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Families: 96
Genera: 303
Species: 525 (species rank)
Total Taxa: 528 (including subsp. and var.)

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Sambucus racemosa - scarlet elderberry
Viburnum acerifolium L. - maple-leaved viburnum
Viburnum lentago L. - sheepberry
Viburnum trilobum Marshall - high-bush cranberry
Alisma sp. L. - Water-plantain
Alisma triviale Pursh - northern water-plantain
Sagittaria rigida Pursh - stiff arrow-head
Amaranthus albus L. - white amaranth
Amaranthus retroflexus L. - wild-beet amaranth
Atriplex patula L. - spear saltbush
Chenopodium glaucum var. glaucum - oak-leaved goosefoot
Chenopodium strictum Roth - late-flowering goosefoot
Salsola tragus L. - tumbleweed
Rhus typhina L. - staghorn sumac
Carum carvi L. - caraway
Cicuta bulbifera L. - bulblet water-hemlock
Cicuta maculata L. - spotted water-hemlock
Daucus carota L. - wild carrot
Heracleum maximum W.Bartram - American cow-parsnip
Osmorhiza longistylis (Torr.) DC. - smooth sweet cicely
Pastinaca sativa L. - wild parsnip
Polytaenia nuttallii DC. - prairie-parsley
Sanicula canadensis L. - Canadian sanicle
Sanicula marilandica L. - Maryland sanicle
Sium suave Walter - water-parsnip
Apocynum androsaemifolium L. - spreading dogbane
Asclepias verticillata L. - whorled milkweed
Arisaema triphyllum - Jack-in-the-pulpit
Calla palustris L. - wild calla
Lemna turionifera Landolt - Turion duckweed
Aralia nudicaulis L. - wild sarsaparilla
Aralia racemosa L. - life-of-man
Panax trifolius L. - groundnut
Asarum canadense L. - wild-ginger
Asparagus officinalis L. - garden asparagus
Maianthemum canadense var. canadense - wild lily-of-the-valley
Maianthemum racemosum - Solomon's-plume
Maianthemum stellatum (L.) Link - starry false Solomon's-seal
Ambrosia trifida L. - horse-cane
Antennaria neglecta Greene - field pussy-toes
Anthemis cotula L. - stinking-cotula
Artemisia biennis Willd. - biennial wormwood
Bidens cernua L. - nodding bur-marigold
Bidens frondosa L. - devil's beggar-ticks
Bidens trichosperma (Michx.) Britton - northern tickseed-sunflower
Bidens tripartita L. - swamp tickseed
Cirsium muticum Michx. - swamp thistle
Erigeron annuus (L.) Pers. - eastern daisy fleabane
Erigeron philadelphicus - Philadelphia daisy
Eurybia macrophylla (L.) Cass. - large-leaved aster
Euthamia graminifolia (L.) Nutt. - grass-leaved goldenrod
Helenium autumnale L. - common sneezeweed
Helianthus sp. L. - Sunflower
Helianthus annuus L. - garden sunflower
Helianthus decapetalus L. - thin-leaved sunflower
Helianthus giganteus L. - tall sunflower
Helianthus hirsutus Raf. - rough sunflower
Helianthus strumosus L. - rough-leaved sunflower
Helianthus tuberosus L. - woodland sunflower
Inula helenium L. - elecampane
Lactuca serriola L. - prickly lettuce
Packera aurea (L.) A.Löve & D.Löve - heart-leaved groundsel
Prenanthes alba L. - white rattlesnakeroot
Rudbeckia laciniata L. - wild golden-glow
Rudbeckia triloba var. triloba - three-lobed coneflower
Senecio vulgaris L. - common groundsel
Solidago canadensis L. - common goldenrod
Solidago flexicaulis L. - zigzag goldenrod
Solidago uliginosa Nutt. - northern bog goldenrod
Sonchus sp. L. - Sow-Thistle
Sonchus oleraceus L. - field sow-thistle
Tragopogon dubius Scop. - yellow salsify
Vernonia baldwinii Torr. - western ironweed
Xanthium strumarium L. - rough cocklebur
Impatiens capensis Meerb. - spotted touch-me-not
Impatiens pallida Nutt. - yellow touch-me-not
Berberis thunbergii DC. - Japanese barberry
Podophyllum peltatum L. - wild mandrake
Echium vulgare L. - viper's-bugloss
Hydrophyllum virginianum L. - Virginia waterleaf
Myosotis scorpioides L. - water scorpion-grass
Berteroa incana (L.) DC. - hoary-alyssum
Boechera stricta (Graham) Al-Shehbaz - Drummond's rock-cress
Cardamine douglassii Britton - purple spring-cress
Cardamine pensylvanica Muhl. ex Willd. - Pennsylvania bitter-cress
Erysimum cheiranthoides L. - worm-seed wallflower
Hesperis matronalis L. - dame's rocket
Rorippa palustris (L.) Besser - common yellow-cress
