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Wisflora - Vascular Plant Species

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WISFLORA: Vascular Plant Species

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County: Dunn

Family: Aceraceae
  Genus: Acer
    Acer negundo L.
        ash-leaved maple, box elder
    Acer negundo L. var. violaceum (Kirchn.) H.Jaeger+
        box elder
             Negundo aceroides (L.) Moench subsp. violaceum
    Acer nigrum F.Michx.*+
        black maple
             Acer nigrum F.Michx. var. palmeri Sarg.
             Acer saccharum Marshall subsp. nigrum
             Acer saccharum Marshall var. nigrum (F.Michx.) Britton
             Acer saccharum Marshall var. viride (Schmidt) E.Murray
             Saccharodendron nigrum (F.Michx.) Small
    Acer rubrum L. var. rubrum *+
        red maple
             Acer rubrum L. f. tomentosum (Desf.) Dans.
             Acer rubrum L. var. tomentosum Tausch
             Acer stenocarpum Britton
             Rufacer rubrum (L.) Small
    Acer saccharinum L.*+
        silver maple, soft maple
             Acer dasycarpum Ehrh.
             Acer saccharinum L. f. ahlesii A.Murray
             Acer saccharinum L. var. laciniatum Pax
             Acer saccharinum L. var. wieri Rehder
             Argentacer saccharinum (L.) Small
    Acer spicatum Lam.*+
        mountain maple
Family: Acoraceae
  Genus: Acorus
    Acorus americanus (Raf.) Raf.*
        sweet-flag
             Acorus calamus auct. non L.
             Acorus calamus L. var. americanus (Raf.) H.Wulff
             Acorus calamus L. var. americanus Raf.
Family: Agavaceae
Family: Alismataceae
  Genus: Alisma
    Alisma triviale Pursh*+
        northern water-plantain
             Alisma brevipes Greene
             Alisma plantago-aquatica L. subsp. brevipes
             Alisma plantago-aquatica L. var. americanum Schult.
             Alisma plantago-aquatica L. var. brevipes (Greene) Vict.
  Genus: Sagittaria
    Sagittaria cuneata E.Sheld.*+
        arum-leaved arrowhead, northern arrowhead, wapato
             Sagittaria arifolia Nutt. ex J.G.Sm.
    Sagittaria latifolia Willd.*+
        broad-leaved arrowhead, common arrowhead, duck-potato, wapato
             Sagittaria chinensis Pursh
             Sagittaria esculenta T.J.Howell
             Sagittaria latifolia Willd. f. gracilis (Pursh) B.L.Rob.
             Sagittaria latifolia Willd. f. hastata (Pursh) B.L.Rob.
             Sagittaria latifolia Willd. var. latifolia
             Sagittaria latifolia Willd. var. obtusa (Muhl. ex Willd.) Wiegand
             Sagittaria latifolia Willd. var. pubescens (Muhl. ex Nutt.) J.G.Sm.
             Sagittaria obtusa Muhl. ex Willd., non Thunb.
             Sagittaria ornithorhyncha Small
             Sagittaria planipes Fernald
             Sagittaria variabilis Engelm. var. obtusa (Muhl. ex Willd.) Engelm.
             Sagittaria viscosa C.Mohr, pro parte
    Sagittaria rigida Pursh*+
        sessile-fruited arrowhead, stiff arrowhead
             Sagittaria heterophylla Pursh
             Sagittaria heterophylla Pursh f. elliptica (Engelm.) S.F.Blake
             Sagittaria heterophylla Pursh f. fluitans (Engelm.) S.F.Blake
             Sagittaria heterophylla Pursh f. rigida (Pursh) S.F.Blake
             Sagittaria rigida Pursh f. elliptica (Engelm.) Fernald
             Sagittaria rigida Pursh f. fluitans (Engelm.) Fernald
Family: Amaranthaceae
  Genus: Amaranthus
    Amaranthus albus L.*+
        prostrate pigweed, tumble pigweed, tumbleweed, tumbleweed amaranth, white amaranth
             Amaranthus albus L. var. pubescens (Uline & W.L.Bray) Fernald
             Amaranthus graecizans auct. non L.
             Amaranthus graecizans L. var. pubescens Uline & W.L.Bray
             Amaranthus pubescens (Uline & W.L.Bray) Rydb.
    Amaranthus retroflexus L.*+
        common amaranth, pigweed, redroot, rough amaranth, rough pigweed, wild-beet amaranth
             Amaranthus retroflexus L. var. salicifolius I.M.Johnst.
  Genus: Froelichia
    Froelichia floridana (Nutt.) Moq.*+
        common cotton-weed, Florida snake-cotton, plains snake-cotton
             Froelichia campestris Small
             Froelichia floridana (Nutt.) Moq. var. campestris (Small) Fernald
             Froelichia floridana (Nutt.) Moq. var. floridana
             Froelichia floridana (Nutt.) Moq. var. pallescens Moq.
             Oplotheca floridana Nutt.
Family: Anacardiaceae
  Genus: Rhus
    Rhus glabra L.*+
        smooth sumac
             Rhus borealis Greene
             Rhus calophylla Greene
             Rhus glabra L. var. laciniata Carrière
             Rhus glabra L. var. occidentalis Torr.
    Rhus hirta (L.) Sudw.*+
        staghorn sumac, velvet sumac
             Datisca hirta L.
             Rhus typhina L.
             Rhus typhina L. f. dissecta Rehder
             Rhus typhina L. var. laciniata A.W.Wood
  Genus: Toxicodendron
    Toxicodendron rydbergii (Small ex Rydb.) Greene*+
        Rydberg's poison-ivy, western poison-ivy
             Rhus radicans L. var. rydbergii (Small ex Rydb.) Rehder
             Rhus radicans L. var. vulgaris (Michx.) DC.
             Rhus rydbergii Small ex Rydb. (pro parte)
             Rhus toxicodendron L. var. vulgaris Michx.
             Toxicodendron desertorum Lunell
             Toxicodendron fothergilloides Lunell
             Toxicodendron radicans (L.) Kuntze var. rydbergii (Small ex Rydb.) Erskine
Family: Apiaceae
  Genus: Carum
    Carum carvi L.*+
        caraway
             Carum velenovskyi Rohlena
  Genus: Cicuta
    Cicuta bulbifera L.*+
        bulblet water-hemlock
    Cicuta maculata L.*+
        common water-hemlock, spotted water-hemlock
  Genus: Cryptotaenia
    Cryptotaenia canadensis (L.) DC.*+
        Canadian honewort, white chervil
             Deringa canadensis (L.) Kuntze
  Genus: Hydrocotyle
    Hydrocotyle americana L.*+
        American marsh pennywort, marsh pennywort
  Genus: Osmorhiza
    Osmorhiza longistylis (Torr.) DC.*+
        anise-root, long-styled sweet cicely, long-styled sweet-root, smooth sweet cicely
             Myrrhis longistylis Torr.
             Osmorhiza aristata (Thunb.) Makino var. longistylis (Torr.) B.Boivin
             Osmorhiza longistylis (Torr.) DC. var. brachycoma S.F.Blake
             Osmorhiza longistylis (Torr.) DC. var. imbarbata Salamun
             Osmorhiza longistylis (Torr.) DC. var. villicaulis Fernald
             Washingtonia longistylis (Torr.) Britton
  Genus: Sanicula
    Sanicula marilandica L.*+
        black snakeroot, Maryland sanicle
             Sanicula marilandica L. var. petiolulata Fernald
    Sanicula trifoliata E.P.Bicknell+
        beaked sanicle, large-fruited black snakeroot
  Genus: Zizia
    Zizia aptera (A.Gray) Fernald*+
        heart-leaved golden alexanders, heart-leaved meadow-parsnip
             Thaspium trifoliatum (L.) A.Gray var. apterum A.Gray
             Zizia cordata W.D.J.Koch ex DC.
             Zizia aptera (A.Gray) Fernald var. aptera
             Zizia aptera (A.Gray) Fernald var. occidentalis Fernald
    Zizia aurea (L.) W.D.J.Koch*+
        common golden alexanders, golden alexanders, golden zizia
             Smyrnium aureum L.
Family: Apocynaceae
  Genus: Apocynum
    Apocynum androsaemifolium L.*+
        spreading dogbane
             Apocynum androsaemifolium L. var. incanum A.DC. subsp. androsaemifolium
             Apocynum pumilum (A.Gray) Greene var. rhomboideum (Greene) Bég. & Bél.
             Apocynum scopulorum Greene ex Rydb.
    Apocynum cannabinum L.*+
        hemp-dogbane, Indian hemp
             Apocynum album Greene var. hypericifolium A.Gray
             Apocynum cannabinum L. var. angustifolium (Wooton) N.H.Holmgren
             Apocynum cannabinum L. var. glaberrimum A.DC.
             Apocynum cannabinum L. var. greeneanum (Bég. & Bél.) Woodson
             Apocynum cannabinum L. var. nemorale (G.S.Mill.) Fernald
             Apocynum cannabinum L. var. pubescens (Mitch. ex R.Br.) A.DC.
             Apocynum cannabinum L. var. suksdorfii (Greene) Bég. & Bél.
             Apocynum pubescens Mitch. ex R.Br.
             Apocynum suksdorfii Greene
             Apocynum suksdorfii Greene var. angustifolium (Wooton) Woodson
    Apocynum X floribundum Greene (pro sp.) X +
        hybrid dogbane, intermediate dogbane
             Apocynum jonesii Woodson
             Apocynum medium Greene
             Apocynum medium Greene var. floribundum (Greene) Woodson
             Apocynum medium Greene var. leuconeuron (Greene) Woodson
             Apocynum medium Greene var. lividum (Greene) Woodson
             Apocynum medium Greene var. sarniense (Greene) Woodson
             Apocynum medium Greene var. vestitum (Greene) Woodson
             Apocynum milleri Britton
Family: Aquifoliaceae
  Genus: Ilex
    Ilex verticillata (L.) A.Gray*+
        common winterberry
             Ilex bronxensis Britton
             Ilex fastigiata E.P.Bicknell
             Ilex verticillata (L.) A.Gray subsp. tenuifolia
             Ilex verticillata (L.) A.Gray var. cyclophylla B.L.Rob.
             Ilex verticillata (L.) A.Gray var. fastigiata (E.P.Bicknell) Fernald
             Ilex verticillata (L.) A.Gray var. padifolia (Willd.) Torr. & A.Gray ex S.Watson
             Ilex verticillata (L.) A.Gray var. tenuifolia (Torr.) S.Watson
             Ilex verticillata (L.) A.Gray var. verticillata
             Prinos padifolius Willd.
             Prinos verticillatus L.
             Prinos verticillatus L. var. tenuifolius Torr.
Family: Araceae
  Genus: Arisaema
    Arisaema dracontium (L.) Schott*+
        dragon-root, green dragon
             Arum dracontium L.
             Muricauda dracontium (L.) Small
    Arisaema triphyllum (L.) Schott subsp. triphyllum*+
        Indian turnip, Jack-in-the-pulpit
             Arisaema atrorubens (Aiton) Blume
             Arisaema atrorubens (Aiton) Blume f. viride (Engl.) Fernald
             Arisaema atrorubens (Aiton) Blume f. zebrinum (Sims.) Fernald
             Arisaema triphyllum (L.) Schott f. viride (Engl.) Farw.
             Arisaema triphyllum (L.) Schott var. triphyllum
Family: Araliaceae
  Genus: Aralia
    Aralia nudicaulis L.*+
        wild sarsaparilla
    Aralia racemosa L.*+
        American spikenard, life-of-man
             Aralia racemosa L. subsp. racemosa
  Genus: Panax
    Panax trifolius L.*+
        dwarf ginseng, groundnut
Family: Aristolochiaceae
  Genus: Asarum
    Asarum canadense L.*+
        Canadian wild-ginger, wild-ginger
             Asarum acuminatum (Ashe) E.P.Bicknell
             Asarum canadense L. var. acuminatum Ashe
             Asarum canadense L. f. prattii Fassett var. acuminatum Ashe
             Asarum canadense L. var. ambiguum (E.P.Bicknell) Farw.
             Asarum canadense L. var. canadense
             Asarum canadense L. var. reflexum (E.P.Bicknell) B.L.Rob.
             Asarum reflexum E.P.Bicknell
             Asarum reflexum E.P.Bicknell var. ambiguum E.P.Bicknell
             Asarum rubrocinctum Peattie
Family: Asclepiadaceae
  Genus: Asclepias
    Asclepias exaltata L.*+
        poke milkweed, tall milkweed
             Asclepias bicknellii Vail
             Asclepias phytolaccoides Pursh
    Asclepias incarnata L. subsp. incarnata*+
        swamp milkweed
             Asclepias incarnata L. var. incarnata
    Asclepias ovalifolia Decne.*+
        dwarf milkweed, oval milkweed, oval-leaved milkweed
    Asclepias syriaca L.*+
        common milkweed, silkweed
             Asclepias intermedia Vail
             Asclepias kansana Vail
             Asclepias syriaca L. var. kansana (Vail) E.J.Palmer & Steyerm.
    Asclepias tuberosa L. subsp. interior*+
        butterfly milkweed, butterfly-weed, orange milkweed
             Asclepias tuberosa L. subsp. terminalis
             Asclepias tuberosa L. var. interior (Woodson) Shinners
    Asclepias viridiflora Raf.*+
        short green milkweed
             Acerates viridiflora (Raf.) Pursh ex Eaton
             Acerates viridiflora (Raf.) Pursh ex Eaton var. ivesii Britton
             Acerates viridiflora (Raf.) Pursh ex Eaton var. linearis A.Gray
             Asclepias lanceolata Ives
             Asclepias viridiflora Raf. var. lanceolata (Ives) Torr.
             Asclepias viridiflora Raf. var. linearis (A.Gray) Fernald
Family: Aspleniaceae
Family: Asteraceae
  Genus: Achillea
    Achillea millefolium L. subsp. lanulosa+
        common yarrow, milfoil
             Achillea angustissima Rydb.
             Achillea aspleniifolia auct. non Vent.
             Achillea eradiata Piper
             Achillea gracilis Raf.
             Achillea lanulosa Nutt.
             Achillea lanulosa Nutt. f. peroutkyi F.C.Seymour
             Achillea lanulosa Nutt. f. rubicunda Farw.
             Achillea lanulosa Nutt. subsp. typica
             Achillea lanulosa Nutt. var. arachnoidea Lunell
             Achillea lanulosa Nutt. var. eradiata (Piper) M.Peck
             Achillea laxiflora Pollard & Cockerell
             Achillea millefolium L. f. rubicunda Farw. subsp. lanulosa
             Achillea millefolium L. subsp. occidentalis
             Achillea millefolium L. subsp. pallidotegula
             Achillea millefolium L. var. aspleniifolia (Vent.) Farw.
             Achillea millefolium L. var. gracilis Raf. ex DC.
             Achillea millefolium L. var. lanulosa (Nutt.) Piper
             Achillea millefolium L. var. occidentalis DC.
             Achillea millefolium L. var. rosea (Desf.) Torr. & A.Gray
             Achillea millefolium L. var. russeolata B.Boivin
             Achillea occidentalis (DC.) Raf. ex Rydb.
             Achillea rosea Desf.
             Achillea tomentosa Pursh, non L.
    Achillea millefolium L. subsp. millefolium+
        common yarrow, milfoil
             Achillea millefolium L. var. millefolium
  Genus: Ambrosia
    Ambrosia psilostachya DC.*+
        perennial ragweed, western ragweed
             Ambrosia californica Rydb.
             Ambrosia coronopifolia Torr. & A.Gray
             Ambrosia coronopifolia Torr. & A.Gray var. asperula A.Gray
             Ambrosia coronopifolia Torr. & A.Gray var. gracilis A.Gray
             Ambrosia cumanensis Kunth
             Ambrosia lindheimeriana Scheele
             Ambrosia psilostachya DC. var. californica (Rydb.) S.F.Blake
             Ambrosia psilostachya DC. var. coronopifolia (Torr. & A.Gray) Farw. ex Fernald
             Ambrosia psilostachya DC. var. lindheimeriana (Scheele) Blank.
             Ambrosia rugelii Rydb.
  Genus: Antennaria
    Antennaria howellii Greene subsp. petaloidea+
        Howell's pussy-toes, small pussy-toes
             Antennaria appendiculata Fernald
             Antennaria concolor Piper
             Antennaria neglecta Greene var. petaloidea (Fernald) Cronquist
             Antennaria neglecta Greene var. subcorymbosa Fernald
             Antennaria neodioica Greene subsp. petaloidea
             Antennaria neodioica Greene var. petaloidea Fernald
             Antennaria petaloidea Fernald
             Antennaria petaloidea (Fernald) Fernald var. noveboracensis Fernald
             Antennaria petaloidea (Fernald) Fernald var. scariosa Fernald
             Antennaria petaloidea (Fernald) Fernald var. subcorymbosa (Fernald) Fernald
             Antennaria stenolepis Greene
    Antennaria neglecta Greene*+
        cat's-foot, field pussy-toes
             Antennaria angustiarum Lunell
             Antennaria athabascensis Greene
             Antennaria campestris Rydb.
             Antennaria campestris Rydb. var. athabascensis (Greene) B.Boivin
             Antennaria chelonica Lunell
             Antennaria erosa Greene
             Antennaria howellii Greene var. athabascensis (Greene) B.Boivin
             Antennaria howellii Greene var. campestris (Rydb.) B.Boivin
             Antennaria longifolia Greene
             Antennaria lunellii Greene
             Antennaria nebraskensis Greene
             Antennaria neglecta Greene var. athabascensis (Greene) Roy L.Taylor & MacBryde
             Antennaria neglecta Greene var. campestris (Rydb.) Steyerm.
             Antennaria neglecta Greene var. neglecta
             Antennaria parvula Greene
             Antennaria wilsonii Greene
    Antennaria parlinii Fernald subsp. fallax+
        Parlin's pussy-toes, plantain pussy-toes
             Antennaria ambigens (Greene) Fernald
             Antennaria ampla Bush
             Antennaria arkansana Greene
             Antennaria arnoglossa Greene var. ambigens Greene
             Antennaria bifrons Greene
             Antennaria brainerdii Greene
             Antennaria calophylla Greene
             Antennaria fallax Greene
             Antennaria fallax Greene var. calophylla (Greene) Fernald
             Antennaria farwellii Greene
             Antennaria greenei Bush
             Antennaria mesochora Greene
             Antennaria munda Fernald
             Antennaria obovata E.E.Nelson
             Antennaria occidentalis Greene
             Antennaria parlinii Fernald var. ambigens (Greene) Fernald
             Antennaria parlinii Fernald var. farwellii (Greene) B.Boivin
             Antennaria plantaginifolia (L.) Richardson var. ambigens (Greene) Cronquist
             Antennaria umbellata Greene
  Genus: Anthemis
    Anthemis cotula L.*+
        dog-fennel, mayweed, stinking chamomile, stinking-cotula
             Maruta cotula (L.) DC.
  Genus: Arctium
    Arctium minus Bernh.*+
        common burdock, lesser burdock
             Arctium minus Bernh. f. laciniatum Clute
             Lappa minor Hill
    Arctium tomentosum Mill.+
        cotton burdock, hairy burdock, woolly burdock
  Genus: Arnoglossum
    Arnoglossum reniforme (Hook.) H.Rob.*+
        great Indian-plantain, Muhlenberg's cacalia
             Arnoglossum muhlenbergii (Sch.Bip.) H.Rob.
             Cacalia muhlenbergii (Sch.Bip.) Fernald
             Cacalia reniformis Muhl. ex Willd., non Lam.
             Mesadenia reniformis (Hook.) Raf.
             Mesadenia muhlenbergii (Sch.Bip.) Rydb.
             Senecio atriplicifolius Hook. var. reniformis Hook.
             Senecio muhlenbergii Sch.Bip.
  Genus: Artemisia
    Artemisia ludoviciana Nutt. subsp. ludoviciana*+
        Louisiana sage-wort, western mugwort, white sage
             Artemisia brittonii Rydb.
             Artemisia diversifolia Rydb.
             Artemisia gnaphalodes Nutt.
             Artemisia herriotii Rydb.
             Artemisia ludoviciana Nutt. subsp. typica
             Artemisia ludoviciana Nutt. var. americana (Besser) Fernald
             Artemisia ludoviciana Nutt. var. brittonii (Rydb.) Fernald
             Artemisia ludoviciana Nutt. var. gnaphalodes (Nutt.) Torr. & A.Gray
             Artemisia ludoviciana Nutt. var. latifolia (Besser) Torr. & A.Gray
             Artemisia ludoviciana Nutt. var. ludoviciana
             Artemisia ludoviciana Nutt. var. pabularis (A.Nelson) Fernald
             Artemisia pabularis (A.Nelson) Rydb.
             Artemisia purshiana Besser
             Artemisia purshiana Besser var. latifolia Besser
             Artemisia rhizomata A.Nelson var. pabularis A.Nelson
             Artemisia vulgaris L. subsp. ludoviciana
             Artemisia vulgaris L. var. ludoviciana (Nutt.) Kuntze
    Artemisia serrata Nutt.*+
        saw-leaf mugwort, saw-toothed sagebrush, saw-tooth wormwood, toothed sage
  Genus: Aster
    Aster ericoides L. var. ericoides *+
        heath aster, squarrose white aster, white prairie aster
             Aster ericoides L. f. caeruleus (Benke) S.F.Blake
             Aster ericoides L. f. ericoides
             Aster ericoides L. f. gramsii Benke
             Aster ericoides L. subsp. ericoides
             Aster multiflorus Aiton
             Aster multiflorus Aiton var. caeruleus Benke
             Aster multiflorus Aiton var. exiguus Fernald
             Aster polycephalus Rydb.
             Aster scoparius DC.
             Lasallea ericoides (L.) Semple & Brouillet
             Symphyotrichum ericoides (L.) G.L.Nesom
             Symphyotrichum ericoides (L.) G.L.Nesom var. ericoides
             Virgulus ericoides (L.) Reveal & Keener
    Aster ericoides L. var. prostratus (Kuntze) S.F.Blake+
        prostrate heath aster
             Aster ericoides L. f. prostratus (Kuntze) Fernald
             Aster exiguus Rydb.
             Aster multiflorus Aiton var. prostratus Kuntze
             Symphyotrichum ericoides (L.) G.L.Nesom var. prostratum (Kuntze) G.L.Nesom
    Aster firmus Nees*+
        shining aster, shiny-leaved aster
             Aster lucidulus (A.Gray) Wiegand
             Aster lucidulus (A.Gray) Wiegand f. albiflorus (R.Hoffm.) Benke
             Aster lucidulus (A.Gray) Wiegand f. firmus (Nees) Deam
             Aster puniceus L. subsp. firmus
             Aster puniceus L. var. firmus (Nees) Torr. & A.Gray
             Aster puniceus L. f. lucidulus (A.Gray) Fernald var. firmus (Nees) Torr. & A.Gray
             Aster puniceus L. var. lucidulus A.Gray
             Symphyotrichum firmum (Nees) G.L.Nesom
    Aster laevis L. X A. lanceolatus Willd.+
             Aster laevis L. X A. paniculatus Lam.
    Aster lanceolatus Willd. var. lanceolatus +
        eastern lined aster, marsh aster, panicled aster, white panicle aster
             Aster bellidiflorus Willd.
             Aster lamarckianus Nees
             Aster lanceolatus Willd. subsp. lanceolatus
             Aster lanceolatus Willd. var. lanceolatus subsp. lanceolatus
             Aster laxus Willd.
             Aster paniculatus Lam.
             Aster paniculatus Lam. var. bellidiflorus (Willd.) E.S.Burgess
             Aster simplex Willd. var. estuarinus B.Boivin
             Aster simplex Willd. var. ramosissimus (Torr. & A.Gray) Cronquist
             Aster tenuifolius sensu Torr. & A.Gray var. ramosissimus Torr. & A.Gray
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom subsp. lanceolatum
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom var. lanceolatum subsp. lanceolatum
    Aster lateriflorus (L.) Britton var. hirsuticaulis (Lindl. ex DC.) Porter+
        calico aster, goblet aster, side-flowering aster
             Aster acadiensis Shinners
             Aster hirsuticaulis Lindl. ex DC.
             Aster lateriflorus (L.) Britton var. tenuipes Wiegand
             Aster tradescantii L.
             Aster tradescantii L. var. saxatilis (Fernald) House
             Aster vimineus Lam. var. saxatilis Fernald
             Symphyotrichum lateriflorum (L.) A.Löve & D.Löve var. hirsuticaule (Lindl. ex DC.) G.L.Nesom
             Symphyotrichum lateriflorum (L.) A.Löve & D.Löve var. tenuipes (Wiegand) G.L.Nesom
             Symphyotrichum tradescantii (L.) G.L.Nesom
    Aster lateriflorus (L.) Britton var. lateriflorus +
        calico aster, goblet aster, side-flowering aster
             Aster vimineus Lam.
             Solidago lateriflora L.
             Symphyotrichum lateriflorum (L.) A.Löve & D.Löve
             Symphyotrichum lateriflorum (L.) A.Löve & D.Löve var. lateriflorum
    Aster prenanthoides Muhl. ex Willd.*+
        crooked aster, crooked-stem aster, zigzag aster
             Aster prenanthoides Muhl. ex Willd. f. milwaukeensis Benke
             Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom
    Aster puniceus L.*+
        bristly aster, purple-stem aster, swamp aster
             Aster conduplicatus E.S.Burgess
             Aster forwoodii S.Watson
             Aster puniceus L. f. albiflorus (Farw.) Shinners
             Aster puniceus L. f. colbyi (Benke) Shinners
             Aster puniceus L. f. glabratus Shinners
             Aster puniceus L. var. albiflorus Farw.
