Families: 111
Genera: 349
Species: 692
Total Taxa: 722 (including subsp. and var.)
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Sambucus canadensis var. canadensis - elderberry
Sambucus racemosa subsp. pubens var. pubens L. - scarlet elderberry
Viburnum acerifolium L. - maple-leaved viburnum
Viburnum lentago L. - sheepberry
Viburnum rafinesquianum var. affine (Bush ex C.K.Schneid.) House - downy arrow-wood
Viburnum rafinesquianum var. rafinesquianum - downy arrow-wood
Alisma subcordatum Raf. - southern water-plantain
Sagittaria graminea subsp. graminea - grass-leaved sagittaria
Sagittaria latifolia Willd. - wapato
Sagittaria rigida Pursh - stiff arrow-head
Amaranthus retroflexus L. - redroot amaranth
Chenopodium album L. - lamb's quarters
Chenopodium capitatum var. capitatum - strawberry-blite
Chenopodium simplex (Torr.) Raf. - maple-leaved goosefoot
Allium burdickii (Hanes) A.G.Jones - wild leek
Allium tricoccum Sol. - wild leek
Rhus glabra L. - smooth sumac
Rhus typhina L. - staghorn sumac
Rhus X pulvinata Greene (pro sp.) - pulvinate sumac
Toxicodendron rydbergii (Small ex Rydb.) Greene - western poison-ivy
Angelica atropurpurea L. - purple-stem angelica
Carum carvi L. - caraway
Cicuta maculata L. - spotted water-hemlock
Cryptotaenia canadensis (L.) DC. - white chervil
Osmorhiza claytonii (Michx.) C.B.Clarke - hairy sweet cicely
Osmorhiza longistylis (Torr.) DC. - smooth sweet cicely
Pastinaca sativa L. - wild parsnip
Sanicula canadensis L. - Canadian sanicle
Sanicula marilandica L. - Maryland sanicle
Sanicula odorata (Raf.) K.M.Pryer & L.R.Phillippe - clustered black snakeroot
Sanicula trifoliata E.P.Bicknell - large-fruited black snakeroot
Zizia aurea (L.) W.D.J.Koch - golden zizia
Apocynum androsaemifolium L. - spreading dogbane
Apocynum x floribundum Greene (pro sp.) - intermediate dogbane
Asclepias exaltata L. - tall milkweed
Asclepias incarnata subsp. incarnata - swamp milkweed
Asclepias syriaca L. - silkweed
Asclepias tuberosa - orange milkweed
Asclepias verticillata L. - whorled milkweed
Ilex mucronata (L.) M.Powell, V.Savolainen & S.Andrews - mountain holly
Ilex verticillata (L.) A.Gray - common winterberry
Arisaema triphyllum subsp. triphyllum - Jack-in-the-pulpit
Lemna minor L. - small duckweed
Lemna turionifera Landolt - Turion duckweed
Spirodela polyrrhiza (L.) Schleid. - greater duckweed
Aralia hispida Vent. - bristly sarsaparilla
Aralia nudicaulis L. - wild sarsaparilla
Panax quinquefolius L. - ginseng
Panax trifolius L. - groundnut
Asarum canadense L. - wild-ginger
Maianthemum canadense Desf. - wild lily-of-the-valley
Maianthemum canadense var. canadense - wild lily-of-the-valley
Maianthemum canadense var. interius Fernald - wild lily-of-the-valley
Maianthemum racemosum subsp. racemosum - Solomon's-plume
Maianthemum stellatum (L.) Link - starry false Solomon's-seal
Polygonatum biflorum (Walter) Elliott - Solomon's-seal
Polygonatum pubescens (Willd.) Pursh - hairy Solomon's-seal
Asplenium rhizophyllum L. - walking fern
Achillea millefolium L. - milfoil
Ageratina altissima subsp. altissima (L.) R.M.King & H.Rob. - white snakeroot
Ambrosia artemisiifolia L. - short ragweed
