More Details
Families: 137
Genera: 637
Species: 1637
Total Taxa: 1854 (including subsp. and var.)
Acorus americanus (Raf.) Raf. - sweet-flag
Acorus calamus L. - sweet-flag
Sambucus canadensis L. - elderberry
Sambucus canadensis var. canadensis - elderberry
Sambucus racemosa subsp. pubens var. pubens L. - scarlet elderberry
Viburnum sp. L. - Arrow Wood
Viburnum acerifolium L. - maple-leaved viburnum
Viburnum dentatum L. - southern arrow-wood
Viburnum dentatum var. lucidum Aiton - southern arrow-wood
Viburnum lantana L. - wayfaring-tree
Viburnum lentago L. - sheepberry
Viburnum opulus L. - snowball-bush
Viburnum opulus subsp. opulus - snowball-bush
Viburnum prunifolium L. - smooth black-haw
Viburnum rafinesquianum Schult. - downy arrow-wood
Viburnum rafinesquianum var. affine (Bush ex C.K.Schneid.) House - downy arrow-wood
Viburnum rafinesquianum var. rafinesquianum - downy arrow-wood
Viburnum trilobum Marshall - high-bush cranberry
Alisma sp. L. - Water-plantain
Alisma subcordatum Raf. - southern water-plantain
Alisma triviale Pursh - northern water-plantain
Sagittaria sp. L. - Arrowhead
Sagittaria cristata Engelm. - crested arrow-head
Sagittaria cuneata E.Sheld. - wapato
Sagittaria latifolia Willd. - wapato
Sagittaria rigida Pursh - stiff arrow-head
Amaranthus albus L. - prostrate pigweed
Amaranthus blitoides S.Watson - prostrate pigweed
Amaranthus caudatus L. - purple amaranth
Amaranthus cruentus L. - blood amaranth
Amaranthus hybridus L. - smooth pigweed
Amaranthus hypochondriacus L. - Prince-of-Wales'-feather
Amaranthus powellii S.Watson - tall amaranth
Amaranthus retroflexus L. - redroot amaranth
Amaranthus tuberculatus (Moq.) J.D.Sauer - tall water-hemp
Atriplex hortensis L. - garden orache
Atriplex patula L. - spear saltbush
Atriplex prostrata Boucher ex DC. - triangle orache
Bassia scoparia (L.) A.J. Scott - summer-cypress
Chenopodium sp. L. - Goosefoot
Chenopodium album L. - lamb's quarters
Chenopodium berlandieri - pit-seed goosefoot
Chenopodium berlandieri var. zschackei (Murr) Murr ex Asch. - Zschack's goosefoot
Chenopodium capitatum var. capitatum - strawberry-blite
Chenopodium foliosum (Moench) Asch. - leafy goosefoot
Chenopodium glaucum var. glaucum - oak-leaved goosefoot
Chenopodium polyspermum var. acutifolium (Sm.) Gaudin - many-seed goosefoot
Chenopodium pratericola Rydb. - narrow-leaf goosefoot
Chenopodium simplex (Torr.) Raf. - maple-leaved goosefoot
Chenopodium standleyanum Aellen - woodland goosefoot
Chenopodium strictum Roth - late-flowering goosefoot
Chenopodium urbicum L. - city goosefoot
Cycloloma atriplicifolium (Spreng.) J.M.Coult. - winged pigweed
Dysphania botrys (L.) Mosyakin & Clemants - goosefoot
Froelichia floridana (Nutt.) Moq. - plains snake-cotton
Froelichia gracilis (Hook.) Moq. - small cotton-weed
Salsola tragus L. - tumbleweed
Suaeda calceoliformis (Hook.) Moq. - Pursh's seep-weed
Allium sp. L. - Garlic
Allium burdickii (Hanes) A.G.Jones - wild leek
Allium canadense var. canadense - wild onion
Allium cepa L. - garden onion
Allium cernuum Roth - nodding wild onion
