortii 95
- Short's Hedge-hyssop Gratiola viscidula 8
- Shortbeak Sedge Carex brevior 58
- Shortleaf Pine Pinus echinata 74
- Shortleaf Skeleton-grass Gymnopogon brevifolius 8
- Shorts Sedge Carex shortiana —
- Shortstalk Chickweed Cerastium brachypodum 43
- Shortstalk False Bindweed Calystegia silvatica —
- Showy Gentian Gentiana decora 29
- Showy Goldenrod Solidago speciosa 96
- Showy Goldenrod; Noble Goldenrod; Shorts Goldenrod; Showy Golden Rod; Noble Golden Rod; Shorts Golden Rod Solidago shortii —
- Showy Honeysuckle (a hybrid) Lonicera x bella —
- Showy Orange Coneflower Rudbeckia speciosa —
- Showy Orchis Galearis spectabilis 14
- Showy Rattlebox Crotalaria spectabilis —
- Showy Skullcap Scutellaria serrata 45
- Showy Tick Trefoil Desmodium canadense 68
- Shrubby St. John's-wort Hypericum prolificum 72
- Shumard Oak Quercus shumardii 88
- Siberian Crabapple Malus baccata —
- Siberian Elm Ulmus pumila -15
- Siberian Squill Scilla siberica —
- Sickle Spurge Euphorbia falcata —
- Sicklepod Senna obtusifolia —
- Sidebeak Pencil-flower Stylosanthes biflora 28
- Sideoats Grama Bouteloua curtipendula 24
- Siebolds Viburnum Viburnum sieboldii —
- Silky Dogwood Cornus amomum 97
- Silky Dogwood Cornus obliqua —
- Silky Oatgrass Danthonia sericea 33
- Silky Wild-rye Elymus villosus 48
- Silky Willow Salix sericea 99
- Silver Birch Betula pendula —
- Silver Maple Acer saccharinum 86
- Silver Plumegrass Erianthus alopecuroides 37
- Silverleaf Nightshade Solanum elaeagnifolium —
- Silvery Cockscomb Celosia argentea —
- Silvery Cudweed Gamochaeta argyrinea 35
- Silvery Nailwort Paronychia argyrocoma 8
- Silvery Spleenwort Deparia acrostichoides 19
- Singlehead Pussytoes Antennaria solitaria 23
- Six Weeks Fescue Vulpia octoflora —
- Sleepy Catchfly Silene antirrhina 49
- Slender Spikegrass Chasmanthium laxum 36
- Slender Beaksedge Rhynchospora gracilenta 39
- Slender Blue Iris Iris prismatica 57
- Slender Bulrush; Slender Bul Rush Schoenoplectus heterochaetus —
- Slender Cottonweed Froelichia gracilis —
- Slender Crabgrass Digitaria filiformis —
- Slender Dayflower Commelina erecta 49
- Slender False Foxglove Agalinis tenuifolia 54
- Slender Fimbry Fimbristylis autumnalis 15
- Slender Flatsedge Cyperus bipartitus 36
- Slender Flower Beard Tongue Penstemon tenuiflorus —
- Slender Goldenrod Solidago erecta 93
- Slender Ladies'-tresses Spiranthes lacera 22
- Slender Lespedeza Lespedeza virginica 71
- Slender Lipfern Myriopteris gracilis 8
- Slender Looseflower Sedge Carex gracilescens 58
- Slender Mannagrass Glyceria melicaria 36
- Slender Mountain-mint Pycnanthemum tenuifolium 45
- Slender Parsley-piert Aphanes australis —
- Slender Rose-gentian Sabatia campanulata 14
- Slender Russian Thistle Salsola collina —
- Slender Spikerush Eleocharis tenuis 34
- Slender Threeseed Mercury Acalypha gracilens 33
- Slender Toothwort Cardamine angustata 51
- Slender Waternymph Najas gracillima 13
- Slender Wedgescale Sphenopholis intermedia 8
- Slender Woodland Sedge Carex digitalis 58
- Slender Yellow Woodsorrel Oxalis dillenii 57
- Slender Yellow-eyed-grass Xyris torta 29
- Slickseed Fuzzy-bean Strophostyles leiosperma 55
- Slim-flower Muhly Muhlenbergia tenuiflora 27
- Slimleaf Witchgrass Dichanthelium linearifolium 49
- Slippery Elm Ulmus rubra 76
- Small Beggarticks Bidens discoidea 86
- Small Enchanter's-nightshade Circaea alpina 8
- Small Flower Vetch Vicia minutiflora —
- Small Fruit Witchgrass Dichanthelium microcarpon 49
- Small Fruited Bulrush; Panicled Bulrush; Panicled Bul Rush; Smallfruited Bulrush; Small Fruited Bul Rush; Smallfruited Bul Rush; Small Fruit Bulrush; Smallfruited Bulrush; Small Fruit Bul Rush; Smallfruit Bul Rush Scirpus microcarpus —
- Small Green Wood Orchid Platanthera clavellata 27
- Small Mallow; Dwarf Mallow; Cheeses; Low Mallow; Dwarfmallow; Smallmallow Malva pusilla —
- Small Pondweed Potamogeton pusillus 36
- Small Sundrops Oenothera perennis 79
- Small Venus's-looking-glass Triodanis biflora 20