Ambrosia trifida L. - horse-cane
Anaphalis margaritacea (L.) Benth. & Hook.f. - western pearly everlasting
Antennaria howellii subsp. neodioica (Greene) R.J.Bayer - Howell's pussy-toes
Antennaria howellii subsp. petaloidea (Fernald) R.J.Bayer - small pussy-toes
Antennaria neglecta Greene - field pussy-toes
Antennaria parlinii subsp. fallax (Greene) R.J.Bayer & Stebbins - plantain pussy-toes
Artemisia campestris subsp. caudata (Michx.) H.M.Hall & Clem. - field wormwood
Bidens cernua L. - nodding bur-marigold
Bidens frondosa L. - devil's beggar-ticks
Bidens trichosperma (Michx.) Britton - tall swamp marigold
Bidens vulgata Greene - tall beggar-ticks
Callistephus chinensis (L.) Nees - china aster
Cichorium intybus L. - chicory
Cirsium discolor (Muhl. ex Willd.) Spreng. - prairie thistle
Cirsium muticum Michx. - swamp thistle
Cirsium vulgare (Savi) Ten. - common thistle
Conyza canadensis (L.) Cronquist - hogweed
Cyclachaena xanthiifolia (Nutt.) Fresen. - giant sump-weed
Doellingeria umbellata (Mill.) Nees - tall flat-topped white aster
Doellingeria umbellata var. umbellata (Mill.) Nees - tall flat-topped white aster
Erigeron annuus (L.) Pers. - eastern daisy fleabane
Erigeron strigosus var. septentrionalis (Fernald & Wiegand) Fernald - prairie fleabane
Erigeron strigosus var. strigosus - rough fleabane
Eupatorium perfoliatum L. - thoroughwort
Eurybia macrophylla (L.) Cass. - large-leaved aster
Euthamia graminifolia (L.) Nutt. - grass-leaved goldenrod
Eutrochium maculatum L. - spotted Joe-Pye-weed
Eutrochium maculatum var. maculatum (L.) E.E.Lamont - spotted Joe-Pye-weed
Gnaphalium uliginosum L. - marsh cudweed
Helenium autumnale L. - common sneezeweed
Helianthus decapetalus L. - thin-leaved sunflower
Helianthus giganteus L. - swamp sunflower
Helianthus strumosus L. - rough-leaved sunflower
Helianthus tuberosus L. - woodland sunflower
Helianthus X laetiflorus Pers. (pro sp.) - mountain sunflower
Heliopsis helianthoides var. helianthoides - sunflower-everlasting
Heliopsis helianthoides var. scabra (Dunal) Fernald - sunflower-everlasting
Hieracium aurantiacum L. - red daisy
Hieracium scabrum Michx. - sticky hawkweed
Hieracium umbellatum L. - northern hawkweed
Krigia biflora subsp. glandulifera (Fernald) Iltis - orange dwarf-dandelion
Lactuca canadensis L. - wild lettuce
Leucanthemum vulgare Lam. - ox-eye daisy
Liatris aspera Michx. - rough gayfeather
Liatris pycnostachya var. pycnostachya - thick-spike gay-feather
Matricaria discoidea DC. - disc mayweed
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
Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt - rabbit-tobacco
Rudbeckia hirta var. pulcherrima Farw. - black-eyed Susan
Rudbeckia laciniata L. - wild golden-glow
Rudbeckia laciniata var. laciniata - cut-leaved coneflower
Solidago altissima subsp. altissima L. - late goldenrod
Solidago canadensis var. hargeri Fernald - Harger's goldenrod
Solidago flexicaulis L. - zigzag goldenrod
Solidago gigantea Aiton - smooth goldenrod
Solidago juncea Aiton - early goldenrod
Solidago nemoralis Aiton - old-field goldenrod
Solidago nemoralis subsp. nemoralis - old-field goldenrod
Solidago speciosa Nutt. - showy goldenrod
