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Families: 110
Genera: 393
Species: 800 (species rank)
Total Taxa: 814 (including subsp. and var.)

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Sambucus racemosa - scarlet elderberry
Viburnum acerifolium L. - maple-leaved viburnum
Viburnum lentago L. - sheepberry
Viburnum opulus L. - high-bush cranberry
Viburnum trilobum Marshall - high-bush cranberry
Alisma triviale Pursh - northern water-plantain
Sagittaria sp. L. - Arrowhead
Sagittaria cuneata E.Sheld. - arum-leaved arrow-head
Sagittaria graminea subsp. graminea - grass-leaved sagittaria
Amaranthus retroflexus L. - wild-beet amaranth
Celosia argentea L. - silver cock's-comb
Chenopodium simplex (Torr.) Raf. - maple-leaved goosefoot
Salsola tragus L. - tumbleweed
Rhus glabra L. - smooth sumac
Carum carvi L. - caraway
Cicuta bulbifera L. - bulblet water-hemlock
Cicuta maculata L. - spotted water-hemlock
Daucus carota L. - wild carrot
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
Zizia aptera (A.Gray) Fernald - heart-leaved meadow-parsnip
Apocynum androsaemifolium L. - spreading dogbane
Asclepias exaltata L. - tall milkweed
Asclepias incarnata - swamp milkweed
Asclepias lanuginosa Nutt. - woolly milkweed
Asclepias verticillata L. - whorled milkweed
Ilex verticillata (L.) A.Gray - common winterberry
Arisaema triphyllum - Jack-in-the-pulpit
Lemna minor L. - small duckweed
Lemna trisulca L. - star duckweed
Lemna turionifera Landolt - Turion duckweed
Wolffia columbiana H.Karst. - common water-meal
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 racemosum - Solomon's-plume
Maianthemum stellatum (L.) Link - starry false Solomon's-seal
Muscari botryoides (L.) Mill. - common grape-hyacinth
Ambrosia trifida L. - horse-cane
Antennaria neglecta Greene - field pussy-toes
Antennaria parlinii Fernald - plantain pussy-toes
Anthemis cotula L. - stinking-cotula
Artemisia abrotanum L. - southernwood
Bidens cernua L. - nodding bur-marigold
Bidens frondosa L. - devil's beggar-ticks
Bidens tripartita L. - swamp tickseed
Bidens vulgata Greene - tall beggar-ticks
Centaurea cyanus L. - cornflower
Cirsium muticum Michx. - swamp thistle
Crepis capillaris (L.) Wallr. - smooth hawk's-beard
Crepis setosa Haller f. - bristly hawk's-beard
Doellingeria umbellata (Mill.) Nees - tall flat-topped white aster
Erigeron annuus (L.) Pers. - eastern daisy fleabane
Eurybia furcata (E.S.Burgess) G.L.Nesom - midwestern white heart-leaved aster
Eurybia macrophylla (L.) Cass. - large-leaved aster
Euthamia graminifolia (L.) Nutt. - grass-leaved goldenrod
Eutrochium maculatum L. - spotted Joe-Pye-weed
Helenium autumnale L. - common sneezeweed
Helianthus decapetalus L. - thin-leaved sunflower
Helianthus divaricatus L. - woodland sunflower
Helianthus giganteus L. - tall sunflower
Helianthus strumosus L. - rough-leaved sunflower
Helianthus tuberosus L. - woodland sunflower
Hieracium caespitosum Dumort. - yellow king-devil
Hieracium umbellatum L. - northern hawkweed
Lactuca canadensis L. - wild lettuce
Lactuca serriola L. - prickly lettuce
Lapsana communis L. - nipplewort
Liatris aspera Michx. - rough gayfeather
Packera aurea (L.) A.Löve & D.Löve - heart-leaved groundsel
Polymnia canadensis L. - white-flowered leaf-cup
Prenanthes alba L. - white rattlesnakeroot
Prenanthes racemosa Michx. - purple rattlesnake-root
Ratibida pinnata (Vent.) Barnhart - pinnate prairie coneflower
Rudbeckia hirta - black-eyed Susan
Rudbeckia triloba var. triloba - three-lobed coneflower
Solidago sp. L. - Goldenrod
Solidago canadensis L. - common goldenrod
Solidago flexicaulis L. - zigzag goldenrod