- Small White Aster Symphyotrichum racemosum 95
- Small Wood Sunflower Helianthus microcephalus 97
- Small-flower Baby-blue-eyes Nemophila aphylla 8
- Small-flower Quickweed Galinsoga parviflora —
- Small-flower Thoroughwort Eupatorium semiserratum 81
- Small-flowered Crane's-bill Geranium pusillum —
- Small's Ash Fraxinus smallii 75
- Small's Black-snakeroot Sanicula smallii 15
- Small's Ragwort Packera anonyma 81
- Smaller Forget-me-not Myosotis laxa 43
- Smallflower Buttercup Ranunculus parviflorus —
- Smallflower Halfchaff Sedge Cyperus subsquarrosus 36
- Smallflower Halfchaff Sedge Lipocarpha micrantha 8
- Smallflower Hawksbeard Crepis pulchra —
- Smallflower Tamarisk Tamarix parviflora —
- Smallfruit Agrimony Agrimonia microcarpa 40
- Smallhead Blazing-star Liatris microcephala 59
- Smalls Knotweed Polygonum aviculare ssp. buxiforma —
- Smartweed Dodder Cuscuta polygonorum —
- Smooth Arrow Wood Viburnum recognitum 85
- Smooth Azalea Rhododendron arborescens 90
- Smooth Beggarticks Bidens laevis 90
- Smooth Blackberry Rubus canadensis 98
- Smooth Blackhaw Viburnum prunifolium 88
- Smooth Blue Aster Symphyotrichum laeve 95
- Smooth Brome Bromus inermis -15
- Smooth Carrion-flower Smilax herbacea 69
- Smooth Cliffbrake Pellaea glabella —
- Smooth Crabgrass Digitaria ischaemum —
- Smooth False-buttonweed Spermacoce glabra 46
- Smooth Forked Nailwort Paronychia canadensis 8
- Smooth Hawksbeard Crepis capillaris —
- Smooth Heart Leaf Aster Symphyotrichum lowrieanum 95
- Smooth Hedge-nettle Stachys tenuifolia 56
- Smooth Hydrangea Hydrangea arborescens 59
- Smooth Meadow-parsnip Thaspium trifoliatum 29
- Smooth Oxeye Heliopsis helianthoides 49
- Smooth Phlox Phlox glaberrima 54
- Smooth Pigweed Amaranthus hybridus 68
- Smooth Rockcress Borodinia laevigata 26
- Smooth Small-leaf Tick-trefoil Desmodium marilandicum 68
- Smooth Smartweed Persecaria Persicaria —
- Smooth Solomon's-seal Polygonatum biflorum 28
- Smooth Sumac Rhus glabra 92
- Smooth Tick-trefoil Desmodium laevigatum 68
- Smooth White Violet Viola minuscula 78
- Smooth Wild-petunia Ruellia strepens 31
- Smooth Yellow False Foxglove Aureolaria flava 44
- Smooth Yellow Violet Viola pubescens var. scabriuscula 78
- Smooth-sheath Sedge Carex laevivaginata 58
- Smut-grass Sporobolus indicus —
- Snow Trillium Trillium nivale —
- Snow-on-the-mountain Euphorbia marginata —
- Snowy Black Anthers Melanthera nivea —
- Snowy Campion; Evening Campion Silene nivea —
- Soapwort Saponaria officinalis —
- Soapwort Gentian Gentiana saponaria 29
- Soft Brome Bromus hordeaceus -30
- Soft Fox Sedge Carex conjuncta —
- Soft Golden-aster Bradburia pilosa 73
- Soft Leaf Witch Grass Dichanthelium malacophyllum —
- Soft Rush Juncus effusus —
- Softstem Bulrush Schoenoplectus tabernaemontani 42
- Sorghum Sorghum bicolor —
- Sour Cherry Prunus cerasus —
- Sourwood Oxydendrum arboreum 64
- South American Vervain Verbena bonariensis —
- Southeastern Flowering Spurge Euphorbia pubentissima 59
- Southeastern Slimspike Three-awn Aristida longespica 8
- Southeastern Wild Rye Elymus glabriflorus var. australis —
- Southeastern Wild Rye Elymus glabriflorus var. glabriflorus —
- Southeastern Wild-rye Elymus glabriflorus 48
- Southern Adder's-tongue Ophioglossum pycnostichum 8
- Southern Arrowwood Viburnum dentatum 85
- Southern Blue Monkshood Aconitum uncinatum 24
- Southern Bluet Houstonia micrantha 35
- Southern Bog Clubmoss Lycopodiella appressa 11
- Southern Bush-honeysuckle Diervilla sessilifolia 36
- Southern Catalpa Catalpa bignonioides 57
- Southern Cattail Typha domingensis 52
- Southern Coastal Violet Viola septemloba 78
- Southern Crabapple Malus angustifolia 99
- Southern Crabgrass Digitaria ciliaris —
- Southern Dewberry Rubus trivialis 96
- Southern Goldenrod Solidago austrina 93
- Southern Grapefern Sceptridium biternatum 11
- Southern Ground-cedar Diphasiastrum digitatum 11
- Southern Harebell Campanula divaricata 21
- Southern Horseweed Erigeron pusillus 87
