Plants - Species not yet on this site

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A

• Arnica, Narrow-leaved (Arnica angustifolia)
• Arrowhead, Grass-leaved (Sagittaria graminea)
• Aster, Low Rough (Eurybia radula)
• Aster, Pringle's (Symphyotrichum pilosum)
• Aster, Robyn's (Symphyotrichum robynsianum)
• Aster, Short's (Symphyotrichum shortii)

B

• Beaksedge, White (Rhynchospora alba)
• Bearberry, Alpine (Arctous alpina)
• Bearberry, Red (Arctous rubra)
• Bedstraw, Marsh (Galium palustre)
• Bedstraw, Northern (Galium boreale)
• Bedstraw, Rough (Galium asprellum)
• Beech, American (Fagus grandifolia)
• Beech, Blue (Carpinus caroliniana)
• Beggar Tick (Bidens frondosa)
• Beggar Tick, Tall (Bidens vulgata)
• Beggar Ticks, Swamp (Bidens tripartita)
• Bellflower, Peach-leaved (Campanula persicifolia)
• Bergamot, Purple (Monarda X media)
• Bilberry, Alpine (Vaccinium uliginosum)
• Bilberry, Oval-leaved (Vaccinium ovalifolium)
• Bindweed, Fringed (Fallopia cilinodis)
• Birch, River (Betula nigra)
• Birch, Yellow (Betula alleghaniensis)
• Bittercress, Small-flowered (Cardamine parviflora)
• Bittersweet, Asiatic (Celastrus orbiculatus)
• Bittersweet, Climbing (Celastrus scandens)
• Blackberry (Rubus allegheniensis)
• Blackberry, Bristly (Rubus setosus)
• Blackberry, Himilayan (Rubus procerus)
• Bladderwort, Hidden-fruited (Utricularia geminiscapa)
• Bladderwort, Lesser (Utricularia minor)
• Blazing Star, Rough (Liatris aspera)
• Bluebells, Virginia (Mertensia virginica)
• Blueberry, Dryland (Vaccinium pallidum)
• Blueberry, Early Low (Vaccinium angustifolium)
• Blueberry, Highbush (Vaccinium corymbosum)
• Bluegrass, Canada (Poa compressa)
• Bluejoint, Canada (Calamagrostis canadensis)
• Bluets, Long-leaved (Houstonia longifolia)
• Boneset, Tall (Eupatorium altissimum)
• Bouncing Bet (Saponaria officinalis)
• Brooklime, American (Veronica americana)
• Buckwheat, Climbing False (Fallopia scandens)
• Buffalo Berry (Shepherdia canadensis)
• Bugle, Erect (Ajuga genevensis)
• Bugleweed, Northern (Lycopus uniflorus)
• Bugleweed, Rough (Lycopus asper)
• Bulrush, Common Woolly (Scirpus cyperinus)
• Bulrush, Dark Green (Scirpus atrovirens)
• Bulrush, Drooping (Scirpus pendulus)
• Bulrush, Hard-stemmed (Schoenoplectus acutus)
• Bulrush, Softstem (Schoenoplectus tabernaemontani)
• Bur Marigold, Nodding (Bidens cernua)
• Bur Reed, Branching (Sparganium androcladum)
• Bur Reed, Great (Sparganium eurycarpum)
• Burdock, Great (Arctium lappa)
• Burning Bush (Euonymus atropurpureus)
• Bush Clover, Hairy (Lespedeza hirta)
• Bush Clover, Violet (Lespedeza violacea)
• Bush Clover, Wandlike (Lespedeza intermedia)
• Buttercup, Creeping (Ranunculus repens)
• Buttercup, Early (Ranunculus fascicularis)
• Buttercup, Hairy (Ranunculus sardous)
• Buttercup, Macouns (Ranunculus macounii)
• Buttercup, Swamp (Ranunculus septentrionalis)
• Buttercup, Tall (Ranunculus acris)
• Butterfly Bush (Buddleia davidii)