Thlaspi arvense L. - field pennycress
Campanula rapunculoides L. - rover bellflower
Lobelia inflata L. - Indian-tobacco
Celtis occidentalis L. - northern hackberry
Lonicera tatarica L. - Tartarian honeysuckle
Lonicera X bella Zabel - white-bell honeysuckle
Lonicera xylosteum L. - European fly honeysuckle
Triosteum aurantiacum var. aurantiacum - orange-fruit horse-gentian
Cerastium arvense L. - field mouse-ear chickweed
Cerastium fontanum - common mouse-ear chickweed
Silene latifolia Poir. - white cockle
Stellaria media (L.) Vill. - common chickweed
Celastrus scandens L. - climbing bittersweet
Uvularia grandiflora Sm. - large-flowered bellwort
Calystegia sepium (L.) R.Br. - hedge false bindweed
Cornus alternifolia L.f. - pagoda dogwood
Cornus rugosa Lam. - round-leaved dogwood
Cornus sericea L. - red osier dogwood
Thuja occidentalis L. - northern white-cedar
Carex albursina E.Sheld. - white bear sedge
Carex formosa Dewey - handsome sedge
Carex gracillima Schwein. - purple-sheathed graceful sedge
Carex intumescens Rudge - swollen sedge
Carex pellita Willd. - broad-leaved woolly sedge
Carex pensylvanica Lam. - Pennsylvania sedge
Carex pseudocyperus L. - false bristly sedge
Carex radiata (Wahlenb.) Small - straight-styled wood sedge
Carex retrorsa Schwein. - retrorse sedge
Carex sartwellii Dewey - Sartwell's sedge
Carex sparganioides Muhl. ex Willd. - loose-headed bracted sedge
Carex stricta Lam. - uptight sedge
Carex tuckermanii Dewey - Tuckerman's sedge
Carex woodii Dewey - Wood's stiff sedge
Cyperus odoratus L. - rusty flat sedge
Cyperus strigosus L. - straw-colored cyperus
Scirpus atrovirens Willd. - dark-green bulrush
Cystopteris bulbifera (L.) Bernh. - bulblet fragile fern
Cystopteris fragilis (L.) Bernh. - northern fragile fern
Onoclea sensibilis L. - sensitive fern
Equisetum arvense L. - field horsetail
Equisetum fluviatile L. - water horsetail
Monotropa uniflora L. - Indian-pipe
Euphorbia cyparissias L. - graveyard spurge
Euphorbia vermiculata Raf. - worm-seed sand-mat
Gymnocladus dioicus (L.) K.Koch - Kentucky coffee-tree
Lotus corniculatus L. - bird's-foot trefoil
Medicago lupulina L. - black medick
Melilotus albus Medik. - white sweet-clover
Melilotus officinalis (L.) Lam. - yellow sweet-clover
Securigera varia (L.) Lassen - purple crown-vetch
Trifolium campestre Schreb. - pinnate hop clover
Trifolium hybridum L. - alsike clover
Trifolium repens L. - white clover
Quercus alba L. - white oak
Quercus rubra L. - northern red oak
Gentiana andrewsii var. andrewsii - prairie closed gentian
Geranium maculatum L. - wild geranium
Ribes sp. L. - Gooseberry
Ribes americanum Mill. - wild black currant
Ribes cynosbati L. - prickly wild gooseberry
Ribes missouriense Nutt. - wild gooseberry
Ribes rubrum L. - garden red currant
Myriophyllum sibiricum Kom. - short-spike water-milfoil
Myriophyllum spicatum L. - spike water-milfoil
Hamamelis virginiana L. - American witch-hazel
Hypericum perforatum L. - St. John's-wort
Carya ovata var. ovata - shellbark hickory
Juglans cinerea L. - white walnut
Juncus dudleyi Wiegand - Dudley's rush
Lycopus asper Greene - rough water-horehound
Lycopus uniflorus Michx. - northern water-horehound
Pycnanthemum tenuifolium Schrad. - slender mountain mint
Scutellaria lateriflora L. - mad-dog skullcap
Erythronium albidum Nutt. - white trout-lily
Lythrum salicaria L. - spiked loosestrife
Hibiscus trionum L. - flower-of-an-hour
Malva alcea L. - Vervain mallow
Malva neglecta Wallr. - common mallow
Malva pusilla Sm. - low mallow
Trillium cernuum L. - whip-poor-will flower
Menispermum canadense L. - common moonseed
Claytonia virginica L. - Virginia spring-beauty
Circaea canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Circaea canadensis subsp. canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Epilobium coloratum Biehler - eastern willow-herb
Epilobium hirsutum L. - hairy willow-herb
Epilobium leptophyllum Raf. - fen willow-herb
Oenothera parviflora L. - small-flowered evening-primrose
