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Families: 100
Genera: 322
Species: 586 (species rank)
Total Taxa: 593 (including subsp. and var.)

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Sambucus racemosa - scarlet elderberry
Viburnum acerifolium L. - maple-leaved viburnum
Viburnum lantana L. - wayfaring-tree
Viburnum lentago L. - sheepberry
Viburnum trilobum Marshall - high-bush cranberry
Alisma triviale Pursh - northern water-plantain
Amaranthus retroflexus L. - wild-beet amaranth
Corispermum pallasii Steven - Siberian bugseed
Salsola tragus L. - tumbleweed
Allium cernuum Roth - nodding wild onion
Rhus typhina L. - staghorn sumac
Angelica atropurpurea L. - purple-stem angelica
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
Pastinaca sativa L. - wild parsnip
Sanicula canadensis L. - Canadian sanicle
Sium suave Walter - water-parsnip
Torilis japonica (Houtt.) DC. - Japanese hedge-parsley
Apocynum androsaemifolium L. - spreading dogbane
Asclepias incarnata - swamp milkweed
Asclepias verticillata L. - whorled milkweed
Ilex verticillata (L.) A.Gray - common winterberry
Arisaema triphyllum - Jack-in-the-pulpit
Calla palustris L. - wild calla
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
Convallaria majalis - lily-of-the-valley
Maianthemum canadense Desf. - wild lily-of-the-valley
Maianthemum canadense var. canadense - wild lily-of-the-valley
Maianthemum racemosum - Solomon's-plume
Maianthemum stellatum (L.) Link - starry false Solomon's-seal
Maianthemum trifolium (L.) Sloboda - three-leaf Solomon's-plume
Ambrosia trifida L. - horse-cane
Antennaria neglecta Greene - field pussy-toes
Anthemis cotula L. - stinking-cotula
Artemisia biennis Willd. - biennial wormwood
Bellis perennis L. - lawn daisy
Bidens cernua L. - nodding bur-marigold
Bidens connata Muhl. ex Willd. - purple-stemmed tickseed
Bidens frondosa L. - devil's beggar-ticks
Centaurea cyanus L. - cornflower
Cirsium muticum Michx. - swamp thistle
Crepis tectorum L. - narrow-leaved hawk's-beard
Erigeron annuus (L.) Pers. - eastern daisy fleabane
Erigeron philadelphicus - Philadelphia daisy
Eurybia furcata (E.S.Burgess) G.L.Nesom - midwestern white heart-leaved aster
Eurybia macrophylla (L.) Cass. - large-leaved aster
Euthamia sp. - Flat-Topped Goldenrod
Euthamia graminifolia (L.) Nutt. - grass-leaved goldenrod
Eutrochium maculatum L. - spotted Joe-Pye-weed
Gnaphalium uliginosum L. - marsh cudweed
Helenium autumnale L. - common sneezeweed
Helianthus annuus L. - garden 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 triloba var. triloba - three-lobed coneflower
Solidago canadensis L. - common goldenrod
Solidago flexicaulis L. - zigzag goldenrod
Solidago gigantea Aiton - smooth goldenrod
Solidago juncea Aiton - early goldenrod
Solidago missouriensis Nutt. - Missouri goldenrod
Sonchus arvensis L. - perennial sow-thistle
Tanacetum balsamita L. - mint-geranium
Tragopogon dubius Scop. - yellow salsify
Xanthium strumarium L. - rough cocklebur
Impatiens capensis Meerb. - spotted touch-me-not
Impatiens pallida Nutt. - yellow touch-me-not
Podophyllum peltatum L. - wild mandrake
Betula pumila L. - swamp birch
Echium vulgare L. - viper's-bugloss
Hydrophyllum virginianum L. - Virginia waterleaf
Lithospermum officinale L. - European gromwell
Myosotis arvensis (L.) Hill - field scorpion-grass
Myosotis scorpioides L. - water scorpion-grass
Myosotis sylvatica Ehrh. ex Hoffm. - woodland forget-me-not
Symphytum officinale L. - common comfrey
Berteroa incana (L.) DC. - hoary-alyssum
Cakile edentula (Bigelow) Hook. - American sea-rocket
Cardamine douglassii Britton - purple spring-cress
Cardamine pensylvanica Muhl. ex Willd. - Pennsylvania bitter-cress
Hesperis matronalis L. - dame's rocket
Lepidium densiflorum Schrad. - small peppergrass