Solidago uliginosa Nutt. - northern bog goldenrod
Sonchus arvensis subsp. uliginosus L. - marsh sow-thistle
Sonchus asper (L.) Hill - spiny-leaf sow-thistle
Symphyotrichum ciliolatum (Lindl.) A.Löve & D.Löve - northern heart-leaved aster
Symphyotrichum drummondii var. drummondii (Lindl.) G.L.Nesom - hairy heart-leaved aster
Symphyotrichum firmum (Nees) G.L.Nesom - glossy-leaved aster
Symphyotrichum lanceolatum (Willd.) G.L.Nesom - white panicle aster
Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve - side-flowering aster
Symphyotrichum novae-angliae (L.) G.L.Nesom - New England aster
Symphyotrichum ontarionis var. ontarionis (Wiegand) G.L.Nesom - Ontario aster
Symphyotrichum pilosum (Willd.) G.L.Nesom - white old-field aster
Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom - zigzag aster
Taraxacum officinale F.H.Wigg. - common dandelion
Vernonia fasciculata Michx. - smooth ironweed
Impatiens capensis Meerb. - spotted touch-me-not
Impatiens pallida Nutt. - yellow touch-me-not
Caulophyllum thalictroides (L.) Michx. - squaw-root
Podophyllum peltatum L. - wild mandrake
Alnus incana subsp. rugosa (Du Roi) R.T.Clausen - swamp alder
Betula alleghaniensis Britton - yellow birch
Betula cordifolia Regel - mountain white birch
Betula papyrifera Marshall - white birch
Betula pumila L. - swamp birch
Corylus americana Walter - American hazelnut
Corylus cornuta subsp. cornuta - beaked hazelnut
Ostrya virginiana (Mill.) K.Koch - ironwood
Hackelia deflexa var. americana (A.Gray) Fernald & I.M.Johnst. - nodding stickseed
Hydrophyllum virginianum L. - Virginia waterleaf
Myosotis scorpioides L. - water scorpion-grass
Myosotis sylvatica Ehrh. ex Hoffm. - woodland forget-me-not
Symphytum officinale L. - common comfrey
Barbarea vulgaris W.T.Aiton - yellow-rocket
Berteroa incana (L.) DC. - hoary-alyssum
Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz - smooth rock-cress
Boechera missouriensis (Greene) Al-Shehbaz - Missouri rock-cress
Capsella bursa-pastoris (L.) Medik. - shepherd's-purse
Cardamine concatenata (Michx.) O.Schwarz - five-parted toothwort
Cardamine diphylla (Michx.) A.W.Wood - crinkle-root
Cardamine parviflora L. - small-flowered bitter-cress
Cardamine pensylvanica Muhl. ex Willd. - Pennsylvania bitter-cress
Erysimum cheiranthoides L. - worm-seed wallflower
Lepidium densiflorum Schrad. - small peppergrass
Rorippa palustris subsp. palustris (L.) Besser - marsh-cress
Sinapis arvensis L. - charlock mustard
Sisymbrium officinale (L.) Scop. - hedge-mustard
Brasenia schreberi J.F.Gmel. - water-shield
Campanula aparinoides var. aparinoides - marsh bellflower
Campanula rotundifolia L. - harebell
Lobelia inflata L. - Indian-tobacco
Lobelia siphilitica L. - great blue lobelia
Lobelia siphilitica var. siphilitica - great blue lobelia
Diervilla lonicera Mill. - northern bush-honeysuckle
Lonicera canadensis W.Bartram ex Marshall - American fly honeysuckle
Lonicera dioica var. dioica - red honeysuckle
Lonicera dioica var. glaucescens (Rydb.) Butters - wild honeysuckle
Lonicera hirsuta Eaton - hairy honeysuckle
Lonicera tatarica L. - Tartarian honeysuckle
Triosteum aurantiacum var. aurantiacum - orange-fruit horse-gentian