C

• Camas, White (Anticlea elegans)
• Campion, Moss (Silene acaulis)
• Carpetweed (Mollugo verticillata)
• Carrion Flower, Upright (Smilax ecirrata)
• Catalpa, Northern (Catalpa speciosa)
• Cats Ear (Hypochaeris radicata)
• Chamomile, Scentless (Tripleurospermum maritimum)
• Chamomile, Stinking (Anthemis cotula)
• Chamomile, Wild (Matricaria chamomilla)
• Charlock (Sinapis arvensis)
• Cherry, Bird (Prunus avium)
• Cherry, Black (Prunus serotina)
• Cherry, Perfumed (Prunus mahaleb)
• Cherry, Pin (Prunus pensylvanica)
• Chickweed, Alpine (Cerastium alpinum)
• Chickweed, Common (Stellaria media)
• Cicely, Mountain Sweet (Osmorhiza berteroi)
• Cinquefoil, Dwarf (Potentilla canadensis)
• Cinquefoil, Marsh (Comarum palustre)
• Cinquefoil, Rough (Potentilla norvegica)
• Cinquefoil, Rough-fruited (Potentilla recta)
• Cinquefoil, Silvery (Potentilla argentea)
• Cinquefoil, Snowy (Potentilla nivea)
• Cleavers (Galium aparine)
• Clover, Alsike (Trifolium hybridum)
• Clover, Hop (Trifolium aureum)
• Clover, Rabbit-foot (Trifolium arvense)
• Clover, Red (Trifolium pratense)
• Clover, Strawberry (Trifolium fragiferum)
• Clover, White (Trifolium repens)
• Clover, White Sweet (Melilotus albus)
• Clover, Yellow Sweet (Melilotus officinalis)
• Clubmoss, Bristly (Lycopodium annotinum)
• Clubmoss, Common (Lycopodium clavatum)
• Clubmoss, Flat-Branched Tree (Lycopodium obscurum)
• Clubmoss, Prickly Tree (Lycopodium dendroideum)
• Clubmoss, Shining (Huperzia lucidula)
• Clubrush, Tufted (Trichophorum cespitosum)
• Cocklebur, Common (Xanthium strumarium)
• Cohosh, Black (Actaea racemosa)
• Columbine, Garden (Aquilegia vulgaris)
• Comandra, Northern (Geocaulon lividum)
• Comfrey, Common (Symphytum officinale)
• Coneflower, Orange (Rudbeckia fulgida)
• Coneflower, Thin-leaved (Rudbeckia triloba)
• Coralroot, Autumn (Corallorhiza odontorhiza)
• Coreopsis, Lance-leaved (Coreopsis lanceolata)
• Coreopsis, Threadleaf (Coreopsis verticillata)
• Corn (Zea mays)
• Corydalis, Pale (Capnoides sempervirens)
• Cottongrass, Alpine (Trichophorum alpinum)
• Cottongrass, Green-keeled (Eriophorum viridicarinatum)
• Cottongrass, Slender (Eriophorum gracile)
• Cottongrass, Tawny (Eriophorum virginicum)
• Cottonwood, Eastern (Populus deltoides)
• Cowbane (Oxypolis rigidior)
• Crabapple, American (Malus coronaria)
• Cranberry, Highbush (Viburnum trilobum)
• Cranberry, Highbush (Viburnum opulus)
• Cranberry, Mountain (Vaccinium vitis-idaea)
• Creeper, Virginia (Parthenocissus inserta)
• Cress, Alpine Rock (Arabis alpina)
• Cress, Marsh Yellow (Rorippa palustris)
• Crowberry, Black (Empetrum nigrum)
• Cucumber, Squirting (Ecballium elaterium)
• Cudweed, Fragrant (Pseudognaphalium obtusifolium)
• Cup Plant (Silphium perfoliatum)
• Currant, Bristly Black (Ribes lacustre)
• Currant, Garden (Ribes rubrum)
• Currant, Skunk (Ribes glandulosum)
• Currant, Wild Red (Ribes triste)

D

• Dandelion, Fall (Scorzoneroides autumnalis)
• Dandelion, Marsh (Taraxacum palustre)
• Dandelion, Red-seeded (Taraxacum erythrospermum)
• Daphne (Daphne mezereum)
• Day-flower, Asiatic (Commelina communis)
• Dead Nettle, Purple (Lamium purpureum)
• Dead Nettle, Spotted (Lamium maculatum)
• Dead Nettle, White (Lamium album)
• Deerberry (Vaccinium stamineum)
• Dewberry, Northern (Rubus flagellaris)
• Dewberry, Swamp (Rubus hispidus)
• Dewdrop (Rubus repens)
• Dock, Broad-leaved (Rumex obtusifolius)
• Dock, Curled (Rumex crispus)
• Dodder (Cuscuta gronovii)
• Dogbane, Spreading (Apocynum androsaemifolium)
• Dogwood, Rough-leaved (Cornus drummondii)
• Dogwood, Round-leaved (Cornus rugosa)

E

• Elm, English (Ulmus procera)
• Elm, Rock (Ulmus thomasii)
• Elm, Slippery (Ulmus rubra)
• Elm, White (Ulmus americana)
• Elm, Wych (Ulmus glabra)
• English Ivy (Hedera helix)
• Everlasting, Clammy (Pseudognaphalium macounii)
• Everlasting, Pearly (Anaphalis margaritacea)
• Eyebright (Euphrasia stricta)