- Southern Lady Fern Athyrium asplenioides 19
- Southern Lobelia Lobelia amoena 48
- Southern Loosestrife Steironema tonsum 58
- Southern Magnolia Magnolia grandiflora 72
- Southern Marsh St. John's-wort Triadenum tubulosum 69
- Southern Mountain Cranberry Vaccinium erythrocarpum 98
- Southern Mountain-mint Pycnanthemum pycnanthemoides 45
- Southern Prairie Aster Eurybia hemispherica 70
- Southern Racemose Goldenrod Solidago arenicola —
- Southern Red Oak Quercus falcata 88
- Southern Rein Orchid Platanthera flava 27
- Southern Shagbark Hickory Carya carolinae-septentrionalis 74
- Southern Six Weeks Fescue Vulpia octoflora var. octoflora 12
- Southern Skullcap Scutellaria australis 45
- Southern Stoneseed Lithospermum tuberosum —
- Southern Sugar Maple Acer saccharum ssp. floridanum 86
- Southern Swamp Dogwood Cornus foemina 98
- Southern Twayblade Neottia bifolia 8
- Southern Waternymph Najas guadalupensis 13
- Southern Wild-rice Zizaniopsis miliacea 18
- Southern Winged Loosestrife Lythrum lanceolatum 65
- Southern Woodland Violet Viola hirsutula 78
- Southwestern Marbleseed Lithospermum bejariense —
- Soybean Glycine max —
- Spanish Chestnut Castanea sativa —
- Spanish-needles Bidens bipinnata 87
- Sparkleberry Vaccinium arboreum 100
- Spear Orach; Spear Saltbush; Spear Salt Bush Atriplex patula —
- Spearmint Mentha spicata -30
- Spearmint Mentha spicata var. spicata —
- Speckled Wood-lily Clintonia umbellulata 8
- Spider Lily Lycoris radiata var. radiata —
- Spike Bentgrass; Spike Bent Grass Agrostis exarata —
- Spiked Hoary-pea Tephrosia spicata 46
- Spineless Hornwort Ceratophyllum echinatum 13
- Spinulose Wood-fern Dryopteris carthusiana 23
- Spiny Amaranth Amaranthus spinosus —
- Spiny Plumeless-thistle Carduus acanthoides —
- Splitbeard Bluestem Andropogon ternarius 51
- Spoonleaf Purple Everlasting Gamochaeta purpurea 35
- Spoonleaf Sundew Drosera intermedia 12
- Spotted Beebalm Monarda punctata 71
- Spotted Coralroot Corallorhiza maculata 8
- Spotted Dead-nettle Lamium maculatum —
- Spotted Jewelweed Impatiens capensis 67
- Spotted Knapweed Centaurea stoebe -55
- Spotted Lady's-thumb Persicaria maculosa -55
- Spotted Mandarin Prosartes maculata 8
- Spotted Pondweed Potamogeton pulcher 36
- Spotted Spurge Euphorbia maculata 59
- Spotted St. John's-wort Hypericum punctatum 69
- Spotted Water-hemlock Cicuta maculata 53
- Spotted Wintergreen Chimaphila maculata 27
- Spotted-sheath Witchgrass Dichanthelium yadkinense 49
- Spreading Bur Parsley Torilis arvensis —
- Spreading Chervil Chaerophyllum procumbens 11
- Spreading Dogbane Apocynum androsaemifolium 58
- Spreading Haw Thorn Crataegus x disperma 85
- Spreading Sandmat Euphorbia humistrata —
- Spreading Sedge Carex laxiculmis var. laxiculmis 58
- Spreading Wallflower Erysimum repandum —
- Spreading Yellow False Foxglove Aureolaria patula —
- Spring Avens Geum vernum 24
- Spring Coralroot Corallorhiza wisteriana 8
- Spring Draba Draba verna —
- Spring Forget-me-not Myosotis verna 43
- Spring Ladies'-tresses Spiranthes vernalis 22
- Square stemmed spike rush Eleocharis smallii —
- Squarestem Spikerush Eleocharis quadrangulata 34
- Squarrose Sedge Carex squarrosa 58
- Squirrel Corn Dicentra canadensis 13
- Squirrel Tail Fescue Vulpia elliotea —
- St. Andrew's-cross Hypericum hypericoides 73
- St. Peter's-wort Hypericum crux-andreae 72
- Staghorn Sumac Rhus typhina 87
- Stalked Bulrush Scirpus pedicellatus —
- Stalked Panicgrass Coleataenia pulchra 49
- Stalked Wild Petunia Ruellia pedunculata —
- Stalkless Yellowcress Rorippa sessiliflora 36
- Standing-cypress Ipomopsis rubra 15
- Standishs Honeysuckle Lonicera fragrantissima ssp. standishii —
- Standleys Goosefoot Chenopodium standleyanum 52
- Star Chickweed Stellaria pubera 65
- Star Duckweed Lemna trisulca 27
- Star Tickseed Coreopsis pubescens 67
- Starch Grape-hyacinth Muscari neglectum —
- Starflower Trientalis borealis 58
- Starry Campion Silene stellata 49
- Starry Solomons Pume Maianthemum stellatum —