Cerastium fontanum subsp. vulgare (Hartm.) Greuter & Burdet - mouse-ear chickweed
Dianthus armeria - Deptford pink
Moehringia lateriflora (L.) Fenzl - wood sandwort
Myosoton aquaticum (L.) Moench - water chickweed
Saponaria officinalis L. - soapwort
Silene latifolia Poir. - white cockle
Spergula arvensis L. - corn spurry
Stellaria graminea L. - starwort
Stellaria longifolia Muhl. ex Willd. - long-leaved stitchwort
Celastrus scandens L. - climbing bittersweet
Ceratophyllum demersum L. - hornwort
Crocanthemum canadense (L.) Britton - long-branch frostweed
Hudsonia tomentosa var. tomentosa - woolly beach-heather
Lechea intermedia var. intermedia - large-pod pinweed
Uvularia grandiflora Sm. - large-flowered bellwort
Uvularia sessilifolia L. - wild-oats
Calystegia spithamaea (L.) Pursh - low false bindweed
Cornus alternifolia L.f. - pagoda dogwood
Cornus canadensis L. - dwarf cornel
Cornus foemina subsp. racemosa Mill. - panicled dogwood
Cornus rugosa Lam. - round-leaved dogwood
Cornus sericea L. - red osier dogwood
Echinocystis lobata (Michx.) Torr. & A.Gray - wild-cucumber
Thuja occidentalis L. - northern white-cedar
Carex adusta Boott - lesser brown sedge
Carex arctata Boott - drooping woodland sedge
Carex blanda Dewey - wood sedge
Carex brevior (Dewey) Mack. - plains oval sedge
Carex bromoides subsp. bromoides - brome-like sedge
Carex cephaloidea (Dewey) Dewey - clustered bracted sedge
Carex crawfordii Fernald - Crawford's sedge
Carex crinita var. crinita - fringed sedge
Carex cumulata (L.H.Bailey) Mack. - crowded oval sedge
Carex debilis var. rudgei L.H.Bailey - white-edge sedge
Carex echinata subsp. echinata - star sedge
Carex folliculata L. - northern long sedge
Carex gracillima Schwein. - purple-sheathed graceful sedge
Carex gynandra Schwein. - nodding sedge
Carex haydenii Dewey - long-scaled tussock sedge
Carex hirtifolia Mack. - pubescent sedge
Carex intumescens Rudge - swollen sedge
Carex lacustris Willd. - rip-gut sedge
Carex leptonervia (Fernald) Fernald - nerveless woodland sedge
Carex lupulina Willd. - hop sedge
Carex lurida Wahlenb. - shallow sedge
Carex normalis Mack. - spreading oval sedge
Carex oligosperma Michx. - few-seeded sedge
Carex pensylvanica Lam. - Pennsylvania sedge
Carex plantaginea Lam. - plantain-leaved wood sedge
Carex projecta Mack. - necklace sedge
Carex radiata (Wahlenb.) Small - straight-styled wood sedge
Carex retrorsa Schwein. - retrorse sedge
Carex rosea Schkuhr ex Willd. - stellate sedge
Carex scoparia var. scoparia - lance-fruited oval sedge
Carex sparganioides Muhl. ex Willd. - loose-headed bracted sedge
Carex sprengelii Dewey ex Spreng. - Sprengel's sedge
Carex stipata var. stipata - owl-fruit sedge
Carex stricta Lam. - uptight sedge
Carex tenera Dewey - narrow-leaved oval sedge
Carex tribuloides var. tribuloides - blunt-broom sedge
Carex utriculata Boott - Northwest Territory sedge
Carex vesicaria L. - tufted lake sedge
Carex vulpinoidea Michx. - fox sedge
Carex woodii Dewey - Wood's stiff sedge
Cyperus bipartitus Torr. - slender flat sedge
Cyperus erythrorhizos Muhl. - red-rooted sedge
Dulichium arundinaceum var. arundinaceum - three-way sedge
