Authors: Isaac Dopp
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Families: 119
Genera: 392
Species: 810 (species rank)
Total Taxa: 869 (including subsp. and var.)

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Circaea canadensis subsp. canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Epilobium coloratum Biehler - eastern willow-herb
Epilobium leptophyllum Raf. - fen willow-herb
Epilobium palustre L. - marsh willow-herb
Oenothera biennis L. - common evening-primrose
Oenothera parviflora L. - small-flowered evening-primrose
Oenothera villosa subsp. villosa - hairy evening-primrose
Botrychium simplex E.Hitchc. - small grape fern
Ophioglossum pusillum Raf. - northern adder's-tongue
Arethusa bulbosa L. - swamp-pink
Cypripedium acaule Aiton - small pink lady's-slipper
Cypripedium reginae Walter - showy lady's-slipper
Goodyera pubescens (Willd.) R.Br. - downy rattlesnake-plantain
Neottia cordata (L.) Rich. - heart-leaf twayblade
Platanthera clavellata (Michx.) Luer - small green fringed orchid
Platanthera huronensis (Nutt.) Lindl. - tall nothern bog orchid
Platanthera lacera (Michx.) G.Don - ragged fringed orchid
Platanthera orbiculata (Pursh) Lindl. - large round-leaved orchid
Platanthera psycodes (L.) Lindl. - lesser purple fringed orchid
Spiranthes cernua (L.) Rich. - nodding lady's-tresses
Spiranthes lacera var. lacera - northern slender lady's-tresses
Agalinis paupercula (A.Gray) Britton - smooth false foxglove
Agalinis tenuifolia (Vahl) Raf. - common false foxglove
Castilleja coccinea (L.) Spreng. - scarlet painted-cup
Osmunda cinnamomea L. - cinnamon fern
Osmunda claytoniana L. - interrupted fern
Oxalis stricta L. - tall wood-sorrel
Penthorum sedoides L. - ditch stonecrop
Phryma leptostachya L. - American lop-seed
Pinus strobus L. - eastern white pine
Callitriche palustris L. - vernal water-starwort
Gratiola neglecta Torr. - clammy hedge-hyssop
Linaria vulgaris Mill. - butter-and-eggs
Penstemon gracilis Nutt. - slender beard-tongue
Penstemon grandiflorus Nutt. - large-flowered beard-tongue
Penstemon pallidus Small - pale beard-tongue
Penstemon tubaeflorus Nutt. - white wand beard-tongue
Plantago patagonica Jacq. - woolly plantain
Plantago rugelii Decne. - Rugel's plantain
Veronica verna L. - spring speedwell
Alopecurus aequalis Sobol. - short-awned foxtail
Aristida basiramea Engelm. ex Vasey - fork-tip three-awn grass
Bromus ciliatus L. - fringed brome
Bromus inermis Leyss. - smooth brome
Bromus kalmii A.Gray - prairie brome
Bromus tectorum L. - June grass
Calamagrostis stricta (Timm) Koeler - slim-stem small reed grass
Dichanthelium latifolium (L.) Harvill - broad-leaved panic grass
Dichanthelium linearifolium (Scribn.) Gould - slender-leaved panic grass
Elymus canadensis L. - Great Plains wild-rye
Elymus curvatus Piper - awnless wild-rye
Elymus diversiglumis Scribn. & Ball - unequal-glumed wild-rye
Elymus hystrix var. hystrix - glumeless wild-rye
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
Muhlenbergia uniflora (Muhl.) Fernald - one-flowered satin grass
Panicum virgatum L. - switch grass
Phalaris arundinacea L. - reed canary grass
Poa alsodes A.Gray - woodland bluegrass
Poa compressa L. - wiregrass
Poa nemoralis L. - wood bluegrass
Poa paludigena Fernald & Wiegand - Patterson's bluegrass
Poa palustris L. - marsh bluegrass
Poa pratensis L. - Kentucky bluegrass
Setaria verticillata (L.) P.Beauv. - hooked bristle grass
Sorghastrum nutans (L.) Nash - yellow Indian grass
Zizania aquatica L. - southern wild rice
Zizania palustris L. - northern wild rice
Phlox pilosa L. - prairie phlox
Polygala sanguinea L. - purple milkwort
Fallopia scandens (L.) Holub - climbing false buckwheat
Persicaria arifolia (L.) Haraldson - Halberd-leaf tearthumb
Persicaria maculosa Gray - spotted lady's-thumb
Polygonum achoreum S.F.Blake - Blake's knotweed
Polygonum tenue Michx. - slender knotweed
Rumex acetosella L. - sheep sorrel
Rumex britannica L. - British dock
Pontederia cordata L. - pickerel-weed
Potamogeton amplifolius Tuck. - large-leaved pondweed
Potamogeton bicupulatus Fernald - snail-seed pondweed
Potamogeton confervoides Rchb. - Tuckerman's pondweed
Potamogeton crispus L. - curly pondweed
Potamogeton diversifolius Raf. - water-thread pondweed
Potamogeton epihydrus Raf. - ribbon-leaved pondweed
Potamogeton friesii Rupr. - Fries's pondweed
Potamogeton gramineus L. - variable-leaved pondweed
Potamogeton illinoensis Morong - Illinois pondweed