- Starved Witchgrass Dichanthelium depauperatum 49
- Steeplebush Spiraea tomentosa 70
- Stemless Evening Primrose Oenothera triloba —
- Sticky Chickweed Cerastium glomeratum —
- Sticky Goldenrod Solidago racemosa —
- Stiff Aster Ionactis linariifolia 48
- Stiff Cowbane Oxypolis rigidior 23
- Stiff Marsh Bedstraw Galium tinctorium 54
- Stiff Tick-trefoil Desmodium obtusum 68
- Stiff Yellow Flax Linum medium —
- Stinging Nettle Urtica dioica —
- Stinkgrass Eragrostis cilianensis —
- Stinking Chamomile* Anthemis cotula —
- Stout Goldenrod Solidago squarrosa 93
- Stout Rush Juncus nodatus —
- Straw-colored Flatsedge Cyperus strigosus 36
- Strawstem Beggarticks Bidens comosa 86
- Strict Forget-me-not Myosotis stricta —
- Stringy Stonecrop Sedum sarmentosum —
- Striped Cream Violet Viola striata 78
- Striped Gentian Gentiana villosa 29
- Striped Maple Acer pensylvanicum 86
- Suckling Hop Clover Trifolium dubium —
- Sugar Maple Acer saccharum 86
- Sugarberry Celtis laevigata 65
- Sugarcane Plumegrass Erianthus giganteus 37
- Sulphur Cinquefoil Potentilla recta -30
- Summer Bluet Houstonia purpurea 35
- Summer Grape Vitis aestivalis 74
- Summer Sedge Carex aestivalis 58
- Summer Snowflake Leucojum aestivum —
- Summer-cypress Bassia scoparia —
- Supplejack Berchemia scandens 20
- Svensons Wild Rye Elymus svensonii —
- Swamp Agrimony Agrimonia parviflora 40
- Swamp Azalea Rhododendron viscosum 90
- Swamp Buttercup Ranunculus septentrionalis 62
- Swamp Chestnut Oak Quercus michauxii 88
- Swamp Cottonwood Populus heterophylla 67
- Swamp Dewberry Rubus hispidus 95
- Swamp Dock Rumex verticillatus 53
- Swamp Leatherflower Clematis crispa 48
- Swamp Loosestrife Decodon verticillatus 49
- Swamp Milkweed Asclepias incarnata 70
- Swamp Rose Rosa palustris 76
- Swamp Rosemallow Hibiscus moscheutos 77
- Swamp Smartweed Persicaria hydropiperoides 79
- Swamp Thistle Cirsium muticum 87
- Swamp Tupelo Nyssa biflora 74
- Swamp Wedgescale Sphenopholis pensylvanica 8
- Swamp White Oak Quercus bicolor 88
- Swamp-candles Lysimachia terrestris 58
- Swan's Sedge Carex swanii 58
- Sweet Birch Betula lenta 74
- Sweet Cherry Prunus avium —
- Sweet Coneflower Rudbeckia subtomentosa 75
- Sweet Crabapple Malus coronaria 99
- Sweet Goldenrod Solidago odora 93
- Sweet Indian-plantain Hasteola suaveolens 8
- Sweet Joe-pye-weed Eutrochium purpureum 86
- Sweet Mock-orange Philadelphus coronarius —
- Sweet Pea Lathyrus odoratus —
- Sweet Pinesap Monotropsis odorata 8
- Sweet Potato Ipomoea batatas —
- Sweet Vernal-grass Anthoxanthum odoratum —
- Sweet White Trillium Trillium simile 24
- Sweet White Violet Viola blanda 78
- Sweet William Dianthus barbatus —
- Sweet Woodreed Cinna arundinacea 11
- Sweet Wormwood Artemisia annua —
- Sweet-fern Comptonia peregrina 47
- Sweetbay Magnolia Magnolia virginiana 72
- Sweetbrier Rose Rosa rubiginosa —
- Sweetgum Liquidambar styraciflua 71
- Sweetshrub Calycanthus floridus 24
- Switchgrass Panicum virgatum 49
- Sycamore Maple Acer pseudoplatanus —
T
- Tall Annual Willowherb; Tall Annual Willow Herb Epilobium brachycarpum —
- Tall Beggarticks Bidens vulgata 86
- Tall Bellflower Campanula americana 36
- Tall Blue Lettuce Lactuca biennis 89
- Tall Blue Wild Indigo Baptisia australis 76
- Tall Buttercup Ranunculus acris —
- Tall Fescue Schedonorus arundinaceus -85
- Tall Flat-top Aster Doellingeria umbellata 77
- Tall Goldenrod Solidago altissima 93
- Tall Hairy Agrimony Agrimonia gryposepala 40
- Tall Horned Beaksedge Rhynchospora macrostachya 39
- Tall Lespedeza Lespedeza stuevei 70
- Tall Meadow-rue Thalictrum pubescens 51
- Tall Oatgrass Arrhenatherum elatius —
- Tall Rattlesnake-root Nabalus altissimus 46
- Tall Redtop Tridens flavus 31
- Tall Thimbleweed Anemone virginiana 28
- Tall Thistle Cirsium altissimum 88
- Tall Thoroughwort Eupatorium altissimum 84
- Tall Tick-trefoil Desmodium glabellum 68
- Tall Tickseed Coreopsis tripteris 70
- Tansy Mustard Descurainia pinnata 36
- Tansy Rosinweed Silphium pinnatifidum —