             Aster puniceus L. var. calvus Shinners
             Aster puniceus L. var. colbyi Benke
             Aster puniceus L. var. compactus Fernald
             Aster puniceus L. var. demissus Lindl.
             Aster puniceus L. var. monocephalus Farw.
             Aster puniceus L. var. oligocephalus Fernald
             Aster puniceus L. var. puniceus
             Symphyotrichum puniceum (L.) A.Löve & D.Löve
             Symphyotrichum puniceum (L.) A.Löve & D.Löve var. puniceum
    Aster sagittifolius Wedem. ex Willd.*+
        arrow-leaved aster
             Aster cordifolius L. subsp. sagittifolius
             Aster cordifolius L. var. sagittifolius (Wedem. ex Willd.) A.G.Jones
             Aster hirtellus Lindl. ex DC.
             Aster sagittifolius Wedem. ex Willd. f. hirtellus (Lindl. ex DC.) Shinners
             Aster sagittifolius Wedem. ex Willd. var. glomerellus Farw.
             Aster sagittifolius Wedem. ex Willd. var. urophyllus (Lindl.) E.S.Burgess
             Aster urophyllus Lindl.
             Aster urophyllus Lindl. var. glomerellus Farw.
             Symphyotrichum urophyllum (Lindl.) G.L.Nesom
    Aster sericeus Vent.*+
        silky aster, western silvery aster
             Aster sericeus Vent. f. albiligulatus Fassett
             Lasallea sericea (Vent.) Greene
             Symphyotrichum sericeum (Vent.) G.L.Nesom
             Virgulus sericeus (Vent.) Reveal & Keener
    Aster umbellatus Mill. var. pubens A.Gray+
        hairy flat-top aster, parasol aster
             Aster pubentior Cronquist
             Aster sericocarpoides (Small) K.Schum.
             Aster umbellatus Mill. var. latifolius A.Gray
             Doellingeria pubens (A.Gray) Rydb.
             Doellingeria sericocarpoides Small
             Doellingeria umbellata (Mill.) Nees subsp. pubens
             Doellingeria umbellata (Mill.) Nees var. latifolia (A.Gray) House
             Doellingeria umbellata (Mill.) Nees var. pubens (A.Gray) Britton
  Genus: Bidens
    Bidens cernuus L.*+
        nodding beggar-ticks, nodding bur-marigold
             Bidens cernuus L. f. discoideus (Wimm. & Grab.) Briq. & Cavill.
             Bidens cernuus L. f. minimus (Huds.) Larss.
             Bidens cernuus L. var. dentatus (Nutt.) B.Boivin
             Bidens cernuus L. var. ellipticus Wiegand
             Bidens cernuus L. var. integrus Wiegand
             Bidens cernuus L. var. minimus (Huds.) Pursh
             Bidens cernuus L. var. oligodontus Fernald & H.St.John
             Bidens cernuus L. var. radiatus DC.
             Bidens glaucescens Greene
             Bidens minimus Huds.
    Bidens connatus Muhl. ex Willd.*+
        purple-stem beggar-ticks, purple-stemmed tickseed
             Bidens connatus Muhl. ex Willd. var. ambiversus Fassett
             Bidens connatus Muhl. ex Willd. var. anomalus Farw.
             Bidens connatus Muhl. ex Willd. var. connatus
             Bidens connatus Muhl. ex Willd. var. fallax (Warnst.) Sherff
             Bidens connatus Muhl. ex Willd. var. gracilipes Fernald
             Bidens connatus Muhl. ex Willd. var. inundatus Fernald
             Bidens connatus Muhl. ex Willd. var. petiolatus (Nutt.) Farw.
             Bidens connatus Muhl. ex Willd. var. pinnatus S.Watson
             Bidens connatus Muhl. ex Willd. var. submuticus Fassett
             Bidens connatus Muhl. ex Willd. var. typicus Fassett
             Bidens petiolatus Nutt.
             Bidens tripartitius L. var. fallax Warnst.
    Bidens coronatus (L.) Britton*+
        northern tickseed-sunflower, tall swamp marigold
             Bidens coronatus (L.) Britton var. brachyodontus Fernald
             Bidens coronatus (L.) Britton var. tenuilobus (A.Gray) Sherff
             Bidens coronatus (L.) Britton var. trichospermus (Michx.) Fernald
             Bidens trichospermus (Michx.) Britton
             Coreopsis trichosperma Michx.
             Coreopsis trichosperma Michx. var. tenuiloba A.Gray
  Genus: Cichorium
    Cichorium intybus L.*+
        blue-sailors, chicory
             Cichorium intybus L. f. albiflorum Neuman
             Cichorium intybus L. f. roseum Neuman
  Genus: Cirsium
    Cirsium arvense (L.) Scop.*+
        Canada thistle, creeping thistle, field thistle
             Carduus arvensis (L.) Robson
             Cirsium arvense (L.) Scop. f. albiflorum (E.L.Rand & Redfield) Ralph Hoffm.
             Cirsium arvense (L.) Scop. var. argenteum (Vest) Fiori
             Cirsium arvense (L.) Scop. var. horridum Wimm. & Grab.
             Cirsium arvense (L.) Scop. var. integrifolium Wimm. & Grab.
             Cirsium arvense (L.) Scop. var. mite Wimm. & Grab.
             Cirsium arvense (L.) Scop. var. vestitum Wimm. & Grab.
             Cirsium incanum (Gmel.) Fisch.
             Cirsium setosum (Willd.) Besser ex M.Bieb.
             Cnicus arvensis (L.) Roth
             Cnicus arvensis (L.) Roth f. albiflorum E.L.Rand & Redfield
             Serratula arvensis L.
    Cirsium discolor (Muhl. ex Willd.) Spreng.*+
        field thistle, pasture thistle, prairie thistle
             Carduus discolor (Muhl. ex Willd.) Nutt.
             Cirsium discolor (Muhl. ex Willd.) Spreng. f. albiflorum (Britton) House
    Cirsium hillii (Canby) Fernald*+
        Hill's thistle, hollow-rooted thistle, prairie thistle
             Cirsium pumilum (Nutt.) Spreng. subsp. hillii
             Cirsium pumilum (Nutt.) Spreng. var. hillii (Canby) B.Boivin
             Cnicus hillii Canby
    Cirsium muticum Michx.*+
        swamp thistle
             Carduus muticus (Michx.) Pers.
             Cirsium bigelovii DC.
             Cirsium muticum Michx. f. lactiflorum Fernald
             Cirsium muticum Michx. var. monticola Fernald
             Cirsium muticum Michx. var. subpinnatifidum (Britton) Fernald
    Cirsium vulgare (Savi) Ten.*+
        bull thistle
             Carduus lanceolatus L.
             Carduus vulgaris Savi
             Cirsium lanceolatum (L.) Scop., non Hill
             Cirsium lanceolatum (L.) Scop. var. hypoleucum DC.
  Genus: Conyza
    Conyza canadensis (L.) Cronquist var. canadensis *+
        Canadian horseweed, fleabane, hogweed
             Erigeron canadensis L.
             Erigeron canadensis L. f. coloratus Fassett
             Leptilon canadense (L.) Britton
  Genus: Coreopsis
    Coreopsis palmata Nutt.*+
        finger tickseed, prairie coreopsis, prairie tickseed, stiff tickseed
  Genus: Erigeron
    Erigeron annuus (L.) Pers.*+
        annual fleabane, eastern daisy fleabane
             Erigeron annuus (L.) Pers. f. discoideus Vict. & J.Rousseau
             Erigeron annuus (L.) Pers. var. discoideus (Vict. & J.Rousseau) Cronquist
    Erigeron strigosus Muhl. ex Willd. var. strigosus +
        daisy fleabane, prairie fleabane, rough fleabane
             Doronicum ramosum Walter
             Erigeron annuus (L.) Pers. subsp. strigosus
             Erigeron ramosus (Walter) Britton, Sterns & Poggenb.
             Erigeron strigosus Muhl. ex Willd. f. discoideus (Robbins ex A.Gray) Fernald
             Erigeron strigosus Muhl. ex Willd. var. beyrichii (Fisch. & C.A.Mey.) Torr & A.Gray
             Erigeron strigosus Muhl. ex Willd. var. discoideus Robbins ex A.Gray
             Erigeron strigosus Muhl. ex Willd. var. eligulatus Cronquist
             Erigeron strigosus Muhl. ex Willd. var. typicus Cronquist
             Erigeron traversii Shinners
             Stenactis annua (L.) Nees subsp. strigosa
             Stenactis beyrichii Fisch. & C.A.Mey.
             Stenactis strigosa (Muhl. ex Willd.) DC.
  Genus: Eupatorium
    Eupatorium maculatum L. var. maculatum subsp. maculatum+
        spotted Joe-Pye-weed
             Eupatorium maculatum L. var. maculatum
             Eupatoriadelphus maculatus (L.) R.M.King & H.Rob.
    Eupatorium perfoliatum L. var. perfoliatum *+
        boneset, common boneset, thoroughwort
             Eupatorium perfoliatum L. f. perfoliatum
             Eupatorium perfoliatum L. f. purpureum Britton
             Eupatorium perfoliatum L. f. trifolium Fassett
             Eupatorium perfoliatum L. f. truncatum (Muhl. ex Willd.) Fassett
    Eupatorium rugosum Houtt. var. rugosum *+
        white snakeroot
             Ageratina altissima (L.) R.M.King & H.Rob.
             Ageratum altissimum L., non Eupatorium altissimum L.
             Ageratina altissima (L.) R.M.King & H.Rob. var. altissima
             Eupatorium rugosum Houtt. var. chlorolepis Fernald
             Eupatorium rugosum Houtt. var. tomentellum (B.L.Rob.) S.F.Blake
             Eupatorium rugosum Houtt. var. villicaule (Fernald) S.F.Blake
             Eupatorium urticaefolium Reichard
             Eupatorium urticaefolium Reichard var. tomentellum B.L.Rob.
  Genus: Euthamia
    Euthamia graminifolia (L.) Nutt. var. graminifolia *+
        common flat-topped goldenrod, grass-leaved goldenrod
             Chrysocoma graminifolia L.
             Euthamia floribunda Greene
             Euthamia graminifolia (L.) Nutt. var. nuttallii (Greene) W.Stone
             Euthamia nuttallii Greene
             Solidago graminifolia (L.) Salisb.
             Solidago graminifolia (L.) Salisb. var. graminifolia
             Solidago graminifolia (L.) Salisb. var. nuttallii (Greene) Fernald
             Solidago graminifolia (L.) Salisb. var. polycephala (Fernald) Fernald
             Solidago graminifolia (L.) Salisb. var. typica Rosend. & Cronquist
             Solidago hirtella (Greene) Bush
             Solidago nuttallii (Greene) Bush
             Solidago polycephala Fernald
    Euthamia gymnospermoides Greene*+
        Great Plains flat-topped goldenrod, Texas goldentop, viscid grass-leaved goldenrod
             Euthamia camporum Greene
             Euthamia chrysothamnoides Greene
             Euthamia glutinosa Rydb.
             Euthamia media Greene
             Euthamia pulverulenta Greene
             Solidago camporum (Greene) A.Nelson
             Solidago chrysothamnoides (Greene) Bush
             Solidago graminifolia (L.) Salisb. var. gymnospermoides (Greene) Croat
             Solidago graminifolia (L.) Salisb. var. media (Greene) S.K.Harris
             Solidago gymnospermoides (Greene) Fernald
             Solidago gymnospermoides (Greene) Fernald var. callosa S.K.Harris
             Solidago media (Greene) Bush
             Solidago moseleyi Fernald
             Solidago perglabra Friesner
             Solidago texensis Friesner
  Genus: Gnaphalium
    Gnaphalium obtusifolium L. var. obtusifolium *+
        cat's-foot, fragrant cudweed, old-field-balsam, old-field cudweed, rabbit-tobacco
             Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt
             Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt subsp. obtusifolium
  Genus: Helenium
    Helenium autumnale L. var. autumnale *+
        common sneezeweed
             Helenium altissimum Link
             Helenium autumnale L. var. canaliculatum (Lam.) Torr. & A.Gray
             Helenium canaliculatum Lam.
             Helenium latifolium Mill.
  Genus: Helianthus
    Helianthus giganteus L.*+
        giant sunflower, swamp sunflower, tall sunflower
             Helianthus alienus E.Watson
             Helianthus borealis E.Watson
             Helianthus exasperatus E.Watson
             Helianthus giganteus L. subsp. alienus
             Helianthus giganteus L. var. subtuberosus Britton
             Helianthus membranaceus E.Watson
             Helianthus nuttallii Torr. & A.Gray var. subtuberosus (Britton) B.Boivin
             Helianthus subtuberosus (Britton) Britton
             Helianthus validus E.Watson
    Helianthus occidentalis Riddell subsp. occidentalis*+
        few-leaved sunflower, naked-stemmed sunflower, western sunflower
             Helianthus dowellianus M.A.Curtis
             Helianthus occidentalis Riddell var. dowellianus (M.A.Curtis) Torr. & A.Gray
             Helianthus occidentalis Riddell var. occidentalis
    Helianthus pauciflorus Nutt. subsp. pauciflorus+
        few-leaved sunflower, prairie sunflower, stiff sunflower
             Helianthus laetiflorus Pers. var. rigidus (Cass.) Fernald
             Helianthus pauciflorus Nutt. var. pauciflorus
             Helianthus rigidus (Cass.) Desf.
             Helianthus rigidus (Cass.) Desf. f. flavus Deam
             Helianthus rigidus (Cass.) Desf. subsp. rigidus
             Helianthus rigidus (Cass.) Desf. var. rigidus
    Helianthus pauciflorus Nutt. subsp. subrhomboideus+
        few-leaved sunflower, stiff sunflower
             Helianthus laetiflorus Pers. var. subrhomboideus (Rydb.) Fernald
             Helianthus rigidus (Cass.) Desf. subsp. laetiflorus
             Helianthus rigidus (Cass.) Desf. subsp. subrhomboideus
             Helianthus rigidus (Cass.) Desf. var. subrhomboideus (Rydb.) Cronquist
             Helianthus subrhomboideus Rydb.
    Helianthus strumosus L.*+
        pale-leaved woodland sunflower, rough-leaved sunflower
             Helianthus montanus E.Watson
             Helianthus saxicola Small
    Helianthus tuberosus L.*+
        Jerusalem-artichoke, woodland sunflower
             Helianthus subcanescens (A.Gray) E.Watson
             Helianthus tomentosus Michx.
             Helianthus tuberosus L. var. subcanescens A.Gray
    Helianthus X laetiflorus Pers. (pro sp.) X *+
        cheerful sunflower, hybrid prairie sunflower, mountain sunflower
             Helianthus laetiflorus Pers.
             Helianthus scaberrimus Elliott
  Genus: Heliopsis
    Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald+
        false sunflower, ox-eye, sunflower-everlasting
             Heliopsis helianthoides (L.) Sweet subsp. occidentalis
             Heliopsis helianthoides (L.) Sweet subsp. scabra
             Heliopsis helianthoides (L.) Sweet var. occidentalis (T.R.Fisher) Steyerm.
             Heliopsis minor (Hook.) C.Mohr
             Heliopsis scabra Dunal
  Genus: Hieracium
    Hieracium aurantiacum L.*+
        devil's-paintbrush, grim-the-collier, orange hawkweed, red daisy
    Hieracium kalmii L.*+
        Canada hawkweed, Kalm's hawkweed
             Hieracium canadense Michx.
             Hieracium canadense Michx. var. canadense
             Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
             Hieracium columbianum Rydb.
             Hieracium kalmii L. var. fasciculatum (Pursh) Lepage
             Hieracium kalmii L. var. kalmii
             Hieracium kalmii L. var. subintegrum (Lepage) Lepage
             Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage
             Hieracium umbellatum L. var. canadense (Michx.) Breitung
             Hieracium umbellatum L. var. scabriusculum Farw.
    Hieracium longipilum Torr. ex Hook.*+
        hairy hawkweed, long-beard hawkweed, long-haired hawkweed, prairie hawkweed
    Hieracium scabrum Michx.*+
        rough hawkweed, sticky hawkweed
             Hieracium scabrum Michx. var. scabrum
             Hieracium scabrum Michx. var. tonsum Fernald & H.St.John
    Hieracium umbellatum L.+
        narrow-leaved hawkweed, northern hawkweed
             Hieracium mineapolitanum Gand.
             Hieracium scabriusculum Schwein.
             Hieracium scabriusculum Schwein. var. perhirsutum Lepage
             Hieracium scabriusculum Schwein. var. saximontanum Lepage
             Hieracium scabriusculum Schwein. var. scabriusculum
             Hieracium scabriusculum Schwein. var. scabrum (Schwein.) Lepage
             Hieracium scabriusculum Schwein. f. xanthostylum Lepage var. scabrum (Schwein.) Lepage
  Genus: Krigia
    Krigia biflora (Walter) S.F.Blake subsp. glandulifera+
        false-dandelion, orange dwarf-dandelion
             Krigia biflora (Walter) S.F.Blake f. glandulifera Fernald
  Genus: Lactuca
    Lactuca biennis (Moench) Fernald*+
        tall blue lettuce, woodland lettuce
             Lactuca biennis (Moench) Fernald f. aurea (Jenn.) Fernald
             Lactuca biennis (Moench) Fernald f. integrifolia (Torr. & A.Gray) Fernald
             Lactuca spicata auct. non (Lam.) Hitchc.
             Lactuca spicata (Lam.) Hitchc. var. integrifolia (Torr. & A.Gray) Britton
             Mulgedium spicatum auct. non (Lam.) Small
             Mulgedium spicatum (Lam.) Small var. integrifolium (Torr. & A.Gray) Small
             Sonchus biennis Moench
    Lactuca canadensis L.*+
        Canada lettuce, tall lettuce, tall wild lettuce, wild lettuce
             Lactuca canadensis L. var. canadensis
             Lactuca canadensis L. var. integrifolia (Bigelow) Torr. & A.Gray
             Lactuca canadensis L. var. latifolia Kuntze
             Lactuca canadensis L. f. exauriculata Wiegand var. latifolia Kuntze
             Lactuca canadensis L. var. longifolia (Michx.) Farw.
             Lactuca canadensis L. f. angustipes (Wiegand) Farw. var. longifolia (Michx.) Farw.
             Lactuca canadensis L. var. obovata Wiegand
             Lactuca canadensis L. var. spinulosa Jenn.
             Lactuca canadensis L. var. typica Wiegand
             Lactuca canadensis L. f. angustipes Wiegand var. typica Wiegand
             Lactuca sagittifolia Elliott
    Lactuca ludoviciana (Nutt.) Riddell+
        prairie lettuce, prairie wild lettuce, western wild lettuce
             Lactuca campestris Greene
             Lactuca campestris Greene var. typica Wiegand
             Sonchus ludovicianus Nutt.
    Lactuca serriola L.*+
        compass-plant, prickly lettuce
             Lactuca integrata (Gren. & Godr.) A.Nelson
             Lactuca scariola L.
             Lactuca scariola L. f. integrifolia (Bogenh.) Beck
             Lactuca scariola L. var. integrata Gren. & Godr.
             Lactuca serriola L. var. integrata (Gren. & Godr.) Farw.
  Genus: Leucanthemum
    Leucanthemum vulgare Lam.*+
        common daisy, field daisy, marguerite, ox-eye daisy
             Chrysanthemum leucanthemum L.
             Chrysanthemum leucanthemum L. var. boecheri B.Boivin
             Chrysanthemum leucanthemum L. var. pinnatifidum Lecoq & Lamotte
             Leucanthemum leucanthemum (L.) Rydb.
             Leucanthemum vulgare Lam. var. pinnatifidum (Lecoq & Lamotte) Moldenke
  Genus: Liatris
    Liatris aspera Michx.*+
        lacerate blazing-star, rough blazing-star, tall gay-feather
             Lacinaria aspera (Michx.) Greene
             Liatris aspera Michx. f. benkei (J.F.Macbr.) Fernald
             Liatris aspera Michx. var. aspera
             Liatris aspera Michx. var. intermedia (Lunell) Gaiser
             Liatris aspera Michx. var. typica Gaiser
             Liatris scariosa (L.) Willd. f. benkei J.F.Macbr.
    Liatris ligulistylis (A.Nelson) K.Schum.*+
        northern plains blazing-star, showy blazing-star
             Lacinaria ligulistylis A.Nelson
    Liatris pycnostachya Michx.*+
        prairie blazing-star, thick-spike blazing-star, thick-spike gay-feather
             Lacinaria bebbiana Rydb.
             Lacinaria pycnostachya (Michx.) Kuntze
             Liatris pycnostachya Michx. f. hubrichti E.S.Anderson
  Genus: Matricaria
    Matricaria discoidea DC.*+
        pineapple-weed
             Artemisia matricarioides Less.
             Chamomilla suaveolens (Pursh) Rydb.
             Lepidanthus suaveolens (Pursh) Nutt.
             Lepidotheca suaveolens (Pursh) Nutt.
             Matricaria matricarioides (Less.) Porter
             Matricaria suaveolens (Pursh) Buchenau, non L.
             Santolina suaveolens Pursh
             Tanacetum suaveolens (Pursh) Hook.
  Genus: Polymnia
    Polymnia canadensis L.*+
        pale-flowered leaf-cup, white-flowered leaf-cup
             Polymnia canadensis L. f. radiata (A.Gray) Fassett
             Polymnia canadensis L. var. radiata A.Gray
             Polymnia radiata (A.Gray) Small
  Genus: Prenanthes
    Prenanthes alba L.*+
        lion's-foot, rattlesnake-root, white-lettuce
             Nabalus albus (L.) Hook.
    Prenanthes aspera Michx.*+
        rough rattlesnake-root, rough white-lettuce
             Nabalus asperus (Michx.) Torr. & A.Gray
  Genus: Rudbeckia
    Rudbeckia hirta L. var. pulcherrima Farw.*+
        black-eyed Susan
             Rudbeckia bicolor Nutt.
             Rudbeckia hirta L. var. corymbifera Fernald
             Rudbeckia hirta L. var. lanceolata (Bisch.) Core
             Rudbeckia hirta L. var. sericea (T.V.Moore) Fernald
             Rudbeckia hirta L. var. serotina (Nutt.) Core
             Rudbeckia lanceolata Bisch.
             Rudbeckia longipes T.V.Moore
             Rudbeckia serotina Nutt.
             Rudbeckia sericea T.V.Moore
             Rudbeckia serotina Nutt. var. corymbifera (Fernald) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. lanceolata (Bisch.) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. sericea (T.V.Moore) Fernald & B.G.Schub.
    Rudbeckia laciniata L. var. laciniata +
        cut-leaved coneflower, wild golden-glow
  Genus: Silphium
    Silphium perfoliatum L. var. perfoliatum *+
        cup-plant
  Genus: Solidago
    Solidago canadensis L.*+
        Canadian goldenrod, common goldenrod
    Solidago canadensis L. var. hargeri Fernald+
        Canadian goldenrod, Harger's goldenrod
             Solidago canadensis L. var. gilvocanescens Rydb., misapplied
    Solidago flexicaulis L.*+
        broad-leaved goldenrod, zigzag goldenrod
             Solidago latifolia L.
    Solidago gigantea Aiton*+
        giant goldenrod, late goldenrod, smooth goldenrod
             Aster latissimifolius (Mill.) Kuntze var. serotinus Kuntze
             Solidago gigantea Aiton subsp. serotina
             Solidago gigantea Aiton var. gigantea
             Solidago gigantea Aiton var. leiophylla Fernald
             Solidago gigantea Aiton var. pitcheri (Nutt.) Shinners
             Solidago gigantea Aiton var. serotina (Kuntze) Cronquist
             Solidago gigantea Aiton var. shinnersii Beaudry
             Solidago pitcheri Nutt.
             Solidago serotina Aiton, non Retz.
             Solidago serotinoides A.Löve & D.Löve
             Solidago serotina Aiton var. gigantea (Aiton) A.Gray
             Solidago shinnersii (Beaudry) Beaudry
             Solidago X leiophallax Friesner X
    Solidago missouriensis Nutt. var. fasciculata Holz.+
        Missouri goldenrod
             Solidago glaberrima M.Martens
             Solidago glaberrima M.Martens var. moritura (Steele) E.J.Palmer & Steyerm.
             Solidago missouriensis Nutt. var. glaberrima (M.Martens) Rosend. & Cronquist
             Solidago moritura Steele
    Solidago nemoralis Aiton subsp. decemflora+
        field goldenrod, old-field goldenrod
             Solidago decemflora DC.
             Solidago longipetiolata Mack. & Bush
             Solidago nemoralis Aiton subsp. longipetiolata
             Solidago nemoralis Aiton var. decemflora (DC.) Fernald
             Solidago nemoralis Aiton var. longipetiolata (Mack. & Bush) E.J.Palmer & Steyerm.