Potamogeton natans L. - floating-leaf pondweed
Potamogeton praelongus Wulfen - white-stemmed pondweed
Potamogeton pusillus L. - small pondweed
Potamogeton robbinsii Oakes - Robbins' pondweed
Potamogeton spirillus Tuck. - spiral-fruited pondweed
Potamogeton strictifolius A.Benn. - straight-leaved pondweed
Potamogeton zosteriformis Fernald - flat-stemmed pondweed
Lysimachia ciliata L. - fringed loosestrife
Lysimachia hybrida Michx. - river loosestrife
Lysimachia quadrifolia L. - whorled yellow loosestrife
Lysimachia thyrsiflora L. - tufted loosestrife
Trientalis borealis Raf. - American starflower
Adiantum pedatum L. - northern maidenhair fern
Anemone americana (DC.) H.Hara - round-lobed hepatica
Anemone canadensis L. - meadow anemone
Anemone virginiana L. - tall thimbleweed
Aquilegia canadensis L. - wild columbine
Caltha palustris L. - yellow marsh-marigold
Clematis virginiana L. - virgin's-bower
Coptis trifolia (L.) Salisb. - three-leaved gold-thread
Enemion biternatum Raf. - false rue anemone
Ranunculus abortivus L. - small-flowered buttercup
Ranunculus flammula L. - spearwort buttercup
Ranunculus pensylvanicus L.f. - Pennsylvania buttercup
Thalictrum dioicum L. - quicksilver-weed
Ceanothus herbaceus Raf. - prairie red-root
Rhamnus alnifolia L'Hér. - alder-leaf buckthorn
Agrimonia gryposepala Wallr. - tall hairy agrimony
Agrimonia striata Michx. - roadside agrimony
Amelanchier interior Nielsen - Wiegand's shadbush
Amelanchier sanguinea - round-leaved serviceberry
Comarum palustre L. - purple marshlocks
Drymocallis arguta (Pursh) Rydb. - prairie cinquefoil tall cinquefoil tall potentilla
Geum aleppicum Jacq. - yellow avens
Geum rivale L. - water avens
Potentilla argentea L. - silvery five-fingers
Potentilla norvegica L. - strawberry-weed
Potentilla recta L. - sulphur five-fingers
Potentilla simplex Michx. - old-field cinquefoil
Rosa blanda Aiton - meadow roae
Rosa carolina L. - pasture rose
Rubus flagellaris Willd. - rambling dewberry
Rubus pensilvanicus Poir. - Vicksburg blackberry
Rubus pubescens Raf. - dwarf red blackberry
Rubus setosus Bigelow - Wheeler's blackberry
Spiraea alba var. alba - white meadowsweet
Galium boreale L. - northern bedstraw
Galium lanceolatum Torr. - wild licorice
Galium tinctorium L. - stiff bedstraw
Galium triflorum Michx. - sweet-scented bedstraw
Houstonia longifolia Gaertn. - long-leaved bluets
Mitchella repens L. - partridgeberry
Zanthoxylum americanum Mill. - northern prickly-ash
Populus tremuloides Michx. - trembling aspen
Salix bebbiana Sarg. - long-beaked willow
Salix discolor Muhl. - pussy willow
Salix humilis Marshall - upland willow
Salix interior Rowlee - sandbar willow
Salix lucida Muhl. - shining willow
Salix nigra Marshall - black willow
Salix petiolaris Sm. - slender willow
Arceuthobium pusillum Peck - eastern dwarf mistletoe
Acer negundo L. - box elder
Acer nigrum F.Michx. - black maple
Acer saccharinum L. - soft maple
Acer spicatum Lam. - mountain maple
Heuchera richardsonii R.Br. - Richardson's alumroot
Mitella diphylla L. - two-leaf miterwort
Mitella nuda L. - small bishop's-cap
Verbascum thapsus L. - giant mullein
Smilax tamnoides L. - hellfetter
Leucophysalis grandiflora (Hook.) Rydb. - white-flowered ground-cherry
Physalis virginiana var. virginiana - Virginia ground-cherry
Solanum dulcamara L. - deadly nightshade
Solanum ptychanthum Dunal - West Indian nightshade
Solanum rostratum Dunal - buffalo-bur nightshade
Staphylea trifolia L. - American bladdernut
Taxus canadensis Marshall - ground-hemlock
Sparganium angustifolium Michx. - narrow-leaved bur-reed
Sparganium emersum Rehmann - narrow-leaved bur-reed
Typha angustifolia L. - narrow-leaved cat-tail
Typha latifolia L. - common cat-tail
Typha X glauca Godr. - white cat-tail
Ulmus americana L. - white elm
Boehmeria cylindrica (L.) Sw. - small-spike false nettle
Pilea pumila (L.) A.Gray - Canadian clearweed
Verbena bracteata Lag. & Rodr. - prostrate vervain
Verbena hastata L. - simpler's-joy
Verbena urticifolia L. - white vervain
Viola adunca Sm. - sand violet
Viola pedata L. - bird's-foot violet
Viola pedata f. rosea Sanders - bird's-foot violet
Viola pedatifida G.Don - prairie violet
Viola pubescens Aiton - yellow violet
Viola sagittata var. sagittata - arrow-leaved violet
Viola sororia Willd. - hairy wood violet
Viola tricolor L. - pansy violet
Vitis riparia Michx. - river bank grape
Xyris torta Sm. - slender yellow-eyed-grass