F

• Felwort, Marsh (Lomatogonium rotatum)
• Fern, Fragrant Cliff (Dryopteris fragrans)
• Fern, Hay Scented (Dennstaedtia punctilobula)
• Fern, Laurentian Fragile (Cystopteris laurentiana)
• Fern, Lowland Bladder (Cystopteris protrusa)
• Fern, Northern Wood (Dryopteris expansa)
• Feverfew (Tanacetum parthenium)
• Fireweed (Chamerion angustifolium)
• Firmoss, Northern (Huperzia selago)
• Flatsedge, Rusty (Cyperus odoratus)
• Flax, Common (Linum usitatissimum)
• Flax, Fairy (Linum catharticum)
• Flax, Grooved Yellow (Linum sulcatum)
• Flax, Stiff Yellow (Linum medium)
• Flax, Wild Yellow (Linum virginianum)
• Fleabane, Common (Erigeron philadelphicus)
• Fleabane, Daisy (Erigeron annuus)
• Fleabane, Hyssop-leaved (Erigeron hyssopifolius)
• Fleabane, Lesser Daisy (Erigeron strigosus)
• Floating Heart (Nymphoides cordata)
• Flower-of-an-Hour (Hibiscus trionum)
• Flowering Rush (Butomus umbellatus)
• Forget-me-not, Smaller (Myosotis laxa)
• Forget-me-not, True (Myosotis scorpioides)
• Forget-me-not, Upright (Myosotis stricta)
• Forsythia (Forsythia viridissima)
• Four-o-clock, Wild (Mirabilis nyctaginea)
• Foxglove, Fern-leaved False (Aureolaria pedicularia)
• Foxglove, Smooth False (Aureolaria flava)

G

• Galinsoga (Galinsoga quadriradiata)
• Galinsoga, Small-flowered (Galinsoga parviflora)
• Garlic, Canada (Allium canadense)
• Garlic, Field (Allium vineale)
• Gaura, Biennial (Oenothera gaura)
• Gentian, Fringe-tipped Closed (Gentiana andrewsii)
• Gentian, Greater Fringed (Gentianopsis crinita)
• Gentian, Island (Gentianopsis nesophila)
• Gentian, Purple-stemmed (Gentiana rubricaulis)
• Gentian, Stiff (Gentianella quinquefolia)
• Gerardia, Purple (Agalinis purpurea)
• Gerardia, Slender (Agalinis tenuifolia)
• Gerardia, Small-flowered (Agalinis paupercula)
• Germander, American (Teucrium canadense)
• Goatsbeard (Aruncus dioicus)
• Goatsbeard, Meadow (Tragopogon pratensis)
• Goatsbeard, Yellow (Tragopogon dubius)
• Goldenrod, Large-leaved (Solidago macrophylla)
• Goldenrod, Northern (Solidago multiradiata)
• Goldenrod, Ontario (Solidago ontarioensis)
• Goldenrod, Riddell's (Solidago riddellii)
• Goldenrod, Viscid Grass-leaved (Euthamia gymnospermoides)
• Goutweed (Aegopodium podagraria)
• Grape, Riverbank (Vitis riparia)
• Grape, Summer (Vitis aestivalis)
• Grass, Fall Witch (Digitaria cognata)
• Grass, Fowl Manna (Glyceria striata)
• Grass, Frank's Love (Eragrostis frankii)
• Grass, Great Lakes Sand Reed (Calamovilfa longifolia)
• Grass, Kentucky Blue (Poa pratensis)
• Grass, Mountain Rice (Oryzopsis asperifolia)
• Grass, Northern Manna (Glyceria borealis)
• Grass, Poverty (Aristida dichotoma)
• Grass, Poverty Oat (Danthonia spicata)
• Grass, Reed Canary (Phalaris arundinacea)
• Grass, Slender Satin (Muhlenbergia tenuiflora)
• Grass, Witch (Panicum capillare)
• Grass, Wood Blue (Poa nemoralis)
• Grass-of-Parnassus, Northern (Parnassia palustris)
• Grass-of-Parnassus, Small-flowered (Parnassia parviflora)
• Greenbrier, Bristly (Smilax tamnoides)
• Greenbrier, Common (Smilax rotundifolia)
• Gromwell, American (Lithospermum latifolium)
• Gromwell, Corn (Buglossoides arvensis)
• Gromwell, European (Lithospermum officinale)
• Groundnut (Apios americana)
• Groundsel, Common (Senecio vulgaris)
• Gum, Black (Nyassa sylvatica)