Eleocharis acicularis (L.) Roem. & Schult. - needle spike-rush
Eleocharis engelmannii var. engelmannii - Engelmann's spike-rush
Eleocharis obtusa (Willd.) Schult. - blunt spike-rush
Eleocharis ovata (Roth) Roem. & Schult. - oval spike-rush
Eleocharis palustris (L.) Roem. & Schult. - marsh spike-rush
Eleocharis robbinsii Oakes - Robbins' spike-rush
Eriophorum angustifolium subsp. angustifolium - cotton-grass
Eriophorum virginicum L. - tawny cotton-grass
Rhynchospora capillacea Torr. - needle beak sedge
Rhynchospora capitellata (Michx.) Vahl - clustered beak-rush
Rhynchospora fusca (L.) W.T.Aiton - sooty beak-rush
Schoenoplectus tabernaemontani (C.C.Gmel.) Palla - soft-stem bulrush
Scirpus atrocinctus Fernald - black-girdled wool-grass
Scirpus atrovirens Willd. - dark-green bulrush
Scirpus cyperinus (L.) Kunth - wool-grass
Scirpus hattorianus Makino - mosquito bulrush
Scirpus microcarpus J.Presl & C.Presl - panicled bulrush
Pteridium aquilinum var. latiusculum (Desv.) Underw. ex A.Heller - eastern bracken fern
Dioscorea villosa L. - yam root
Drosera intermedia Hayne - spoon-leaf sundew
Drosera rotundifolia L. - round-leaved sundew
Athyrium filix-femina var. angustum (Willd.) G.Lawson - northern lady fern
Cystopteris fragilis (L.) Bernh. - northern fragile fern
Cystopteris protrusa (Weath.) Blasdell - lowland bladder fern
Cystopteris tenuis (Michx.) Desv. - upland brittle bladder fern
Deparia acrostichoides (Sw.) M.Kato - silvery spleenwort
Dryopteris carthusiana (Vill.) H.P.Fuchs - toothed wood fern
Dryopteris cristata (L.) A.Gray - crested wood fern
Dryopteris goldiana (Hook. ex Goldie) A.Gray - Goldie's wood fern
Dryopteris intermedia (Muhl. ex Willd.) A.Gray - intermediate wood fern
Dryopteris x boottii (Tuck.) Underw. (pro sp.) - Boott's wood fern
Dryopteris x triploidea Wherry - triploid wood fern
Gymnocarpium dryopteris (L.) Newman - western oak fern
Onoclea sensibilis L. - sensitive fern
Woodsia ilvensis (L.) R.Br. - rusty woodsia
Equisetum arvense L. - field horsetail
Equisetum pratense Ehrh. - meadow horsetail
Equisetum sylvaticum L. - woodland horsetail
Andromeda polifolia var. latifolia L. - bog rosemary
Chamaedaphne calyculata (L.) Moench - leather-leaf
Epigaea repens L. - trailing-arbutus
Gaultheria procumbens L. - wintergreen
Gaylussacia baccata (Wangenh.) K.Koch - huckleberry
Moneses uniflora (L.) A.Gray - single delight
Pyrola elliptica Nutt. - wax-flower shin-leaf
Rhododendron groenlandicum (Oeder) Kron & Judd - Labrador-tea
Vaccinium angustifolium Aiton - low sweet blueberry
Vaccinium macrocarpon Aiton - large cranberry
Vaccinium oxycoccos L. - small cranberry
Acalypha rhomboidea Raf. - three-seeded-mercury
Euphorbia corollata L. - flowering spurge
Euphorbia nutans Lag. - nodding spurge
Amphicarpaea bracteata (L.) Fernald - hog-peanut
Baptisia lactea (Raf.) Thieret - white wild indigo
Hylodesmum glutinosum (Muhl. ex Willd.) H.Ohashi & R.R.Mill - pointed tick-trefoil
Kummerowia stipulacea (Maxim.) Makino - Korean clover
Lathyrus ochroleucus Hook. - white pea
Lathyrus venosus Muhl. ex Willd. - veiny pea-vine
Lespedeza capitata Michx. - round-headed lespedeza