- Tapered Leaf Witch Grass Dichanthelium acuminatum var. acuminatum 49
- Taperleaf Bugleweed Lycopus rubellus 30
- Tapertip Cup Grass Eriochloa acuminata —
- Tapertip Flatsedge Cyperus acuminatus 36
- Tapertip Rush Juncus acuminatus 49
- Tarheel Sedge Carex austrocaroliniana 58
- Tartarian Honeysuckle Lonicera tatarica —
- Tassel Grape Hyacinth Muscari comosum —
- Tatarian Aster Aster tataricus —
- Tawny Cottongrass Eriophorum virginicum 12
- Teal Lovegrass Eragrostis hypnoides 32
- Tennessee Bladder Fern Cystopteris tennesseensis 8
- Tennessee Glade Cress Leavenworthia exigua —
- Tennessee Leafcup Polymnia laevigata —
- Tennessee Marbleseed Lithospermum molle —
- Tennessee Starwort Stellaria corei 65
- Terrestrial Water-starwort Callitriche terrestris 11
- Texas Red Oak Quercus texana —
- Texas Sedge Carex texensis 58
- Texas Signal-grass Urochloa texana —
- Thicket Bean Phaseolus polystachios 70
- Thicket Sedge Carex abscondita 58
- Thickleaf Meadow-rue Thalictrum coriaceum 51
- Thin Bristly Paspalum Paspalum setaceum var. ciliatifolium 59
- Thinleaf Late Purple Aster Symphyotrichum phlogifolium 95
- Thinleaf Sunflower Helianthus decapetalus 97
- Thorny Olive Elaeagnus pungens —
- Thread Stalk Beeblossom Oenothera filipes 79
- Threadleaf Sundrops Oenothera linifolia 79
- Three Lobe Violet Viola palmata 78
- Three-flower Melicgrass Melica nitens 8
- Three-leaved Rattlesnake-root Nabalus trifoliolatus 46
- Three-way Sedge Dulichium arundinaceum 8
- Threepart Violet Viola tripartita 78
- Thunberg's Lespedeza Lespedeza thunbergii -55
- Thunberg's Meadowsweet Spiraea thunbergii —
- Thyme-leaf Pinweed Lechea minor 13
- Thymeleaf Bluet Houstonia serpyllifolia 35
- Thymeleaf Speedwell Veronica serpyllifolia —
- Tiger Lily Lilium lancifolium —
- Timid Sedge Carex timida —
- Tinted Spurge Euphorbia commutata 59
- Tiny Bluet Houstonia pusilla 35
- Tiny Mousetail Myosurus minimus 8
- Toad Rush Juncus bufonius 49
- Tooth-leaved Croton Croton glandulosus —
- Toothed Flatsedge Cyperus dentatus 36
- Toothed Rock Cress Borodinia dentata —
- Toothed Spurge Euphorbia dentata 59
- Toothed Whitetop Aster Sericocarpus asteroides 48
- Torrey's Mountain-mint Pycnanthemum torreyi 45
- Torreys Rush Juncus torreyi 49
- Torreys Thoroughwort Eupatorium torreyanum 81
- Tower Mustard Turritis glabra 25
- Trailing Arbutus Epigaea repens 37
- Trailing Fuzzy-bean Strophostyles helvola 59
- Trailing Lespedeza Lespedeza procumbens 71
- Trailing Loosestrife Steironema radicans 58
- Trailing Pearlwort Sagina decumbens 8
- Tree Ground-pine Dendrolycopodium dendroideum 11
- Tree-of-heaven Ailanthus altissima -95
- Triangle Orach Atriplex prostrata —
- Trifoliate Orange Citrus trifoliata —
- Troublesome Sedge Carex molesta —
- Trudells Spleenwort Asplenium trudellii 15
- True Forget-me-not Myosotis scorpioides —
- Trumpet-creeper Campsis radicans 46
- Tuberous Grass-pink Calopogon tuberosus 12
- Tufted Hairgrass Deschampsia cespitosa ssp. glauca 12
- Tufted or Desert Love Grass Eragrostis pectinacea 32
- Tufted Yellow Woodsorrel Oxalis colorea 57
- Tuliptree Liriodendron tulipifera 66
- Tumble Knapweed; Tumble Knap Weed; Diffuse Knap Weed; Diffuse Knapweed; White Flowered Knap Weed; White Flower Knap Weed; Whiteflowered Knap Weed; Whiteflower Knap Weed; White Flowered Knapweed; White Flower Knapweed; Whiteflowered Knapweed; Whiteflower Knapweed Centaurea diffusa —
- Tumble Mustard Sisymbrium altissimum —
- Turion Duckweed Lemna turionifera 27
- Turk's-cap Lily Lilium superbum 47
- Tussock Sedge Carex stricta 58
- Twig-rush Cladium mariscoides 25
- Twining Screwstem Bartonia paniculata 8
- Twinleaf Jeffersonia diphylla 9
- Twisted Sedge Carex torta 58
- Twisted Trillium Trillium stamineum —
- Two-flower Dwarf-dandelion Krigia biflora 25
- Two-flower Melicgrass Melica mutica 8
- Two-headed Water-starwort Callitriche heterophylla 11
- Two-leaved Toothwort Cardamine diphylla 51
- Twoleaf Miterwort Mitella diphylla 11
U
- Umbrella Flat Sedge Cyperus diandrus —