Allium schoenoprasum L. - chives
Allium stellatum Ker Gawl. - wild onion
Allium tricoccum Sol. - wild leek
Allium tuberosum Rottler ex Spreng. - Chinese chives
Rhus aromatica Aiton - squaw-bush
Rhus aromatica var. aromatica - squaw-bush
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
Toxicodendron vernix (L.) Kuntze - swamp sumac
Aegopodium podagraria L. - gout-weed
Aethusa cynapium L. - fool's-parsley
Anethum graveolens L. - Dill
Angelica atropurpurea L. - purple-stem angelica
Angelica atropurpurea var. atropurpurea - purple-stem angelica
Angelica atropurpurea var. occidentalis Fassett - western great angelica
Anthriscus sylvestris (L.) Hoffm. - wild chervil
Berula erecta (Huds.) Coville - low water-parsnip
Carum carvi L. - caraway
Cicuta bulbifera L. - bulblet water-hemlock
Cicuta maculata L. - spotted water-hemlock
Conium maculatum L. - poison-hemlock
Cryptotaenia canadensis (L.) DC. - white chervil
Daucus carota L. - wild carrot
Eryngium planum L. - plains eryngo
Eryngium yuccifolium Michx. - rattlesnake-master
Falcaria vulgaris Bernh. - sickle-weed
Heracleum maximum W.Bartram - American cow-parsnip
Osmorhiza claytonii (Michx.) C.B.Clarke - hairy sweet cicely
Osmorhiza longistylis (Torr.) DC. - smooth sweet cicely
Oxypolis rigidior (L.) Raf. - stiff cowbane
Pastinaca sativa L. - wild parsnip
Polytaenia nuttallii DC. - prairie-parsley
Sanicula marilandica L. - Maryland sanicle
Sanicula odorata (Raf.) K.M.Pryer & L.R.Phillippe - clustered black snakeroot
Sium suave Walter - water-parsnip
Taenidia integerrima (L.) Drude - yellow-pimpernel
Thaspium trifoliatum var. flavum S.F.Blake - smooth meadow-parsnip
Torilis japonica (Houtt.) DC. - Japanese hedge-parsley
Zizia aptera (A.Gray) Fernald - heart-leaved meadow-parsnip
Zizia aurea (L.) W.D.J.Koch - golden zizia
Apocynum androsaemifolium L. - spreading dogbane
Apocynum cannabinum - Indian hemp
Apocynum cannabinum var. hypericifolium L. - Indian hemp
Asclepias amplexicaulis Sm. - sand milkweed
Asclepias exaltata L. - tall milkweed
Asclepias hirtella (Pennell) Woodson - tall green milkweed
Asclepias incarnata L. - swamp milkweed
Asclepias incarnata subsp. incarnata - swamp milkweed
Asclepias lanuginosa Nutt. - woolly milkweed
Asclepias ovalifolia Decne. - oval-leaved milkweed
Asclepias sullivantii Engelm. ex A.Gray - Sullivant's milkweed
Asclepias syriaca L. - silkweed
Asclepias tuberosa subsp. interior L. - orange milkweed
Asclepias verticillata L. - whorled milkweed
Asclepias viridiflora Raf. - short green milkweed
Vinca minor L. - running-myrtle
Ilex verticillata (L.) A.Gray - common winterberry
Arisaema dracontium (L.) Schott - green dragon
Arisaema triphyllum (L.) Schott - Jack-in-the-pulpit
Arisaema triphyllum subsp. triphyllum - Jack-in-the-pulpit
Lemna minor L. - small duckweed
Lemna trisulca L. - star duckweed
Lemna turionifera Landolt - Turion duckweed
Spirodela polyrrhiza (L.) Schleid. - greater duckweed
Symplocarpus foetidus (L.) Salisb. ex W.P.C.Barton - skunk-cabbage
Wolffia borealis (Engelm. ex Hegelm.) Landolt - Northern water-meal