Lotus corniculatus L. - bird's-foot trefoil
Lotus unifoliolatus var. unifoliolatus - Spanish-clover
Lupinus perennis L. - wild lupine
Medicago lupulina L. - black medick
Trifolium aureum Pollich - yellow hop clover
Trifolium repens L. - white clover
Vicia americana subsp. americana - American vetch
Vicia sativa subsp. nigra (L.) Ehrh. - spring vetch
Quercus alba L. - white oak
Quercus ellipsoidalis E.J.Hill - northern pin oak
Quercus macrocarpa Michx. - bur oak
Quercus rubra L. - northern red oak
Bartonia virginica (L.) Britton, Sterns & Poggenb. - yellow screw-stem
Geranium bicknellii var. bicknellii - northern crane's-bill
Geranium maculatum L. - wild geranium
Ribes americanum Mill. - wild black currant
Ribes cynosbati L. - prickly wild gooseberry
Ribes glandulosum Grauer - skunk currant
Ribes missouriense Nutt. - wild gooseberry
Ribes triste Pall. - wild red currant
Myriophyllum farwellii Morong - Farwell's water-milfoil
Myriophyllum heterophyllum Michx. - various-leaved water-milfoil
Hamamelis virginiana L. - American witch-hazel
Elodea canadensis Michx. - common waterweed
Hypericum ascyron L. - great St. John's-wort
Hypericum boreale (Britton) E.P.Bicknell - northern St. John's-wort
Hypericum canadense L. - lesser Canadian St. John's-wort
Hypericum kalmianum L. - Kalm's St. John's-wort
Triadenum fraseri (Spach) Gleason - Fraser's marsh St. John's-wort
Iris versicolor L. - northern blue flag
Iris virginica var. shrevei (Small) E.S.Anderson - Virginia iris
Sisyrinchium montanum var. montanum - strict blue-eyed grass
Carya cordiformis (Wangenh.) K.Koch - yellow-bud hickory
Juglans cinerea L. - white walnut
Juncus acuminatus Michx. - tufted rush
Juncus brachycephalus (Engelm.) Buchenau - small-headed rush
Juncus brevicaudatus (Engelm.) Fernald - narrow-panicle rush
Juncus bufonius L. - toad rush
Juncus canadensis J.Gay - Canadian rush
Juncus effusus L. - soft rush
Juncus interior Wiegand - interior rush
Juncus tenuis Willd. - roadside rush
Luzula acuminata var. acuminata - hairy wood rush
Luzula multiflora subsp. multiflora - common wood rush
Galeopsis tetrahit var. bifida (Boenn.) Lej. & Courtois - hemp-nettle
Glechoma hederacea var. micrantha Moric. - ground-ivy
Lycopus americanus Muhl. ex W.P.C.Barton - common water-horehound
Lycopus uniflorus Michx. - northern water-horehound
Monarda fistulosa subsp. fistulosa - wild bergamot
Physostegia virginiana subsp. virginiana - obedience
Prunella vulgaris subsp. lanceolata (W.P.C.Barton) Hultén - lance self-heal
Scutellaria lateriflora L. - mad-dog skullcap
Stachys palustris L. - woundwort
Stachys tenuifolia var. tenuifolia - smooth hedge-nettle
Utricularia minor L. - small bladderwort
Utricularia vulgaris L. - great bladderwort
Clintonia borealis (Aiton) Raf. - yellow clintonia
Erythronium albidum Nutt. - white trout-lily
Erythronium americanum subsp. americanum - yellow trout-lily
Lilium michiganense Farw. - Turk's-cap lily
Streptopus lanceolatus var. longipes (Fernald) Reveal - twisted-stalk
Floerkea proserpinacoides Willd. - false mermaid-weed
Lindernia dubia (L.) Pennell - moist bank pimpernel
Lindernia dubia var. dubia - yellow-seed false pimpernel