H

• Hackberry (Celtis occidentalis)
• Hackberry, Dwarf (Celtis tenuifolia)
• Hairgrass, Common (Deschampsia flexuosa)
• Hardhack (Spiraea tomentosa)
• Hawkweed, Canada (Hieracium canadense)
• Hawkweed, Common (Hieracium lachenalii)
• Hawkweed, Field (Hieracium caespitosum)
• Hawkweed, Mouse Ear (Pilosella officinarum)
• Hawkweed, Northern (Hieracium umbellatum)
• Hawkweed, Orange (Pilosella aurantiaca)
• Hawkweed, Rough (Hieracium scabrum)
• Hawkweed, Smooth (Hieracium piloselloides)
• Hawthorn, Dotted (Crataegus punctata)
• Hawthorn, Downy (Crataegus mollis)
• Hawthorn, English (Crataegus monogyna)
• Hawthorn, Long-spined (Crataegus succulenta)
• Hawthorn, Variable (Crataegus macrosperma)
• Hawthorn, Western (Crataegus douglasii)
• Hazel, American (Corylus americana)
• Hazel, Beaked (Corylus cornuta)
• Heal-all (Prunella vulgaris)
• Hedge Nettle, Common (Stachys tenuifolia)
• Hemp Nettle (Galeopsis tetrahit)
• Hemp, Indian (Apocynum cannabinum)
• Henbit (Lamium amplexicaule)
• Hickory, Pignut (Carya glabra)
• Hickory, Shagbark (Carya ovata)
• Hogweed, Giant (Heracleum mantegazzianum)
• Holly, American (Ilex opaca)
• Honeysuckle, Amur (Lonicera maackii)
• Honeysuckle, European Fly (Lonicera xylosteum)
• Honeysuckle, Glaucous (Lonicera dioica)
• Honeysuckle, Hairy (Lonicera hirsuta)
• Honeysuckle, Morrow's (Lonicera morrowii)
• Honeysuckle, Mountain Fly (Lonicera villosa)
• Honeysuckle, Swamp Fly (Lonicera oblongifolia)
• Honeysuckle, Tartarian (Lonicera tatarica)
• Hop, Common (Humulus lupulus)
• Horehound, American Water (Lycopus americanus)
• Horehound, Black (Ballota nigra)
• Horehound, European Water (Lycopus europaeus)
• Horse Balm (Collinsonia canadensis)
• Horsetail, Field (Equisetum arvense)
• Horsetail, Meadow (Equisetum pratense)
• Horsetail, Variegated (Equisetum variegatum)
• Horsetail, Water (Equisetum fluviatile)
• Horsetail, Woodland (Equisetum sylvaticum)
• Horseweed, Canada (Erigeron canadensis)
• Houstonia, Long-leaved (Houstonia longifolia)
• Huckleberry, Black (Gaylussacia baccata)
• Hydrangea, Wild (Hydrangea arborescens)
• Hyssop, Blue Giant (Agastache foeniculum)
• Hyssop, Purple Giant (Agastache scrophulariifolia)

I

• Indigo, Wild (Baptisia tinctoria)
• Ironwood (Ostrya virginiana)
• Ivy, Poison (Toxicodendron radicans)

J

• Jimsonweed (Datura stramonium)
• Johnny Jump-up (Viola tricolor)
• Juniper, Common (Juniperus communis)
• Juniper, Creeping (Juniperus horizontalis)

K

• Knapweed, Brown (Centaurea jacea)
• Knapweed, Spotted (Centaurea biebersteinii)
• Knapweed, Tyrol (Centaurea nigrescens)
• Knapweed, White-flowered (Centaurea diffusa)
• Knotgrass, Common (Polygonum aviculare)
• Knotweed, Pink (Polygonum pensylvanicum)
• Kochia, Common (Bassia scoparia)

L

• Lady's Mantle, Thin-stemmed (Alchemilla filicaulis)
• Lady's Slipper, Yellow (Cypripedium parviflorum)
• Lady's Thumb (Persicaria maculosa)
• Larch, Japanese (Larix leptolepis)
• Laurel, Bog (Kalmia polifolia)
• Laurel, Sheep (Kalmia angustifolia)
• Leadplant (Amorpha canescens)
• Leafcup, Small-flowered (Polymnia canadensis)
• Lettuce, Prickly (Lactuca serriola)
• Lettuce, Tall Blue (Lactuca biennis)
• Lettuce, Wild (Lactuca canadensis)
• Licorice, Lance-leaved Wild (Galium lanceolatum)
• Licorice, Wild (Galium circaezans)
• Lily, Day (Hemerocallis fulva)
• Lily, Sweet-scented Water (Nymphaea odorata)
• Lily, Yellow Day (Hemerocallis lilioasphodelus)
• Lily, Yellow Pond (Nuphar variegata)
• Lily-of-the-Valley (Convallaria majalis)
• Live-forever (Sedum purpureum)
• Lobelia, Kalm's (Lobelia kalmii)
• Lobelia, Spiked (Lobelia spicata)
• Lobelia, Water (Lobelia dortmanna)
• Loosestrife, Hyssop-leaved (Lythrum hyssopifolia)
• Loosestrife, Winged (Lythrum alatum)
• Loosestrife, Yellow Garden (Lysimachia punctata)
• Lotus, American (Nelumbo lutea)
• Lousewort, Swamp (Pedicularis lanceolata)
• Lovage, Scotch (Ligusticum scoticum)