Wolffia columbiana H.Karst. - common water-meal
Aralia sp. - Sarsaparilla
Aralia elata (Miq.) Seem. - Hercules-club
Aralia nudicaulis L. - wild sarsaparilla
Aralia racemosa L. - life-of-man
Kalopanax septemlobus (Thunb. ex A.Murray) Koidz. - castor aralia
Asarum canadense L. - wild-ginger
Asparagus officinalis L. - garden asparagus
Convallaria majalis var. majalis - lily-of-the-valley
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 - Solomon's-plume
Maianthemum racemosum subsp. racemosum - Solomon's-plume
Maianthemum stellatum (L.) Link - starry false Solomon's-seal
Muscari botryoides (L.) Mill. - common grape-hyacinth
Ornithogalum umbellatum L. - sleepy-dick
Polygonatum biflorum (Walter) Elliott - Solomon's-seal
Polygonatum pubescens (Willd.) Pursh - hairy Solomon's-seal
Scilla siberica Andrews - squill
Yucca flaccida Haw. - yucca
Asplenium platyneuron (L.) Britton, Sterns & Poggenb. - ebony spleenwort
Asplenium rhizophyllum L. - walking fern
Achillea millefolium L. - milfoil
Achillea ptarmica L. - sneezewort
Ageratina altissima (L.) R.M.King & H.Rob. - white snakeroot
Ageratina altissima subsp. altissima (L.) R.M.King & H.Rob. - white snakeroot
Ambrosia artemisiifolia L. - short ragweed
Ambrosia psilostachya DC. - western ragweed
Ambrosia trifida L. - horse-cane
Anaphalis margaritacea (L.) Benth. & Hook.f. - western pearly everlasting
Antennaria sp. Gaertn. - Pussytoes
Antennaria howellii subsp. neodioica (Greene) R.J.Bayer - Howell's pussy-toes
Antennaria neglecta Greene - field pussy-toes
Antennaria parlinii subsp. fallax (Greene) R.J.Bayer & Stebbins - plantain pussy-toes
Antennaria parlinii subsp. parlinii - plantain pussy-toes
Antennaria plantaginifolia (L.) Hook. - woman's-tobacco
Anthemis cotula L. - stinking-cotula
Arctium lappa L. - great burdock
Arctium minus (Hill.) Bernh. - lesser burdock
Arctium tomentosum Mill. - woolly burdock
Arnoglossum atriplicifolium (L.) H.Rob. - pale Indian-plantain
Arnoglossum plantagineum Raf. - prairie Indian-plantain
Artemisia abrotanum L. - southernwood
Artemisia absinthium L. - absinth sage-wort
Artemisia annua L. - sweet wormwood
Artemisia biennis Willd. - biennial wormwood
Artemisia campestris subsp. caudata (Michx.) H.M.Hall & Clem. - field wormwood
Artemisia dracunculus L. - false tarragon
Artemisia ludoviciana subsp. ludoviciana - white sage
Artemisia serrata Nutt. - toothed sage
Artemisia vulgaris L. - sage-wort
Bidens aristosa (Michx.) Britton - swamp marigold
Bidens beckii Torr. ex Spreng. - water-marigold
Bidens cernua L. - nodding bur-marigold
Bidens connata Muhl. ex Willd. - purple-stemmed tickseed
Bidens frondosa L. - devil's beggar-ticks
Bidens trichosperma (Michx.) Britton - tall swamp marigold
Bidens tripartita L. - swamp tickseed
Bidens vulgata Greene - tall beggar-ticks
Boltonia asteroides var. recognita (Fernald & Griscom) Cronquist - white doll's-daisy
Brickellia eupatorioides (L.) Shinners - false boneset
Brickellia eupatorioides var. corymbulosa (L.) Shinners - false boneset
Callistephus chinensis (L.) Nees - china aster