Sinapis arvensis L. - charlock mustard
Thlaspi arvense L. - field pennycress
Campanula rapunculoides L. - rover bellflower
Lobelia siphilitica L. - great blue lobelia
Diervilla lonicera Mill. - northern bush-honeysuckle
Lonicera hirsuta Eaton - hairy honeysuckle
Lonicera X bella Zabel - white-bell honeysuckle
Arenaria serpyllifolia - thyme-leaved sandwort
Cerastium arvense L. - field mouse-ear chickweed
Cerastium fontanum - common mouse-ear chickweed
Cerastium nutans - nodding mouse-ear chickweed
Cerastium tomentosum L. - snow-in-summer
Silene dichotoma - forked catchfly
Silene latifolia Poir. - white cockle
Silene noctiflora L. - sticky cockle
Stellaria longifolia Muhl. ex Willd. - long-leaved stitchwort
Stellaria media (L.) Vill. - common chickweed
Euonymus europaeus L. - European spindle-tree
Uvularia grandiflora Sm. - large-flowered bellwort
Cornus alternifolia L.f. - pagoda dogwood
Cornus canadensis L. - dwarf cornel
Cornus rugosa Lam. - round-leaved dogwood
Cornus sericea L. - red osier dogwood
Juniperus communis L. - common juniper
Thuja occidentalis L. - northern white-cedar
Carex albursina E.Sheld. - white bear sedge
Carex arctata Boott - drooping woodland sedge
Carex aurea Nutt. - golden-fruited sedge
Carex blanda Dewey - wood sedge
Carex bromoides - brome-like sedge
Carex canescens L. - silvery sedge
Carex castanea Wahlenb. - chestnut woodland sedge
Carex communis var. communis - fibrous-root sedge
Carex cryptolepis Mack. - small yellow sedge
Carex disperma Dewey - two-seeded bog sedge
Carex flava L. - yellow sedge
Carex gracillima Schwein. - purple-sheathed graceful sedge
Carex granularis Muhl. ex Willd. - limestone meadow sedge
Carex gynandra Schwein. - nodding sedge
Carex hirtifolia Mack. - pubescent sedge
Carex hitchcockiana Dewey - Hitchcock's sedge
Carex interior L.H.Bailey - inland star sedge
Carex intumescens Rudge - swollen sedge
Carex leptalea - slender sedge
Carex leptonervia (Fernald) Fernald - nerveless woodland sedge
Carex ormostachya Wiegand - necklace-spike wood sedge
Carex peckii Howe - Peck's sedge
Carex pensylvanica Lam. - Pennsylvania sedge
Carex plantaginea Lam. - plantain-leaved wood sedge
Carex pseudocyperus L. - false bristly sedge
Carex retrorsa Schwein. - retrorse sedge
Carex sparganioides Muhl. ex Willd. - loose-headed bracted sedge
Carex vesicaria L. - tufted lake sedge
Schoenoplectus pungens (Vahl) Palla - common three-square bulrush
Scirpus atrovirens Willd. - dark-green bulrush
Drosera rotundifolia L. - round-leaved sundew
Cystopteris bulbifera (L.) Bernh. - bulblet fragile fern
Cystopteris laurentiana (Weath.) Blasdell - St. Lawrence bladder fern
Onoclea sensibilis L. - sensitive fern
Equisetum arvense L. - field horsetail
Equisetum fluviatile L. - water horsetail
Equisetum hyemale - scouring rush horsetail
Equisetum laevigatum A.Braun - smooth scouring rush
Equisetum scirpoides Michx. - sedge horsetail
Equisetum sylvaticum L. - woodland horsetail
Vaccinium myrtilloides Michx. - velvet-leaf huckleberry
Vaccinium oxycoccos L. - small cranberry
Euphorbia cyparissias L. - graveyard spurge
Euphorbia glyptosperma Engelm. - ridge-seeded spurge
Lathyrus latifolius L. - perennial 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 aureum Pollich - yellow hop clover
Trifolium campestre Schreb. - pinnate hop clover
Trifolium repens L. - white clover
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
Geranium maculatum L. - wild geranium
Ribes americanum Mill. - wild black currant
Ribes cynosbati L. - prickly wild gooseberry
Ribes glandulosum Grauer - skunk currant
Ribes hirtellum Michx. - swamp gooseberry
Ribes lacustre (Pers.) Poir. - spiny swamp currant
Ribes rubrum L. - garden red currant
Ribes triste Pall. - wild red currant
Myriophyllum sibiricum Kom. - short-spike water-milfoil