- Umbrella Magnolia Magnolia tripetala 71
- Upland Bentgrass Agrostis perennans 45
- Upland Bladder Fern Cystopteris tenuis 8
- Upland Boneset Eupatorium sessilifolium 83
- Upland Swamp Privet Forestiera ligustrina —
- Upland Willow Salix humilis var. humilis —
- Upright Burhead Echinodorus berteroi —
- Upright Carrion Flower Smilax ecirrata —
V
- Vahl's Fimbry Fimbristylis vahlii 15
- Valdivia Duckweed Lemna valdiviana 27
- Vanhoutte Spiraea Spiraea x vanhouttei —
- Variable Flatsedge Cyperus difformis —
- Variable Witchgrass Dichanthelium commutatum 50
- Variable-leaf Heartleaf Hexastylis heterophylla 15
- Variable-leaf Water-milfoil Myriophyllum heterophyllum 33
- Vasevine Leatherflower Clematis viorna 48
- Veined Skullcap Scutellaria nervosa 45
- Veiny Lined Aster Symphyotrichum praealtum var. praealtum —
- Veiny Pea Lathyrus venosus 71
- Veiny Peppergrass Lepidium oblongum —
- Velvet Witchgrass Dichanthelium scoparium 49
- Velvetleaf Abutilon theophrasti —
- Velvety Tick-trefoil Desmodium viridiflorum 68
- Venus's-hair Fern Adiantum capillus-veneris 15
- Violet Crabgrass Digitaria violascens —
- Violet Lespedeza Lespedeza frutescens 70
- Violet Woodsorrel Oxalis violacea 60
- Virginia Bluebells Mertensia virginica 30
- Virginia Bugleweed Lycopus virginicus 30
- Virginia Bunchflower Melanthium virginicum 35
- Virginia Buttonweed Diodia virginiana 22
- Virginia Creeper Parthenocissus quinquefolia 73
- Virginia Dayflower Commelina virginica 48
- Virginia Dwarf-dandelion Krigia virginica 25
- Virginia Ground-cherry Physalis virginiana 74
- Virginia Heartleaf Hexastylis virginica 15
- Virginia Iris Iris virginica 57
- Virginia Marsh St. Johnswort Hypericum virginicum 69
- Virginia Meadow-beauty Rhexia virginica 40
- Virginia Mountain-mint Pycnanthemum virginianum 48
- Virginia or West Virginia spiraea Hedyotis nigricans —
- Virginia Pennywort Obolaria virginica 8
- Virginia Peppergrass Lepidium virginicum 60
- Virginia Pine Pinus virginiana 74
- Virginia Plantain Plantago virginica 70
- Virginia Rose Rosa virginiana 76
- Virginia Sida; Virginia Mallow; Virginia Fanpetals Ripariosida hermaphrodita —
- Virginia Snakeroot Endodeca serpentaria 20
- Virginia Spiderwort Tradescantia virginiana 54
- Virginia Spiraea Spiraea virginiana 70
- Virginia Spring-beauty Claytonia virginica 34
- Virginia Stickseed Hackelia virginiana 14
- Virginia Sweetspire Itea virginica 33
- Virginia Threeseed Mercury Acalypha virginica 33
- Virginia Virgin's-bower Clematis virginiana 50
- Virginia Waterleaf Hydrophyllum virginianum 26
- Virginia Wild-rye Elymus virginicus 48
- Virginia Yellow Flax Linum virginianum 45
- Virginia-cress Planodes virginicum 8
- Vitis cinerea Vitis cinerea 74
W
- Walking Fern Asplenium rhizophyllum 15
- Wall Bedstraw Galium divaricatum —
- Wall Bedstraw Galium parisiense —
- Wall-rue Spleenwort Asplenium ruta-muraria 15
- Wallflower-cabbage Coincya monensis —
- Wand Lespedeza Lespedeza violacea 70
- Warty Panicgrass Panicum verrucosum 49
- Warty Spurge Euphorbia spathulata 59
- Washington Hawthorn Crataegus phaenopyrum 85
- Water Hickory Carya aquatica 74
- Water Locust Gleditsia aquatica —
- Water Oak Quercus nigra 88
- Water Purslane Didiplis diandra 8
- Water Smartweed Persicaria amphibia 76
- Water Speedwell Veronica anagallis-aquatica 48
- Water Stargrass Heteranthera dubia 12
- Water Tupelo Nyssa aquatica 74
- Water-chickweed Stellaria aquatica —
- Water-plantain Spearwort Ranunculus ambigens 59
- Water-shield Brasenia schreberi 35
- Watercress Nasturtium officinale —
- Watermelon Citrullus lanatus —
- Waterpod; Aunt Lucy; Water Pod Ellisia nyctelea 12
- Waterthread Pondweed Potamogeton diversifolius 36
- Wavy Hairgrass Avenella flexuosa 12
- Wavyleaf Aster Symphyotrichum undulatum 95
- Wavyleaf Purple Coneflower Echinacea simulata 47
- Waxyleaf Meadow-rue Thalictrum amphibolum 51
- Wayfaring Tree; Wayfaringtree Viburnum lantana —
- Weak Rush Juncus debilis 49
- Weak Stellate Sedge Carex seorsa 58