             Solidago pulcherrima A.Nelson
    Solidago nemoralis Aiton subsp. nemoralis+
        dyer's-weed goldenrod, field goldenrod, gray goldenrod, old-field goldenrod
             Solidago nemoralis Aiton subsp. haleana
             Solidago nemoralis Aiton var. haleana Fernald
             Solidago nemoralis Aiton var. nemoralis
             Solidago nemoralis Aiton var. typica Rosend. & Cronquist
    Solidago speciosa Nutt. var. rigidiuscula Torr. & A.Gray+
        showy goldenrod
             Solidago rigidiuscula (Torr. & A.Gray) Porter
             Solidago speciosa Nutt. var. angustata Torr. & A.Gray
    Solidago speciosa Nutt. var. speciosa +
        showy goldenrod
             Solidago conferta Mill.
             Solidago harperi Mack.
    Solidago ulmifolia Muhl. ex Willd. var. ulmifolia *+
        elm-leaved goldenrod
  Genus: Sonchus
    Sonchus arvensis L. var. glabrescens Günther, Grab. & Wimm.*+
        marsh sow-thistle
             Sonchus arvensis L. subsp. uliginosus
             Sonchus uliginosus M.Bieb.
    Sonchus asper (L.) Hill*+
        prickly sow-thistle, spiny sow-thistle
             Sonchus asper (L.) Hill f. glandulosus Beckh.
             Sonchus asper (L.) Hill f. inermis (Bisch.) Beck
             Sonchus asper (L.) Hill var. inermis Bisch.
             Sonchus asper (L.) Hill f. gracilis A.F.Schwarz var. inermis Bisch.
             Sonchus asper (L.) Hill var. pungens Bisch.
  Genus: Tanacetum
    Tanacetum vulgare L.*+
        common tansy, golden-buttons, tansy
             Chrysanthemum vulgare (L.) Bernh.
             Tanacetum vulgare L. f. crispum (L.) Fernald
             Tanacetum vulgare L. var. crispum L.
  Genus: Taraxacum
    Taraxacum laevigatum (Willd.) DC.+
        red-seeded dandelion, rock dandelion
             Leontodon erythrospermum (Andrz.) Britton
             Taraxacum disseminatum G.E.Haglund
             Taraxacum erythrospermum Andrz. ex Besser
             Taraxacum lacistophyllum (Dahlst.) Raunk.
             Taraxacum scanicum Dahlst.
  Genus: Tragopogon
    Tragopogon dubius Scop.*+
        fistulous goat's-beard, greater sand goat's-beard, yellow salsify
             Tragopogon dubius Scop. subsp. major
             Tragopogon major Jacq.
  Genus: Vernonia
    Vernonia fasciculata Michx. subsp. fasciculata*+
        common ironweed, prairie ironweed, smooth ironweed
             Vernonia fasciculata Michx. var. fasciculata
  Genus: Xanthium
    Xanthium strumarium L. var. canadense (Mill.) Torr. & A.Gray+
        common cocklebur, rough cocklebur
             Xanthium acerosum Greene
             Xanthium californicum Greene
             Xanthium californicum Greene var. rotundifolium Widder
             Xanthium campestre Greene
             Xanthium canadense Mill.
             Xanthium cavanillesii Schouw
             Xanthium cenchroides Millsp. & Sherff
             Xanthium commune Britton
             Xanthium echinatum Murray
             Xanthium glanduliferum Greene
             Xanthium italicum Moretti
             Xanthium macounii Britton
             Xanthium oligacanthum Piper
             Xanthium oviforme Wallr.
             Xanthium pensylvanicum Wallr.
             Xanthium saccharatum Wallr.
             Xanthium speciosum Kearney
             Xanthium strumarium L. subsp. italicum
             Xanthium strumarium L. var. oviforme (Wallr.) M.Peck
             Xanthium strumarium L. var. pensylvanicum (Wallr.) M.Peck
             Xanthium varians Greene
Family: Balsaminaceae
  Genus: Impatiens
    Impatiens capensis Meerb.*+
        orange jewelweed, orange touch-me-not, spotted touch-me-not
             Impatiens biflora Walter
             Impatiens capensis Meerb. f. immaculata (Weath.) Fernald & B.G.Schub.
             Impatiens fulva Nutt.
             Impatiens noli-tangere L. subsp. biflora
             Impatiens nortonii Rydb.
    Impatiens pallida Nutt.*+
        pale touch-me-not, yellow jewelweed, yellow touch-me-not
Family: Berberidaceae
  Genus: Caulophyllum
    Caulophyllum thalictroides (L.) Michx.*+
        blue cohosh, papoose-root, squaw-root
             Caulophyllum thalictroides (L.) Michx. var. thalictroides
             Leontice thalictroides L.
Family: Betulaceae
  Genus: Alnus
    Alnus incana (L.) Moench subsp. rugosa*+
        mountain alder, speckled alder, swamp alder
             Alnus glauca Michx.
             Alnus incana (L.) Moench f. tomophylla Fernald
             Alnus incana (L.) Moench var. americana Regel
             Alnus rugosa (Du Roi) Spreng.
             Alnus rugosa (Du Roi) Spreng. var. americana (Regel) Fernald
             Alnus rugosa (Du Roi) Spreng. var. tomophylla (Fernald) Fernald
             Betula alnus L. var. rugosa Du Roi
  Genus: Betula
    Betula cordifolia Regel*+
        heart-leaf birch, mountain white birch
             Betula alba L. var. cordifolia (Regel) Regel
             Betula papyrifera Marshall var. cordifolia (Regel) Fernald
    Betula nigra L.*+
        black birch, red birch, river birch
             Betula rubra F.Michx.
    Betula X sandbergii Britton X *+
        Sandberg's birch
  Genus: Corylus
    Corylus americana Walter*+
        American hazelnut
             Corylus americana Walter f. missouriensis (A.DC.) Fernald
             Corylus americana Walter var. altior Fernald
             Corylus americana Walter var. indehiscens E.J.Palmer & Steyerm.
             Corylus americana Walter var. missourensis A.DC.
Family: Boraginaceae
  Genus: Cynoglossum
    Cynoglossum officinale L.*+
        common hound's-tongue, gypsy-flower
             Cynoglossum officinale L. f. bicolor (Willd.) Lehm.
  Genus: Hackelia
    Hackelia virginiana (L.) I.M.Johnst.*+
        beggar's-lice, stickseed, wild comfrey
             Lappula virginiana (L.) Greene
             Myosotis virginiana L.
  Genus: Lithospermum
    Lithospermum canescens (Michx.) Lehm.*+
        hoary puccoon
             Batschia canescens Michx.
    Lithospermum caroliniense (Walter ex J.F.Gmel.) MacMill. subsp. croceum*+
        Carolina puccoon, hairy puccoon, plains puccoon
             Batschia gmelinii Michx.
             Lithospermum caroliniense (Walter ex J.F.Gmel.) MacMill. var. croceum (Fernald) Cronquist
             Lithospermum croceum Fernald
             Lithospermum gmelinii (Michx.) Hitchc.
  Genus: Myosotis
    Myosotis verna Nutt.+
        early scorpion-grass, white forget-me-not
             Myosotis virginica auct. non (L.) Britton, Sterns & Poggenb.
Family: Brassicaceae
  Genus: Arabis
    Arabis laevigata (Muhl. ex Willd.) Poir. var. laevigata *+
        smooth bank-cress, smooth rock-cress
             Arabis heterophylla Nutt.
             Arabis lyrifolia DC.
             Arabis viridis Harger var. heterophylla (Nutt.) Farw.
             Turritis laevigata Muhl. ex Willd.
    Arabis lyrata L.*+
        lyrate rock-cress, sand cress
             Arabis ambigua DC. var. glabra DC.
             Arabis lyrata L. var. glabra (DC.) M.Hopkins
             Arabis lyrata L. var. lyrata
             Arabis lyrata L. var. occidentalis S.Watson
             Arabis lyrata L. var. typica M.Hopkins
             Arabis lyrata L. f. parvisiliqua M.Hopkins var. typica M.Hopkins
  Genus: Barbarea
    Barbarea vulgaris R.Br.*+
        garden yellow-rocket, winter-cress, yellow-rocket
             Barbarea arcuata (Opiz ex J.Presl & C.Presl) Rchb.
             Barbarea stricta Andrz.
             Barbarea vulgaris R.Br. var. arcuata (Opiz ex J.Presl & C.Presl) Fr.
             Barbarea vulgaris R.Br. var. brachycarpa Rouy & Foucaud
             Barbarea vulgaris R.Br. var. longisiliquosa Carion
             Barbarea vulgaris R.Br. var. sylvestris Fr.
             Campe barbarea (L.) W.Wight ex Piper
             Campe stricta (Andrz.) W.Wight ex Piper
  Genus: Brassica
    Brassica juncea (L.) Czern.*+
        brown mustard, Chinese mustard, Indian mustard
             Brassica integrifolia (Willd.) Rupr.
             Brassica japonica Thunb.
             Brassica juncea (L.) Czern. var. crispifolia L.H.Bailey
             Brassica juncea (L.) Czern. var. japonica (Thunb.) L.H.Bailey
             Brassica juncea (L.) Czern. var. juncea
             Brassica willdenowii Boiss.
             Sinapis juncea L.
  Genus: Capsella
    Capsella bursa-pastoris (L.) Medik.*+
        shepherd's-purse
             Bursa bursa-pastoris (L.) Britton
             Bursa bursa-pastoris (L.) Britton var. bifida Crép.
             Bursa gracilis Gren.
             Bursa rubella (Reut.) Druce
             Capsella bursa-pastoris (L.) Medik. f. arachnoidea Hus
             Capsella rubella Reut.
             Thlaspi bursa-pastoris L.
  Genus: Cardamine
    Cardamine concatenata (Michx.) O.Schwarz*+
        cut-leaved toothwort, five-parted toothwort
             Cardamine laciniata (Muhl. ex Willd.) A.W.Wood
             Dentaria concatenata Michx.
             Dentaria concatenata Michx. var. coalescens Fernald
             Dentaria laciniata Muhl. ex Willd.
             Dentaria laciniata Muhl. ex Willd. var. integra (O.E.Schulz) Fernald
    Cardamine pensylvanica Muhl. ex Willd.*+
        Pennsylvania bitter-cress
             Cardamine hirsuta L. var. pensylvanica Muhl. ex Willd.
             Cardamine pensylvanica Muhl. ex Willd. var. brittoniana Farw.
  Genus: Erucastrum
    Erucastrum gallicum (Willd.) O.E.Schulz*+
        common dog-mustard, dog-mustard
             Brassica erucastrum L.
             Erucastrum pollichii Schimp. & Spenn.
             Sisymbrium gallicum Willd.
  Genus: Erysimum
    Erysimum cheiranthoides L.*+
        worm-seed mustard, worm-seed wallflower
             Cheirinia cheiranthoides (L.) Link
             Erysimum cheiranthoides L. subsp. altum
  Genus: Lepidium
    Lepidium densiflorum Schrad. var. densiflorum +
        prairie pepper-weed, small peppergrass
             Lepidium apetulum auct. non Willd.
             Lepidium densiflorum Schrad. var. typicum Thell.
             Lepidium neglectum Thell.
             Lepidium texanum Buckley
    Lepidium virginicum L. var. virginicum *+
        common peppergrass, poor-man's-pepper, Virginia pepper-weed
             Lepidium virginicum L. var. typicum C.L.Hitchc.
  Genus: Rorippa
    Rorippa palustris (L.) Besser subsp. fernaldiana+
        Fernald's yellow-cress, marsh-cress
             Rorippa hispida (Desv.) Britton var. glabrata Lunell
             Rorippa islandica (Oeder) Borbás subsp. fernaldiana
             Rorippa islandica (Oeder) Borbás var. fernaldiana Butters & Abbe
             Rorippa islandica (Oeder) Borbás var. glabra (O.E.Schulz) Welsh & Reveal
             Rorippa islandica (Oeder) Borbás var. glabrata (Lunell) Butters & Abbe
             Rorippa palustris (L.) Besser subsp. glabra
             Rorippa palustris (L.) Besser var. fernaldiana (Butters & Abbe) Stuckey subsp. glabra
             Rorippa palustris (L.) Besser var. cernua (Nutt.) Stuckey
             Rorippa palustris (L.) Besser var. dictyota (Greene) Stuckey
             Rorippa palustris (L.) Besser var. elongata Stuckey
             Rorippa palustris (L.) Besser var. fernaldiana (Butters & Abbe) Stuckey
             Rorippa palustris (L.) Besser var. glabrata (Lunell) Stuckey
             Rorippa palustris (L.) Besser var. glabra (O.E.Schulz) Stuckey
  Genus: Sisymbrium
    Sisymbrium altissimum L.*+
        tall tumble mustard
             Norta altissima (L.) Britton
    Sisymbrium officinale (L.) Scop.*+
        hedge-mustard
             Erysimum officinale L.
             Sisymbrium officinale (L.) Scop. var. leiocarpum DC.
             Sisymbrium officinale (L.) Scop. var. officinale
  Genus: Thlaspi
    Thlaspi arvense L.*+
        field pennycress
Family: Cactaceae
  Genus: Opuntia
    Opuntia fragilis (Nutt.) Haw.*+
        brittle prickly-pear, fragile prickly-pear, little prickly-pear
             Cactus fragilis Nutt.
             Opuntia brachyarthra Engelm. & J.M.Bigelow
             Opuntia fragilis (Nutt.) Haw. var. brachyarthra (Engelm. & J.M.Bigelow) J.M.Coult.
             Opuntia fragilis (Nutt.) Haw. var. denudata Wiegand & Backeb.
             Opuntia fragilis (Nutt.) Haw. var. fragilis
             Opuntia schweriniana K.Schum.
Family: Caesalpiniaceae
  Genus: Chamaecrista
    Chamaecrista fasciculata (Michx.) Greene*+
        golden cassia, locust-weed, partridge pea, sleeping-plant
             Cassia brachiata (Pollard) J.F.Macbr.
             Cassia chamaecrista L.
             Cassia fasciculata Michx.
             Cassia fasciculata Michx. var. brachiata (Pollard) Pullen ex Isely
             Cassia fasciculata Michx. var. depressa (Pollard) J.F.Macbr.
             Cassia fasciculata Michx. var. ferrisiae (Britton ex Britton & Rose) B.L.Turner
             Cassia fasciculata Michx. var. macrosperma Fernald
             Cassia fasciculata Michx. var. puberula (Greene) J.F.Macbr.
             Cassia fasciculata Michx. var. robusta (Pollard) J.F.Macbr.
             Cassia fasciculata Michx. var. rostrata (Wooton & Standl.) B.L.Turner
             Cassia fasciculata Michx. var. tracyi (Pollard) J.F.Macbr.
             Cassia mississippiensis Pollard
             Cassia robusta (Pollard) Pollard
             Cassia rostrata (Wooton & Standl.) Tidestr. ex Tidestr.
             Chamaecrista brachiata Pollard
             Chamaecrista depressa (Pollard) Greene
             Chamaecrista fasciculata (Michx.) Greene var. macrosperma (Fernald) C.F.Reed
             Chamaecrista littoralis Pollard
             Chamaecrista mississippiensis (Pollard) Pollard ex A.Heller
             Chamaecrista robusta (Pollard) Pollard ex A.Heller
             Chamaecrista rostrata Wooton & Standl.
             Chamaecrista tracyi Pollard
Family: Campanulaceae
  Genus: Campanula
    Campanula americana L.*+
        American bellflower, tall bellflower
             Campanulastrum americanum (L.) Small
             Campanula americana L. var. illinoensis (Fresen.) Farw.
    Campanula rotundifolia L.*+
        bluebell, bluebell bellflower, harebell
             Campanula alaskana (A.Gray) W.Wight ex J.P.Anderson
             Campanula dubia A.DC.
             Campanula heterodoxa Bong.
             Campanula intercedens Witasek
             Campanula petiolata A.DC.
             Campanula rotundifolia L. var. alaskana A.Gray
             Campanula rotundifolia L. var. intercedens (Witasek) Farw.
             Campanula rotundifolia L. var. lancifolia Mert. & W.D.J.Koch
             Campanula rotundifolia L. var. petiolata (A.DC.) J.K.Henry
             Campanula rotundifolia L. var. velutina A.DC.
             Campanula sacajaweana M.Peck
Family: Cannabaceae
  Genus: Humulus
    Humulus lupulus L. var. lupuloides E.Small+
        common hop, hop
             Humulus americanus Nutt.
             Humulus lupulus L. subsp. americanus
Family: Caprifoliaceae
  Genus: Diervilla
    Diervilla lonicera Mill.*+
        northern bush-honeysuckle
             Diervilla diervilla (L.) MacMill.
             Diervilla lonicera Mill. var. hypomalaca Fernald
             Diervilla lonicera Mill. var. lonicera
             Diervilla trifida Moench
  Genus: Lonicera
    Lonicera dioica L. var. glaucescens (Rydb.) Butters+
        wild honeysuckle
             Lonicera glaucescens Rydb.
    Lonicera tatarica L.*+
        Tartarian honeysuckle
             Lonicera tatarica L. f. albiflora (DC.) House
             Lonicera tatarica L. var. xanthocarpa Endl.
             Xylosteum tataricum (L.) Medik.
    Lonicera xylosteum L.*+
        dwarf honeysuckle, European fly honeysuckle
    Lonicera X bella Zabel X *+
        showy bush honeysuckle, white-bell honeysuckle
  Genus: Sambucus
    Sambucus canadensis L. var. canadensis *+
        American elder, elderberry
             Sambucus canadensis L. var. laciniata A.Gray
             Sambucus nigra L. subsp. canadensis
  Genus: Symphoricarpos
    Symphoricarpos orbiculatus Moench*+
        buck-brush, coral-berry, Indian currant
             Symphoricarpos symphoricarpos (L.) MacMill.
  Genus: Triosteum
    Triosteum perfoliatum L.*+
        feverwort, late horse-gentian, tinker's-weed, wild-coffee
             Triosteum perfoliatum L. var. perfoliatum
  Genus: Viburnum
    Viburnum lentago L.*+
        nannyberry, sheepberry
             Viburnum X vetteri Zabel X
    Viburnum opulus L. subsp. trilobum*+
        American cranberry-bush, cranberry viburnum, high-bush cranberry
             Viburnum opulus L. var. americanum Aiton
             Viburnum opulus L. var. trilobum (Marshall) McAtee
             Viburnum trilobum Marshall
    Viburnum rafinesquianum Schult.*+
        arrow-wood, downy arrow-wood
Family: Caryophyllaceae
  Genus: Agrostemma
    Agrostemma githago L.+
        corn cockle
  Genus: Arenaria
    Arenaria lateriflora L.*+
        grove sandwort, wood sandwort
             Arenaria lateriflora L. var. angustifolia (Regel) H.St.John
             Arenaria lateriflora L. var. tayloriae H.St.John
             Moehringia lateriflora (L.) Fenzl
             Moehringia lateriflora (L.) Fenzl var. angustifolia Regel
  Genus: Cerastium
    Cerastium arvense L. subsp. arvense+
        field chickweed, starry grasswort
    Cerastium fontanum Baumg. emend Jalas subsp. vulgare*+
        big mouse-ear chickweed, common chickweed, common mouse-ear, mouse-ear chickweed
             Cerastium adsurgens Greene
             Cerastium fontanum Baumg. subsp. holosteoides
             Cerastium fontanum Baumg. subsp. triviale
             Cerastium holosteoides Fr.
             Cerastium holosteoides Fr. var. vulgare (Hartm.) Hyl.
             Cerastium triviale Link
             Cerastium vulgatum L. 1762, non 1755
             Cerastium vulgare Hartm.
             Cerastium vulgatum L. f. glandulosum (Boenn.) Druce var. hirsutum Fr.
             Cerastium vulgatum L. f. hirsutum var. hirsutum Fr.
             Cerastium vulgatum L. var. hirsutum Fr.
             Cerastium vulgatum L. var. holosteoides (Fr.) Wahlenb.
  Genus: Paronychia
    Paronychia fastigiata (Raf.) Fernald var. fastigiata +
        hairy forked nail-wort, low forked chickweed
             Anychia fastigiata Raf.
             Anychia polygonoides Raf.
             Paronychia fastigiata (Raf.) Fernald var. typica Fernald
  Genus: Saponaria
    Saponaria officinalis L.*+
        bouncing-bet, soapwort
             Lychnis saponaria Jess.
  Genus: Silene
    Silene latifolia Poir. subsp. alba*+
        bladder campion, white campion, white cockle
             Lychnis alba Mill.
             Lychnis pratensis Rafn
             Lychnis vespertina Sibth.
             Lychnis X loveae B.Boivin X
             Melandrium album (Mill.) Garcke
             Silene alba (Mill.) E.H.L.Krause
             Silene pratensis (Rafn) Godr. & Gren.
             Silene pratensis (Rafn) Godr. & Gren. subsp. pratensis
    Silene nivea (Nutt.) Muhl. ex Otth+
        evening campion, snowy campion, white campion
             Cucubalus niveus Nutt.
    Silene noctiflora L.*+
        night-flowering catchfly, sticky cockle
             Melandrium noctiflorum (L.) Fr.
  Genus: Stellaria
    Stellaria media (L.) Vill.*+
        common chickweed
             Alsine media L.
Family: Celastraceae
  Genus: Celastrus
    Celastrus scandens L.*+
        American bittersweet, climbing bittersweet
  Genus: Euonymus
    Euonymus atropurpurea Jacq. var. atropurpurea *+
        burning-bush, eastern wahoo
             Evonymus atropurpurea Jacq.
Family: Ceratophyllaceae
  Genus: Ceratophyllum
    Ceratophyllum demersum L.*+
        coon's-tail, hornwort
             Ceratophyllum apiculatum Cham.
             Ceratophyllum demersum L. var. apiculatum (Cham.) Asch.
             Ceratophyllum demersum L. var. apiculatum (Cham.) Garcke
Family: Chenopodiaceae
  Genus: Cycloloma
    Cycloloma atriplicifolium (Spreng.) J.M.Coult.*+
        winged pigweed
             Cyclolepis platyphylla (Michx.) Moq.
             Cycloloma platyphyllum (Michx.) Moq.
             Kochia atriplicifolia (Spreng.) Roth
             Salsola atriplicifolia Spreng.
             Salsola platyphylla Michx.
Family: Cistaceae
  Genus: Helianthemum
    Helianthemum bicknellii Fernald*+
        Bicknell's rock-rose, hoary frostweed, rock-rose
             Crocanthemum bicknellii (Fernald) Barnhart
             Crocanthemum majus sensu Britton
    Helianthemum canadense (L.) Michx.*+
        common rock-rose, long-branch frostweed
             Cistus canadensis L.
             Crocanthemum canadense (L.) Britton
             Helianthemum canadense (L.) Michx. var. sabulonum Fernald
  Genus: Lechea
    Lechea intermedia Legg. ex Britton var. intermedia *+
        intermediate pinweed, large-pod pinweed
             Lechea intermedia Legg. ex Britton var. typica Hodgdon
    Lechea stricta Legg. ex Britton*+
        bushy pinweed, prairie pinweed
Family: Commelinaceae
  Genus: Tradescantia
    Tradescantia ohiensis Raf.*+
        blue-jacket, common spiderwort, smooth spiderwort
             Tradescantia canaliculata Raf.
             Tradescantia foliosa Small
             Tradescantia incarnata Small
             Tradescantia ohiensis Raf. var. foliosa (Small) MacRoberts
             Tradescantia reflexa Raf.
             Tradescantia reflexa Raf. f. albiflora Slavin & Nieuwl.
             Tradescantia reflexa Raf. f. lesteri Standl.
Family: Cornaceae
  Genus: Cornus
    Cornus amomum Mill. var. schuetzeana (C.A.Mey.) Rickett*+
        blue-fruited dogwood, silky dogwood
             Cornus amomum Mill. subsp. obliqua
             Cornus obliqua Raf.
             Cornus purpusii Koehne
             Cornus sericea L. var. schuetzeana C.A.Mey.
    Cornus racemosa Lam.*+
        gray dogwood, northern swamp dogwood, panicled dogwood
             Cornus candidissima Marshall, non Mill.
             Cornus foemina Mill., sensu Drescher (1933)
             Cornus foemina Mill. subsp. racemosa
             Cornus paniculata L'Hér.
             Swida racemosa (Lam.) Moldenke
    Cornus rugosa Lam.*+
        round-leaved dogwood
             Cornus circinata L'Hér.
             Swida rugosa (Lam.) Rydb.
    Cornus stolonifera Michx.*+
        red osier dogwood
             Cornus alba L., pro parte
             Cornus alba L. subsp. stolonifera
             Cornus alba L. var. baileyi (J.M.Coult. & W.H.Evans) B.Boivin
             Cornus alba L. var. californica (C.A.Mey.) B.Boivin
             Cornus alba L. var. interior (Rydb.) B.Boivin
             Cornus baileyi J.M.Coult. & W.H.Evans
             Cornus interior (Rydb.) N.Petersen
             Cornus instolonea A.Nelson
             Cornus sericea L.
             Cornus sericea L. subsp. sericea
             Cornus sericea L. subsp. stolonifera
             Cornus sericea L. var. interior (Rydb.) H.St.John
             Cornus stolonifera Michx. var. baileyi (J.M.Coult. & W.H.Evans) Drescher
             Cornus stolonifera Michx. var. interior (Rydb.) H.St.John
             Cornus X californica C.A.Mey. X
             Swida baileyi (J.M.Coult. & W.H.Evans) Rydb.
