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Families: 124
Genera: 500
Species: 1148 (species rank)
Total Taxa: 1228 (including subsp. and var.)

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Cyperus odoratus L. - rusty flat sedge
Cyperus squarrosus L. - bearded flat sedge
Cyperus strigosus L. - straw-colored cyperus
Eleocharis compressa var. compressa - flat-stemmed spike-rush
Eleocharis elliptica Kunth - elliptic spike-rush
Rhynchospora alba (L.) Vahl - white beak-rush
Rhynchospora capillacea Torr. - needle beak sedge
Schoenoplectus pungens (Vahl) Palla - common three-square bulrush
Scirpus atrovirens Willd. - dark-green bulrush
Scirpus hattorianus Makino - mosquito bulrush
Scirpus pendulus Muhl. - rufous bulrush
Drosera intermedia Hayne - spoon-leaf sundew
Drosera rotundifolia L. - round-leaved sundew
Cystopteris bulbifera (L.) Bernh. - bulblet fragile fern
Cystopteris tenuis (Michx.) Desv. - upland brittle bladder fern
Onoclea sensibilis L. - sensitive fern
Shepherdia canadensis (L.) Nutt. - russet buffalo-berry
Equisetum arvense L. - field horsetail
Equisetum fluviatile L. - water horsetail
Equisetum laevigatum A.Braun - smooth scouring rush
Equisetum variegatum subsp. variegatum - variegated scouring rush
Monotropa uniflora L. - Indian-pipe
Pyrola elliptica Nutt. - wax-flower shin-leaf
Vaccinium angustifolium Aiton - low sweet blueberry
Vaccinium macrocarpon Aiton - large cranberry
Vaccinium myrtilloides Michx. - velvet-leaf huckleberry
Vaccinium oxycoccos L. - small cranberry
Euphorbia corollata L. - flowering spurge
Euphorbia cyparissias L. - graveyard spurge
Euphorbia davidii Subils - David's spurge
Euphorbia dentata Michx. - toothed spurge
Euphorbia nutans Lag. - nodding spurge
Euphorbia vermiculata Raf. - worm-seed sand-mat
Baptisia lactea (Raf.) Thieret - white wild indigo
Baptisia leucophaea Nutt. - plains wild indigo
Dalea purpurea - violet prairie-clover
Dalea purpurea var. purpurea - violet prairie-clover
Desmodium canadense (L.) DC. - showy tick-trefoil
Desmodium illinoense A.Gray - prairie tick-trefoil
Lathyrus palustris L. - slender-stem pea-vine
Lespedeza capitata Michx. - round-headed lespedeza
Lotus corniculatus L. - bird's-foot trefoil
Lupinus perennis L. - wild lupine
Medicago lupulina L. - black medick
Melilotus albus Medik. - white sweet-clover
Melilotus altissimus Thuill. - tall yellow 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
Vicia americana - American vetch
Vicia villosa Roth - winter vetch
Quercus alba L. - white oak
Quercus bicolor Willd. - swamp white oak
Quercus rubra L. - northern red oak
Gentiana andrewsii var. andrewsii - prairie closed gentian
Gentianopsis crinita (Froel.) Ma - greater fringed gentian
Gentianopsis virgata (Raf.) Holub - small fringed gentian
Geranium columbinum L. - long-stalked crane's-bill
Geranium maculatum L. - wild geranium
Ribes americanum Mill. - wild black currant
Ribes cynosbati L. - prickly wild gooseberry
Ribes hirtellum Michx. - swamp 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
Elodea canadensis Michx. - common waterweed
Najas marina L. - spiny naiad
Hypericum perforatum L. - St. John's-wort
Hypericum punctatum Lam. - spotted St. John's-wort
Triadenum fraseri (Spach) Gleason - Fraser's marsh St. John's-wort
Iris pseudacorus L. - yellow water iris
Sisyrinchium angustifolium Mill. - stout blue-eyed-grass
Sisyrinchium campestre E.P.Bicknell - prairie blue-eyed-grass
Carya ovata var. ovata - shellbark hickory
Juglans cinerea L. - white walnut
Juglans nigra L. - black walnut
Juncus alpinoarticulatus Chaix - northern green rush
Juncus bufonius L. - toad rush
Juncus dudleyi Wiegand - Dudley's rush
Juncus effusus L. - soft rush
Juncus gerardii Loisel. - salt-meadow rush
Juncus nodosus L. - knotted rush
Juncus tenuis Willd. - roadside rush
Juncus torreyi Coville - Torrey's rush
Triglochin maritima L. - seaside arrow-grass
Triglochin palustris L. - slender bog arrow-grass
Agastache nepetoides (L.) Kuntze - yellow giant hyssop
Ballota nigra L. - black horehound
Hedeoma hispida Pursh - rough pennyroyal
Hedeoma pulegioides (L.) Pers. - American pennyroyal
Lycopus uniflorus Michx. - northern water-horehound
Mentha aquatica L. - water mint
Monarda fistulosa - wild bergamot
Ocimum basilicum L. - sweet basil
Salvia pratensis L. - meadow sage
Scutellaria lateriflora L. - mad-dog skullcap
Scutellaria ovata subsp. ovata - heart-leaved skullcap
Stachys arenicola Britton - marsh hedge-nettle
Utricularia intermedia Hayne - northern bladderwort
Utricularia vulgaris L. - great bladderwort
Erythronium albidum Nutt. - white trout-lily
Lilium michiganense Farw. - Turk's-cap lily
Linum sulcatum Riddell - grooved yellow flax
Lindernia dubia (L.) Pennell - moist bank pimpernel
Lycopodium clavatum L. - staghorn club-moss
Lythrum salicaria L. - spiked loosestrife
Alcea rosea L. - hollyhock