M

• Madder, Wild (Galium mollugo)
• Mallow, Common (Malva neglecta)
• Mallow, Musk (Malva moschata)
• Mallow, Rose Swamp (Hibiscus moscheutos)
• Mallow, Virgina (Sida hermaphrodita)
• Maple, Mountain (Acer spicatum)
• Maple, Red (Acer rubrum)
• Maple, Silver (Acer saccharinum)
• Maple, Striped (Acer pensylvanicum)
• Marijuana (Cannabis sativa)
• Meadow Rue, Tall (Thalictrum pubescens)
• Meadowsweet, Broad-leaved (Spiraea latifolia)
• Meadowsweet, Narrow-leaved (Spiraea alba)
• Mercury, Common Three-seeded (Acalypha rhomboidea)
• Mermaid Weed (Proserpinaca palustris)
• Miami Mist (Phacelia purshii)
• Milkvetch, Alpine (Astragalus alpinus)
• Milkvetch, Cooper's (Astragalus neglectus)
• Milkweed, Four-leaved (Asclepias quadrifolia)
• Milkweed, Green (Asclepias viridiflora)
• Milkweed, Prairie (Asclepias hirtella)
• Milkweed, Sullivant's (Asclepias sullivantii)
• Milkwort, Purple (Polygala sanguinea)
• Milkwort, Racemed (Polygala polygama)
• Mint, Apple (Mentha suaveolens)
• Mint, Wild (Mentha arvensis)
• Mistletoe, Dwarf (Arceuthobium pusillum)
• Mock Orange (Philadelphus coronarius)
• Money Plant (Lunaria annua)
• Moneywort (Lysimachia nummularia)
• Moonwort, Common (Botrychium lunaria)
• Mooseberry (Viburnum edule)
• Morning Glory, Common (Ipomoea purpurea)
• Motherwort (Leonurus cardiaca)
• Mountain Ash, American (Sorbus americana)
• Mountain Ash, European (Sorbus aucuparia)
• Mountain Ash, Showy (Sorbus decora)
• Mountain Mint, Hoary (Pycnanthemum incanum)
• Mountain Mint, Narrow-leaved (Pycnanthemum tenuifolium)
• Mugwort (Artemisia vulgaris)
• Mulberry, Red (Morus rubra)
• Mulberry, White (Morus alba)
• Mullein, Clasping-leaved (Verbascum phlomoides)
• Mustard, Dog (Erucastrum gallicum)
• Mustard, Field (Brassica rapa)
• Mustard, Hedge (Sisymbrium officinale)
• Mustard, Indian (Brassica juncea)
• Mustard, Tower (Turritis glabra)
• Mustard, Tumble (Sisymbrium altissimum)
• Mustard, Wormseed (Erysimum cheiranthoides)

N

• Naiad, Brittle (Najas minor)
• Naiad, Slender (Najas flexilis)
• Nettle, False (Boehmeria cylindrica)
• Nettle, Stinging (Urtica dioica)
• Nettle, Tall (Urtica procera)
• Nettle, Wood (Laportea canadensis)
• Nightshade, Bittersweet (Solanum dulcamara)
• Nightshade, Dwarf Enchanter's (Circaea alpina)
• Nightshade, Eastern Black (Solanum ptychanthum)
• Ninebark (Physocarpus opulifolius)
• Nut Rush, Low (Scleria verticillata)

O

• Oak, Black (Quercus velutina)
• Oak, Bur (Quercus macrocarpa)
• Oak, English (Quercus robur)
• Oak, Pin (Quercus palustris)
• Oak, Red (Quercus rubra)
• Oak, Swamp White (Quercus bicolor)
• Oak, White (Quercus alba)
• Obedient Plant (Physostegia virginiana)
• Orach (Atriplex prostrata)
• Orange, Osage (Maclura pomifera)
• Orchid, Huron Green (Platanthera huronensis)
• Orchid, Large Purple-fringed (Platanthera grandiflora)
• Orchid, Tubercled (Platanthera flava)
• Oregano (Origanum vulgare)
• Outhouse Plant (Rudbeckia laciniata 'Hortensia')
• Oxtongue, Hawkweed (Picris hieracioides)
• Oxytrope, Newfoundland (Oxytropis campestris)
• Oxytrope, Pendant-pod (Oxytropis deflexa)