Dendrolycopodium dendroideum (Michx.) A. Haines - round-branched club-moss
Dendrolycopodium hickeyi "(W.H.Wagner, Beitel & R.C.Moran) A.Haines" - intermediate ground-pine
Dendrolycopodium obscurum (L.) A. Haines - rare club-moss
Huperzia lucidula (Michx.) Trevis. - shining fir-moss
Lycopodiella inundata (L.) Holub - northern bog club-moss
Lycopodium clavatum L. - staghorn club-moss
Lythrum salicaria L. - spiked loosestrife
Abutilon theophrasti Medik. - velvet-leaf
Malva neglecta Wallr. - common mallow
Tilia americana L. - basswood
Tilia americana var. americana - basswood
Trillium cernuum L. - whip-poor-will flower
Trillium grandiflorum (Michx.) Salisb. - white wake-robin
Menispermum canadense L. - common moonseed
Mollugo verticillata L. - Indian chickweed
Claytonia virginica L. - Virginia spring-beauty
Phemeranthus rugospermus (Holz.) Kiger - sand fame-flower
Comptonia peregrina (L.) J.M.Coult. - sweet-fern
Nelumbo lutea Willd. - water-chinquapin
Nuphar variegata Durand - bull-head pond-lily
Fraxinus americana L. - white ash
Fraxinus nigra Marshall - black ash
Fraxinus pennsylvanica Marshall - red ash
Circaea alpina subsp. alpina - small enchanter's-nightshade
Circaea canadensis subsp. canadensis (L.) Hill - broad-leaf enchanter's-nightshade
Epilobium ciliatum Raf. - hairy willow-herb
Epilobium coloratum Biehler - eastern 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
Botrychium matricariifolium (Döll) A.Braun ex W.D.J.Koch - matricary grape fern
Botrypus virginianus (L.) Michx. - rattlesnake fern
Ophioglossum pusillum Raf. - northern adder's-tongue
Sceptridium dissectum (Spreng.) Lyon - lace-frond grape fern
Calopogon tuberosus var. tuberosus - tuberous grass pink
Coeloglossum viride var. virescens (Muhl.) Luer - frog orchid
Galearis spectabilis (L.) Raf. - showy orchis
Malaxis unifolia Michx. - green adder's-mouth
Platanthera clavellata (Michx.) Luer - small green fringed orchid
Platanthera hookeri (Torr. ex A.Gray) Lindl. - pad-leaf
Platanthera psycodes (L.) Lindl. - lesser purple fringed orchid
Pogonia ophioglossoides (L.) Ker Gawl. - snakemouth orchid
Spiranthes cernua (L.) Rich. - nodding lady's-tresses
Spiranthes lacera var. lacera - northern slender lady's-tresses
Spiranthes romanzoffiana Cham. - hooded lady's-tresses
Agalinis tenuifolia (Vahl) Raf. - common false foxglove
Conopholis americana (L.) Wallr. - American squawroot
Melampyrum lineare Desr. - narrow-leaved cow-wheat
Osmunda cinnamomea L. - cinnamon fern
Osmunda claytoniana L. - interrupted fern
Osmunda regalis var. spectabilis (Willd.) A.Gray - royal fern
Oxalis corniculata L. - creeping yellow wood-sorrel
Oxalis dillenii Jacq. - southern yellow wood-sorrel
Capnoides sempervirens (L.) Borkh. - rock harlequin
Dicentra canadensis (Goldie) Walp. - squirrel-corn
Dicentra cucullaria (L.) Bernh. - Dutchman's-breeches
Sanguinaria canadensis L. - bloodroot
Penthorum sedoides L. - ditch stonecrop
Mimulus ringens var. ringens - monkey-flower
Phryma leptostachya L. - American lop-seed
Abies balsamea (L.) Mill. - Canada balsam
Larix laricina (Du Roi) K.Koch - tamarack
Picea glauca (Moench) Voss - white spruce
Picea mariana (Mill.) Britton, Sterns & Poggenb. - black spruce