- Weakleaf Yucca Yucca flaccida 51
- Weakstalk Bulrush Schoenoplectiella purshiana 42
- Wedgeleaf Draba Tomostima cuneifolia —
- Weeping Alkaligrass Puccinellia distans —
- Weeping Forsythia Forsythia suspensa —
- Weeping Lovegrass Eragrostis curvula —
- Weeping Willow Salix babylonica —
- Western Beakgrain Diarrhena obovata —
- Western Daisy Astranthium integrifolium 13
- Western Dwarf Dandelion Krigia occidentalis —
- Western Iron Weed; Western Ironweed Vernonia baldwinii var. baldwinii —
- Western Rose Mallow Hibiscus lasiocarpos —
- Western Rough Goldenrod Solidago radula 93
- Western Sampson's-snakeroot Orbexilum pedunculatum 29
- Western Snowberry Symphoricarpos occidentalis —
- Western Sunflower Helianthus occidentalis 97
- Western Wallflower Erysimum capitatum —
- Western Witch Grass Dichanthelium acuminatum var. fasciculatum 49
- Whip Nutrush Scleria triglomerata 12
- White Amaranth Amaranthus albus —
- White Arrowleaf Aster Symphyotrichum urophyllum 95
- White Ash Fraxinus americana 75
- White Avens Geum canadense 25
- White Baneberry Actaea pachypoda 25
- White Beaksedge Rhynchospora alba 39
- White Bear Sedge Carex albursina 58
- White Bee Balm Monarda russeliana —
- White Bergamot Monarda clinopodia 71
- White Blue-eyed-grass Sisyrinchium albidum 16
- White Campion Silene latifolia —
- White Clover Trifolium repens —
- White Colicroot Aletris farinosa 14
- White Crownbeard Verbesina virginica 79
- White Cutgrass Leersia virginica 32
- White Doll's-daisy Boltonia asteroides 27
- White Edged Flat Sedge Cyperus flavicomus 36
- White Fringeless Orchid Platanthera integrilabia 27
- White Goldenrod Solidago bicolor 93
- White Haired Goldenrod; Whitehair Goldenrod; White Hair Goldenrod; Whitehaired Goldenrod; White Haired Golden Rod; Whitehair Golden Rod; White Hair Golden Rod; Whitehaired Golden Rod Solidago albopilosa —
- White Heath Aster Symphyotrichum ericoides 95
- White Ladys Slipper Cypripedium candidum —
- White Leaf Leather Flower Clematis glaucophylla —
- White Milkweed Asclepias variegata 66
- White Morning-glory Ipomoea lacunosa 81
- White Mulberry Morus alba -55
- White Mustard Sinapis arvensis —
- White Oak Quercus alba 88
- White Panicle Aster Symphyotrichum lanceolatum 95
- White Panicled Aster Symphyotrichum lanceolatum var. lanceolatum 95
- White Poplar Populus alba -30
- White Prairie Clover Dalea candida —
- White Rattlesnake-root Nabalus albus 46
- White Sagebrush Artemisia ludoviciana —
- White Snakeroot Ageratina altissima 83
- White Sweetclover Melilotus albus -30
- White Thoroughwort Eupatorium album 81
- White Trout Lily Erythronium albidum —
- White Turtlehead Chelone glabra 33
- White Vervain Verbena urticifolia 77
- White Water Crowfoot Ranunculus longirostris —
- White Willow Salix alba —
- White Wood-aster Eurybia divaricata 70
- White-bracted Thoroughwort Eupatorium leucolepis 81
- White-edge Sedge Carex debilis 58
- White-edge Witchgrass Dichanthelium tenue 49
- White-flowered Leafcup Polymnia canadensis 13
- White-nymph Trepocarpus aethusae 8
- Whiteflowered Petunia Petunia axillaris —
- Whitehair Witchgrass Dichanthelium villosissimum 49
- Whiteroot Rush Juncus brachycarpus 49
- Whitetinge Sedge Carex albicans 58
- Whole Leaf Rosinweed Silphium integrifolium —
- Whorled Horsebalm Collinsonia verticillata 29
- Whorled Loosestrife Lysimachia quadrifolia 58
- Whorled Milkweed Asclepias verticillata 71
- Whorled Milkwort Senega verticillata 29
- Whorled Mountain-mint Pycnanthemum verticillatum 45
- Whorled Tickseed Coreopsis verticillata 67
- Whorled Wood-aster Oclemena acuminata 56
- Widow Sedge Carex basiantha 58
- Widowscross Sedum pulchellum —
- Wild Basil Clinopodium vulgare —
- Wild Bean; Wild Kidney Bean; Slender Flower Indian Breadroot; Slender Flower Indian Bread Root Pediomelum tenuiflorum —
- Wild Bergamot Monarda fistulosa 74
- Wild Black Currant Ribes americanum —
- Wild Bleeding-heart Dicentra eximia 13
- Wild Blue Phlox Phlox divaricata 54
- Wild Field Pansy Viola bicolor —