Hibiscus trionum L. - flower-of-an-hour
Malva moschata L. - musk mallow
Malva neglecta Wallr. - common mallow
Trillium cernuum L. - whip-poor-will flower
Trillium flexipes Raf. - nodding wake-robin
Menispermum canadense L. - common moonseed
Menyanthes trifoliata L. - common buckbean
Mollugo verticillata L. - Indian chickweed
Claytonia virginica L. - Virginia spring-beauty
Morus alba L. - white mulberry
Nuphar variegata Durand - bull-head pond-lily
Syringa vulgaris L. - common lilac
Syringa X persica L. - Persian lilac
Circaea alpina subsp. alpina - alpine 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
Ludwigia polycarpa Short & R.Peter - top-pod water-primrose
Oenothera biennis L. - common evening-primrose
Oenothera parviflora L. - small-flowered evening-primrose
Oenothera perennis L. - small sundrops
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
Platanthera huronensis (Nutt.) Lindl. - tall nothern bog orchid
Spiranthes cernua (L.) Rich. - nodding lady's-tresses
Spiranthes magnicamporum Sheviak - Great Plains lady's-tresses
Spiranthes romanzoffiana Cham. - hooded lady's-tresses
Agalinis paupercula (A.Gray) Britton - smooth false foxglove
Agalinis tenuifolia (Vahl) Raf. - common false foxglove
Aureolaria grandiflora var. pulchra Pennell - large-flowered yellow false foxglove
Castilleja coccinea (L.) Spreng. - scarlet painted-cup
Osmunda cinnamomea L. - cinnamon fern
Osmunda claytoniana L. - interrupted fern
Oxalis dillenii Jacq. - southern yellow wood-sorrel
Oxalis stricta L. - tall wood-sorrel
Oxalis violacea L. - violet wood-sorrel
Dicentra cucullaria (L.) Bernh. - Dutchman's-breeches
Papaver orientale L. - Oriental poppy
Penthorum sedoides L. - ditch stonecrop
Phryma leptostachya L. - American lop-seed
Pinus strobus L. - eastern white pine
Antirrhinum majus L. - garden snapdragon
Chelone glabra L. - white turtlehead
Linaria vulgaris Mill. - butter-and-eggs
Penstemon hirsutus (L.) Willd. - northeastern beard-tongue
Plantago rugelii Decne. - red-stalked plantain
Veronica arvensis L. - corn speedwell
Veronica peregrina L. - purslane speedwell
Veronica scutellata L. - skullcap speedwell
Veronica serpyllifolia L. - thyme-leaved speedwell
Agrostis stolonifera L. - creeping tickle grass
Alopecurus aequalis Sobol. - short-awned foxtail
Alopecurus pratensis L. - meadow foxtail
Aristida basiramea Engelm. ex Vasey - fork-tip three-awn grass
Aristida oligantha Michx. - plains three-awn grass
Avena fatua L. - wild oats
Bromus ciliatus L. - fringed brome
Bromus inermis Leyss. - smooth brome
Bromus kalmii A.Gray - prairie brome
Bromus pubescens Muhl. ex Willd. - hairy woodland brome
Bromus squarrosus L. - squarrose brome
Bromus tectorum L. - June grass
Cinna arundinacea L. - stout wood-reed
Crypsis schoenoides (L.) Lam. - swamp pickle grass
Dactylis glomerata L. - orchard grass
Dichanthelium latifolium (L.) Harvill - broad-leaved panic grass
Dichanthelium perlongum (Nash) Freckmann - long-stalked panic grass
Elymus canadensis L. - Great Plains wild-rye
Elymus hystrix L. - glumeless wild-rye
Elymus hystrix var. hystrix - glumeless wild-rye
Eragrostis minor Host - little love grass
Festuca paradoxa Desv. - cluster fescue
Festuca rubra L. - red fescue
Glyceria borealis (Nash) Batch. - boreal manna grass
Glyceria grandis S.Watson - reed manna grass
Glyceria septentrionalis Hitchc. - northern manna grass
Hordeum jubatum L. - squirrel-tail grass
Hordeum vulgare L. - common barley
Lolium perenne L. - perennial rye grass
Lolium perenne subsp. perenne - perennial rye grass
Milium effusum L. - wood millet
Panicum miliaceum L. - wild proso 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
Poa trivialis L. - rough bluegrass
Puccinellia distans (Jacq.) Parl. - weeping alkali grass
Setaria faberi R.A.W.Herrm. - nodding foxtail
Setaria verticillata (L.) P.Beauv. - hooked bristle grass
Sorghastrum nutans (L.) Nash - yellow Indian grass
Sporobolus neglectus Nash - small drop-seed
Zizania aquatica L. - southern wild rice
Collomia linearis Nutt. - narrow-leaved mountain trumpet
Phlox paniculata L. - summer phlox
Phlox pilosa L. - prairie phlox
Polemonium reptans var. reptans - spreading Jacob's-ladder
Polygala senega L. - senega root
Fagopyrum esculentum Moench - common buckwheat
Fallopia scandens (L.) Holub - climbing false buckwheat
Persicaria maculosa Gray - spotted lady's-thumb
Polygonum achoreum S.F.Blake - Blake's knotweed
Polygonum ramosissimum - bushy knotweed
Rumex acetosella L. - sheep sorrel
Rumex britannica L. - British dock
Rumex crispus L. - yellow dock
Rumex obtusifolius L. - bitter dock
Potamogeton amplifolius Tuck. - large-leaved pondweed
Potamogeton crispus L. - curly pondweed
Potamogeton friesii Rupr. - Fries's pondweed
Potamogeton gramineus L. - variable-leaved pondweed
Potamogeton illinoensis Morong - Illinois pondweed
Potamogeton natans L. - floating-leaf pondweed