Carduus nutans L. - nodding thistle
Carduus x orthocephalus Wallr. - plumeless thistle
Centaurea benedicta (L.) L. - blessed thistle
Centaurea cyanus L. - cornflower
Centaurea montana L. - mountain cornflower
Centaurea nigrescens Willd. - Vochin knapweed
Centaurea stoebe subsp. micranthos L. - spotted knapweed
Cichorium intybus L. - chicory
Cirsium altissimum (L.) Spreng. - roadside thistle
Cirsium arvense (L.) Scop. - field thistle
Cirsium discolor (Muhl. ex Willd.) Spreng. - prairie thistle
Cirsium flodmanii (Rydb.) Arthur - prairie thistle
Cirsium muticum Michx. - swamp thistle
Cirsium pumilum var. hillii (Nutt.) Spreng. - prairie thistle
Cirsium undulatum (Nutt.) Spreng. - wavy-leaved thistle
Cirsium vulgare (Savi) Ten. - common thistle
Conyza canadensis (L.) Cronquist - hogweed
Coreopsis lanceolata L. - sand tickseed
Coreopsis palmata Nutt. - stiff tickseed
Coreopsis tinctoria Nutt. - plains tickseed
Coreopsis tripteris L. - tall tickseed
Cosmos bipinnatus Cav. - common garden cosmos
Cota tinctoria (L.) J.Gay ex Guss. - yellow chamomile
Crepis capillaris (L.) Wallr. - smooth hawk's-beard
Crepis tectorum L. - narrow-leaved hawk's-beard
Cyclachaena xanthiifolia (Nutt.) Fresen. - giant sump-weed
Doellingeria umbellata var. pubens (Mill.) Nees - parasol aster
Doellingeria umbellata var. umbellata (Mill.) Nees - tall flat-topped white aster
Dyssodia papposa (Vent.) Hitchc. - stinking-marigold
Echinacea purpurea (L.) Moench - eastern purple coneflower
Erechtites hieracifolius - fireweed
Erechtites hieracifolius var. hieracifolius - fireweed
Erigeron annuus (L.) Pers. - eastern daisy fleabane
Erigeron philadelphicus - Philadelphia daisy
Erigeron philadelphicus var. philadelphicus - Philadelphia daisy
Erigeron pulchellus - Robin's-plantain
Erigeron pulchellus var. pulchellus - Robin's-plantain
Erigeron strigosus Muhl. ex Willd. - rough fleabane
Erigeron strigosus var. septentrionalis (Fernald & Wiegand) Fernald - prairie fleabane
Erigeron strigosus var. strigosus - rough fleabane
Eupatorium altissimum L. - tall thoroughwort
Eupatorium perfoliatum L. - thoroughwort
Eupatorium serotinum Michx. - late-flowering thoroughwort
Eupatorium sessilifolium Porter - woodland boneset
Eurybia macrophylla (L.) Cass. - large-leaved aster
Euthamia caroliniana (L.) Greene ex Porter & Britton - slender goldentop
Euthamia graminifolia (L.) Nutt. - grass-leaved goldenrod
Euthamia gymnospermoides Greene - viscid grass-leaved goldenrod
Eutrochium maculatum L. - spotted Joe-Pye-weed
Eutrochium maculatum var. maculatum (L.) E.E.Lamont - spotted Joe-Pye-weed
Eutrochium purpureum (L.) E.E.Lamont - purple Joe-Pye-weed
Gaillardia aristata Pursh - common gaillardia
Galinsoga parviflora var. parviflora - smooth Peruvian-daisy
Galinsoga quadriradiata Ruiz & Pav. - shaggy-soldier
Gnaphalium uliginosum L. - marsh cudweed
Grindelia lanceolata Nutt. - spiny-tooth gum-weed
Grindelia squarrosa (Pursh) Dunal - gum-weed
Hasteola suaveolens (L.) Pojark. - sweet Indian-plantain
Helenium amarum var. amarum - yellow-dicks
Helenium autumnale L. - common sneezeweed