             Swida interior Rydb.
             Swida instolonea (A.Nelson) Rydb.
             Swida stolonifera (Michx.) Rydb.
Family: Cucurbitaceae
  Genus: Echinocystis
    Echinocystis lobata (Michx.) Torr. & A.Gray*+
        balsam-apple, wild-cucumber
             Micrampelis lobata (Michx.) Greene
             Sicyos lobata Michx.
Family: Cupressaceae
  Genus: Thuja
    Thuja occidentalis L.*+
        eastern arborvitae, northern white-cedar
Family: Cyperaceae
  Genus: Bolboschoenus
    Bolboschoenus fluviatilis (Torr.) Soják*+
        river bulrush
             Schoenoplectus fluviatilis (Torr.) M.T.Strong
             Scirpus fluviatilis (Torr.) A.Gray
             Scirpus maritimus L. var. fluviatilis Torr.
  Genus: Bulbostylis
    Bulbostylis capillaris (L.) Kunth ex C.B.Clarke*+
        hair sedge, thread-leaved beak-seed
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke subsp. capillaris
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke var. crebra Fernald
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke var. isopoda Fernald
             Fimbristylis capillaris (L.) A.Gray
             Isolepis brachyphylla (Link) Schult.
             Isolepis capillaris (L.) Roem. & Schult.
             Isolepis radiciflora Steud.
             Scirpus brachyiphyllus Link
             Scirpus capillaris L.
             Scirpus muhlenbergii Spreng.
             Stenophyllus capillaris (L.) Britton
  Genus: Carex
    Carex annectens (E.P.Bicknell) E.P.Bicknell
        yellow-headed fox sedge
             Carex bicknelii Camus, 1910, non Britton 1896
    Carex brevior (Dewey) Mack. ex Lunell*+
        fescue sedge, plains oval sedge
             Carex festucacea Schkuhr ex Willd. var. brevior (Dewey) Fernald
             Carex straminea Willd. ex Schkuhr var. brevior Dewey
    Carex bromoides Schkuhr ex Willd. subsp. bromoides*+
        brome-like sedge
             Carex bromoides Schkuhr ex Willd. var. bromoides
    Carex brunnescens (Pers.) Poir. subsp. sphaerostachya*+
        brownish sedge, green bog sedge
             Carex brunnescens (Pers.) Poir. var. gracilior Britton
             Carex brunnescens (Pers.) Poir. var. sphaerostachya (Tuck.) Kük.
             Carex buckleyi Dewey
             Carex canescens L. var. sphaerostachya Tuck.
             Carex canescens L. var. vitilis (Fr.) J.Carey
             Carex canescens L. var. vulgaris L.H.Bailey
             Carex sphaerostachya (Tuck.) Dewey
    Carex crinita Lam. var. crinita *+
        fringed sedge
             Carex crinita Lam. var. minor Boott
             Carex crinita Lam. var. morbida J.Carey
             Carex leonura Wahlenb.
    Carex davisii Schwein. & Torr.*+
        awned graceful sedge, Davis' sedge
    Carex deweyana Schwein. var. deweyana *+
        Dewey's sedge
             Carex deweyana Schwein. subsp. deweyana
    Carex emoryi Dewey ex Torr.+
        Emory's sedge
             Carex millegrana T.Holm
             Carex stricta Lam. var. elongata (Boeck.) Gleason
             Carex stricta Lam. var. emoryi (Dewey) L.H.Bailey
             Caex variabilis L.H.Bailey var. elatior L.H.Bailey
             Caex virginiana Woods var. elongata Boeck.
    Carex haydenii Dewey*+
        Hayden's sedge, long-scaled tussock sedge
             Carex acuta L. var. erecta Dewey
             Carex rousseaui Raymond
             Carex stricta Lam. var. decora L.H.Bailey
             Carex stricta Lam. var. haydenii (Dewey) Kük.
    Carex hirtifolia Mack.*+
        hairy sedge, hairy wood sedge, pubescent sedge
    Carex intumescens Rudge*+
        greater bladder sedge, shining bur sedge, swollen sedge
             Carex intumescens Rudge var. fernaldii L.H.Bailey
             Carex intumescens Rudge var. intumescens
    Carex lacustris Willd.*+
        common lake sedge, rip-gut sedge
             Carex riparia M.A.Curtis var. lacustris (Willd.) Kük.
    Carex lupulina Willd.*+
        common hop sedge, hop sedge
             Carex lupulina Willd. var. pedunculata A.Gray
             Carex X macounii Dewey X
    Carex pedunculata Muhl. ex Willd.*+
        long-stalk sedge
    Carex pensylvanica Lam.*+
        common oak sedge, Pennsylvania sedge
             Carex marginata Willd.
             Carex pensylvanica Lam. var. glumabunda Peck
             Carex pensylvanica Lam. var. marginata (Willd.) Dewey
             Carex pensylvanica Lam. var. pensylvanica
             Carex stolonifera Schwein.
    Carex projecta Mack.*+
        loose-headed oval sedge, necklace sedge
    Carex scoparia Schkuhr ex Willd. var. scoparia *+
        broom sedge, lance-fruited oval sedge
    Carex siccata Dewey*+
        dry-spiked sedge, hay sedge, hillside sedge, running savanna sedge
             Carex foenea Willd., misapplied
    Carex tuckermanii Dewey*+
        bent-seeded hop sedge, Tuckerman's sedge
    Carex typhina Michx.*+
        cat-tail sedge
             Carex squarrosa L. var. typhina (Michx.) Nutt.
             Carex typhinoides Schwein.
    Carex vulpinoidea Michx.*+
        brown fox sedge, fox sedge
             Carex microsperma Wahlenb.
             Carex multiflora Willd.
             Carex multiflora Willd. var. microsperma (Wahlenb.) Dewey
             Carex scabior Dewey
             Carex setacea Dewey
             Carex vulpinoidea Michx. var. microsperma (Wahlenb.) Dewey
             Carex vulpinoidea Michx. var. pycnocephala F.J.Herm.
             Carex vulpinoidea Michx. var. scabrior (Dewey) A.W.Wood
             Carex vulpinoidea Michx. var. segregata Farw.
             Carex vulpinoidea Michx. var. setacea (Dewey) Kük.
    Carex woodii Dewey*+
        pretty sedge, Wood's stiff sedge
             Carex colorata Mack.
             Carex tetanica Schkuhr var. woodii (Dewey) A.W.Wood
  Genus: Cladium
    Cladium mariscoides (Muhl.) Torr.*+
        smooth sawgrass, twig-rush
             Mariscus mariscoides (Muhl.) Kuntze
             Schoenus mariscoides Muhl.
  Genus: Cyperus
    Cyperus bipartitus Torr.*+
        shining flat sedge, slender flat sedge
             Cyperus niger Ruiz & Pav. var. rivularis (Kunth) V.E.Grant
             Cyperus rivularis Kunth
             Pycreus rivularis (Kunth) Palla
    Cyperus esculentus L. var. leptostachyus Boeck.
        field nut sedge, flat sedge, yellow nut sedge
             Chlorocyperus phymatodes (Muhl.) Palla
             Cyperus esculentus L. f. angustispicatus (Britton) Fernald
             Cyperus esculentus L. var. angustispicatus Britton
             Cyperus esculentus L. var. phymatodes (Muhl.) Kük.
             Cyperus fulvescens Liebm.
             Cyperus phymatodes Muhl.
             Cyperus repens Elliott
             Cyperus tuberosus Pursh
    Cyperus lupulinus (Spreng.) Marcks subsp. macilentus*+
        Great Plains flat sedge, sand cyperus, slender sand sedge
             Cyperus filiculmis Vahl var. macilentus Fernald
             Cyperus macilentus (Fernald) E.P.Bicknell
             Mariscus filiculmis (Vahl) T.Koyama
    Cyperus lupulinus (Spreng.) Marcks X C. schweinitzii Torr. subsp. macilentus+
    Cyperus odoratus L.+
        flat sedge, fragrant cyperus, rusty flat sedge
             Cyperus acicularis (Nees) Steud.
             Cyperus californicus S.Watson
             Cyperus eggersii Boeck.
             Cyperus engelmannii Steud.
             Cyperus ferax Rich.
             Cyperus ferruginescens Boeck.
             Cyperus ferax Rich. subsp. engelmanii
             Cyperus ferax Rich. subsp. speciosus
             Cyperus ferax Rich. var. speciosus (Britton) Kük.
             Cyperus haenkei J.Presl & C.Presl
             Cyperus huarmensis (Kunth) M.C.Johnst.
             Cyperus longispicatus Norton
             Cyperus macrocephalus Liebm.
             Cyperus michauxianus Schult.
             Cyperus odoratus L. var. acicularis (Schrad. ex Nees) O'Neill
             Cyperus odoratus L. var. engelmannii (Steud.) J.Rich.Carter, S.D.Jones & J.K.Wipff
             Cyperus odoratus L. var. squarrosus (Britton) Gilly
             Cyperus oxycarioides Britton
             Cyperus speciosus Vahl
             Cyperus speciosus Vahl var. ferruginescens (Boeck.) Britton
             Cyperus speciosus Vahl var. squarrosus Britton
             Cyperus squarrosus L. var. parvus Britton
             Diclidium aciculare Schrad. ex Nees
             Diclidium odoratum (L.) Schrad. ex Nees
             Mariscus ferax (Rich.) C.B.Clarke
             Mariscus huarmensis Kunth
             Torulinium confertum Desv. ex Ham.
             Torulinium eggersii (Boeck.) C.B.Clarke
             Torulinium ferax (Rich.) Urb.
             Torulinium macrocephalum (Liebm.) T.Koyama
             Torulinium michauxianum (Schult.) C.B.Clarke
             Torulinium odoratum (L.) S.S.Hooper
    Cyperus squarrosus L.*+
        bearded flat sedge
             Chlorocyperus inflexus (Muhl.) Palla
             Cyperus aristatus Rottb.
             Cyperus aristatus Rottb. var. inflexus (Muhl.) Kük.
             Cyperus aristatus Rottb. var. runyonii O'Neill
             Cyperus inflexus Muhl.
             Dichostylis aristata (Rottb.) Palla
             Mariscus squarrosus (L.) C.B.Clarke
    Cyperus strigosus L.*+
        false nut sedge, straw-colored cyperus
             Cyperus hansenii Britton
             Cyperus stenolepis Torr.
             Cyperus strigosus L. f. robustior Kunth
             Cyperus strigosus L. var. capitatus Boeck.
             Cyperus strigosus L. var. hansenii (Britton) Kük.
             Cyperus strigosus L. var. multiflorus Geise
             Cyperus strigosus L. var. robustior (Kunth) Britton
             Cyperus strigosus L. var. stenolepis (Torr.) Kük.
             Mariscus stenolepis (Torr.) C.B.Clarke
             Mariscus strigosus (L.) C.B.Clarke
    Cyperus X mesochorus Geise X +
        midland sand sedge
             Cyperus houghtonii Torr. var. uberior Kük.
             Cyperus lupulinus (Spreng.) Marcks X C. schweinitzii Torr. subsp. lupulinus
  Genus: Eleocharis
    Eleocharis acicularis (L.) Roem. & Schult.*+
        needle spike-rush
             Eleocharis acicularis (L.) Roem. & Schult. f. acicularis
             Eleocharis acicularis (L.) Roem. & Schult. f. fluitans (Döll ex Glück) Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. inundata Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. longicaulis (Desm.) Hegi
             Eleocharis acicularis (L.) Roem. & Schult. var. acicularis
             Eleocharis acicularis (L.) Roem. & Schult. var. gracilescens Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. occidentalis Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. porcata S.G.Sm.
             Eleocharis acicularis (L.) Roem. & Schult. var. submersa (Nilsson) Svenson
             Eleocharis acicularis (L.) Roem. & Schult. var. typica Svenson
             Eleocharis acicularis (L.) Roem. & Schult. f. inundata Svenson var. typica Svenson
             Scirpus acicularis L.
    Eleocharis palustris (L.) Roem. & Schult.*+
        common spike-rush, marsh spike-rush
             Eleocharis calva Torr. var. australis (Nees) H.St.John
             Eleocharis mamillata auct. non H.Lindb.
             Eleocharis palustris (L.) Roem. & Schult. var. australis Nees
             Eleocharis palustris (L.) Roem. & Schult. var. major Sond.
             Eleocharis smallii Britton
             Eleocharis smallii Britton var. major (Sond.) F.Seym.
             Scirpus palustris L.
  Genus: Lipocarpha
    Lipocarpha micrantha (Vahl) G.C.Tucker*+
        small-flowered hemicarpha
             Hemicarpha micrantha (Vahl) Pax
             Hemicarpha micrantha (Vahl) Pax var. micrantha
             Hemicarpha micrantha (Vahl) Pax var. minor (Schrad.) Friedl.
             Hemicarpha subsquarrosa (Muhl.) Nees
             Hemicarpha subsquarrosa (Muhl.) Nees var. minor (Schrad.) Nees
             Isolepis subsquarrosa (Muhl.) Schrad.
             Isolepis subsquarrosa (Muhl.) Schrad. var. minor Schrad.
             Scirpus micranthus Vahl
             Scirpus subsquarrosus Muhl.
  Genus: Schoenoplectus
    Schoenoplectus acutus (Muhl. ex Bigelow) A.Löve & D.Löve X S. tabernaemontani (C.C.Gmel.) Palla+
    Schoenoplectus heterochaetus (Chase) Soják+
        slender bulrush
             Scirpus heterochaetus Chase
             Scirpus lacustris auct. non L.
             Scirpus lacustris L. var. tenuiculmis (E.Sheld.) T.Koyama subsp. lacustris
             Scirpus lacustris L. var. tenuiculmis E.Sheld.
             Scirpus tenuiculmis (E.Sheld.) Soják
    Schoenoplectus tabernaemontani (C.C.Gmel.) Palla*+
        great bulrush, soft-stem bulrush
             Schoenoplectus lacustris (L.) Palla subsp. creber
             Schoenoplectus validus (Vahl) A.Löve & D.Löve
             Scirpus lacustris L. subsp. creber
             Scirpus lacustris L. subsp. glaucus
             Scirpus lacustris L. subsp. tabernaemontani
             Scirpus lacustris L. subsp. validus
             Scirpus lacustris L. var. tabernaemontani (C.C.Gmel.) Döll
             Scirpus tabernaemontani C.C.Gmel.
             Scirpus validus Vahl
             Scirpus validus Vahl var. creber Fernald
             Scirpus validus Vahl f. megastachyus Fernald var. creber Fernald
  Genus: Scirpus
    Scirpus cyperinus (L.) Kunth*+
        wool-grass
             Eriophorum cyperinum L.
             Scirpus cyperinus (L.) Kunth var. andrewsii (Fernald) Fernald
             Scirpus cyperinus (L.) Kunth var. condensatus Fernald
             Scirpus cyperinus (L.) Kunth var. cyperinus
             Scirpus cyperinus (L.) Kunth var. eriophorum (Michx.) Kuntze
             Scirpus cyperinus (L.) Kunth var. laxus (A.Gray) Beetle
             Scirpus cyperinus (L.) Kunth var. pelius Fernald
             Scirpus cyperinus (L.) Kunth f. condensatus (Fernald) S.F.Blake var. pelius Fernald
             Scirpus cyperinus (L.) Kunth var. rubricosus (Fernald) Gilly
             Scirpus eriophorum Michx.
             Scirpus rubricosus Fernald
Family: Dennstaedtiaceae
  Genus: Pteridium
    Pteridium aquilinum (L.) Kuhn var. latiusculum (Desv.) Underw. ex A.Heller*+
        bracken, bracken fern, eastern bracken fern
             Pteridium latiusculum (Desv.) Fr.
             Pteris latiuscula Desv.
Family: Dioscoreaceae
  Genus: Dioscorea
    Dioscorea villosa L.*+
        colic-root, wild yam, yam root
             Dioscorea cliffortiana Lam.
             Dioscorea glauca Muhl. ex Bartlett
             Dioscorea hexaphylla Raf.
             Dioscorea hirticaulis Bartlett
             Dioscorea lloydiana E.H.L.Krause
             Dioscorea longifolia Raf.
             Dioscorea megaptera Raf.
             Dioscorea paniculata Michx.
             Dioscorea paniculata Michx. var. glabrifolia Bartlett
             Dioscorea pruinosa Kunth
             Dioscorea quaternata J.F.Gmel.
             Dioscorea quaternata J.F.Gmel. var. glauca (Muhl. ex Bartlett) Fernald
             Dioscorea quaternata J.F.Gmel. var. quaternata
             Dioscorea quinata J.F.Gmel.
             Dioscorea repanda Raf.
             Dioscorea villosa L. f. glabrifolia (Bartlett) Fernald
             Dioscorea villosa L. subsp. glabrifolia
             Dioscorea villosa L. subsp. glauca
             Dioscorea villosa L. subsp. hirticaulis
             Dioscorea villosa L. subsp. quaternata
             Dioscorea villosa L. var. glabrifolia (Bartlett) S.F.Blake
             Dioscorea villosa L. var. hirticaulis (Bartlett) Ahles
             Dioscorea villosa L. var. vera Prain & Burkill
             Dioscorea villosa L. var. villosa
             Dioscorea waltheri Desf.
Family: Dryopteridaceae
  Genus: Athyrium
    Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G.Lawson*+
        common lady fern, lady fern, northeastern lady fern, northern lady fern
             Aspidium angustum Willd.
             Asplenium elatius Link
             Athyrium angustum (Willd.) C.Presl
             Athyrium angustum (Willd.) C.Presl var. elatius (Link) Butters
             Athyrium angustum (Willd.) C.Presl var. rubellum (Gilbert) Butters
             Athyrium angustum (Willd.) C.Presl var. subtripinnatum Butters
             Athyrium filix-femina (L.) Roth ex Mert. subsp. angustum
             Athyrium filix-femina (L.) Roth ex Mert. var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. f. elatius (Link) Clute var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. f. rubellum (Gilbert) Farw. var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. var. rubellum Gilbert
  Genus: Cystopteris
    Cystopteris bulbifera (L.) Bernh.*+
        bladder fern, bulblet bladder fern, bulblet fragile fern
             Filix bulbifera (L.) Underw.
             Polypodium bulbiferum L.
    Cystopteris fragilis (L.) Bernh.*+
        bladder fern, brittle bladder fern, northern fragile fern
             Cystopteris dickieana Sim
             Cystopteris fragilis (L.) Bernh. subsp. dickieana
             Cystopteris fragilis (L.) Bernh. var. angustata Lawson
             Cystopteris fragilis (L.) Bernh. var. fragilis
             Cystopteris fragilis (L.) Bernh. var. woodsioides H.Christ
             Filix fragilis (L.) Gilib.
             Polypodium fragile L.
  Genus: Deparia
    Deparia acrostichoides (Sw.) M.Kato*+
        silver false spleenwort, silvery glade fern, silvery spleenwort
             Asplenium acrostichoides Sw.
             Athyrium acrostichoides (Sw.) Diels
             Athyrium thelypterioides (Michx.) Desv.
             Athyrium thelypterioides (Michx.) Desv. f. acrostichoides (Sw.) Gilbert
             Diplazium acrostichoides (Sw.) Butters
  Genus: Diplazium
    Diplazium pycnocarpon (Spreng.) M.Broun*+
        glade fern, narrow-leaved glade fern, narrow-leaved spleenwort
             Asplenium angustifolium Michx.
             Asplenium pycnocarpon Spreng.
             Homalosorus pycnocarpos (Spreng.) Pic.Serm.
             Athyrium angustifolium (Michx.) Milde
             Athyrium pycnocarpon (Spreng.) Tidestr.
  Genus: Dryopteris
    Dryopteris carthusiana (Vill.) H.P.Fuchs*+
        spinulose wood fern, toothed wood fern
             Aspidium spinulosum (O.F.Müll.) Sw.
             Dryopteris austriaca (Jacq.) Woyn. var. spinulosa (O.F.Müll) Fiori
             Dryopteris spinulosa (O.F.Müll.) Watt
             Polypodium carthusianum Vill.
             Polypodium spinulosum O.F.Müll.
             Thelypteris spinulosa (O.F.Müll.) Nieuwl.
    Dryopteris cristata (L.) A.Gray*+
        crested shield fern, crested wood fern
             Aspidium cristatum (L.) Sw.
             Polypodium cristatum L.
             Thelypteris cristata (L.) Nieuwl.
    Dryopteris goldiana (Hook. ex Goldie) A.Gray*+
        giant wood fern, Goldie's fern, Goldie's wood fern
             Aspidium goldianum Hook. ex Goldie
             Thelypteris goldiana (Hook. ex Goldie) Nieuwl.
    Dryopteris intermedia (Muhl. ex Willd.) A.Gray*+
        fancy wood fern, glandular wood fern, intermediate wood fern
             Aspidium intermedium Muhl. ex Willd.
             Aspidium spinulosum (O.F.Müll.) Sw. var. intermedium (Muhl. ex Willd.) D.C.Eaton
             Dryopteris austriaca (Jacq.) Woyn. var. intermedia (Muhl. ex Willd.) C.V.Morton
             Dryopteris spinulosa (O.F.Müll.) Watt var. intermedia (Muhl. ex Willd.) Underw.
             Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. intermedia (Muhl. ex Willd.) Nieuwl.
  Genus: Gymnocarpium
    Gymnocarpium dryopteris (L.) Newman*+
        common oak fern, western oak fern
             Dryopteris disjuncta (Rupr.) C.V.Morton
             Dryopteris dryopteris (L.) Britton
             Dryopteris linnaeana C.Chr.
             Lastrea dryopteris (L.) Bory
             Polypodium dryopteris L.
             Phegopteris dryopteris (L.) Fée
             Thelypteris dryopteris (L.) Sloss.
  Genus: Onoclea
    Onoclea sensibilis L.*+
        sensitive fern
             Onoclea sensibilis L. f. obtusilobata (Schkuhr) Gilbert
             Onoclea sensibilis L. var. obtusilobata (Schkuhr) Torr.
Family: Equisetaceae
  Genus: Equisetum
    Equisetum arvense L.*+
        common horsetail, field horsetail
             Equisetum arvense L. f. alpestre (Wahlenb.) Luerss.
             Equisetum arvense L. f. boreale (Bong.) Klinge
             Equisetum arvense L. f. decumbens (G.Mey.) W.D.J.Koch
             Equisetum arvense L. f. ramulosum (Rupr.) Klinge
             Equisetum arvense L. f. varium (Milde) Klinge
             Equisetum arvense L. var. alpestre Wahlenb.
             Equisetum arvense L. var. boreale (Bong.) Rupr.
             Equisetum arvense L. f. pseudo-varium Vict. var. boreale (Bong.) Rupr.
             Equisetum arvense L. f. pseudo-alpestre Vict. var. boreale (Bong.) Rupr.
             Equisetum arvense L. var. campestre Wahlenb.
             Equisetum arvense L. var. riparium Farw.
             Equisetum calderi B.Boivin
    Equisetum hyemale L. subsp. affine*+
        common scouring rush, pipes, scouring rush horsetail
             Equisetum affine Engelm.
             Equisetum hyemale L. var. affine (Engelm.) A.A.Eaton
             Equisetum hyemale L. var. californicum Milde
             Equisetum hyemale L. var. pseudohyemale (Farw.) C.V.Morton
             Equisetum hyemale L. var. robustum (A.Braun) A.A.Eaton
             Equisetum prealtum Raf.
             Equisetum robustum A.Braun
             Equisetum robustum A.Braun var. affine Engelm.
             Hippochaete hyemalis (L.) Bruhin subsp. affinis
    Equisetum scirpoides Michx.*+
        dwarf scouring rush, sedge horsetail
    Equisetum sylvaticum L.*+
        wood horsetail, woodland horsetail
             Equisetum sylvaticum L. var. multiramosum (Fernald) Wherry
             Equisetum sylvaticum L. var. pauciramosum Milde
             Equisetum sylvaticum L. f. multiramosum Fernald var. pauciramosum Milde
    Equisetum X ferrissii Clute (pro sp.) X *+
        Ferriss' horsetail
             Equisetum hyemale L. var. elatum (Engelm.) C.V.Morton
             Equisetum hyemale L. var. intermedium A.A.Eaton
             Equisetum intermedium (A.A.Eaton) Rydb.
Family: Ericaceae
  Genus: Epigaea
    Epigaea repens L.*+
        trailing-arbutus
             Epigaea repens L. var. glabrifolia Fernald
  Genus: Vaccinium
    Vaccinium angustifolium Aiton*+
        early low blueberry, low-bush blueberry, low sweet blueberry
             Vaccinium angustifolium Aiton var. hypolasium Fernald
             Vaccinium angustifolium Aiton var. laevifolium House
             Vaccinium angustifolium Aiton var. nigrum (A.W.Wood) Dole
             Vaccinium brittonii Porter ex E.P.Bicknell
             Vaccinium lamarckii Camp
             Vaccinium nigrum (A.W.Wood) Britton
             Vaccinium pensilvanicum Lam.
             Vaccinium pensilvanicum Lam. var. angustifolium (Aiton) A.Gray
             Vaccinium pensilvanicum Lam. var. nigrum A.W.Wood
    Vaccinium myrtilloides Michx.*+
        Canada blueberry, velvet-leaf blueberry, velvet-leaf huckleberry
             Cyanococcus canadensis (Kalm ex A.Rich.) Rydb.