P

• Panic Grass, Deer-tongue (Dichanthelium clandestinum)
• Parsley, Chinese Hemlock (Conioselinum chinense)
• Parsley, Fool's (Aethusa cynapium)
• Parsnip, Cow (Heracleum maximum)
• Parsnip, Smooth Meadow (Thaspium trifoliatum)
• Parsnip, Wild (Pastinaca sativa)
• Pawpaw (Asimina triloba)
• Pea, Everlasting (Lathyrus latifolius)
• Peanut, Hog (Amphicarpaea bracteata)
• Pear, Common (Pyrus communis)
• Pearlwort, Knotted (Sagina nodosa)
• Pennycress, Field (Thlaspi arvense)
• Pennyroyal, American (Hedeoma pulegioides)
• Pennywort, Water (Hydrocotyle americana)
• Peppergrass, Field (Lepidium campestre)
• Peppermint (Mentha X piperita)
• Phlox, Garden (Phlox paniculata)
• Phlox, Wild Blue (Phlox divaricata)
• Pigweed, Winged (Cycloloma atriplicifolium)
• Pilewort (Erechtites hieraciifolius)
• Pimpernel, Scarlet (Lysimachia arvensis)
• Pimpernel, Water (Samolus parviflorus)
• Pineapple Weed (Matricaria discoidea)
• Pink, Deptford (Dianthus armeria)
• Pink, Fire (Silene virginica)
• Pinweed, Intermediate (Lechea intermedia)
• Pipewort, Common (Eriocaulon aquaticum)
• Pitcher Plant (Sarracenia purpurea)
• Plane Tree, London (Platanus x acerifolia)
• Plantain, Common (Plantago major)
• Plantain, English (Plantago lanceolata)
• Plantain, Hoary (Plantago media)
• Plantain, Red-stemmed (Plantago rugelii)
• Plantain, Seaside (Plantago maritima)
• Plantain, Tuberous Indian (Arnoglossum plantagineum)
• Plum, American (Prunus americana)
• Polypody, Appalachian (Polypodium appalachianum)
• Pondweed, Floating-leaved (Potamogeton natans)
• Pondweed, Grass-like (Potamogeton gramineus)
• Pondweed, Ribbon-leaved (Potamogeton epihydrus)
• Pondweed, Richardson's (Potamogeton richardsonii)
• Poplar, Balsam (Populus balsamifera)
• Poplar, Carolina (Populus X canadensis)
• Poplar, European White (Populus alba)
• Primrose, Common Evening (Oenothera biennis)
• Primrose, Cross-shaped Evening (Oenothera cruciata)
• Primrose, Cut-leaved Evening (Oenothera laciniata)
• Purslane, Water (Ludwigia palustris)
• Pussytoes, Alpine (Antennaria alpina)
• Pussytoes, Howell's (Antennaria howellii)
• Puttyroot (Aplectrum hyemale)
• Pyrola, Pink (Pyrola asarifolia)
• Pyrola, Round-leaved (Pyrola americana)

R

• Ragweed, Common (Ambrosia artemisiifolia)
• Ragweed, Great (Ambrosia trifida)
• Ragwort, Balsam (Packera paupercula)
• Ragwort, Golden (Packera aurea)
• Ragwort, Round-leaved (Packera obovata)
• Ragwort, Tansy (Jacobaea vulgaris)
• Raspberry, Dwarf (Rubus pubescens)
• Rattle, Yellow (Rhinanthus minor)
• Rattlesnake Plantain, Checkered (Goodyera tesselata)
• Rhodora (Rhododendron canadense)
• Rocket, Sea (Cakile edentula)
• Rocket, Slender-leaved Wall (Diplotaxis tenuifolia)
• Rocket, Stinking Wall (Diplotaxis muralis)
• Rose, Multiflora (Rosa multiflora)
• Rose, Rugosa (Rosa rugosa)
• Rose, Scotch (Rosa pimpenefolia)
• Rose, Shining (Rosa nitida)
• Rose, Smooth Wild (Rosa blanda)
• Rose, Virginia (Rosa virginiana)
• Rosebay, Lapland (Rhododendron lapponicum)
• Rush, Canada (Juncus canadensis)
• Rush, Chair-maker's (Schoenoplectus pungens)
• Rush, Dudley's (Juncus dudleyi)
• Rush, Jointed (Juncus articulatus)
• Rush, Path (Juncus tenuis)
• Rush, Toad (Juncus bufonius)
• Rush, Twig (Cladium mariscoides)