Helianthus annuus L. - garden sunflower
Helianthus decapetalus L. - thin-leaved sunflower
Helianthus divaricatus L. - woodland sunflower
Helianthus giganteus L. - tall sunflower
Helianthus grosseserratus M.Martens - saw-tooth sunflower
Helianthus hirsutus Raf. - rough sunflower
Helianthus maximiliani Schrad. - Maximilian's sunflower
Helianthus occidentalis - western sunflower
Helianthus occidentalis subsp. occidentalis - western sunflower
Helianthus pauciflorus Nutt. - stiff sunflower
Helianthus pauciflorus subsp. pauciflorus - stiff sunflower
Helianthus salicifolius A.Dietr. - willow-leaved sunflower
Helianthus strumosus L. - rough-leaved sunflower
Helianthus tuberosus L. - woodland sunflower
Helianthus X kellermani Britton (pro sp.) - Kellerman's sunflower
Heliopsis helianthoides (L.) Sweet - sunflower-everlasting
Heliopsis helianthoides var. helianthoides - sunflower-everlasting
Heliopsis helianthoides var. scabra (Dunal) Fernald - sunflower-everlasting
Hieracium aurantiacum L. - red daisy
Hieracium caespitosum Dumort. - yellow king-devil
Hieracium longipilum Torr. ex Hook. - prairie hawkweed
Hieracium piloselloides Vill. - king-devil
Hieracium scabrum Michx. - sticky hawkweed
Hieracium umbellatum L. - northern hawkweed
Hieracium x fassettii var. fassettii - Fassett's hawkweed
Inula helenium L. - elecampane
Ionactis linariifolia (L.) Greene - stiff aster
Iva axillaris Pursh - poverty-weed
Krigia biflora (Walter) S.F.Blake - orange dwarf-dandelion
Krigia biflora subsp. glandulifera (Fernald) Iltis - orange dwarf-dandelion
Krigia virginica (L.) Willd. - Virginia dwarf-dandelion
Lactuca biennis (Moench) Fernald - woodland lettuce
Lactuca canadensis L. - wild lettuce
Lactuca floridana (L.) Gaertn. - woodland lettuce
Lactuca ludoviciana (Nutt.) Riddell - western wild lettuce
Lactuca serriola L. - prickly lettuce
Lapsana communis L. - nipplewort
Leucanthemella serotina (L.) Tzvelev - giant daisy
Leucanthemum vulgare Lam. - ox-eye daisy
Liatris aspera Michx. - rough gayfeather
Liatris cylindracea Michx. - barellhead gayfeather
Liatris ligulistylis (A.Nelson) K.Schum. - showy blazing-star
Liatris pycnostachya (L.) Willd. - thick-spike gay-feather
Liatris pycnostachya var. pycnostachya - thick-spike gay-feather
Liatris spicata var. spicata - sessile-headed blazing-star
Matricaria chamomilla L. - mayweed
Mulgedium pulchellum (Pursh) G.Don - showy blue lettuce
Nothocalais cuspidata (Pursh) Greene - prairie false dandelion
Packera aurea (L.) A.Löve & D.Löve - heart-leaved groundsel
Packera paupercula (Michx.) Á.Löve & D.Löve - northern ragwort
Packera paupercula var. paupercula - northern ragwort
Packera paupercula var. savannarum R.R.Kowal - northern ragwort
Packera plattensis (Nutt.) W.A.Weber & A.Löve - Platte groundsel
Packera pseudaurea var. semicordata (Mack. & Bush) D.K.Trock & T.M.Barkley - western golden ragwort
Parthenium integrifolium L. - wild quinine
Prenanthes alba L. - white rattlesnakeroot
Prenanthes racemosa Michx. - purple rattlesnake-root
Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt - rabbit-tobacco