             Vaccinium angustifolium Aiton var. myrtilloides (Michx.) House
             Vaccinium canadense Kalm ex A.Rich.
             Vaccinium pensilvanicum Lam. var. myrtilloides (Michx.) Fernald
Family: Euphorbiaceae
  Genus: Acalypha
    Acalypha rhomboidea Raf.*+
        rhombic copper-leaf, three-seeded-mercury
             Acalypha virginica L. var. rhomboidea (Raf.) Cooperr.
  Genus: Chamaesyce
    Chamaesyce glyptosperma (Engelm.) Small*+
        rib-seed sand-mat, ridge-seeded spurge
             Euphorbia glyptosperma Engelm.
  Genus: Euphorbia
    Euphorbia corollata L.*+
        flowering spurge
             Euphorbia corollata L. var. angustifolia Elliott
             Euphorbia corollata L. var. corollata
             Euphorbia corollata L. var. mollis Millsp.
             Euphorbia corollata L. var. paniculata (Elliott) Boiss.
             Euphorbia marilandica Greene
             Euphorbia pubentissima Michx.
             Tithymalopsis corollata (L.) Klotzsch & Garcke
             Tithymalopsis marilandica (Greene) Small
             Tithymalopsis olivacea Small
    Euphorbia cyparissias L.*+
        cypress spurge, graveyard spurge
             Galarhoeus cyparissias (L.) Small ex Rydb.
             Tithymalus cyparissias (L.) Hill
Family: Fabaceae
  Genus: Amorpha
    Amorpha canescens Pursh*+
        lead-plant
             Amorpha brachycarpa E.J.Palmer
             Amorpha canescens Pursh f. canescens
             Amorpha canescens Pursh f. glabrata (A.Gray) Fassett
             Amorpha canescens Pursh var. glabrata A.Gray
  Genus: Amphicarpaea
    Amphicarpaea bracteata (L.) Fernald*+
        American hog-peanut, hog-peanut
             Amphicarpaea bracteata (L.) Fernald var. bracteata
             Amphicarpaea bracteata (L.) Fernald var. comosa (L.) Fernald
             Amphicarpaea bracteata (L.) Fernald var. pitcheri (Torr. & A.Gray) Fassett
             Amphicarpaea comosa (L.) G.Don
             Amphicarpaea monoica (L.) Elliott
             Amphicarpaea pitcheri Torr. & A.Gray
             Falcata comosa (L.) Kuntze
             Falcata pitcheri (Torr. & A.Gray) Kuntze
             Glycine bracteata L.
             Glycine comosa L.
             Glycine monoica L.
  Genus: Apios
    Apios americana Medik.*+
        common groundnut, Indian-potato, potato-bean
             Apios americana Medik. f. pilosa Steyerm.
             Apios americana Medik. var. turrigera Fernald
             Apios tuberosa Moench
             Glycine apios L.
  Genus: Astragalus
    Astragalus canadensis L. var. canadensis *+
        Canadian milk-vetch
             Astragalus canadensis L. var. carolinianus (L.) M.E.Jones
             Astragalus canadensis L. var. longilobus Fassett
             Astragalus carolinianus L.
             Astragalus halei Rydb.
  Genus: Baptisia
    Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely*+
        large-leaved wild indigo, milky white indigo, white wild indigo
             Baptisia lactea (Raf.) Thieret var. lactea
             Baptisia leucantha Torr. & A.Gray
             Baptisia leucantha Torr. & A.Gray var. divaricata Larisey
             Baptisia leucantha Torr. & A.Gray var. pauciflora Larisey
             Baptisia pendula Larisey var. macrophylla Larisey
             Dolichos lacteus Raf.
    Baptisia bracteata Muhl. ex Elliott var. glabrescens (Larisey) Isely*+
        cream wild indigo, long-bracted wild indigo, plains wild indigo
             Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi
             Baptisia leucophaea Nutt.
             Baptisia leucophaea Nutt. var. glabrescens Larisey
  Genus: Crotalaria
    Crotalaria sagittalis L.*+
        arrowhead rattle-box, rattle-box, weedy rattle-box
             Crotalaria fruticosa Mill.
             Crotalaria sagittalis L. var. blumeriana Senn
             Crotalaria sagittalis L. var. fruticosa (Mill.) Fawc. & Rendle
             Crotalaria sagittalis L. var. oblonga Michx.
  Genus: Dalea
    Dalea candida Michx. ex Willd. var. candida +
        slender white prairie-clover, white prairie-clover
             Petalostemon candidum (Michx. ex Willd.) Michx.
    Dalea purpurea Vent. var. purpurea *+
        purple prairie-clover, violet prairie-clover
             Petalostemon molle Rydb.
             Petalostemon purpureum (Vent.) Rydb.
             Petalostemon purpureum (Vent.) Rydb. f. pubescens (A.Gray) Fassett
             Petalostemon purpureum (Vent.) Rydb. f. purpureum
             Petalostemon purpureum (Vent.) Rydb. var. molle (Rydb.) B.Boivin
  Genus: Desmodium
    Desmodium canadense (L.) DC.*+
        Canadian tick-trefoil, showy tick-trefoil
             Hedysarum canadense L.
             Meibomia canadensis (L.) Kuntze
    Desmodium glutinosum (Muhl. ex Willd.) A.W.Wood*+
        cluster-leaf tick-trefoil, pointed tick-trefoil
             Desmodium acuminatum (Michx.) DC.
             Desmodium acuminatum (Michx.) DC. f. chandonnetii (Lunell) Fassett
             Desmodium glutinosum (Muhl. ex Willd.) A.W.Wood f. chandonnetii (Lunell) B.G.Schub.
             Hedysarum acuminatum Michx.
             Hedysarum glutinosum Muhl. ex Willd.
             Meibomia acuminata (Michx.) S.F.Blake
             Meibomia grandiflora auct. non (Walter) Kuntze
             Meibomia grandiflora (Walter) Kuntze var. chandonnetii Lunell
    Desmodium nudiflorum (L.) DC.*+
        bare-stemmed tick-trefoil, naked tick-trefoil
             Desmodium nudiflorum (L.) DC. f. foliolatum (Farw.) Fassett
             Desmodium nudiflorum (L.) DC. f. nudiflorum
             Desmodium nudiflorum (L.) DC. f. personatum Fassett
             Hedysarum nudiflorum L.
             Meibomia nudiflora (L.) Kuntze
             Meibomia nudiflora (L.) Kuntze f. foliolata Farw.
  Genus: Lathyrus
    Lathyrus ochroleucus Hook.*+
        cream pea-vine, pale vetchling, white pea
    Lathyrus venosus Muhl. ex Willd.*+
        forest pea, veiny pea, veiny pea-vine
             Lathyrus oreophilus Wooton & Standl.
             Lathyrus venosus Muhl. ex Willd. subsp. arkansanus
             Lathyrus venosus Muhl. ex Willd. var. arkansanus Fassett
             Lathyrus venosus Muhl. ex Willd. var. intonsus Butters & H.St.John
             Lathyrus venosus Muhl. ex Willd. var. meridionalis Butters & H.St.John
  Genus: Lespedeza
    Lespedeza capitata Michx.*+
        round-headed bush-clover, round-headed lespedeza
             Lespedeza bicknellii House
             Lespedeza capitata Michx. var. capitata
             Lespedeza capitata Michx. var. longifolia (DC.) Torr. & A.Gray
             Lespedeza capitata Michx. var. sericea (Hook. & Arn.) Torr. & A.Gray
             Lespedeza capitata Michx. var. stenophylla Bissell & Fernald
             Lespedeza capitata Michx. var. velutina (E.P.Bicknell) Fernald
             Lespedeza capitata Michx. var. vulgaris Torr. & A.Gray
             Lespedeza longifolia DC.
             Lespedeza velutina E.P.Bicknell
  Genus: Lupinus
    Lupinus perennis L.*+
        sundial lupine, wild lupine
    Lupinus perennis L. var. occidentalis S.Watson+
        wild lupine
             Lupinus perennis L. var. occidentalis S.Watson subsp. perennis
  Genus: Melilotus
    Melilotus albus Medik.*+
        white sweet-clover
             Melilotus albus Medik. var. annuus Coe
    Melilotus officinalis (L.) Lam.*+
        yellow sweet-clover
             Trifolium melilotus-officinalis L.
  Genus: Tephrosia
    Tephrosia virginiana (L.) Pers.*+
        goat's-rue, rabbit-pea, Virginia tephrosia
             Cracca latidens Small
             Cracca mohrii Rydb.
             Cracca virginiana L.
             Tephrosia holosericea Nutt.
             Tephrosia latidens (Small) Standl.
             Tephrosia mohrii (Rydb.) Godfrey
             Tephrosia virginiana (L.) Pers. var. glabra Nutt.
             Tephrosia virginiana (L.) Pers. var. holosericea (Nutt.) Torr. & A.Gray
             Tephrosia virginiana (L.) Pers. var. virginiana
  Genus: Trifolium
    Trifolium aureum Pollich*+
        golden clover, palmate hop clover, yellow hop clover
             Trifolium agrarium L.
    Trifolium hybridum L.*+
        alsike clover
             Trifolium elegans Savi
             Trifolium hybridum L. subsp. elegans
             Trifolium hybridum L. var. elegans (Savi) Boiss.
             Trifolium hybridum L. var. pratense Rabenh.
    Trifolium pratense L.*+
        red clover
             Trifolium pratense L. f. albiflorum Puskal
             Trifolium pratense L. f. leucochraceum Asch. & Prantl
             Trifolium pratense L. f. semipurpureum (Strobl) Asch. & Graebn.
             Trifolium pratense L. var. frigidum auct. non Gaudin
             Trifolium pratense L. var. sativum (Mill.) Schreb.
             Trifolium pratense L. f. flavicans (Vis.) Hayek var. sativum (Mill.) Schreb.
  Genus: Vicia
    Vicia americana Muhl. ex Willd. subsp. americana*+
        American vetch
             Vicia americana Muhl. ex Willd. subsp. oregana
             Vicia americana Muhl. ex Willd. subsp. truncata
             Vicia americana Muhl. ex Willd. var. americana
             Vicia americana Muhl. ex Willd. var. oregana (Nutt.) A.Nelson
             Vicia americana Muhl. ex Willd. var. truncata (Nutt.) Brewer
             Vicia americana Muhl. ex Willd. var. villosa (Kellogg) F.J.Herm.
             Vicia californica Greene
             Vicia californica Greene var. madrensis Jeps.
             Vicia oregana Nutt.
             Vicia sparsifolia Nutt. ex Torr. & A.Gray var. truncata (Nutt.) S.Watson
             Vicia truncata Nutt.
    Vicia sativa L. subsp. nigra*+
        common vetch, narrow-leaved vetch, spring vetch
             Vicia angustifolia L.
             Vicia angustifolia L. var. segetalis (Thuill.) W.D.J.Koch
             Vicia angustifolia L. var. uncinata (Desf. ex Nyman) Rouy
             Vicia sativa L. var. angustifolia (L.) Ser.
             Vicia sativa L. var. nigra L.
             Vicia sativa L. var. segetalis (Thuill.) Ser.
             Vicia segetalis Thuill.
             Vicia uncinata Desf. ex Nyman
Family: Fagaceae
  Genus: Quercus
    Quercus alba L.*+
        white oak
             Quercus alba L. var. subcaerulea Pickens & M.C.Pickens
             Quercus alba L. var. subflavea Pickens & M.C.Pickens
    Quercus ellipsoidalis E.J.Hill*+
        Hill's oak, northern pin oak
             Quercus ellipsoidalis E.J.Hill var. kaposianensis J.W.Moore
    Quercus macrocarpa Michx.*+
        bur oak
             Quercus macrocarpa Michx. f. olivaeformis (F.Michx.) Trel.
             Quercus macrocarpa Michx. subsp. olivaeformis
             Quercus macrocarpa Michx. var. depressa (Nutt.) Engelm.
             Quercus macrocarpa Michx. var. macrocarpa
             Quercus macrocarpa Michx. var. olivaeformis (F.Michx.) A.Gray
             Quercus mandanensis Rydb.
             Quercus obtusiloba Michx. var. depressa Nutt.
             Quercus olivaeformis F.Michx.
    Quercus rubra L.*+
        northern red oak
             Quercus ambigua F.Michx.
             Quercus borealis F.Michx.
             Quercus borealis F.Michx. var. borealis
             Quercus borealis F.Michx. var. maxima (Marshall) Ashe
             Quercus coccinea Münchh. var. ambigua (F.Michx.) A.Gray
             Quercus maxima (Marshall) Ashe
             Quercus rubra L. var. ambigua (F.Michx.) Fernald
             Quercus rubra L. var. ambigua (F.Michx.) Houba
             Quercus rubra L. var. borealis (F.Michx.) Farw.
             Quercus rubra L. var. maxima Marshall
             Quercus rubra L. var. rubra
    Quercus velutina Lam.*+
        black oak
             Quercus tinctoria W.Bartram
             Quercus velutina Lam. f. missouriensis (Sarg.) Trel.
             Quercus velutina Lam. var. missouriensis Sarg.
Family: Fumariaceae
  Genus: Dicentra
    Dicentra cucullaria (L.) Bernh.*+
        Dutchman's-breeches
             Bicuculla cucullaria (L.) Millsp.
             Bicuculla occidentalis Rydb.
             Dicentra cucullaria (L.) Bernh. var. occidentalis (Rydb.) M.Peck
             Dicentra occidentalis (Rydb.) Fedde
             Fumaria cucullaria L.
Family: Gentianaceae
  Genus: Gentiana
    Gentiana alba Muhl. ex Nutt.*+
        cream gentian, pale gentian, yellow gentian
             Gentiana flavida A.Gray
  Genus: Gentianopsis
    Gentianopsis crinita (Froel.) Ma*+
        fringed gentian, greater fringed gentian
             Anthopogon crinitum (Froel.) Raf.
             Gentiana crinita Froel.
             Gentianella crinita (Froel.) G.Don
             Gentianella crinita (Froel.) G.Don subsp. crinita
             Gentianella crinita (Froel.) G.Don subsp. nevadensis
             Gentiana nevadensis Gilg
             Gentiana ventricosa Griseb.
Family: Geraniaceae
  Genus: Geranium
    Geranium maculatum L.*+
        Crane's-bill, spotted geranium, wild geranium
             Geranium maculatum L. f. albiflorum (Raf.) House
Family: Grossulariaceae
  Genus: Ribes
    Ribes americanum Mill.*+
        American black currant, eastern black currant, wild black currant
             Ribes americanum Mill. f. pauciglandulosum Fassett
             Ribes floridum L'Hér.
    Ribes cynosbati L.*+
        dogberry, eastern prickly gooseberry, prickly wild gooseberry
             Grossularia cynosbati (L.) Mill.
             Ribes cynosbati L. f. inerme Rehder
             Ribes cynosbati L. var. atrox Fernald
             Ribes cynosbati L. var. glabratum Fernald
             Ribes cynosbati L. var. inerme (Rehder) L.H.Bailey
             Ribes huronense Rydb.
    Ribes glandulosum Grauer*+
        skunk currant
             Ribes prostratum L'Hér.
             Ribes prostratum L'Hér. var. wisconsinum Fassett
             Ribes resinosum Pursh
    Ribes missouriense Nutt.*+
        Missouri gooseberry
             Grossularia missouriensis (Nutt.) Coville & Britton
             Ribes gracile Pursh, non Michx.
             Ribes missouriense Nutt. var. ozarkanum Fassett
    Ribes rubrum L.*+
        cherry-currant, cultivated currant, garden red currant
             Ribes sativum Syme
             Ribes sylvestre (Lam.) Mert. & W.D.J.Koch
             Ribes vulgare Lam.
    Ribes triste Pall.*+
        swamp red currant
             Ribes albinervium Michx.
             Ribes propinquum Turcz.
             Ribes rubrum L. var. alaskanum (Berger) B.Boivin
             Ribes rubrum L. var. propinquum (Turcz.) Trautv. & C.A.Mey.
             Ribes triste Pall. var. alaskanum Berger
             Ribes triste Pall. var. albinervium (Michx.) Fernald
Family: Hamamelidaceae
  Genus: Hamamelis
    Hamamelis virginiana L.*+
        American witch-hazel
             Hamamelis androgyna Walter
             Hamamelis corylifolia Moench
             Hamamelis dioica Walter
             Hamamelis macrophylla Pursh
             Hamamelis virginiana L. var. angustifolia Nieuwl.
             Hamamelis virginiana L. var. henryi Jenne
             Hamamelis virginiana L. var. macrophylla (Pursh) Nutt.
             Hamamelis virginiana L. var. orbiculata Nieuwl.
             Hamamelis virginiana L. var. parvifolia Nutt.
             Trilopus dentata Raf.
             Trilopus estivalis Raf.
             Trilopus nigra Raf.
             Trilopus nigra Raf. var. catesbiana Raf.
             Trilopus parvifolia (Nutt.) Raf.
             Trilopus rotundifolia Raf.
             Trilopus virginica (L.) Raf.
Family: Hydrocharitaceae
  Genus: Elodea
    Elodea canadensis Michx.*+
        Canadian waterweed, common waterweed
             Anacharis canadensis (Michx.) Planch.
             Anacharis canadensis (Michx.) Planch. var. planchonii (Casp.) Vict.
             Elodea brandegeae H.St.John
             Elodea ioensis Wylie
             Elodea linearis (Rydb.) H.St.John
             Elodea planchonii Casp.
             Philotria canadensis (Michx.) Britton
             Philotria linearis Rydb.
    Elodea nuttallii (Planch.) H.St.John+
        free-flowered waterweed, slender waterweed
             Anacharis nuttallii Planch.
             Anacharis occidentalis (Pursh) Vict.
             Elodea columbiana H.St.John
             Elodea minor (Engelm. ex Casp.) Farw.
             Elodea occidentalis (Pursh) H.St.John
             Philotria angustifolia (Muhl.) Britton ex Rydb.
             Philotria minor (Engelm. ex Casp.) Small
             Philotria nuttallii (Planch.) Rydb.
             Philotria occidentalis (Pursh) House
             Udora verticillata (L.f.) Spreng. var. minor Engelm. ex Casp.
Family: Hydrophyllaceae
  Genus: Hydrophyllum
    Hydrophyllum virginianum L.*+
        John's-cabbage, Shawnee-salad, Virginia water-leaf
             Hydrophyllum virginianum L. var. atranthum (Alexander) Constance
             Hydrophyllum virginianum L. var. virginianum
Family: Hypericaceae
  Genus: Hypericum
    Hypericum majus (A.Gray) Britton*+
        larger Canadian St. John's-wort
             Hypericum canadense L. var. majus A.Gray
    Hypericum punctatum Lam.*+
        spotted St. John's-wort
             Hypericum punctatum Lam. f. subpetiolatum (E.P. Bicknell ex Small) Fernald
             Hypericum subpetiolatum E.P.Bicknell ex Small
  Genus: Triadenum
    Triadenum fraseri (Spach) Gleason*+
        bog St. John's-wort, Fraser's marsh St. John's-wort
             Elodea fraseri Spach
             Hypericum virginicum L. var. fraseri (Spach) Fernald
             Triadenum virginicum (L.) Raf. subsp. fraseri
             Triadenum virginicum (L.) Raf. var. fraseri (Spach) Cooperr.
Family: Iridaceae
  Genus: Iris
    Iris virginica L. var. shrevei (Small) E.S.Anderson*+
        blue flag, Shreve's iris, southern blue flag, Virginia iris
             Iris shrevei Small
             Iris versicolor L. var. shrevei (Small) B.Boivin
  Genus: Sisyrinchium
    Sisyrinchium campestre E.P.Bicknell*+
        prairie blue-eyed-grass
             Sisyrinchium campestre E.P.Bicknell f. flaviflorum (E.P.Bicknell) Steyerm.
             Sisyrinchium campestre E.P.Bicknell var. campestre
             Sisyrinchium campestre E.P.Bicknell var. kansanum E.P.Bicknell
             Sisyrinchium flaviflorum E.P.Bicknell
             Sisyrinchium kansanum (E.P.Bicknell) Alexander
Family: Juglandaceae
  Genus: Juglans
    Juglans cinerea L.*+
        butternut, white walnut
             Wallia cinerea (L.) Alef.
Family: Juncaceae
  Genus: Juncus
    Juncus effusus L.*+
        common rush, soft rush
             Juncus conglomeratus L.
             Juncus effusus L. subsp. solutus
             Juncus effusus L. var. caeruleomontanus H.St.John
             Juncus effusus L. var. compactus auct. non Lej. & Courtois
             Juncus effusus L. var. compactus Lej. & Courtois
             Juncus effusus L. var. conglomeratus (L.) Engelm.
             Juncus effusus L. var. costulatus Fernald
             Juncus effusus L. var. decipiens of Amer. authors, not Buchenau
             Juncus effusus L. var. effusus
             Juncus effusus L. var. pylaei (Laharpe) Fernald & Wiegand
             Juncus effusus L. var. solutus Fernald & Wiegand
             Juncus griscomii Fernald
             Juncus pylaei Laharpe
    Juncus interior Wiegand+
        inland rush, interior rush
             Juncus interior Wiegand var. interior
  Genus: Luzula
    Luzula acuminata Raf. var. acuminata *+
        hairy wood rush
             Luzula carolinae S.Watson var. saltuensis (Fernald) Fernald
             Luzula saltuensis Fernald
    Luzula multiflora (Ehrh.) Lej. subsp. multiflora*+
        common wood rush
             Juncus campestris L. var. multiflorus Retz.
             Juncus multiflorus Ehrh.
             Luzula campestris (L.) DC. var. multiflora (Retz.) Celak.
Family: Lamiaceae
  Genus: Agastache
    Agastache scrophulariaefolia (Willd.) Kuntze*+
        figwort giant hyssop, purple giant hyssop
             Agastache scrophulariaefolia (Willd.) Kuntze var. mollis (Fernald) A.Heller
             Hyssopus scrophulariaefolius Willd.
             Lophanthus scrophulariaefolius (Willd.) Benth.
             Lophanthus scrophulariaefolius (Willd.) Benth. var. mollis Fernald
  Genus: Clinopodium
    Clinopodium vulgare L.*+
        wild-basil
             Clinopodium vulgare L. var. diminutum Simon
             Clinopodium vulgare L. var. neogaea (Fernald) C.F.Reed
             Satureja vulgaris (L.) Fritsch
             Satureja vulgaris (L.) Fritsch var. diminuta (Simon) Fernald & Wiegand
             Satureja vulgaris (L.) Fritsch var. neogaea Fernald
  Genus: Galeopsis
    Galeopsis tetrahit L. var. bifida (Boenn.) Lej. & Courtois+
        brittle-stem hemp-nettle, common hemp-nettle, hemp-nettle
             Galeopsis bifida Boenn.
  Genus: Hedeoma
    Hedeoma hispida Pursh*+
        rough false pennyroyal, rough pennyroyal
  Genus: Leonurus
    Leonurus cardiaca L.*+
        lion's-tail, motherwort
  Genus: Lycopus
    Lycopus americanus Muhl. ex W.P.C.Barton*+
        American water-horehound, common water-horehound
             Lycopus americanus Muhl. ex W.P.C.Barton var. longii Benner
             Lycopus americanus Muhl. ex W.P.C.Barton var. scabrifolius Fernald
             Lycopus sinuatus Elliott
    Lycopus virginicus L.*+
        bugleweed, Virginia water-horehound
  Genus: Mentha
    Mentha arvensis L. var. canadensis (L.) Kuntze*+
        field mint, wild mint
             Mentha arvensis auct. non L.
             Mentha arvensis L. subsp. borealis
             Mentha arvensis L. subsp. haplocalyx
             Mentha arvensis L. var. glabrata (Benth.) Fernald
             Mentha arvensis L. var. lanata Piper
             Mentha arvensis L. var. sativa auct. non Benth.
             Mentha arvensis L. var. villosa (Benth.) S.R.Stewart
             Mentha arvensis L. f. glabrata (Benth.) S.R.Stewart var. villosa (Benth.) S.R.Stewart
             Mentha canadensis L.
             Mentha glabrior (Hook.) Rydb.
             Mentha penardii (Briq.) Rydb.
    Mentha X gracilis Sole (pro sp.) X +
        little-leaved mint, red mint
             Mentha cardiaca J.Gerard ex Baker
             Mentha gentilis auct. non L.
             Mentha X cardiaca J.Gerard ex Baker X
             Mentha X gentilis L. var. cardiaca (J.Gerard ex Baker) B.Boivin (pro nm.) X
             Mentha X muelleriana auct. non F.W.Schultz X
  Genus: Monarda
    Monarda fistulosa L. subsp. fistulosa*+
        bee balm, wild bergamot
             Monarda fistulosa L. f. albescens Farw.
             Monarda fistulosa L. var. mollis (L.) Benth. subsp. fistulosa
             Monarda fistulosa L. var. fistulosa
             Monarda fistulosa L. var. mollis (L.) Benth.
             Monarda fistulosa L. f. albiflora (Farw.) Sherff var. mollis (L.) Benth.
             Monarda mollis L.
             Monarda mollis L. f. albiflora Farw.