Myriophyllum spicatum L. - spike water-milfoil
Elodea canadensis Michx. - common waterweed
Hypericum kalmianum L. - Kalm's St. John's-wort
Hypericum majus (A.Gray) Britton - larger Canadian St. John's-wort
Hypericum perforatum L. - St. John's-wort
Sisyrinchium montanum Greene - strict blue-eyed grass
Sisyrinchium montanum var. montanum - strict blue-eyed grass
Carya ovata - shellbark hickory
Juncus alpinoarticulatus Chaix - northern green rush
Juncus bufonius L. - toad rush
Juncus compressus Jacq. - round-fruited rush
Juncus effusus L. - soft rush
Juncus tenuis Willd. - roadside rush
Juncus torreyi Coville - Torrey's rush
Luzula acuminata - hairy wood rush
Ajuga genevensis L. - standing bugle
Lycopus uniflorus Michx. - northern water-horehound
Scutellaria lateriflora L. - mad-dog skullcap
Erythronium albidum Nutt. - white trout-lily
Erythronium americanum - yellow trout-lily
Lilium michiganense Farw. - Turk's-cap lily
Medeola virginiana L. - Indian cucumber-root
Lycopodium clavatum L. - staghorn club-moss
Lythrum salicaria L. - spiked loosestrife
Malva moschata L. - musk mallow
Trillium cernuum L. - whip-poor-will flower
Menispermum canadense L. - common moonseed
Menyanthes trifoliata L. - common buckbean
Claytonia virginica L. - Virginia spring-beauty
Myrica gale L. - sweet gale
Nymphaea odorata Aiton - fragrant water-lily
Syringa vulgaris L. - common lilac
Circaea alpina subsp. alpina - small enchanter's-nightshade
Circaea canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Circaea canadensis subsp. canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Epilobium leptophyllum Raf. - fen willow-herb
Oenothera biennis L. - common evening-primrose
Corallorhiza trifida Châtel. - northern coralroot
Cypripedium acaule Aiton - small pink lady's-slipper
Cypripedium reginae Walter - showy lady's-slipper
Liparis loeselii (L.) Rich. - Loesel's twayblade
Platanthera huronensis (Nutt.) Lindl. - tall nothern bog orchid
Spiranthes romanzoffiana Cham. - hooded lady's-tresses
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 dillenii Jacq. - southern yellow wood-sorrel
Dicentra cucullaria (L.) Bernh. - Dutchman's-breeches
Penthorum sedoides L. - ditch stonecrop
Mimulus ringens - monkey-flower
Phryma leptostachya L. - American lop-seed
Pinus strobus L. - eastern white pine
Callitriche palustris L. - vernal water-starwort
Chelone glabra L. - white turtlehead
Linaria vulgaris Mill. - butter-and-eggs
Plantago aristata Michx. - large-bracted plantain
Plantago rugelii Decne. - Rugel's plantain
Bromus ciliatus L. - fringed brome
Bromus inermis Leyss. - smooth brome
Cinna arundinacea L. - stout wood-reed
Elymus canadensis L. - Great Plains wild-rye
Elymus hystrix L. - glumeless wild-rye
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
Lolium perenne subsp. perenne - perennial rye grass
Milium effusum L. - wood millet
Panicum virgatum L. - switch grass
Phalaris arundinacea L. - reed canary grass
Poa alsodes A.Gray - woodland bluegrass
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
Setaria pumila - yellow foxtail
Phlox divaricata - woodland phlox
Persicaria maculosa Gray - spotted lady's-thumb
Rumex acetosella L. - sheep sorrel
Rumex crispus L. - yellow dock
Pontederia cordata L. - pickerel-weed
Potamogeton amplifolius Tuck. - large-leaved pondweed
Potamogeton crispus L. - curly pondweed
Potamogeton praelongus Wulfen - white-stemmed 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 americana (DC.) H.Hara - round-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
Coptis trifolia (L.) Salisb. - three-leaved gold-thread
Enemion biternatum Raf. - false rue anemone
Ranunculus abortivus L. - small-flowered buttercup
Ranunculus acris L. - tall buttercup
Ranunculus hispidus Michx. - rough buttercup