Ratibida columnifera (Nutt.) Wooton & Standl. - upright prairie coneflower
Ratibida pinnata (Vent.) Barnhart - pinnate prairie coneflower
Rudbeckia hirta - black-eyed Susan
Rudbeckia hirta var. pulcherrima Farw. - black-eyed Susan
Rudbeckia laciniata L. - wild golden-glow
Rudbeckia laciniata var. laciniata - wild golden-glow
Rudbeckia subtomentosa Pursh - sweet coneflower
Rudbeckia triloba var. triloba - three-lobed coneflower
Senecio vulgaris L. - common groundsel
Silphium integrifolium Michx. - whole-leaf rosinweed
Silphium integrifolium var. integrifolium - whole-leaf rosinweed
Silphium laciniatum L. - compass-plant
Silphium perfoliatum - cup-plant
Silphium perfoliatum var. perfoliatum - cup-plant
Silphium terebinthinaceum - prairie rosinweed
Silphium terebinthinaceum var. terebinthinaceum - prairie rosinweed
Solidago sp. L. - Goldenrod
Solidago altissima subsp. altissima L. - late goldenrod
Solidago canadensis L. - common 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 missouriensis Nutt. - Missouri goldenrod
Solidago nemoralis Aiton - old-field goldenrod
Solidago nemoralis subsp. decemflora (DC.) Brammall - old-field goldenrod
Solidago nemoralis subsp. nemoralis - old-field goldenrod
Solidago patula var. patula - swamp goldenrod
Solidago ptarmicoides (Torr. & A.Gray) B.Boivin - upland white goldenrod
Solidago riddellii Frank - Riddell's goldenrod
Solidago rigida L. - stiff goldenrod
Solidago rigida subsp. rigida - stiff goldenrod
Solidago sciaphila E.S.Steele - shadowy goldenrod
Solidago speciosa Nutt. - showy goldenrod
Solidago speciosa subsp. speciosa var. rigidiuscula Nutt. - showy goldenrod
Solidago speciosa subsp. speciosa var. speciosa Nutt. - showy goldenrod
Solidago uliginosa Nutt. - northern bog goldenrod
Solidago ulmifolia - elm-leaved goldenrod
Solidago ulmifolia var. ulmifolia - elm-leaved goldenrod
Sonchus sp. L. - Sow-Thistle
Sonchus arvensis L. - perennial sow-thistle
Sonchus arvensis subsp. uliginosus L. - marsh sow-thistle
Sonchus asper (L.) Hill - spiny-leaf sow-thistle
Sonchus oleraceus L. - field sow-thistle
Symphyotrichum boreale (Torr. & A.Gray) A.Löve & D.Löve - slender white bog aster
Symphyotrichum ciliatum (Ledeb.) G.L.Nesom - alkali rayless aster
Symphyotrichum ciliolatum (Lindl.) A.Löve & D.Löve - northern heart-leaved aster
Symphyotrichum cordifolium (L.) G.L.Nesom - common blue wood aster
Symphyotrichum drummondii var. drummondii (Lindl.) G.L.Nesom - hairy heart-leaved aster
Symphyotrichum ericoides (L.) G.L.Nesom - white heath aster
Symphyotrichum ericoides var. ericoides (L.) G.L.Nesom - white prairie aster
Symphyotrichum firmum (Nees) G.L.Nesom - glossy-leaved aster
Symphyotrichum laeve (L.) A.Löve & D.Löve - smooth blue aster
Symphyotrichum laeve var. laeve (L.) A.Löve & D.Löve - smooth blue aster
Symphyotrichum lanceolatum (Willd.) G.L.Nesom - white panicle aster
Symphyotrichum lanceolatum var. hesperium (Willd.) G.L.Nesom - common Western lined aster
Symphyotrichum lanceolatum var. interior (Willd.) G.L.Nesom - white panicle aster