             Monarda scabra Beck
    Monarda punctata L. var. villicaulis (Pennell) E.J.Palmer & Steyerm.*+
        dotted horsemint, horsemint
             Monarda punctata L. var. villicaulis (Pennell) E.J.Palmer & Steyerm. subsp. punctata
             Monarda punctata L. subsp. villicaulis
  Genus: Nepeta
    Nepeta cataria L.*+
        catnip
  Genus: Physostegia
    Physostegia virginiana (L.) Benth. subsp. virginiana*+
        false dragonhead, obedience
             Dracocephalum denticulatum Aiton
             Dracocephalum formosius (Lunell) Rydb.
             Dracocephalum virginianum L.
             Physostegia denticulata (Aiton) Britton
             Physostegia formosior Lunell
             Physostegia granulosa Fassett
             Physostegia speciosa (Sweet) Sweet
             Physostegia speciosa (Sweet) Sweet var. glabriflora Fassett
             Physostegia virginiana (L.) Benth. var. elongata B.Boivin
             Physostegia virginiana (L.) Benth. var. formosior (Lunell) B.Boivin
             Physostegia virginiana (L.) Benth. var. granulosa (Fassett) Fernald
             Physostegia virginiana (L.) Benth. var. speciosa (Sweet) A.Gray
             Physostegia virginiana (L.) Benth. var. virginiana
  Genus: Prunella
    Prunella vulgaris L. subsp. lanceolata+
        lance self-heal
             Prunella pennsylvanica Willd. var. lanceolata W.P.C.Barton
             Prunella vulgaris L. var. elongata Benth.
             Prunella vulgaris L. var. lanceolata (W.P.C.Barton) Fernald
             Prunella vulgaris L. f. iodocalyx Fernald var. lanceolata (W.P.C.Barton) Fernald
  Genus: Pycnanthemum
    Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald*+
        common mountain mint, Virginia mountain mint
  Genus: Scutellaria
    Scutellaria galericulata L.*+
        common skullcap, marsh skullcap
             Scutellaria epilobiifolia A.Ham.
             Scutellaria galericulata L. subsp. pubescens
             Scutellaria galericulata L. var. epilobiifolia (A.Ham.) Jordal
             Scutellaria galericulata L. var. pubescens Benth.
    Scutellaria lateriflora L.*+
        blue skullcap, mad-dog skullcap
             Scutellaria lateriflora L. var. lateriflora
    Scutellaria parvula Michx. var. missouriensis (Torr.) Goodman & C.A.Lawson*+
        Leonard's skullcap, smooth small skullcap
             Scutellaria ambigua Nutt.
             Scutellaria ambigua Nutt. var. missouriensis Torr.
             Scutellaria leonardii Epling
             Scutellaria nervosa Pursh var. ambigua (Nutt.) Fernald
             Scutellaria parvula Michx. var. ambigua (Nutt.) Fernald
             Scutellaria parvula Michx. var. leonardii (Epling) Fernald
  Genus: Stachys
    Stachys palustris L.*+
        hedge-nettle, marsh hedge-nettle, woundwort
    Stachys tenuifolia Willd. var. tenuifolia *+
        narrow-leaved hedge-nettle, smooth hedge-nettle
             Stachys glabra Riddell
             Stachys hispida Pursh
             Stachys palustris L. var. hispida (Pursh) B.Boivin
             Stachys tenuifolia Willd. var. hispida (Pursh) Fernald
             Stachys tenuifolia Willd. var. platyphylla Fernald
  Genus: Teucrium
    Teucrium canadense L. var. occidentale (A.Gray) E.M.McClint. & Epling*+
        American germander, western germander, wood sage
             Teucrium boreale E.P.Bicknell
             Teucrium canadense L. subsp. occidentale
             Teucrium canadense L. subsp. viscidum
             Teucrium canadense L. var. boreale (E.P.Bicknell) Shinners
             Teucrium occidentale A.Gray
             Teucrium occidentale A.Gray subsp. viscidum
             Teucrium occidentale A.Gray var. boreale (E.P.Bicknell) Fernald
    Teucrium canadense L. var. virginicum (L.) Eaton+
        American germander, Virginia germander, wood sage
Family: Lemnaceae
  Genus: Lemna
    Lemna minor L.*+
        common duckweed, lesser duckweed, small duckweed
             Lemna cyclostasa Elliott ex Schleid.
Family: Lentibulariaceae
  Genus: Utricularia
    Utricularia vulgaris L.*+
        Common bladderwort, great bladderwort
             Utricularia macrorhiza Leconte
             Utricularia vulgaris L. subsp. macrorhiza
             Utricularia vulgaris L. var. americana A.Gray
Family: Liliaceae
  Genus: Allium
    Allium tricoccum Sol. var. tricoccum *+
        ramp, wild leek
             Allium pictum Moldenke
             Allium triflorum Raf.
             Ophioscorodon tricoccum (Sol.) Wallr.
             Validallium tricoccum (Sol.) Small
  Genus: Asparagus
    Asparagus officinalis L.*+
        asparagus, common asparagus, garden asparagus
  Genus: Clintonia
    Clintonia borealis (Aiton) Raf.*+
        blue-bead-lily, corn-lily, yellow blue-bead-lily, yellow clintonia
             Dracaena borealis Aiton
  Genus: Erythronium
    Erythronium albidum Nutt.*+
        small white fawn-lily, white dog-tooth violet, white trout-lily
    Erythronium americanum Ker Gawl. subsp. americanum*+
        American trout-lily, yellow dog-tooth violet, yellow trout-lily
             Erythronium americanum Ker Gawl. f. bachii (Farw.) Dole
  Genus: Hemerocallis
    Hemerocallis fulva (L.) L.*+
        orange daylily, tawny daylily
             Hemerocallis fulva (L.) L. var. fulva
             Hemerocallis lilioasphodelus L. var. fulva L.
  Genus: Lilium
    Lilium michiganense Farw.*+
        Michigan lily, Turk's-cap lily
             Lilium canadense L. subsp. michiganense
             Lilium canadense L. var. umbelliferum (Farw.) B.Boivin
             Lilium michiganense Farw. var. umbelliferum Farw.
             Lilium michiganense Farw. var. uniflorum Farw.
    Lilium philadelphicum L.*+
        orange-cup lily, wood lily
             Lilium andinum Nutt.
             Lilium montanum A.Nelson
             Lilium philadelphicum L. var. andinum (Nutt.) Ker Gawl.
             Lilium philadelphicum L. var. montanum (A.Nelson) Wherry
             Lilium philadelphicum L. var. philadelphicum
             Lilium umbellatum Pursh
  Genus: Maianthemum
    Maianthemum canadense Desf. var. canadense +
        Canada bead-ruby, Canada mayflower, wild lily-of-the-valley
             Smilacina canadensis (Desf.) Pursh
             Unifolium canadense (Desf.) Greene
    Maianthemum canadense Desf. var. interius Fernald+
        Canada mayflower, wild lily-of-the-valley
             Maianthemum canadense Desf. subsp. interius
             Maianthemum canadense Desf. var. pubescens Gates & Ehlers
    Maianthemum racemosum (L.) Link subsp. racemosum*+
        false Solomon's-seal, false spikenard, large false Solomon's-seal, Solomon's-plume
             Convallaria racemosa L.
             Smilacina ciliata Desf.
             Smilacina flexicaulis Wender.
             Smilacina racemosa (L.) Desf. var. cylindrata Fernald
             Smilacina racemosa (L.) Desf. var. lanceolata B.Boivin
             Smilacina racemosa (L.) Desf. var. racemosa
             Smilacina racemosa (L.) Desf. var. typica Fernald
             Unifolium racemosum (L.) Britton
             Vagnera australis Rydb.
             Vagnera racemosa (L.) Morong
             Vagnera retusa Raf.
    Maianthemum stellatum (L.) Link*+
        little false Solomon's-seal, starflower Solomon's-seal, starry false Solomon's-seal
             Convallaria stellata L.
             Smilacina liliacea (Greene) F.L.Wynd
             Smilacina sessilifolia Nutt. ex Baker
             Smilacina stellata (L.) Desf.
             Smilacina stellata (L.) Desf. var. crassa Vict.
             Smilacina stellata (L.) Desf. var. mollis Farw.
             Smilacina stellata (L.) Desf. var. sessilifolia (Nutt. ex Baker) G.Hend.
             Smilacina stellata (L.) Desf. var. sylvatica Vict. & J.Rousseau
             Unifolium liliaceum Greene
             Unifolium stellautum (L.) Greene
             Vagnera liliacea (Greene) Rydb.
             Vagnera sessilifolia (Nutt. ex Baker) Greene
             Vagnera stellata (L.) Morong
  Genus: Polygonatum
    Polygonatum biflorum (Walter) Elliott*+
        giant Solomon's-seal, king Solomon's-seal, smooth Solomon's-seal, Solomon's-seal
             Convallaria biflora Walter, pro parte
             Polygonatum biflorum (Walter) Elliot var. commutatum (Schult.f.) Morong
             Polygonatum biflorum (Walter) Elliott var. melleum (Farw.) R.P.Ownbey
             Polygonatum canaliculatum auct. non (Muhl. ex Willd.) Pursh
             Polygonatum cobrense (Wooton & Standl.) R.R.Gates
             Polygonatum commutatum (Schult.f.) A.Dietr.
             Polygonatum commutatum (Schult.f.) A.Dietr. f. foliatum H.M.Clarke
             Polygonatum giganteum A.Dietr.
             Polygonatum melleum Farw.
    Polygonatum pubescens (Willd.) Pursh*+
        downy Solomon's-seal, hairy Solomon's-seal
             Convallaria pubescens Willd.
  Genus: Streptopus
    Streptopus lanceolatus (Aiton) Reveal var. longipes (Fernald) Reveal*+
        twisted-stalk
             Streptopus longipes Fernald
             Steptopus roseus Michx. subsp. longipes
             Streptopus roseus Michx. var. longipes (Fernald) Fassett
  Genus: Trillium
    Trillium cernuum L.*+
        nodding trillium, whip-poor-will flower
             Trillium cernuum L. var. cernuum
             Trillium cernuum L. var. macranthum A.J.Eames & Wiegand
    Trillium grandiflorum (Michx.) Salisb.*+
        big white trillium, great white trillium, large-flowered trillium, snow trillium, white trillium, white wake-robin
             Trillium erythrocarpum Curtis 1805, not Michx. 1803
             Trillium rhomboideum Michx. var. grandiflorum Michx.
  Genus: Uvularia
    Uvularia grandiflora Sm.*+
        large-flowered bellwort
    Uvularia sessilifolia L.*+
        sessile bellwort, sessile-leaved bellwort, straw-lily, wild-oats
             Oakesiella sessilifolia (L.) Small
             Oakesia sessilifolia (L.) S.Watson
Family: Linaceae
  Genus: Linum
    Linum sulcatum Riddell*+
        grooved yellow flax
             Cathartolinum sulcatum (Riddell) Small
             Linum sulcatum Riddell var. sulcatum
             Mesynium sulcatum (Riddell) A.Löve & D.Löve
Family: Lobeliaceae
  Genus: Lobelia
    Lobelia inflata L.*+
        Indian-tobacco
    Lobelia siphilitica L. var. siphilitica +
        great blue lobelia
             Lobelia siphilitica L. f. albiflora Britton
    Lobelia spicata Lam. var. spicata +
        pale-spike lobelia, spiked lobelia
             Lobelia bracteata Small
             Lobelia spicata Lam. var. campanulata McVaugh
             Lobelia spicata Lam. var. originalis McVaugh
             Lobelia spicata Lam. var. parviflora A.Gray
Family: Lycopodiaceae
  Genus: Diphasiastrum
    Diphasiastrum digitatum (Dill. ex A.Braun) Holub*+
        crowfoot club-moss, southern ground-cedar, southern running-pine, trailing ground-pine
             Lycopodium complanatum L. var. flabelliforme Fernald
             Lycopodium digitatum Dill. ex A.Braun
             Lycopodium flabelliforme (Fernald) Blanch.
             Lycopodium flabelliforme (Fernald) Blanch. var. ambiguum Vict.
  Genus: Huperzia
    Huperzia lucidula (Michx.) Trevis.*+
        shining club-moss, shining fir-moss
             Lycopodium lucidulum Michx.
             Lycopodium reflexum Sw., non Lam.
             Urostachys lucidulus (Michx.) Herter ex Nessel
  Genus: Lycopodium
    Lycopodium clavatum L.*+
        running club-moss, running ground-pine, running-pine, staghorn club-moss
             Lycopodium clavatum L. var. clavatum
             Lycopodium clavatum L. var. laurentianum Vict.
             Lycopodium clavatum L. var. subremotum Vict.
             Lycopodium clavatum L. var. tristachyum Hook.
Family: Lythraceae
  Genus: Rotala
    Rotala ramosior (L.) Koehne*+
        lowland rotala, tooth-cup, wheel-wort tooth-cup
             Ammannia catholica Cham. & Schltdl.
             Ammannia dentifera A.Gray
             Ammannia ramosior L.
             Rotala catholica (Cham. & Schltdl.) Leeuwen
             Rotala dentifera (A.Gray) Koehne
             Rotala ramosior (L.) Koehne var. interior Fernald & Griscom
             Rotala ramosior (L.) Koehne var. typica Fernald & Griscom
Family: Malvaceae
  Genus: Abutilon
    Abutilon theophrasti Medik.*+
        piemarker, velvet-leaf
             Abutilon abutilon (L.) Rusby
             Abutilon avicennae Gaertn.
  Genus: Malva
    Malva neglecta Wallr.*+
        cheeses, common mallow
             Malva rotundifolia auct. non L.
Family: Menispermaceae
  Genus: Menispermum
    Menispermum canadense L.*+
        Canadian moonseed, common moonseed
Family: Molluginaceae
  Genus: Mollugo
    Mollugo verticillata L.*+
        carpetweed, green carpetweed, Indian chickweed
             Mollugo berteriana Ser.
Family: Monotropaceae
  Genus: Monotropa
    Monotropa uniflora L.*+
        Indian-pipe
             Monotropa brittonii Small
Family: Myricaceae
  Genus: Comptonia
    Comptonia peregrina (L.) J.M.Coult.*+
        sweet-fern
             Comptonia ceterach Mirb.
             Comptonia peregrina (L.) J.M.Coult. var. asplenifolia (L.) Fernald
             Comptonia peregrina (L.) J.M.Coult. var. tomentosa A.Chev.
             Liquidambar peregrina L.
             Myrica asplenifolia L.
             Myrica asplenifolia L. var. tomentosa (A.Chev.) Gleason
             Myrica comptonia C.DC.
             Myrica peregrina (L.) Kuntze
Family: Nyctaginaceae
  Genus: Mirabilis
    Mirabilis albida (Walter) Heimerl*+
        pale umbrella-wort, white four-o'clock
             Allionia albida Walter
             Allionia coahuilensis Standl.
             Allionia comata Small
             Allionia divaricata Rydb.
             Allionia hirsuta Pursh
             Allionia oblongifolia (A.Gray) Small
             Allionia pauciflora (Buckley) Standl.
             Allionia pratensis Standl.
             Allionia pseudaggregata (Heimerl) Standl.
             Allionia pumila Standl.
             Mirabilis ciliata (Standl.) Standl.
             Mirabilis coahuilensis (Standl.) Standl.
             Mirabilis comata (Small) Standl.
             Mirabilis eutricha Shinners
             Mirabilis grayana (Standl.) Standl.
             Mirabilis hirsuta (Pursh) MacMill.
             Mirabilis lanceolata (Rydb.) Standl.
             Mirabilis oblongifolia (A.Gray) Heimerl
             Mirabilis pauciflora (Buckley) Standl.
             Mirabilis pseudaggregata Heimerl
             Mirabilis pumila (Standl.) Standl.
             Oxybaphus albidus (Walter) Sweet
             Oxybaphus coahuilensis (Standl.) Weath.
             Oxybaphus comatus (Small) Weath.
             Oxybaphus hirsutus (Pursh) Sweet
             Oxybaphus lanceolatus (Rydb.) Standl.
             Oxybaphus pauciflorus Buckley
             Oxybaphus pseudaggregatus (Heimerl) Weath.
             Oxybaphus pumilus (Standl.) Standl.
    Mirabilis nyctaginea (Michx.) MacMill.*+
        heart-leaved umbrella-wort, wild four-o'clock
             Allionia nyctaginea Michx.
             Oxybaphus nyctagineus (Michx.) Sweet
Family: Nymphaeaceae
  Genus: Nuphar
    Nuphar variegata Durand*+
        bull-head pond-lily
             Nuphar advena (Aiton) W.T.Aiton var. fraterna (G.S.Mill. & Standl.) Standl.
             Nuphar fraterna (G.S.Mill. & Standl.) Standl.
             Nuphar lutea (L.) Sm. subsp. variegata
             Nymphaea americana G.S.Mill. & Standl.
             Nymphaea fraterna G.S.Mill. & Standl.
Family: Oleaceae
  Genus: Fraxinus
    Fraxinus nigra Marshall*+
        black ash
Family: Onagraceae
  Genus: Circaea
    Circaea alpina L. subsp. alpina*+
        alpine enchanter's-nightshade, northern enchanter's-nightshade, small enchanter's-nightshade
             Circaea alpina L. var. alpina
    Circaea lutetiana L. subsp. canadensis*+
        broad-leaf enchanter's-nightshade
             Circaea canadensis (L.) Hill
             Circaea canadensis (L.) Hill var. virginiana Fernald
             Circaea latifolia Hill
             Circaea lutetiana L. var. canadensis L.
             Circaea quadrisulcata (Maxim.) Franch. & Sav. subsp. canadensis
             Circaea quadrisulcata (Maxim.) Franch. & Sav. var. canadensis (L.) Hara
  Genus: Epilobium
    Epilobium angustifolium L. subsp. circumvagum*+
        fireweed, great willow-herb
             Epilobium angustifolium L. f. albiflorum (Dumort.) Hausskn.
             Epilobium angustifolium L. var. canescens A.W.Wood
    Epilobium coloratum Biehler*+
        cinnamon willow-herb, eastern willow-herb
    Epilobium X wisconsinense Ugent X +
        Wisconsin willow-herb
  Genus: Ludwigia
    Ludwigia palustris (L.) Elliott*+
        marsh purslane, marsh seed-box, water-purslane
             Isnardia palustris L., non Jussiaea palustris G.F.W.Mey.
             Isnardia palustris L. var. americana DC.
             Ludwigia palustris (L.) Elliott var. americana (DC.) Fernald & Griscom
             Ludwigia palustris (L.) Elliott f. elongata Fassett var. americana (DC.) Fernald & Griscom
             Ludwigia palustris (L.) Elliott var. nana Fernald & Griscom
             Ludwigia palustris (L.) Elliott var. pacifica Fernald & Griscom
    Ludwigia polycarpa Short & R.Peter*+
        false-loosestrife, top-pod water-primrose
  Genus: Oenothera
    Oenothera biennis L.*+
        bastard evening-primrose, common evening-primrose
             Oenothera biennis L. subsp. caeciarum
             Oenothera biennis L. subsp. centralis
             Oenothera biennis L. var. biennis
             Oenothera biennis L. var. pycnocarpa (G.F.Atk. & Bartlett) Wiegand
             Oenothera muricata L.
             Oenothera pycnocarpa G.F.Atk. & Bartlett
    Oenothera oakesiana (A.Gray) J.W.Robbins ex S.Watson & Coult.+
        Oakes' evening-primrose
             Oenothera angustissima R.R.Gates
             Oenothera biennis L. var. oakesiana A.Gray
             Oenothera cruciata Nutt. ex G.Don var. stenopetala (E.P.Bicknell) Fernald
             Oenothera parviflora L. subsp. angustissima
             Oenothera parviflora L. var. angustissima (R.R.Gates) Wiegand
             Oenothera parviflora L. var. oakesiana (A.Gray) Fernald
             Oenothera stenopetala E.P.Bicknell
    Oenothera parviflora L.*+
        northern evening-primrose, small-flowered evening-primrose
             Oenothera cruciata Nutt. ex G.Don var. sabulonensis Fernald
             Oenothera cymatilis Bartlett
             Oenothera rubricapitata R.R.Gates
    Oenothera perennis L.*+
        small evening-primrose, small sundrops
             Kneiffia perennis (L.) Pennell
             Kneiffia pumila (L.) Spach
             Oenothera perennis L. var. rectipilis (S.F.Blake) S.F.Blake
             Oenothera perennis L. var. typica Munz
             Oenothera pumila L.
             Oenothera pumila L. var. rectipilis S.F.Blake
    Oenothera villosa Thunb. subsp. villosa+
        hairy evening-primrose
             Oenothera albinervis R.R.Gates
             Oenothera biennis L. var. canescens Torr. & A.Gray
             Oenothera canovirens Steele
             Oenothera depressa Greene
             Oenothera strigosa (Rydb.) Mack. & Bush subsp. canovirens
             Oenothera villosa Thunb. subsp. canovirens
Family: Ophioglossaceae
  Genus: Botrychium
    Botrychium virginianum (L.) Sw.*+
        rattlesnake fern
             Botrychium virginianum (L.) Sw. subsp. europaeum
             Botrychium virginianum (L.) Sw. var. europaeum Ångstr.
             Osmunda virginiana L.
Family: Orchidaceae
  Genus: Aplectrum
    Aplectrum hyemale (Muhl. ex Willd.) Torr.*+
        Adam-and-Eve, putty-root
             Aplectrum spicatum Britton, Sterns & Poggenb.
             Cymbidium hyemale Muhl. ex Willd.
  Genus: Coeloglossum
    Coeloglossum viride (L.) Hartm. var. virescens (Muhl.) Luer*+
        long-bracted green orchid, frog orchid
             Coeloglossum bracteatum (Muhl.) Parl.
             Coeloglossum viride (L.) Hartm. subsp. bracteatum
             Habenaria bracteata (Muhl.) R.Br.
             Habenaria viridis (L.) R.Br. var. bracteata (Muhl.) A.Gray
             Orchis bracteata Muhl.
             Orchis virescens Muhl.
  Genus: Corallorhiza
    Corallorhiza maculata (Raf.) Raf.*+
        spotted coralroot, summer coralroot
  Genus: Cypripedium
    Cypripedium parviflorum Salisb. var. pubescens (Willd.) O.W.Knight*+
        large yellow lady's-slipper
             Cypripedium calceolus L. var. planipetalum (Fernald) Vict. & J.Rousseau
             Cypripedium calceolus L. var. pubescens (Willd.) Correll
             Cypripedium flavescens DC.
             Cypripedium parviflorum Salisb. var. planipetalum Fernald
             Cypripedium planipetalum (Fernald) F.Morris & E.A.Eames
             Cypripedium pubescens Willd.
             Cypripedium veganum Cockerell, P.Barker & M.Barker
    Cypripedium reginae Walter*+
        queen lady's-slipper, showy lady's-slipper
             Cypripedium hirsutum Mill.
             Cypripedium reginae Walter f. albolabium Fernald & B.G.Schub.
             Cypripedium reginae Walter f. reginae
             Cypripedium spectabile Salisb.
  Genus: Galearis
    Galearis spectabilis (L.) Raf.*+
        showy orchis
             Galeorchis spectabilis (L.) Rydb.
             Orchis spectabilis L.
  Genus: Goodyera
    Goodyera pubescens (Willd.) R.Br.*+
        downy rattlesnake-plantain
             Epipactis pubescens (Willd.) A.A.Eaton
             Neottia pubescens Willd.
             Peramium pubescens (Willd.) MacMill.
  Genus: Platanthera
    Platanthera lacera (Michx.) G.Don*+
        green fringed orchid, ragged fringed orchid
             Blephariglottis lacera (Michx.) Farw.
             Habenaria lacera (Michx.) R.Br.
             Orchis lacera Michx.
             Platanthera lacera (Michx.) G.Don var. lacera
    Platanthera psycodes (L.) Lindl.*+
        lesser purple fringed orchid
             Blephariglottis psycodes (L.) Rydb.
             Habenaria psycodes (L.) Spreng.
             Habenaria psycodes (L.) Spreng. var. psycodes
             Orchis psycodes L.
Family: Orobanchaceae
  Genus: Conopholis
    Conopholis americana (L.) Wallr.*+
        American squawroot
             Orobanche americana L.
Family: Osmundaceae
  Genus: Osmunda
    Osmunda claytoniana L.*+
        interrupted fern
Family: Oxalidaceae
  Genus: Oxalis
    Oxalis stricta L.*+
        common yellow oxalis, tall wood-sorrel
             Ceratoxalis coloradensis (Rydb.) Lunell
             Ceratoxalis cymosa (Small) Lunell
             Oxalis bushii Small
             Oxalis coloradensis Rydb.
             Oxalis europaea Jord.
             Oxalis europaea Jord. f. cymosa (Small) Wiegand
             Oxalis europaea Jord. f. pilosella Wiegand
             Oxalis europaea Jord. f. subglabrata Wiegand
             Oxalis europaea Jord. f. villicaulis Wiegand
             Oxalis europaea Jord. var. bushii (Small) Wiegand
             Oxalis europaea Jord. f. vestita Wiegand var. bushii (Small) Wiegand
             Oxalis europaea Jord. var. rufa (Small) Young
             Oxalis fontana Bunge
             Oxalis fontana Bunge var. bushii (Small) Hara
             Oxalis interior (Small) Fedde
             Oxalis rufa Small
             Oxalis stricta L. var. decumbens Bitter
             Oxalis stricta L. var. piletocarpa Wiegand
             Oxalis stricta L. var. rufa (Small) Farw.