- Wild Four-o'clock Mirabilis nyctaginea —
- Wild Geranium Geranium maculatum 79
- Wild Goose Plum Prunus munsoniana 100
- Wild Hyacinth Camassia scilloides 17
- Wild Leek Allium ampeloprasum —
- Wild Mint Mentha canadensis 65
- Wild Oats Avena fatua —
- Wild Parsnip Pastinaca sativa -30
- Wild Pink Silene caroliniana 49
- Wild Poinsettia Euphorbia cyathophora 59
- Wild Potato-vine Ipomoea pandurata 82
- Wild Radish Raphanus raphanistrum —
- Wild Sarsaparilla Aralia nudicaulis 65
- Wild Strawberry Fragaria virginiana 81
- Willdenow's Sedge Carex willdenowii 58
- Willow Oak Quercus phellos 88
- Willowleaf Aster Symphyotrichum praealtum 95
- Willowleaf Lettuce Lactuca saligna —
- Windmill Grass Chloris verticillata —
- Wineberry Rubus phoenicolasius -55
- Winged Burning-bush Euonymus alatus -55
- Winged Elm Ulmus alata 76
- Winged Pigweed Cycloloma atriplicifolium —
- Winged Sumac Rhus copallinum 90
- Wingleaf Primrose-willow Ludwigia decurrens 53
- Wingstem Verbesina alternifolia 79
- Winter Aconite Eranthis hyemalis —
- Winter Bentgrass Agrostis hyemalis 45
- Winter Honeysuckle Lonicera fragrantissima -55
- Winter Vetch Vicia villosa ssp. varia —
- Winter-creeper Euonymus fortunei -55
- Wirestem Muhly Muhlenbergia frondosa 27
- Wiry Panicgrass Panicum flexile 49
- Witherod Viburnum Viburnum cassinoides 85
- Wolf's Bluegrass Poa wolfii 59
- Wood Anemone Anemone quinquefolia 29
- Wood Lily Lilium philadelphicum 46
- Wood Violet Viola subsinuata 78
- Woodland Agrimony Agrimonia rostellata 40
- Woodland Bluegrass Poa sylvestris 59
- Woodland Bulrush Scirpus expansus 42
- Woodland Lettuce Lactuca floridana 89
- Woodland Muhly Muhlenbergia sylvatica 27
- Woodland Rush Juncus subcaudatus 49
- Woodland Stonecrop Sedum ternatum 52
- Woodland Sunflower Helianthus divaricatus 100
- Woolgrass Bulrush Scirpus cyperinus 42
- Woolly Croton Croton capitatus 73
- Woolly Plantain Plantago patagonica —
- Woolly Sedge Carex pellita 58
- Woolly Witchgrass Dichanthelium acuminatum 49
- Woolly Witchgrass Dichanthelium scabriusculum 49
- Wormseed Wallflower Erysimum cheiranthoides —
- Wright's Plantain Plantago wrightiana —
- Wrinkle-leaf Goldenrod Solidago rugosa 93
X
- Xanthium strumarium Xanthium strumarium —
Y
- Yarrow Achillea millefolium 59
- Yarrow Achillea millefolium 59
- Yaupon Holly Ilex vomitoria 97
- Yellow Alyssum Alyssum alyssoides —
- Yellow Avens Geum aleppicum 23
- Yellow Birch Betula alleghaniensis 74
- Yellow Bristlegrass Setaria pumila —
- Yellow Buckeye Aesculus flava 72
- Yellow Crownbeard Verbesina occidentalis 79
- Yellow Flatsedge Cyperus flavescens 36
- Yellow Floating-heart Nymphoides peltata —
- Yellow Fumewort Corydalis flavula 17
- Yellow Giant-hyssop Agastache nepetoides 37
- Yellow Groove Bamboo Phyllostachys aureosulcata —
- Yellow Indiangrass Sorghastrum nutans 44
- Yellow Iris Iris pseudacorus —
- Yellow Ladies'-tresses Spiranthes ochroleuca 22
- Yellow Lady's-slipper Cypripedium parviflorum 28
- Yellow Mandarin Prosartes lanuginosa 9
- Yellow Nutsedge Cyperus esculentus —
- Yellow Passionflower Passiflora lutea 57
- Yellow Pimpernel Taenidia integerrima 23
- Yellow Rocket-cress Barbarea vulgaris -30
- Yellow Salsify Tragopogon dubius —
- Yellow Screwstem Bartonia virginica 8
- Yellow Sneezeweed Helenium amarum —
- Yellow Spring Bedstraw Galium verum —
- Yellow Star-grass Hypoxis hirsuta 19
- Yellow Star-thistle Centaurea solstitialis —
- Yellow Sweetclover Melilotus officinalis -30
- Yellow Trillium Trillium luteum 24
- Yellow Trout-lily Erythronium americanum 20
- Yellow Water-buttercup Ranunculus flabellaris 59
- Yellow Wild Indigo Baptisia tinctoria 76
- Yellow Yam Dioscorea villosa 15
- Yellow-fringed Orchid Platanthera ciliaris 27
- Yellowfruit Horse-gentian Triosteum angustifolium 25
- Yellowfruit Sedge Carex annectens 58
- Yellowroot Xanthorhiza simplicissima 8
- Yellowseed False-pimpernel Lindernia dubia 23
Z
- Zigzag Goldenrod Solidago flexicaulis 93
- Zigzag Spiderwort Tradescantia subaspera 52