Symphyotrichum lanceolatum var. 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 oblongifolium (Nutt.) G.L.Nesom - oblong-leaved aster
Symphyotrichum ontarionis var. ontarionis (Wiegand) G.L.Nesom - Ontario aster
Symphyotrichum oolentangiense (Riddell) G.L.Nesom - sky-blue aster
Symphyotrichum pilosum (Willd.) G.L.Nesom - white old-field aster
Symphyotrichum pilosum var. pilosum (Willd.) G.L.Nesom - white old-field aster
Symphyotrichum pilosum var. pringlei (Willd.) G.L.Nesom - white old-field aster
Symphyotrichum praealtum (Poir.) G.L.Nesom - willow-leaved aster
Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom - zigzag aster
Symphyotrichum puniceum (L.) Á.Löve & D.Löve - swamp aster
Symphyotrichum sericeum (Vent.) G.L.Nesom - western silvery aster
Symphyotrichum shortii (Lindl.) G.L.Nesom - Short's aster
Symphyotrichum urophyllum (Lindl. ex DC.) G.L.Nesom - white arrowleaf aster
Symphyotrichum X amethystinum (Nutt.) G.L.Nesom - amethyst aster
Tagetes erecta L. - common marigold
Tanacetum balsamita L. - mint-geranium
Tanacetum parthenium (L.) Sch.Bip. - feverfew
Tanacetum vulgare L. - tansy
Taraxacum erythrospermum Andrz. ex Besser - red-seeded dandelion
Taraxacum officinale F.H.Wigg. - common dandelion
Tragopogon dubius Scop. - yellow salsify
Tragopogon pratensis L. - yellow goat's-beard
Vernonia fasciculata Michx. - smooth ironweed
Xanthium strumarium L. - rough cocklebur
Impatiens balfourii Hook.f. - Balfour's touch-me-not
Impatiens balsamina L. - spotted snap-weed
Impatiens capensis Meerb. - spotted touch-me-not
Impatiens glandulifera Royle - ornamental jewelweed
Impatiens pallida Nutt. - yellow touch-me-not
Berberis thunbergii DC. - Japanese barberry
Berberis vulgaris L. - European barberry
Caulophyllum thalictroides (L.) Michx. - squaw-root
Jeffersonia diphylla (L.) Pers. - twinleaf
Podophyllum peltatum L. - wild mandrake
Alnus glutinosa (L.) Gaertn. - European alder
Alnus incana subsp. rugosa (Du Roi) R.T.Clausen - swamp alder
Betula alleghaniensis Britton - yellow birch
Betula cordifolia Regel - mountain white birch
Betula nigra L. - river birch
Betula papyrifera Marshall - white birch
Betula pendula Roth - weeping birch
Betula populifolia Marshall - white birch
Betula pumila L. - swamp birch
Betula x sandbergii Britton - Sandberg's birch
Corylus americana Walter - American hazelnut
Ostrya virginiana (Mill.) K.Koch - ironwood
Campsis radicans (L.) Seem. ex Bureau - trumpet-creeper
Catalpa ovata G.Don - Chinese catalpa
Catalpa speciosa (Warder ex Barney) Warder ex Engelm. - northern catalpa
Cynoglossum amabile Stapf & J.R.Drumm. - Chinese hound's-tongue
Cynoglossum officinale L. - gypsy-flower
Echium vulgare L. - viper's-bugloss
Ellisia nyctelea (L.) L. - water-pod
Hackelia sp. - Beggar's-Lice
Hackelia deflexa var. americana (A.Gray) Fernald & I.M.Johnst. - nodding stickseed
Hackelia virginiana (L.) I.M.Johnst. - wild comfrey
Hydrophyllum appendiculatum Michx. - great waterleaf
Hydrophyllum virginianum L. - Virginia waterleaf
Lappula redowskii var. redowskii - western stickseed