             Oxalis stricta L. var. villicaulis (Wiegand) Farw.
             Oxalis cymosa Small
             Xanthoxalis bushii (Small) Small
             Xanthoxalis coloradensis (Rydb.) Rydb.
             Xanthoxalis cymosa (Small) Small
             Xanthoxalis dillenii (Jacq.) Holub var. piletocarpa (Wiegand) Holub
             Xanthoxalis interior Small
             Xanthoxalis rufa (Small) Small
             Xanthoxalis stricta (L.) Small
             Xanthoxalis stricta (L.) Small var. piletocarpa (Wiegand) Moldenke
    Oxalis violacea L.*+
        violet wood-sorrel
             Ionoxalis violacea (L.) Small
             Oxalis violacea L. f. albida Fassett
             Oxalis violacea L. var. trichophora Fassett
Family: Papaveraceae
  Genus: Sanguinaria
    Sanguinaria canadensis L.*+
        bloodroot
             Sanguinaria australis Greene
             Sanguinaria canadensis L. var. rotundifolia (Greene) Fedde
             Sanguinaria dilleniana Greene
             Sanguinaria rotundifolia Greene
Family: Pinaceae
  Genus: Abies
    Abies balsamea (L.) Mill.*+
        balsam fir, Canada balsam
             Pinus balsamea L.
  Genus: Larix
    Larix laricina (Du Roi) K.Koch*+
        larch, tamarack
             Larix alaskensis W.Wight
             Larix laricina (Du Roi) K.Koch var. alaskensis (W.Wight) Raup
             Pinus laricina Du Roi
  Genus: Picea
    Picea abies (L.) H.Karst.*+
        Norway spruce
             Picea excelsa (Lamb.) Link
             Pinus abies L.
  Genus: Pinus
    Pinus banksiana Lamb.*+
        jack pine
             Pinus divaricata (Aiton) Sudw.
    Pinus resinosa Aiton*+
        Canadian pine, Norway pine, red pine
    Pinus strobus L.*+
        eastern white pine
             Strobus strobus (L.) Small
Family: Plantaginaceae
  Genus: Plantago
    Plantago aristata Michx.+
        bracted plantain, buck-horn, large-bracted plantain
             Plantago aristata Michx. var. nuttallii (Rapin) E.Morris
             Plantago filiformis Decne.
             Plantago frankii Steud.
             Plantago nuttallii Rapin
             Plantago patagonica Jacq. var. aristata (Michx.) A.Gray
             Plantago purshii Roem. & Schult. var. aristata (Michx.) M.E.Jones
             Plantago squarrosa Nutt.
             Plantago squamosa Nutt. ex Decne.
    Plantago patagonica Jacq.*+
        woolly plantain
             Plantago gnaphalioides Nutt.
             Plantago oblonga E.Morris
             Plantago patagonica Jacq. var. breviscapa (Shinners) Shinners
             Plantago patagonica Jacq. var. gnaphalioides (Nutt.) A.Gray
             Plantago patagonica Jacq. var. oblonga (E.Morris) Shinners
             Plantago patagonica Jacq. var. spinulosa (Decne.) A.Gray
             Plantago picta E.Morris
             Plantago purshii Roem. & Schult.
             Plantago purshii Roem. & Schult. var. breviscapa Shinners
             Plantago purshii Roem. & Schult. var. oblonga (E.Morris) Shinners
             Plantago purshii Roem. & Schult. var. picta (E.Morris) Pilg.
             Plantago purshii Roem. & Schult. var. spinulosa (Decne.) Shinners
             Plantago spinulosa Decne.
             Plantago wyomingensis Gand.
    Plantago rugelii Decne.*+
        American plantain, black-seeded plantain, red-stalked plantain, Rugel's plantain
             Plantago rugelii Decne. var. alterniflora Farw.
             Plantago rugelii Decne. var. aspera Farw.
Family: Poaceae
  Genus: Agrostis
    Agrostis gigantea Roth*+
        redtop
             Agrostis alba auct. non L.
             Agrostis gigantea Roth var. dispar (Michx.) Philipson
             Agrostis gigantea Roth var. ramosa (S.F.Gray) Philipson
             Agrostis nigra With.
             Agrostis stolonifera L. subsp. gigantea
             Agrostis stolonifera L. var. major (Gaudin) Farw.
    Agrostis perennans (Walter) Tuck. var. perennans *+
        autumn bent grass, thin grass, upland bent grass
             Agrostis oreophila Trin.
             Agrostis perennans (Walter) Tuck. var. aestivalis Vasey
             Agrostis schweinitzii Trin.
             Cornucopiae perennans Walter
  Genus: Aristida
    Aristida basiramea Engelm. ex Vasey*+
        fork-tip three-awn grass
             Aristida basiramea Engelm. ex Vasey var. basiramea
    Aristida tuberculosa Nutt.*+
        beach three-awn, dune three-awn grass, seaside three-awn
  Genus: Bouteloua
    Bouteloua hirsuta Lag. subsp. hirsuta*+
        hairy grama, hairy grama grass
             Bouteloua hirsuta Lag. var. hirsuta
             Bouteloua hirsuta Lag. var. palmeri Vasey ex Beal
             Chondrosum hirsutum (Lag.) Kunth
  Genus: Brachyelytrum
    Brachyelytrum erectum (Schreb. ex Spreng.) P.Beauv.*+
        bearded shorthusk, long-awned wood grass
             Brachyelytrum erectum (Schreb. ex Spreng.) P.Beauv. var. erectum
  Genus: Bromus
    Bromus altissimus Pursh*+
        ear-leaved brome
             Bromus ciliatus sensu Baum, non L.
             Bromus latiglumis (Shear) Hitchc.
             Bromus latiglumis (Shear) Hitchc. f. incanus (Shear) Fernald
             Bromus purgans sensu Wagnon, non L.
    Bromus ciliatus L.*+
        fringed brome
             Bromopsis ciliata (L.) Holub
             Bromus ciliatus L. f. ciliatus
             Bromus ciliatus L. f. denudatus Wiegand
             Bromus ciliatus L. var. ciliatus
             Bromus ciliatus L. var. denudatus (Wiegand) Fernald
             Bromus ciliatus L. var. genuinus Fernald
             Bromus ciliatus L. var. intonsus Fernald
             Bromus dudleyi Fernald
    Bromus inermis Leyss.*+
        Hungarian brome, smooth brome
             Bromus inermis Leyss. f. aristatus (Schur) Fernald
             Bromus inermis Leyss. f. inermis
             Bromus inermis Leyss. f. villosus (Mert. & W.D.J.Koch) Fernald
             Bromus inopinatus Brues
  Genus: Calamagrostis
    Calamagrostis canadensis (Michx.) P.Beauv.*+
        blue-joint grass
    Calamagrostis canadensis (Michx.) P.Beauv. var. canadensis +
        big reed grass, blue-joint grass
             Calamagrostis anomala Suksd.
             Calamagrostis atropurpurea Nash
             Calamagrostis canadensis (Michx.) P.Beauv. var. acuminata Vasey ex Shear & Rydb.
             Calamagrostis canadensis (Michx.) P.Beauv. var. pallida (Vasey & Scribn.) Stebbins
             Calamagrostis canadensis (Michx.) P.Beauv. var. robusta Vasey
             Calamagrostis canadensis (Michx.) P.Beauv. var. typica Stebbins
             Calamagrostis expansa Rickett & Gilly var. robusta (Vasey) Stebbins
             Calamagrostis inexpansa A.Gray var. cuprea Kearney
             Calamagrostis inexpansa A.Gray var. robusta (Vasey) Stebbins
  Genus: Cenchrus
    Cenchrus longispinus (Hack.) Fernald*+
        field sandbur, innocent-weed, mat sandbur, sandbur
  Genus: Cinna
    Cinna arundinacea L.*+
        common wood-reed, sweet wood-reed, stout wood-reed
             Cinna arundinacea L. var. arundinacea
             Cinna arundinacea L. var. inexpansa Fernald & Griscom
    Cinna latifolia (Trevir. ex Göpp.) Griseb.*+
        drooping wood-reed
  Genus: Danthonia
    Danthonia spicata (L.) P.Beauv. ex Roem. & Schult.*+
        poverty danthonia, poverty grass, poverty oat grass
             Danthonia spicata (L.) P.Beauv. ex Roem. & Schult. var. longipila Scribn. & Merr.
             Danthonia spicata (L.) P.Beauv. ex Roem. & Schult. var. pinetorum Piper
             Danthonia thermalis Scribn.
  Genus: Dichanthelium
    Dichanthelium acuminatum (Sw.) Gould & C.A.Clark subsp. fasciculatum+
        western panic grass
             Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. fasciculatum (Torr.) Freckmann
             Dichanthelium lanuginosum (Elliott) Gould var. fasciculatum (Torr.) Spellenb.
             Panicum acuminatum Sw. var. fasciculatum (Torr.) Lelong
             Panicum brodiei H.St.John
             Panicum glutinoscabrum Fernald
             Panicum huachucae Ashe
             Panicum huachucae Ashe var. fasciculatum (Torr.) F.T.Hubb.
             Panicum languidum Hitchc.
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. fasciculatum (Torr.) Fernald
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. huachucae (Ashe) Hitchc.
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. septentrionale (Fernald) Fernald
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. tennesseense (Ashe) Gleason
             Panicum lassenianum Schmoll
             Panicum lindheimeri Nash var. fasciculatum (Torr.) Fernald
             Panicum occidentale Scribn.
             Panicum pacificum Hitchc. & Chase
             Panicum subvillosum Ashe
             Panicum tennesseense Ashe
    Dichanthelium latifolium (L.) Harvill*+
        broad-leaved panic grass
             Panicum latifolium L.
             Panicum macrocarpon Leconte ex Torr.
    Dichanthelium oligosanthes (Schult.) Gould subsp. scribnerianum*+
        few-flowered panic grass, Scribner's panic grass, Scribner's rosette grass
             Dichanthelium oligosanthes (Schult.) Gould var. helleri (Nash) Mohlenbr.
             Dichanthelium oligosanthes (Schult.) Gould var. scribnerianum (Nash) Gould
             Panicum helleri Nash
             Panicum oligosanthes Schult. var. helleri (Nash) Fernald
             Panicum oligosanthes Schult. var. scribnerianum (Nash) Fernald
             Panicum scoparium S.Watson ex Nash, non Lam.
             Panicum scribnerianum Nash
    Dichanthelium ovale (Elliott) Gould & C.A.Clark subsp. pseudopubescens*+
        stiff-leaved panic grass
             Dichanthelium commonsianum (Ashe) Freckmann
             Dichanthelium commonsianum (Ashe) Freckmann var. euchlamydeum (Shinners) Freckmann
             Dichanthelium ovale (Elliott) Gould & C.A.Clark var. addisonii (Nash) Gould & C.A.Clark
             Dichanthelium villosissimum (Nash) Freckmann var. pseudopubescens (Nash) Mohlenbr.
             Panicum addisonii Nash
             Panicum alabamense Ashe
             Panicum columbianum Scribn. var. commonsianum (Ashe) McNeill & Dore
             Panicum commonsianum Ashe
             Panicum commonsianum Ashe var. addisonii (Nash) R.W.Pohl
             Panicum commonsianum Ashe var. addisonii (Nash) Fernald
             Panicum commonsianum Ashe var. commonsianum
             Panicum commonsianum Ashe var. euchlamydeum (Shinners) R.W.Pohl
             Panicum euchlamydeum Shinners
             Panicum mundum Fernald
             Panicum ovale Elliott var. addisonii (Nash) C.F.Reed
             Panicum ovale Elliott var. pseudopubescens (Nash) Lelong
             Panicum owenae E.P.Bicknell
             Panicum pseudopubescens Nash
             Panicum villosissimum Nash var. pseudopubescens (Nash) Fernald
             Panicum wilmingtonense Ashe
  Genus: Echinochloa
    Echinochloa crus-galli (L.) P.Beauv.*+
        barnyard grass, large barnyard grass
             Echinochloa crus-galli (L.) P.Beauv. subsp. crus-galli
             Echinochloa crus-galli (L.) P.Beauv. var. crus-galli
             Echinochloa crus-galli (L.) P.Beauv. var. mitis (Pursh) Peterm.
             Echinochloa muricata (P.Beauv.) Fernald var. occidentalis Wiegand
             Echinochloa occidentalis (Wiegand) Rydb.
             Echinochloa pungens (Poir.) Rydb. var. coarctata Fernald & Griscom
             Panicum crus-galli L.
    Echinochloa muricata (P.Beauv.) Fernald var. microstachya Wiegand+
        rough barnyard grass
             Echinochloa microstachya (Wiegand) Rydb.
             Echinochloa muricata (P.Beauv.) Fernald var. wiegandii Fassett
             Echinochloa pungens (Poir.) Rydb. var. microstachya (Wiegand) Fernald & Griscom
             Echinochloa pungens (Poir.) Rydb. var. multiflora (Wiegand) Fernald & Griscom
             Echinochloa pungens (Poir.) Rydb. var. wiegandii Fassett
             Echinochloa wiegandii (Fassett) McNeill & Dore
  Genus: Elymus
    Elymus canadensis L.*+
        Canada wild-rye
             Elymus brachystachys Scribn. & Ball
             Elymus canadensis L. f. crescendus Ramaley
             Elymus canadensis L. f. glaucifolius (Muhl.) Fernald
             Elymus canadensis L. var. brachystachys (Scribn. & Ball) Farw.
             Elymus canadensis L. var. canadensis
             Elymus canadensis L. var. hirsutus (Farw.) Dorn
             Elymus canadensis L. var. robustus (Scribn. & J.G.Sm.) Mack. & Bush
             Elymus crescendus (Ramaley) L.C.Wheeler
             Elymus philadelphicus L.
             Elymus philadelphicus L. var. hirsutus Farw.
             Elymus robustus Scribn. & J.G.Sm.
    Elymus diversiglumis Scribn. & Ball+
        Minnesota wild-rye, unequal-glumed wild-rye
             Elymus canadensis L. var. interruptus (Buckley) Church
             Elymus interruptus of Amer. authors, not Buckley
    Elymus hystrix L. var. bigeloviana (Fernald) Bowden+
        Bigelow's bottlebrush grass, eastern bottlebrush grass
             Asperella hystrix (L.) Humb. var. bigeloviana Fernald
             Elymus hystrix L. f. bigelovianus (Fernald) Dore
             Hystrix patula Moench f. bigeloviana (Fernald) Gleason
             Hystrix patula Moench var. bigeloviana (Fernald) Deam
    Elymus trachycaulus (Link) Gould ex Shinners*+
        slender wheat grass
  Genus: Elytrigia
    Elytrigia repens (L.) Desv. ex B.D.Jacks.*+
        couchgrass, creeping quackgrass, quackgrass
             Agropyron acadiense F.T.Hubb.
             Agropyron repens (L.) P.Beauv.
             Agropyron repens (L.) P.Beauv. var. repens
             Agropyron repens (L.) P.Beauv. f. aristatum (Schumach.) Holmb. var. repens
             Agropyron repens (L.) P.Beauv. f. pilosum (Scribn.) Fernald var. repens
             Agropyron repens (L.) P.Beauv. f. trichorrhachis Rohlena var. repens
             Agropyron repens (L.) P.Beauv. var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. setiferum Fernald var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. heberhachis Fernald var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. subulatum var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. vaillantianum (Wulfen & Schreb.) Fernald var. subulatum (Schreb.) Roem. & Schult.
             Elymus repens (L.) Gould
             Elytrigia repens (L.) Desv. ex B.D.Jacks. var. repens
             Elytrigia repens (L.) Desv. ex B.D.Jacks. var. vaillantiana (Wulfen & Schreb.) Prokudin
             Triticum repens L.
  Genus: Eragrostis
    Eragrostis cilianensis (All.) Vignolo ex Janch.*+
        stink grass
             Eragrostis major Host
             Eragrostis megastachya (Koeler) Link
             Poa cilianensis All.
    Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb.*+
        creeping love grass, teal love grass
             Poa hypnoides Lam.
    Eragrostis pectinacea (Michx.) Nees var. pectinacea *+
        Carolina love grass, low love grass, small love grass, tufted love grass
             Eragrostis caroliniana (Biehler) Scribn.
             Eragrostis diffusa Buckley
             Eragrostis purshii hort. ex Schrad.
             Poa pectinacea Michx.
    Eragrostis spectabilis (Pursh) Steud.*+
        purple love grass, tumble grass
             Eragrostis spectabilis (Pursh) Steud. var. sparsihirsuta Farw.
             Poa spectabilis Pursh
  Genus: Eriochloa
    Eriochloa villosa (Thunb.) Kunth*+
        Chinese cup grass, hairy cup grass, woolly cup grass
             Paspalum villosum Thunb.
  Genus: Festuca
    Festuca saximontana Rydb. subsp. saximontana*+
        Rocky Mountain fescue
             Festuca brachyphylla Schult. ex Schult. & Schult.f. var. rydbergii (St.-Yves) Cronquist
             Festuca ovina L. var. rydbergii St.-Yves
             Festuca ovina L. var. saximontana (Rydb.) Gleason
             Festuca saximontana Rydb. var. saximontana
    Festuca subverticillata (Pers.) E.B.Alexeev*+
        nodding fescue
             Festuca obtusa Biehler
  Genus: Glyceria
    Glyceria borealis (Nash) Batch.*+
        northern manna grass
             Panicularia borealis Nash
    Glyceria canadensis (Michx.) Trin.*+
        rattlesnake grass, rattlesnake manna grass
             Panicularia canadensis (Michx.) Kuntze
    Glyceria grandis S.Watson*+
        American manna grass, reed manna grass
             Glyceria grandis S.Watson f. pallescens Fernald
             Glyceria grandis S.Watson var. grandis
             Glyceria maxima (Hartm.) Holmb. subsp. grandis
             Glyceria maxima (Hartm.) Holmb. var. americana (Torr.) B.Boivin
             Panicularia grandis (S.Watson) Nash
  Genus: Hierochloe
    Hierochloe hirta (Schrank) Borbás subsp. arctica*+
        northern sweet grass, vanilla grass
             Anthoxanthum hirtum (Schrank) Y.Schouten & Veldkamp subsp. arcticum
             Hierochloe arctica J.Presl
             Hierochloe odorata auct. non (L.) P.Beauv.
  Genus: Hordeum
    Hordeum jubatum L.*+
        foxtail barley, squirrel-tail grass
             Critesion jubatum (L.) Nevski
             Hordeum caespitosum Scribn. ex Pammel
             Hordeum jubatum L. subsp. jubatum
             Hordeum jubatum L. var. caespitosum (Scribn. ex Pammel) Hitchc.
  Genus: Leersia
    Leersia oryzoides (L.) Sw.*+
        rice cut grass
             Homalocenchrus oryzoides (L.) Pollich
             Leersia oryzoides (L.) Sw. f. glabra A.A.Eaton
             Leersia oryzoides (L.) Sw. f. inclusa (Wiesb.) Dörfl.
             Phalaris oryzoides L.
    Leersia virginica Willd.*+
        white grass
             Homalocenchrus virginicus (Willd.) Britton
             Leersia virginica Willd. var. ovata (Poir.) Fernald
  Genus: Muhlenbergia
    Muhlenbergia frondosa (Poir.) Fernald*+
        common satin grass, wire-stem muhly
             Agrostis frondosa Poir.
             Muhlenbergia commutata (Scribn.) Bush
             Muhlenbergia frondosa (Poir.) Fernald f. commutata (Scribn.) Fernald
             Muhlenbergia frondosa (Poir.) Fernald f. frondosa
             Muhlenbergia mexicana (L.) Trin. f. commutata (Scribn.) Wiegand
    Muhlenbergia glomerata (Willd.) Trin.*+
        marsh muhly, marsh wild-Timothy, spiked muhly
             Muhlenbergia glomerata (Willd.) Trin. var. cinnoides (Link) F.J.Herm.
             Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb. var. cinnoides (Link) B.Boivin
    Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb.*+
        marsh muhly, upland wild-Timothy
             Agrostis racemosa Michx.
  Genus: Oryzopsis
    Oryzopsis asperifolia Michx.*+
        rough-leaved rice grass
    Oryzopsis pungens (Torr. ex Spreng.) Hitchc.*+
        mountain rice grass, short-horned rice grass
             Milium pungens Torr. ex Spreng.
    Oryzopsis racemosa (Sm.) Ricker ex Hitchc.*+
        black-seeded rice grass
             Milium racemosum Sm.
             Piptatherum racemosum Ricker ex Hitchc.
  Genus: Panicum
    Panicum miliaceum L.*+
        broom-corn millet, hog millet, panic millet, proso millet, wild proso millet
    Panicum virgatum L.*+
        switch grass
             Panicum virgatum L. var. cubense Griseb.
             Panicum virgatum L. var. obtusum A.W.Wood
             Panicum virgatum L. var. virgatum
  Genus: Phalaris
    Phalaris arundinacea L.*+
        reed canary grass
             Phalaroides arundinacea (L.) Raeusch.
             Phalaris arundinacea L. f. variegata (Parn.) Druce
             Phalaris arundinacea L. var. picta L.
             Phalaroides arundinacea (L.) Raeusch. var. picta (L.) Tzvelev
  Genus: Phleum
    Phleum pratense L. subsp. pratense*+
        common timothy, timothy
  Genus: Poa
    Poa alsodes A.Gray*
        grove bluegrass, woodland bluegrass
    Poa compressa L.*
        Canada bluegrass, wiregrass
    Poa palustris L.*
        fowl meadow grass, marsh bluegrass
             Poa crocata Michx.
             Poa triflora Gilib.
    Poa pratensis L.*
        Kentucky bluegrass
             Poa agassizensis B.Boivin & D.Löve
             Poa alpigena (Fr. ex Blytt) Lindm.
             Poa alpigena (Fr. ex Blytt) Lindm. subsp. colpodea
             Poa alpigena (Fr. ex Blytt) Lindm. var. colpodea (Fr. ex Blytt) Schol.
             Poa angustifolia L.
             Poa pratensis L. subsp. agassizensis
             Poa pratensis L. subsp. alpigena
             Poa pratensis L. subsp. angustifolia
             Poa pratensis L. subsp. colpodea
             Poa pratensis L. var. angustifolia (L.) Gaudin
             Poa pratensis L. var. alpigena Fr. ex Blytt
             Poa pratensis L. var. colpodea (Fr. ex Blytt) Schol.
             Poa pratensis L. var. domestica Laest.
             Poa pratensis L. var. gelida (Roem. & Schult.) Böcher
             Poa pratensis L. var. iantha Wahlenb.
             Poa pratensis L. var. vivipara (Malmgren) B.Boivin
  Genus: Schizachne
    Schizachne purpurascens (Torr.) Swallen*+
        false melic grass
             Avena torreyi Nash
             Melica purpurascens (Torr.) Hitchc.
             Schizachne purpurascens (Torr.) Swallen var. pubescens Dore
             Schizachne purpurascens (Torr.) Swallen var. purpurascens
             Schizachne striata (Michx.) Hultén
             Trisetum purpurascens Torr.
  Genus: Schizachyrium
    Schizachyrium scoparium (Michx.) Nash var. scoparium
        broom beard grass, broom blue-stem, little blue-stem
             Andropogon neomexicanus Nash
             Andropogon praematurus Fernald
             Andropogon scoparius Michx.
             Andropogon scoparius Michx. var. frequens F.T.Hubb.
             Andropogon scoparius Michx. var. neomexicanus (Nash) Hitchc.
             Andropogon scoparius Michx. var. polycladus Scribn. & Ball
             Andropogon scoparius Michx. var. septentrionalis Fernald & Griscom
             Andropogon scoparius Michx. var. villosissimus Kearney
             Schizachyrium praematurum (Fernald) C.F.Reed
             Schizachyrium scoparium (Michx.) Nash subsp. scoparium
             Schizachyrium scoparium (Michx.) Nash var. frequens (F.T.Hubb.) Gould
             Schizachyrium scoparium (Michx.) Nash var. neomexicanum (Nash) Gould
             Schizachyrium scoparium (Michx.) Nash var. polycladum (Scribn. & Ball) C.F.Reed
  Genus: Setaria
    Setaria faberi R.A.W.Herrm.*+
        Chinese foxtail, giant foxtail, Japanese bristle grass, nodding foxtail
    Setaria pumila (Poir.) Roem. & Schult. subsp. pumila*+
        pigeon grass, yellow foxtail
             Panicum pumilum Poir.
             Setaria glauca of Amer. authors, not (L.) P.Beauv.
             Setaria glauca auct. non (L.) P.Beauv., sensu Vickery
             Setaria lutescens of Amer. authors, not (Weigel) F.T.Hubb.
    Setaria viridis (L.) P.Beauv. var. viridis +
        green bristle grass, green foxtail
             Chaetochloa viridis (L.) Scribn.
             Panicum viride L.
             Setaria viridis (L.) P.Beauv. var. breviseta (Döll) Hitchc.
             Setaria viridis (L.) P.Beauv. var. robustaalba Schreib.
             Setaria viridis (L.) P.Beauv. var. weinmannii (Roem. & Schult.) Borbás
  Genus: Sorghastrum
    Sorghastrum nutans (L.) Nash*+
        yellow Indian grass
             Andropogon nutans L.
             Sorghastrum avenaceum (Michx.) Nash
  Genus: Spartina
    Spartina pectinata Link*+
        prairie cord grass, slough grass
             Spartina michauxiana Hitchc.