Solidago gigantea Aiton - smooth goldenrod
Solidago riddellii Frank - Riddell's goldenrod
Solidago rigida L. - stiff goldenrod
Solidago uliginosa Nutt. - northern bog goldenrod
Sonchus arvensis L. - perennial sow-thistle
Sonchus asper (L.) Hill - spiny-leaf sow-thistle
Sonchus oleraceus L. - field sow-thistle
Tragopogon dubius Scop. - yellow salsify
Tragopogon pratensis L. - yellow goat's-beard
Xanthium strumarium L. - rough cocklebur
Impatiens capensis Meerb. - spotted touch-me-not
Impatiens pallida Nutt. - yellow touch-me-not
Berberis thunbergii DC. - Japanese barberry
Berberis vulgaris L. - European barberry
Podophyllum peltatum L. - wild mandrake
Betula pumila L. - swamp birch
Betula x sandbergii Britton - Sandberg's birch
Corylus americana Walter - American hazelnut
Echium vulgare L. - viper's-bugloss
Hackelia deflexa - nodding stickseed
Hydrophyllum virginianum L. - Virginia waterleaf
Lithospermum latifolium Michx. - broad-leaved gromwell
Lithospermum officinale L. - European gromwell
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
Diplotaxis muralis (L.) DC. - stinking wall-rocket
Draba arabisans Michx. - rock whitlow-grass
Erysimum cheiranthoides L. - worm-seed wallflower
Rorippa palustris (L.) Besser - common yellow-cress
Sinapis arvensis L. - charlock mustard
Thlaspi arvense L. - field pennycress
Campanula rapunculoides L. - rover bellflower
Lobelia inflata L. - Indian-tobacco
Lobelia siphilitica L. - great blue lobelia
Lobelia spicata Lam. - spiked lobelia
Celtis occidentalis L. - northern hackberry
Diervilla lonicera Mill. - northern bush-honeysuckle
Lonicera reticulata Raf. - yellow honeysuckle
Lonicera tatarica L. - Tartarian honeysuckle
Lonicera X bella Zabel - white-bell honeysuckle
Lonicera X minutiflora Zabel - small-flower honeysuckle
Lonicera xylosteum L. - European fly honeysuckle
Triosteum aurantiacum var. aurantiacum - orange-fruit horse-gentian
Arenaria serpyllifolia - thyme-leaved sandwort
Cerastium fontanum - common mouse-ear chickweed
Cerastium nutans - nodding mouse-ear chickweed
Gypsophila scorzonerifolia Ser. - glandular baby's-breath
Silene csereii Baumg. - glaucous campion
Silene latifolia Poir. - white cockle
Stellaria longifolia Muhl. ex Willd. - long-leaved stitchwort
Stellaria media (L.) Vill. - common chickweed
Celastrus orbiculatus Thunb. - Oriental bittersweet
Celastrus scandens L. - climbing bittersweet
Parnassia glauca Raf. - fen grass-of-Parnassus
Uvularia grandiflora Sm. - large-flowered bellwort
Tradescantia ohiensis Raf. - smooth spiderwort
Calystegia sepium (L.) R.Br. - hedge false bindweed
Convolvulus arvensis L. - field bindweed
Cuscuta coryli Engelm. - hazel dodder
Cornus alternifolia L.f. - pagoda dogwood
Cornus foemina Mill. - panicled dogwood
Cornus rugosa Lam. - round-leaved dogwood
Cornus sericea L. - red osier dogwood
Sedum acre L. - yellow sedum
Citrullus lanatus - watermelon
Thuja occidentalis L. - northern white-cedar
Carex aurea Nutt. - golden-fruited sedge
Carex bicknellii Britton - Bicknell's sedge
Carex blanda Dewey - wood sedge
Carex comosa Boott - bristly sedge
Carex disperma Dewey - two-seeded bog sedge
Carex gracillima Schwein. - purple-sheathed graceful sedge
Carex haydenii Dewey - long-scaled tussock sedge
Carex hirtifolia Mack. - pubescent sedge
Carex interior L.H.Bailey - inland star sedge
Carex intumescens Rudge - swollen sedge
Carex lacustris Willd. - rip-gut sedge
Carex normalis Mack. - spreading oval sedge
Carex peckii Howe - Peck's sedge
Carex pellita Willd. - broad-leaved woolly sedge
Carex pensylvanica Lam. - Pennsylvania sedge