Lappula squarrosa (Retz.) Durmort. - two-row stickseed
Lithospermum canescens (Michx.) Lehm. - hoary puccoon
Lithospermum caroliniense - hairy puccoon
Lithospermum caroliniense subsp. croceum (Fernald) Cusick - plains puccoon
Lithospermum incisum Lehm. - narrow-leaved puccoon
Lithospermum occidentale (Mack.) Weakley - western false gromwell
Lithospermum onosmodium J.I.Cohen - false gromwell
Lithospermum parviflorum "Weakley, Witsell & D.Estes" - soft-hair marble-seed
Mertensia virginica (L.) Pers. ex Link - Virginia cowslip
Myosotis laxa Lehm. - small forget-me-not
Myosotis scorpioides L. - water scorpion-grass
Myosotis verna Nutt. - white forget-me-not
Alliaria petiolata (M.Bieb.) Cavara & Grande - garlic mustard
Alyssum alyssoides (L.) L. - yellow alyssum
Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz - sand cress
Arabidopsis thaliana (L.) Heynh. - thale-cress
Arabis pycnocarpa var. pycnocarpa M.Hopkins - hairy rock-cress
Armoracia rusticana P.Gaertn., B.Mey. & Scherb. - horseradish
Barbarea orthoceras Ledeb. - northern winter-cress
Barbarea vulgaris W.T.Aiton - yellow-rocket
Berteroa incana (L.) DC. - hoary-alyssum
Boechera canadensis (L.) Al-Shehbaz - sickle-pod
Boechera dentata (Raf.) Al-Shehbaz & Zarucchi - toothed cress
Boechera grahamii (Lehm.) Windham & Al-Shehbaz - spreading-pod rock-cress
Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz - smooth rock-cress
Boechera stricta (Graham) Al-Shehbaz - Drummond's rock-cress
Brassica juncea (L.) Czern. - Indian mustard
Brassica napus L. - Swedish turnip
Brassica nigra (L.) W.D.J.Koch - black mustard
Brassica rapa L. - turnip
Cakile edentula subsp. edentula var. lacustris (Bigelow) Hook. - American sea-rocket
Camelina microcarpa Andrz. ex DC. - small-fruited false flax
Camelina sativa (L.) Crantz - large-seed false flax
Capsella bursa-pastoris (L.) Medik. - shepherd's-purse
Cardamine concatenata (Michx.) O.Schwarz - five-parted toothwort
Cardamine flexuosa With. - bending bitter-cress
Cardamine impatiens L. - narrowleaf bittercress
Cardamine parviflora L. - small-flowered bitter-cress
Cardamine pensylvanica Muhl. ex Willd. - Pennsylvania bitter-cress
Cardamine pratensis var. palustris Wimm. & Grab. - cuckoo-flower
Conringia orientalis (L.) Dumort. - treacle mustard
Descurainia pinnata subsp. brachycarpa (Richardson) Detling - western tansy mustard
Descurainia sophia (L.) Webb ex Prantl - tansy mustard
Diplotaxis muralis (L.) DC. - stinking wall-rocket
Draba arabisans Michx. - rock whitlow-grass
Draba reptans (Lam.) Fernald - common whitlow-grass
Erucastrum gallicum (Willd.) O.E.Schulz - dog-mustard
Erysimum cheiranthoides L. - worm-seed wallflower
Erysimum hieracifolium L. - wallflower
Erysimum inconspicuum (S.Watson) MacMill. - shy wallflower
Hesperis matronalis L. - dame's rocket
Lepidium campestre (L.) W.T.Aiton - field pepper-weed
Lepidium densiflorum Schrad. - small peppergrass
Lepidium draba L. - white-top
Lobularia maritima (L.) Desv. - sweet-alyssum
Malcolmia maritima (L.) W.T.Aiton - Virginia stock
Nasturtium microphyllum Boenn. ex Rchb. - watercress