             Spartina pectinata Link var. suttiei (Farw.) Fernald
  Genus: Sphenopholis
    Sphenopholis intermedia (Rydb.) Rydb.*+
        slender wedge grass
             Eatonia intermedia Rydb.
             Sphenopholis intermedia (Rydb.) Rydb. var. pilosa Dore
             Sphenopholis obtusata (Michx.) Scribn. var. major (Torr.) Erdman
    Sphenopholis obtusata (Michx.) Scribn.*+
        prairie wedge grass, prairie wedge scale
             Aira obtusata Michx.
             Sphenopholis obtusata (Michx.) Scribn. var. lobata (Trin.) Scribn.
             Sphenopholis obtusata (Michx.) Scribn. var. obtusata
             Sphenopholis obtusata (Michx.) Scribn. var. pubescens (Scribn. & Merr.) Scribn.
  Genus: Sporobolus
    Sporobolus cryptandrus (Torr.) A.Gray*+
        sand drop-seed
             Sporobolus cryptandrus (Torr.) A.Gray var. occidentalis E.K.Jones & Fassett
    Sporobolus cryptandrus (Torr.) A.Gray var. fuscicola (Hook.) Pohl+
        sand drop-seed
             Sporobolus cryptandrus (Torr.) A.Gray subsp. fuscicola
    Sporobolus vaginiflorus (Torr. ex A.Gray) A.W.Wood var. vaginiflorus *+
        poverty grass, poverty drop-seed, sheathed drop-seed
             Sporobolus vaginiflorus (Torr. ex A.Gray) A.W.Wood var. inaequalis Fernald
  Genus: Stipa
    Stipa spartea Trin.*+
        needle grass, porcupine grass
             Hesperostipa spartea (Trin.) Barkworth
Family: Polemoniaceae
  Genus: Phlox
    Phlox divaricata L. subsp. laphamii*+
        blue phlox, forest phlox, wild blue phlox, wild sweet-William, woodland phlox
             Phlox divaricata L. var. laphamii A.W.Wood
    Phlox pilosa L. subsp. fulgida+
        downy phlox, prairie phlox
             Phlox pilosa L. var. fulgida Wherry
  Genus: Polemonium
    Polemonium reptans L. var. reptans *+
        Greek-valerian, spreading Jacob's-ladder
Family: Polygalaceae
  Genus: Polygala
    Polygala polygama Walter var. obtusata Chodat*+
        bitter milkwort, purple milkwort, racemed milkwort
    Polygala sanguinea L.*+
        blood milkwort, field milkwort, purple milkwort
             Polygala sanguinea L. f. albiflora Millsp.
             Polygala sanguinea L. f. typica Farw.
             Polygala sanguinea L. f. viridescens (L.) Farw.
             Polygala viridescens L.
    Polygala verticillata L. var. isocycla Fernald*+
        short whorled milkwort
Family: Polygonaceae
  Genus: Fagopyrum
    Fagopyrum esculentum Moench*+
        buckwheat, fagopyrum
             Fagopyrum fagopyrum (L.) H.Karst.
             Fagopyrum sagittatum Gilib.
             Fagopyrum vulgare Hill
             Polygonum fagopyrum L.
  Genus: Polygonella
    Polygonella articulata (L.) Meisn.*+
        coastal joint-weed
             Delopyrum articulatum (L.) Small
             Polygonum articulatum L.
  Genus: Polygonum
    Polygonum arifolium L.*+
        halberd-leaved tear-thumb
             Polygonum arifolium L. var. lentiforme Fernald & Griscom
             Polygonum arifolium L. var. pubescens (R.Keller) Fernald
             Polygonum sagittatum L. var. pubescens Keller
             Tracaulon arifolium (L.) Raf.
    Polygonum convolvulus L.*+
        black-bindweed, false buckwheat
             Bilderdykia convolvulus (L.) Dumort.
             Fallopia convolvulus (L.) A.Löve
             Polygonum convolvulus L. var. convolvulus
             Reynoutria convolvulus (L.) Shinners
             Tiniaria convolvulus (L.) Webb. & Moq.
    Polygonum lapathifolium L.*+
        curly-top knotweed, dock-leaved smartweed, heart's-ease
             Persicaria incarnata (Elliott) Small
             Persicaria lapathifolia (L.) S.F.Gray
             Persicaria tomentosa (Schrank) E.P.Bicknell
             Polygonum incarnatum Elliott
             Polygonum incanum F.W.Schmidt
             Polygonum lapathifolium L. subsp. pallidum
             Polygonum lapathifolium L. var. incanum (F.W.Schmidt) W.D.J.Koch
             Polygonum lapathifolium L. var. lapathifolium
             Polygonum lapathifolium L. var. nodosum (Pers.) Small
             Polygonum lapathifolium L. var. ovatum A.Braun
             Polygonum lapathifolium L. var. prostratum Wimm.
             Polygonum lapathifolium L. var. salicifolium Sibth.
             Polygonum nodosum Pers.
             Polygonum oneillii Brenckle
             Polygonum pallidum With.
             Polygonum pensylvanicum L. subsp. oneillii
             Polygonum scabrum Moench
             Polygonum tomentosum Schrank
    Polygonum pensylvanicum L.*+
        Pennsylvania knotweed, Pennsylvania smartweed, pinkweed
             Persicaria bicornis (Raf.) Nieuwl.
             Persicaria longistyla (Small) Small
             Persicaria mississippiensis (Stanford) Small
             Persicaria pensylvanica (L.) M.Gómez
             Persicaria pensylvanica (L.) M.Gómez var. dura (Stanford) C.F.Reed
             Polygonum bicorne Raf.
             Polygonum longistylum Small
             Polygonum longistylum Small var. omissum (Greene) Stanford
             Polygonum mexicanum auct. non Small
             Polygonum mississippiense Stanford
             Polygonum mississippiense Stanford var. interius Stanford
             Polygonum omissum Greene
             Polygonum pensylvanicum L. var. durum Stanford
             Polygonum pensylvanicum L. var. eglandulosum J.C.Myers
             Polygonum pensylvanicum L. var. genuinum Fernald
             Polygonum pensylvanicum L. var. laevigatum Fernald
             Polygonum pensylvanicum L. f. albineum Farw. var. laevigatum Fernald
             Polygonum pensylvanicum L. f. pallescens Stanford var. laevigatum Fernald
             Polygonum pensylvanicum L. var. rosaeflorum Norton
    Polygonum persicaria L.*+
        heart's-ease, spotted lady's-thumb
             Persicaria maculata (Raf.) S.F.Gray
             Persicaria persicaria (L.) Small
             Persicaria ruderalis (Salisb.) C.F.Reed
             Persicaria ruderalis (Salisb.) C.F.Reed var. vulgaris (Webb & Moq.) C.F.Reed
             Persicaria vulgaris Webb & Moq.
             Polygonum dubium Stein
             Polygonum fusiforme Greene
             Polygonum minus auct. non Huds.
             Polygonum minus Huds. var. subcontinuum (Meisn.) Fernald
             Polygonum persicaria L. var. angustifolium Beckh.
             Polygonum persicaria L. var. ruderale (Salisb.) Meisn.
             Polygonum puritanorum Fernald
             Polygonum ruderale Salisb.
             Polygonum strictum Meisn. var. subcontinuum Meisn.
    Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett+
        dotted smartweed
             Persicaria punctata (Elliott) Small var. leptostachya (Meisn.) Small
             Polygonum acre Kunth var. confertiflorum Meisn.
             Polygonum acre Kunth var. leptostachyum Meisn.
             Polygonum antihaemorrhoidale Mart. f. aquatile Mart.
             Polygonum punctatum Elliott f. longicollum Fassett var. confertiflorum (Meisn.) Fassett
             Polygonum punctatum Elliott var. leptostachyum (Meisn.) Small
             Polygonum punctatum Elliott var. parvum Vict. & J.Rousseau
    Polygonum ramosissimum Michx.*+
        bushy knotweed
             Polygonum allocarpum S.F.Blake
             Polygonum atlanticum (B.L.Rob.) E.P.Bicknell
             Polygonum autumnale Brenckle
             Polygonum exsertum Small
             Polygonum interius Brenckle
             Polygonum ramosissimum Michx. f. atlanticum B.L.Rob.
             Polygonum ramosissimum Michx. var. ramosissimum
             Polygonum triangulum E.P.Bicknell
    Polygonum sagittatum L.*+
        arrow-leaved tear-thumb
             Polygonum sagittatum L. var. gracilentum Fernald
             Tracaulon sagittatum (L.) Small
             Tracaulon sagittatum (L.) Small var. gracilentum (Fernald) C.F.Reed
             Truellum sagittatum (L.) Soják
    Polygonum tenue Michx. var. tenue *+
        pleat-leaf knotweed, slender knotweed
    Polygonum virginianum L.*+
        jumpseed, woodland knotweed
             Antenoron virginianum (L.) Roberty & Vautier
             Persicaria virginiana (L.) Gaertn.
             Polygonum virginianum L. var. glaberrimum (Fernald) Steyerm.
             Tovara virginiana (L.) Raf.
             Tovara virginiana (L.) Raf. var. glaberrima Fernald
  Genus: Rumex
    Rumex acetosella L.*+
        common sheep sorrel, field sorrel, red sorrel, sheep sorrel
             Acetosella acetosella (L.) Small
             Acetosella tenuifolia (Wallr.) A.Löve
             Acetosella vulgaris (Koch) Fourr.
             Rumex acetosella L. subsp. angiocarpus
             Rumex acetosella L. var. pyrenaeus (Pourr.) Timb.-Lagr.
             Rumex acetosella L. var. tenuifolius Wallr.
             Rumex angiocarpus Murb.
             Rumex tenuifolius (Wallr.) A.Löve
    Rumex altissimus A.W.Wood+
        pale dock, smooth dock, water dock
             Rumex britannicus Meisn., non L.
             Rumex ellipticus Greene
    Rumex crispus L.*+
        curly dock, sour dock
             Rumex elongatus Guss.
    Rumex maritimus L. subsp. fueginus*+
        golden dock
             Rumex fueginus Phil.
             Rumex maritimus L. var. athrix H.St.John
             Rumex maritimus L. var. fueginus (Phil.) Dusén
Family: Polypodiaceae
  Genus: Polypodium
    Polypodium virginianum L.*+
        common polypody, rock-cap fern, rock polypody
             Polypodium vinlandicum A.Löve & D.Löve
             Polypodium vulgare auct. pro parte, non L.
             Polypodium vulgare L. var. americanum Hook.
             Polypodium vulgare L. var. virginianum (L.) D.C.Eaton
Family: Portulacaceae
  Genus: Claytonia
    Claytonia virginica L.*+
        spring-beauty, Virginia spring-beauty
             Claytonia virginica L. var. hammondiae (Kalmb.) J.J.Doyle, W.H.Lewis & D.B.Snyder
             Claytonia virginica L. var. virginica
  Genus: Phemeranthus
    Phemeranthus rugospermus (Holz.) Kiger*+
        prairie fame-flower, rough-seeded fame-flower, sand fame-flower
             Talinum rugospermum Holz.
Family: Potamogetonaceae
  Genus: Potamogeton
    Potamogeton pusillus L.+
        slender pondweed, small pondweed
             Potamogeton lateralis auct. pro parte, non Morong
    Potamogeton richardsonii (A.Benn.) Rydb.*+
        Richardson's pondweed
             Potamogeton perfoliatus L. subsp. richardsonii
             Potamogeton perfoliatus L. var. richardsonii A.Benn.
    Potamogeton zosteriformis Fernald*+
        flat-stem pondweed, flat-stemmed pondweed
             Potamogeton compressus auct. non L.
             Potamogeton zosterifolius auct. non Schumach.
             Potamogeton zosterifolius Schumach. subsp. zosteriformis
             Potamogeton zosterifolius Schumach. var. americanus A.Benn.
  Genus: Stuckenia
    Stuckenia pectinata (L.) Börner*+
        comb pondweed, sago pondweed
             Coleogeton pectinatus (L.) Les & R.R.Haynes
             Potamogeton pectinatus L.
Family: Primulaceae
  Genus: Lysimachia
    Lysimachia ciliata L.*+
        fringed loosestrife
             Steironema ciliatum (L.) Baudo
             Steironema pumilum Greene
    Lysimachia lanceolata Walter*+
        lance-leaved loosestrife
             Lysimachia angustifolia Lam.
             Lysimachia lanceolata Walter subsp. lanceolata
             Lysimachia lanceolata Walter var. angustifolia (Lam.) A.Gray
             Steironema heterophyllum (Michx.) Raf.
             Steironema lanceolatum (Walter) A.Gray
    Lysimachia quadrifolia L.*+
        whorled loosestrife, whorled yellow loosestrife
  Genus: Trientalis
    Trientalis borealis Raf. subsp. borealis*+
        American starflower
             Trientalis americana Pursh
Family: Pteridaceae
  Genus: Adiantum
    Adiantum pedatum L.*+
        maidenhair fern, northern maidenhair fern
Family: Pyrolaceae
  Genus: Chimaphila
    Chimaphila umbellata (L.) W.P.C.Barton subsp. cisatlantica*+
        pipsissewa, prince's-pine
             Chimaphila corymbosa Pursh
             Chimaphila umbellata (L.) W.P.C.Barton var. cisatlantica S.F.Blake
  Genus: Orthilia
    Orthilia secunda (L.) House*+
        one-sided shin-leaf, one-sided wintergreen
             Orthilia secunda (L.) House subsp. obtusata
             Orthilia secunda (L.) House var. obtusata (Turcz.) House
             Pyrola secunda L.
             Pyrola secunda L. subsp. obtusata
             Pyrola secunda L. var. obtusata Turcz.
             Pyrola secunda L. var. secunda
             Ramischia elatior Rydb.
             Ramischia secunda (L.) Garcke
  Genus: Pyrola
    Pyrola asarifolia Michx. subsp. asarifolia*+
        liver-leaf wintergreen, pink shin-leaf
             Pyrola asarifolia Michx. var. asarifolia
             Pyrola asarifolia Michx. var. incarnata (DC.) Fernald
             Pyrola asarifolia Michx. var. ovata Farw.
             Pyrola asarifolia Michx. var. purpurea (Bunge) Fernald
             Pyrola californica Krisa
             Pyrola elata Nutt.
             Pyrola rotundifolia L. subsp. asarifolia
             Pyrola rotundifolia L. var. incarnata DC.
             Pyrola rotundifolia L. var. purpurea Bunge
             Pyrola uliginosa Torr. & A.Gray ex Torr.
             Pyrola uliginosa Torr. & A.Gray ex Torr. var. gracilis Jenn.
    Pyrola elliptica Nutt.*+
        elliptic shin-leaf, large-leaved shin-leaf, wax-flower shin-leaf
             Pyrola compacta Jenn.
    Pyrola rotundifolia L. subsp. americana*+
        round-leaved shin-leaf
             Pyrola americana Sweet
             Pyrola asarifolia Michx. subsp. americana
             Pyrola obovata Bertol.
             Pyrola rotundifolia L. var. americana (Sweet) Fernald
Family: Ranunculaceae
  Genus: Actaea
    Actaea rubra (Aiton) Willd.*+
        red baneberry
             Actaea arguta Nutt.
             Actaea arguta Nutt. var. viridiflora (Greene) Tidestr.
             Actaea eburnea Rydb.
             Actaea neglecta Gillman
             Actaea rubra (Aiton) Willd. f. neglecta (Gillman) B.L.Rob.
             Actaea rubra (Aiton) Willd. subsp. arguta
             Actaea rubra (Aiton) Willd. subsp. rubra
             Actaea rubra (Aiton) Willd. var. arguta (Nutt.) Lawson
             Actaea rubra (Aiton) Willd. var. dissecta Britton
             Actaea rubra (Aiton) Willd. var. gigantea R.R.Gates
             Actaea spicata L. subsp. rubra
             Actaea spicata L. var. arguta (Nutt.) Torr.
             Actaea spicata L. var. rubra Aiton
             Actaea viridiflora Greene
  Genus: Anemone
    Anemone acutiloba (DC.) G.Lawson*+
        sharp-lobed hepatica
             Hepatica acutiloba DC.
             Hepatica acuta (Pursh) Britton
             Hepatica nobilis Schreb. var. acuta (Pursh) Steyerm.
             Hepatica triloba Chaix var. acuta Pursh
             Hepatica triloba Chaix var. acutiloba (DC.) R.Warner
    Anemone americana (DC.) H.Hara*+
        round-lobed hepatica
             Anemone hepatica L.
             Hepatica americana (DC.) Ker Gawl.
             Hepatica hepatica (L.) H.Karst.
             Hepatica nobilis Schreb. var. obtusa (Pursh) Steyerm.
             Hepatica triloba Chaix var. americana DC.
             Hepatica triloba Chaix var. obtusa Pursh
    Anemone canadensis L.*+
        Canada anemone, Canadian anemone, meadow anemone
             Anemone dichotoma L. var. canadensis (L.) MacMill.
    Anemone cylindrica A.Gray*+
        candle anemone, long-headed anemone, thimbleweed
    Anemone patens L. var. multifida Pritz.*+
        American pasqueflower, prairie-smoke
             Anemone ludoviciana Nutt.
             Anemone multifida (Pritz.) Zämelis, non Poir.
             Anemone nuttalliana DC.
             Anemone patens L. var. nuttalliana (DC.) A.Gray
             Anemone patens L. var. wolfgangiana (Besser) Koch
             Anemone wolfgangiana Besser ex Koch
             Pulsatilla hirsutissima (Pursh) Britton
             Pulsatilla ludoviciana (Nutt.) A.Heller
             Pulsatilla nuttalliana (DC.) Spreng.
             Pulsatilla patens (L.) Mill. subsp. asiatica
             Pulsatilla patens (L.) Mill. subsp. hirsutissima
             Pulsatilla patens (L.) Mill. subsp. multifida
    Anemone quinquefolia L. var. quinquefolia *+
        nightcaps, wood anemone
             Anemone nemorosa L. var. bifolia (Farw.) B.Boivin
             Anemone nemorosa L. var. quinquefolia (L.) Pursh
             Anemone quinquefolia L. var. bifolia Farw.
             Anemone quinquefolia L. var. interior Fernald
    Anemone virginiana L. var. alba (Oakes) A.W.Wood*+
        tall anemone, thimbleweed
             Anemone cylindrica A.Gray var. alba Oakes
             Anemone riparia Fernald
             Anemone riparia Fernald f. inconspicua Fernald
             Anemone virginiana L. var. riparia (Fernald) B.Boivin
    Anemone virginiana L. var. virginiana +
        tall anemone, tall thimbleweed
             Anemone virginiana L. f. leucosepala Fernald
  Genus: Aquilegia
    Aquilegia canadensis L.*+
        Canadian columbine, red columbine, wild columbine
             Aquilegia australis Small
             Aquilegia canadensis L. f. flaviflora (Tenney) Britton
             Aquilegia canadensis L. var. australis (Small) Munz
             Aquilegia canadensis L. var. coccinea (Small) Munz
             Aquilegia canadensis L. var. eminens (Greene) B.Boivin
             Aquilegia canadensis L. var. flaviflora (Tenney) Britton
             Aquilegia canadensis L. var. hybrida Hook.
             Aquilegia canadensis L. var. latiuscula (Greene) Munz
             Aquilegia coccinea Small
             Aquilegia eminens Greene
             Aquilegia flaviflora Tenney
             Aquilegia latiuscula Greene
             Aquilegia phoenicantha Cory
  Genus: Caltha
    Caltha palustris L.*+
        cowslip, marsh-marigold, yellow marsh-marigold
             Caltha arctica R.Br.
             Caltha asarifolia DC.
             Caltha flabellifolia Pursh
             Caltha minor Mill. subsp. arctica
             Caltha natans Pall. var. arctica (R.Br.) Hultén
             Caltha natans Pall. var. asarifolia (DC.) Huth
             Caltha palustris L. subsp. arctica
             Caltha palustris L. subsp. asarifolia
             Caltha palustris L. subsp. radicans
             Caltha palustris L. var. arctica (R.Br.) Huth
             Caltha palustris L. var. asarifolia (DC.) Rothr.
             Caltha palustris L. var. flabellifolia (Pursh) Torr. & A.Gray
             Caltha palustris L. var. palustris
             Caltha palustris L. var. radicans (J.R.Forst.) Huth
             Caltha radicans J.R.Forst.
  Genus: Clematis
    Clematis virginiana L.*+
        devil's-darning-needle, virgin's-bower
             Clematis canadensis Mill.
             Clematis holosericea Pursh
             Clematis missouriensis Rydb.
             Clematis virginiana L. f. missouriensis (Rydb.) Fernald
             Clematis virginiana L. var. missouriensis (Rydb.) E.J.Palmer & Steyerm.
  Genus: Delphinium
    Delphinium carolinianum Walter subsp. virescens*+
        Carolina larkspur, plains larkspur, prairie larkspur, white larkspur
             Delphinium albescens Rydb.
             Delphinium carolinianum Walter subsp. penardii
             Delphinium penardii Huth
             Delphinium virescens Nutt.
             Delphinium virescens Nutt. subsp. penardii
             Delphinium virescens Nutt. var. macroceratilis (Rydb.) Cory
             Delphinium virescens Nutt. var. penardii (Huth) L.M.Perry
  Genus: Enemion
    Enemion biternatum Raf.*+
        false rue anemone
             Isopyrum biternatum (Raf.) Torr. & A.Gray
             Isopyrum biternatum (Raf.) Torr. & A.Gray f. acutilobum Fernald
  Genus: Ranunculus
    Ranunculus abortivus L.*+
        little-leaf buttercup, small-flowered buttercup
             Ranunculus abortivus L. subsp. acrolasius
             Ranunculus abortivus L. var. abortivus
             Ranunculus abortivus L. var. acrolasius Fernald
             Ranunculus abortivus L. var. eucyclus Fernald
             Ranunculus abortivus L. var. indivisus Fernald
             Ranunculus abortivus L. var. typicus Fernald
    Ranunculus aquatilis L. var. diffusus With.*+
        white water crowfoot
             Batrachium circinatum (Sibth.) Rchb. subsp. subrigidum
             Batrachium flaccidum (Pers.) Rupr.
             Batrachium longirostre (Godr.) F.W.Schultz
             Batrachium porteri (Britton) Britton
             Batrachium trichophyllum (Chaix) F.W.Schultz
             Ranunculus amphibius James
             Ranunculus aquatilis L. var. calvescens (W.B.Drew) L.D.Benson
             Ranunculus aquatilis L. var. capillaceus (Thuill.) DC.
             Ranunculus aquatilis L. var. harrisii L.D.Benson
             Ranunculus aquatilis L. var. lalondei L.D.Benson
             Ranunculus aquatilis L. var. longirostris (Godr.) Lawson
             Ranunculus aquatilis L. var. porteri (Britton) L.D.Benson
             Ranunculus aquatilis L. var. subrigidus (W.B.Drew) Breitung
             Ranunculus aquatilis L. var. trichophyllus (Chaix) A.Gray
             Ranunculus circinatus auct. non Sibth.
             Ranunculus circinatus Sibth. var. subrigidus (W.B.Drew) L.D.Benson
             Ranunculus confervoides (Fr.) Fr.
             Ranunculus flaccidus Pers.
             Ranunculus longirostris Godr.
             Ranunculus subrigidus W.B.Drew
             Ranunculus trichophyllus Chaix
             Ranunculus trichophyllus Chaix var. calvescens W.B.Drew
             Ranunculus trichophyllus Chaix var. eradicatus (Laest.) W.B.Drew
             Ranunculus trichophyllus Chaix var. trichophyllus
             Ranunculus trichophyllus Chaix var. typicus W.B.Drew
             Ranunculus usneoides Greene
    Ranunculus hispidus Michx.*+
        bristly buttercup, hispid buttercup, rough buttercup
    Ranunculus hispidus Michx. var. nitidus (Chapm.) T.Duncan+
        bristly buttercup, hispid buttercup, rough buttercup
             Ranunculus carolinianus DC.
             Ranunculus carolinianus DC. var. villicaulis Shinners
             Ranunculus nitidus Muhl. ex Elliott, non Walter
             Ranunculus palmatus Elliott
             Ranunculus repens L. var. nitidus Chapm.
             Ranunculus septentrionalis Poir.
             Ranunculus septentrionalis Poir. var. nitidus Chapm.
             Ranunculus septentrionalis Poir. var. pterocarpus L.D.Benson
    Ranunculus pensylvanicus L.f.*+
        bristly buttercup, bristly crowfoot, Pennsylvania buttercup
    Ranunculus rhomboideus Goldie*+
        prairie buttercup, prairie crowfoot
             Ranunculus ovalis Raf.
  Genus: Thalictrum
    Thalictrum dasycarpum Fisch. & Avé-Lall.*+
        purple meadow-rue, tall meadow-rue
             Thalictrum dasycarpum Fisch. & Avé-Lall. var. dasycarpum
             Thalictrum dasycarpum Fisch. & Avé-Lall. var. hypoglaucum (Rydb.) B.Boivin
             Thalictrum hypoglaucum Rydb.
    Thalictrum dioicum L.*+
        early meadow-rue, quicksilver-weed
    Thalictrum thalictroides (L.) A.J.Eames & B.Boivin*+
        rue-anemone, wind-flower