Goodyera pubescens (Willd.) R.Br. - downy rattlesnake-plantain
Platanthera psycodes (L.) Lindl. - lesser purple fringed orchid
Osmunda cinnamomea L. - cinnamon fern
Osmunda claytoniana L. - interrupted fern
Oxalis stricta L. - tall wood-sorrel
Dicentra cucullaria (L.) Bernh. - Dutchman's-breeches
Penthorum sedoides L. - ditch stonecrop
Phryma leptostachya L. - American lop-seed
Pinus strobus L. - eastern white pine
Chelone glabra L. - white turtlehead
Linaria vulgaris Mill. - butter-and-eggs
Plantago rugelii Decne. - Rugel's plantain
Veronica serpyllifolia L. - thyme-leaved speedwell
Agrostis stolonifera L. - creeping tickle grass
Alopecurus pratensis L. - meadow foxtail
Avena fatua L. - wild oats
Bromus inermis Leyss. - smooth brome
Bromus tectorum L. - June grass
Cinna arundinacea L. - stout wood-reed
Elymus hystrix var. hystrix - glumeless wild-rye
Eragrostis minor Host - little love grass
Glyceria borealis (Nash) Batch. - boreal manna grass
Glyceria grandis S.Watson - reed manna grass
Hordeum jubatum L. - squirrel-tail grass
Hordeum vulgare L. - common barley
Milium effusum L. - wood millet
Panicum virgatum L. - switch grass
Phalaris arundinacea L. - reed canary grass
Poa annua L. - speargrass
Poa compressa L. - wiregrass
Poa palustris L. - marsh bluegrass
Poa pratensis L. - Kentucky bluegrass
Puccinellia distans (Jacq.) Parl. - weeping alkali grass
Setaria faberi R.A.W.Herrm. - nodding foxtail
Sporobolus neglectus Nash - small drop-seed
Zizania aquatica L. - southern wild rice
Persicaria maculosa Gray - spotted lady's-thumb
Polygonum achoreum S.F.Blake - Blake's knotweed
Polygonum ramosissimum - bushy knotweed
Rumex britannica L. - British dock
Rumex crispus L. - yellow dock
Potamogeton crispus L. - curly pondweed
Lysimachia ciliata L. - fringed loosestrife
Lysimachia thyrsiflora L. - tufted loosestrife
Trientalis borealis Raf. - American starflower
Adiantum pedatum L. - northern maidenhair fern
Actaea pachypoda Elliott - white baneberry
Anemone acutiloba (DC.) G.Lawson - sharp-lobed hepatica
Anemone canadensis L. - meadow anemone
Anemone quinquefolia - wood anemone
Anemone virginiana L. - tall thimbleweed
Aquilegia canadensis L. - wild columbine
Caltha palustris L. - yellow marsh-marigold
Clematis virginiana L. - virgin's-bower
Enemion biternatum Raf. - false rue anemone
Ranunculus abortivus L. - small-flowered buttercup
Ranunculus acris L. - tall buttercup
Ranunculus flabellaris Raf. - yellow water crowfoot
Ranunculus recurvatus - hooked buttercup
Ranunculus sceleratus L. - cursed crowfoot
Thalictrum dioicum L. - quicksilver-weed
Frangula alnus Mill. - glossy buckthorn
Rhamnus cathartica L. - European buckthorn
Amelanchier laevis Wiegand - smooth serviceberry
Amelanchier sanguinea - round-leaved serviceberry
Crataegus macrosperma Ashe - eastern hawthorn
Geum aleppicum Jacq. - yellow avens
Geum canadense Jacq. - white avens
Malus ioensis - prairie crabapple
Potentilla norvegica L. - strawberry-weed
Potentilla recta L. - sulphur five-fingers
Potentilla simplex Michx. - old-field cinquefoil
Prunus nigra Aiton - Canadian plum
Prunus virginiana - chokecherry
Rosa blanda Aiton - meadow roae
Rosa carolina L. - pasture rose
Rubus occidentalis L. - black raspberry
Rubus pubescens Raf. - dwarf red blackberry
Spiraea alba var. alba - white meadowsweet
Galium aparine L. - sticky-willy
Galium boreale L. - northern bedstraw
Galium triflorum Michx. - sweet-scented bedstraw
Houstonia longifolia Gaertn. - long-leaved bluets
Zanthoxylum americanum Mill. - northern prickly-ash
Populus tremuloides Michx. - trembling aspen
Salix amygdaloides Andersson - peach-leaved willow
Salix discolor Muhl. - pussy willow
Salix interior Rowlee - sandbar willow
Salix lucida Muhl. - shining willow
Salix petiolaris Sm. - slender willow
Acer negundo L. - box elder
Acer saccharinum L. - soft maple
Acer spicatum Lam. - mountain maple
Mitella diphylla L. - two-leaf miterwort
Mitella nuda L. - small bishop's-cap
Scrophularia lanceolata Pursh - lance-leaf figwort
Verbascum thapsus L. - giant mullein