S

• Sandgrass, Purple (Triplasis purpurea)
• Sandwort, Grove (Moehringia lateriflora)
• Sandwort, Seabeach (Honckenya peploides)
• Sarsaparilla (Aralia nudicaulis)
• Sarsaparilla, Bristly (Aralia hispida)
• Sassafras (Sassafras albidum)
• Saxifrage, Alpine (Saxifraga paniculata)
• Saxifrage, Purple Mountain (Saxifraga oppositifolia)
• Saxifrage, Yellow Mountain (Saxifraga aizoides)
• Scorpion Grass (Myosotis virginiana)
• Scouring Rush, Common (Equisetum hyemale)
• Scouring Rush, Dwarf (Equisetum scirpoides)
• Sedge, Aquatic (Carex aquatilis)
• Sedge, Awl-fruited (Carex stipata)
• Sedge, Beaked (Carex utriculata)
• Sedge, Bebb's (Carex bebbii)
• Sedge, Blue Ridge (Carex lucorum)
• Sedge, Bristle-leaved (Carex eburnea)
• Sedge, Bristle-stalked (Carex leptalea)
• Sedge, Bristly (Carex comosa)
• Sedge, Broad-leaved (Carex platyphylla)
• Sedge, Broom (Carex scoparia)
• Sedge, Brown Umbrella (Cyperus fuscus)
• Sedge, Burreed (Carex sparganioides)
• Sedge, Buxbaum's (Carex buxbaumii)
• Sedge, Chestnut (Carex castanea)
• Sedge, Clustered (Carex cumulata)
• Sedge, Crested (Carex cristatella)
• Sedge, Deflexed Bottle-brush (Carex retrorsa)
• Sedge, Dewey's (Carex deweyana)
• Sedge, Drooping Wood (Carex arctata)
• Sedge, Fen Star (Carex sterilis)
• Sedge, Few-Seeded (Carex oligosperma)
• Sedge, Fibrous Rooted (Carex communis)
• Sedge, Fox (Carex vulpinoidea)
• Sedge, Fringed (Carex crinita)
• Sedge, Graceful (Carex gracillima)
• Sedge, Green Bog (Carex brunnescens)
• Sedge, Greenish (Carex viridula)
• Sedge, Hop (Carex lupulina)
• Sedge, Inland (Carex interior)
• Sedge, Lake Huron Single-spike (Carex scirpoidea)
• Sedge, Limestone Meadow (Carex granularis)
• Sedge, Loose-headed Oval (Carex projecta)
• Sedge, Mace (Carex grayi)
• Sedge, Mud (Carex limosa)
• Sedge, Muskingum (Carex muskingumensis)
• Sedge, Oval-headed (Carex cephalophora)
• Sedge, Pennsylvania (Carex pensylvanica)
• Sedge, Porcupine (Carex hystericina)
• Sedge, Prickly (Carex echinata)
• Sedge, Richardson's (Carex richardsonii)
• Sedge, Rough (Carex scabrata)
• Sedge, Rush-like (Carex scirpoidea)
• Sedge, Slender (Carex lasiocarpa)
• Sedge, Spiked (Carex spicata)
• Sedge, Sprengel's (Carex sprengelii)
• Sedge, Three-fruited (Carex trisperma)
• Sedge, Tussock (Carex stricta)
• Sedge, Two-seeded (Carex disperma)
• Sedge, Weak-stemmed (Carex laxiculmis)
• Sedge, Woolly (Carex pellita)
• Sedge, Yellow (Carex flava)
• Serviceberry, Dwarf (Amelanchier spicata)
• Serviceberry, Round-leaved (Amelanchier sanguinea)
• Sicklepod (Borodinia canadensis)
• Silverberry (Elaeagnus commutata)
• Skullcap, Mad-dog (Scutellaria lateriflora)
• Skullcap, Marsh (Scutellaria galericulata)
• Skullcap, Small (Scutellaria parvula)
• Smartweed, Carey's (Persicaria careyi)
• Smartweed, Common (Persicaria hydropiper)
• Smartweed, Nodding (Persicaria lapathifolia)
• Smartweed, Swamp (Ploygonum coccineum)
• Smartweed, Water (Polygonum amphibium)
• Smoke Tree (Cotinus coggygria)
• Snakeroot, Black (Sanicula marilandica)
• Snakeroot, Black (Sanicula odorata)
• Snakeroot, Long-fruited (Sanicula trifoliata)
• Snakeroot, White (Ageratina altissima)
• Sneezewort (Achillea ptarmica)
• Snowberry (Symphoricarpos albus)
• Solomon's Seal, Smooth (Polygonatum biflorum)
• Solomon's Seal, Three-leaved (Maianthemum trifolium)
• Sorrel, Sheep (Rumex acetosella)
• Sorrel, Yellow Wood (Oxalis stricta)
• Spearmint (Mentha spicata)
• Spearwort, Creeping (Ranunculus flammula)
• Speedwell, Wayside (Veronica polita)
• Spiderwort, Ohio (Tradescantia ohiensis)
• Spiderwort, Virginia (Tradescantia virginiana)
• Spikemoss, Meadow (Selaginella eclipes)
• Spikemoss, Northern (Salaginella selaginoides)
• Spikenard (Aralia racemosa)
• Spikerush, Flat-stemmed (Eleocharis compressa)
• Spikerush, Least (Eleocharis acicularis)
• Spruce, Black (Picea mariana)
• Spruce, Colorado (Picea pungens)
• Spruce, Red (Picea rubens)
• Spruce, White (Picea glauca)
• Spurge, Leafy (Euphorbia esula)
• Spurge, Mat (Euphorbia glyptosperma)
• Spurge, Nodding (Euphorbia nutans)
• Spurge, Petty (Euphorbia peplus)
• Spurge, Seaside (Euphorbia polygonifolia)
• Spurge, Toothed (Euphorbia dentata)
• St Johnswort, Canada (Hypericum canadense)
• St Johnswort, Common (Hypericum perforatum)
• St Johnswort, Dwarf (Hypericum mutilum)
• St Johnswort, Great (Hypericum ascyron)
• St Johnswort, Marsh (Hypericum virginicum)
• St Johnswort, Northern (Hypericum boreale)
• St Johnswort, Spotted (Hypericum punctatum)
• Stickseed, European (Lappula squarrosa)
• Stickseed, Virginia (Hackelia virginiana)
• Stitchwort, Fleshy (Stellaria crassifolia)
• Stitchwort, Lesser (Stellaria graminea)
• Stitchwort, Long-leaved (Stellaria longifolia)
• Stitchwort, Reddish (Sabulina rubella)
• Stonecrop, Ditch (Penthorum sedoides)
• Stonecrop, Two Row (Sedum spurium)
• Stonecrop, White (Sedum album)
• Stonecrop, Wild (Sedum ternatum)
• Storksbill (Erodium cicutarium)
• Strawberry Bush, Running (Euonymus obovatus)
• Sumac, Shining (Rhus copallinum)
• Sumac, Smooth (Rhus glabra)
• Sumac, Staghorn (Rhus typhina)
• Sundrops (Oenothera fruticosa)
• Sundrops, Small (Oenothera perennis)
• Sunflower, Common (Helianthus annuus)
• Sunflower, Pale-leaved (Helianthus strumosus)
• Sunflower, Tickseed (Bidens trichosperma)
• Sweetbrier (Rosa rubiginosa)
• Sweetgum (Liquidambar styraciflua)
• Sweetvetch, Alpine (Hedysarum alpinum)