Carex projecta Mack. - necklace 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 siccata Dewey - running savanna sedge
Carex sparganioides Muhl. ex Willd. - loose-headed bracted sedge
Carex stricta Lam. - uptight sedge
Carex tenera Dewey - narrow-leaved oval sedge
Carex trisperma Dewey - three-seeded sedge
Carex utriculata Boott - Northwest Territory sedge
Carex vesicaria L. - tufted lake sedge
Cyperus odoratus L. - rusty flat sedge
Cyperus schweinitzii Torr. - Schweinitz's flat sedge
Eleocharis elliptica Kunth - elliptic spike-rush
Eleocharis intermedia Schult. - matted spike-rush
Eriophorum vaginatum L. - tussock cotton-grass
Schoenoplectus pungens (Vahl) Palla - common three-square bulrush
Scirpus atrovirens Willd. - dark-green bulrush
Drosera rotundifolia L. - round-leaved sundew
Cystopteris sp. Bernh. - Bladder Fern
Cystopteris bulbifera (L.) Bernh. - bulblet fragile fern
Cystopteris fragilis (L.) Bernh. - northern fragile fern
Cystopteris tenuis (Michx.) Desv. - upland brittle bladder fern
Onoclea sensibilis L. - sensitive fern
Equisetum arvense L. - field horsetail
Equisetum fluviatile L. - water horsetail
Equisetum laevigatum A.Braun - smooth scouring rush
Equisetum sylvaticum L. - woodland horsetail
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
Dalea purpurea var. purpurea - violet prairie-clover
Desmodium canadense (L.) DC. - showy tick-trefoil
Lathyrus sp. L. - Wild Pea
Lathyrus palustris L. - slender-stem pea-vine
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
Gentianopsis virgata (Raf.) Holub - small fringed gentian
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
Ribes triste Pall. - wild red currant
Myriophyllum farwellii Morong - Farwell's water-milfoil
Myriophyllum heterophyllum Michx. - various-leaved water-milfoil
Myriophyllum sibiricum Kom. - short-spike water-milfoil
Myriophyllum spicatum L. - spike water-milfoil
Myriophyllum verticillatum L. - whorled water-milfoil
Hamamelis virginiana L. - American witch-hazel
Hypericum ascyron L. - great St. John's-wort
Hypericum majus (A.Gray) Britton - larger Canadian St. John's-wort
Hypericum perforatum L. - St. John's-wort
Hypoxis hirsuta (L.) Coville - yellow star-grass
Sisyrinchium sp. L. - Blue-Eyed-Grass
Carya ovata - shellbark hickory
Carya ovata var. ovata - shellbark hickory
Juglans cinerea L. - white walnut
Juglans nigra L. - black walnut
Juncus alpinoarticulatus Chaix - northern green rush
Juncus canadensis J.Gay - Canadian rush
Juncus effusus L. - soft rush
Juncus tenuis Willd. - roadside rush
Juncus torreyi Coville - Torrey's rush
Lycopus uniflorus Michx. - northern water-horehound
Moluccella laevis L. - shellflower
Monarda fistulosa - wild bergamot
Salvia pratensis L. - meadow sage
Salvia reflexa Hornem. - Rocky Mountain sage
Scutellaria lateriflora L. - mad-dog skullcap
Utricularia sp. - Bladderwort
Utricularia intermedia Hayne - northern bladderwort
Utricularia vulgaris L. - great bladderwort
Erythronium albidum Nutt. - white trout-lily
Lilium michiganense Farw. - Turk's-cap lily
Lythrum salicaria L. - spiked loosestrife
Hibiscus trionum L. - flower-of-an-hour
Malva neglecta Wallr. - common mallow
Malva pusilla Sm. - low mallow
Malva sylvestris L. - high mallow
Trillium cernuum L. - whip-poor-will flower
Trillium flexipes Raf. - nodding wake-robin
Menyanthes trifoliata L. - common buckbean
Claytonia virginica L. - Virginia spring-beauty
Morus alba L. - white mulberry
Nuphar sp. - Yellow Water-Lily
Nuphar variegata Durand - bull-head pond-lily
Nymphaea odorata Aiton - fragrant water-lily
Circaea alpina subsp. alpina - small enchanter's-nightshade
Circaea canadensis (L.) Hill - broad-leaf enchanter's-nightshade