Pinus banksiana Lamb. - jack pine
Pinus resinosa Aiton - red pine
Pinus strobus L. - eastern white pine
Tsuga canadensis (L.) Carrière - northern hemlock
Callitriche palustris L. - vernal water-starwort
Chelone glabra L. - white turtlehead
Gratiola neglecta Torr. - clammy hedge-hyssop
Linaria vulgaris Mill. - butter-and-eggs
Nuttallanthus canadensis (L.) D.A.Sutton - Canada toadflax
Plantago major L. - plantain
Veronica serpyllifolia subsp. humifusa (Dicks.) Syme - thyme-leaved speedwell
Veronica serpyllifolia subsp. serpyllifolia - thyme-leaved speedwell
Veronicastrum virginicum (L.) Farw. - Culver's-root
Agrostis gigantea Roth - redtop
Agrostis perennans var. perennans - upland bent grass
Agrostis scabra Willd. - ticklegrass
Agrostis stolonifera L. - creeping tickle grass
Alopecurus pratensis L. - meadow foxtail
Andropogon gerardii Vitman - turkey-foot
Aristida basiramea Engelm. ex Vasey - fork-tip three-awn grass
Aristida longespica var. geniculata (Raf.) Fernald - slim-spike three-awn grass
Avena fatua L. - wild oats
Brachyelytrum aristosum (Michx.) P.Beauv. ex Branner & Coville - northern shorthusk
Brachyelytrum erectum (Schreb.) P.Beauv. - southern shorthusk
Bromus ciliatus L. - fringed brome
Bromus inermis Leyss. - smooth brome
Bromus latiglumis (Scribn. ex Shear) Hitchc. - flanged brome
Bromus pubescens Muhl. ex Willd. - hairy woodland brome
Calamagrostis canadensis (Michx.) P.Beauv. - blue-joint grass
Calamagrostis canadensis var. canadensis - blue-joint grass
Cinna arundinacea L. - stout wood-reed
Cinna latifolia (Trevir. ex Göpp.) Griseb. - drooping wood-reed
Dactylis glomerata L. - orchard grass
Danthonia spicata (L.) P.Beauv. ex Roem. & Schult. - poverty oat grass
Dichanthelium acuminatum (Sw.) Gould & C.A.Clark - twice-flowering panic grass
Dichanthelium acuminatum var. fasciculatum (Sw.) Gould & C.A.Clark - hairy panic grass
Dichanthelium acuminatum var. lindheimeri (Sw.) Gould & C.A.Clark - Lindheimer's panic grass
Dichanthelium boreale (Nash) Freckmann - northern panic grass
Dichanthelium columbianum (Scribn.) Freckmann - puberulent panic grass
Dichanthelium depauperatum (Muhl.) Gould - starved panic grass
Dichanthelium latifolium (L.) Harvill - broad-leaved panic grass
Dichanthelium leibergii (Vasey) Freckmann - prairie panic grass
Dichanthelium linearifolium (Scribn.) Gould - slender-leaved panic grass
Dichanthelium meridionale (Ashe) Freckmann - slender panic grass
Dichanthelium oligosanthes var. scribnerianum (Schult.) Gould - Scribner's panic grass
Dichanthelium perlongum (Nash) Freckmann - long-stalked panic grass
Dichanthelium xanthophysum (A.Gray) Freckmann - slender rosette grass
Digitaria ischaemum (Schreb.) Muhl. - smooth crabgrass
Echinochloa crus-galli (L.) P.Beauv. - large barnyard grass
Echinochloa muricata (P.Beauv.) Fernald - rough barnyard grass
Echinochloa muricata var. microstachya Wiegand - rough barnyard grass
Echinochloa muricata var. muricata - rough barnyard grass
Elymus canadensis L. - Great Plains wild-rye
Elymus hystrix var. bigeloviana (Fernald) Bowden - eastern bottlebrush grass
Elymus hystrix var. hystrix - glumeless wild-rye