T

• Tansy, Lake Huron (Tanacetum bipinnatum)
• Tape Grass (Vallisneria americana)
• Tea, Labrador (Rhododendron groenlandicum)
• Tea, New Jersey (Ceanothus americanus)
• Thimbleberry (Rubus parviflorus)
• Thistle, Common Sow (Sonchus oleraceus)
• Thistle, Field Sow (Sonchus arvensis)
• Thistle, Plumeless (Carduus acanthoides)
• Thistle, Scotch (Onopordum acanthium)
• Thistle, Spiny-leaved Sow (Sonchus asper)
• Thistle, Swamp (Cirsium muticum)
• Thrift (Armeria maritima)
• Tick Trefoil, Large-bracted (Desmodium cuspidatum)
• Tick Trefoil, Panicled (Desmodium paniculatum)
• Tick Trefoil, Pointed-leaved (Hylodesmum glutinosum)
• Toadflax, Bastard (Comandra umbellata)
• Tobacco, Wild (Nicotiana rustica)
• Tofieldia, Small (Tofieldia pusilla)
• Toothwort, Common (Cardamine diphylla)
• Toothwort, Cut-leaved (Cardamine concatenata)
• Touch-me-not, Spotted (Impatiens capensis)

V

• Valerian, Garden (Valeriana officinalis)
• Valerian, Greek (Polemonium reptans)
• Velvet Bells (Bartsia alpina)
• Vervain, Narrow-leaved (Verbena simplex)
• Vervain, Purpletop (Verbena bonariensis)
• Vervain, White (Verbena urticifolia)
• Vetch, Cow (Vicia cracca)
• Vetch, Crown (Securigera varia)
• Vetch, Hairy (Vicia villosa)
• Vetch, Kidney (Anthyllis vulneraria)
• Vetch, Slender (Vicia tetrasperma)
• Vetch, Spring (Vicia sativa)
• Vetch, Wood (Vicia caroliniana)
• Viburnum, Maple-leaved (Viburnum acerifolium)
• Violet, Lance-leaved (Viola lanceolata)
• Violet, LeConte's (Viola affinis)
• Violet, Sweet Blue (Viola odorata)

W

• Water Milfoil, Bracted (Myriophyllum verticcillatum)
• Water Milfoil, Northern (Myriophyllum sibiricum)
• Water Plantain, Large (Alisma triviale)
• Water Plantain, Small (Alisma subcordatum)
• Watercress (Nasturtium officinale)
• Waterleaf, Appendaged (Hydrophyllum appendiculatum)
• Waterweed, Common (Elodea canadensis)
• Wayfaring Tree (Viburnum lantana)
• Whitebeam, Swedish (Sorbus intermedia)
• Whitlow Grass, Hoary (Draba incana)
• Willow Herb, Great Hairy (Epilobium hirsutum)
• Willow Herb, Narrow-leaved (Epilobium leptophyllum)
• Willow Herb, Northern (Epilobium ciliatum)
• Willow Herb, Purple-leaved (Epilobium coloratum)
• Willow Herb, Sparse-flowered (Epilobium parviflorum)
• Willow, Autumn (Salix serissima)
• Willow, Blue-leaved (Salix myricoides)
• Willow, Grey-leaved (Salix glauca)
• Willow, Hairy (Salix vestita)
• Willow, Slender (Salix petiolaris)
• Willow, White (Salix alba)
• Wingstem (Verbesina alternifolia)
• Wolfberry (Symphoricarpos occidentalis)
• Woodsia, Rusty (Woodsia ilvensis)
• Wormwood, Beach (Artemisia stelleriana)
• Wormwood, Sweet (Artemisia annua)
• Wormwood, Tall (Artemisia campestris)

Y

• Yam, Wild (Dioscorea villosa)
• Yellow-eyed Grass, Carolina (Xyris difformis)

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