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Wisflora - Vascular Plant Species

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WISFLORA: Vascular Plant Species

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County: Dodge

Family: Aceraceae
  Genus: Acer
    Acer negundo L.
        ash-leaved maple, box elder
    Acer negundo L. var. negundo +
        box elder
             Negundo aceroides (L.) Moench
             Negundo negundo (L.) Karst.
    Acer negundo L. var. violaceum (Kirchn.) H.Jaeger+
        box elder
             Negundo aceroides (L.) Moench subsp. violaceum
    Acer platanoides L.*+
        Norway maple
             Acer platanoides L. var. schwedleri Nichols.
    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 saccharum Marshall var. saccharum *+
        hard maple, sugar maple
             Acer nigrum F.Michx. var. glaucum (F.Schmidt) Fosberg
             Acer nigrum F.Michx. var. saccharophorum (K.Koch) R.T.Clausen
             Acer saccharinum Wangenh. var. glaucum F.Schmidt
             Acer saccharum Marshall f. glaucum (F.Schmidt) Pax
             Acer saccharum Marshall subsp. saccharum
             Acer saccharum Marshall var. glaucum (F.Schmidt) Sarg.
             Acer saccharophorum K.Koch
             Saccharodendron saccharum (Marshall) Moldenke
    Acer spicatum Lam.*+
        mountain maple
Family: Alismataceae
  Genus: Alisma
    Alisma subcordatum Raf.*+
        American water-plantain, common water-plantain, southern water-plantain
             Alisma parviflorum Pursh
             Alisma plantago-aquatica L. subsp. subcordatum
             Alisma plantago-aquatica L. var. parviflorum (Pursh) Torr.
    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
Family: Amaranthaceae
  Genus: Amaranthus
    Amaranthus powellii S.Watson*+
        green amaranth, Powell's amaranth, Powell's smooth amaranth, tall amaranth
             Amaranthus bouchonii Thell.
             Amaranthus bracteosus Uline & W.L.Bray
             Amaranthus retroflexus L. var. powellii (S.Watson) B.Boivin
    Amaranthus retroflexus L.*+
        common amaranth, pigweed, redroot, rough amaranth, rough pigweed, wild-beet amaranth
             Amaranthus retroflexus L. var. salicifolius I.M.Johnst.
    Amaranthus tuberculatus (Moq.) J.D.Sauer*+
        rough-fruited amaranth, rough-fruited water-hemp, tall water-hemp
             Acnida altissima Riddell ex Moq.
             Acnida altissima Riddell ex Moq. var. prostrata (Uline & W.L.Bray) Fernald
             Acnida altissima Riddell ex Moq. var. subnuda (S.Watson) Fernald
             Acnida concatenata (Moq.) Small
             Acnida subnuda (S.Watson) Standl.
             Acnida tamariscina (Nutt.) A.W.Wood
             Acnida tamariscina (Nutt.) A.W.Wood var. concatenata (Moq.) Uline & W.L.Bray
             Acnida tamariscina (Nutt.) A.W.Wood var. prostrata Uline & W.L.Bray
             Acnida tamariscina (Nutt.) A.W.Wood var. tuberculata (Moq.) Uline & W.L.Bray
             Acnida tuberculata Moq.
             Acnida tuberculata Moq. var. prostrata (Uline & W.L.Bray) B.L.Rob.
             Acnida tuberculata Moq. var. subnuda S.Watson
             Amaranthus altissimus Riddell
             Amaranthus ambigens Standl.
             Amaranthus cannabinus L. var. concatenata Moq.
             Amaranthus rudis J.D.Sauer
             Amaranthus tamariscinus Nutt.
             Amaranthus tuberculatus (Moq.) J.D.Sauer var. prostratus (Uline & W.L.Bray) B.L.Rob.
             Amaranthus tuberculatus (Moq.) J.D.Sauer var. subnudus S.Watson
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 X pulvinata Greene (pro sp.) X +
        hybrid sumac, northern sumac, pulvinate sumac
             Rhus glabra L. var. borealis Britton
             Rhus pulvinata Greene
             Rhus X borealis (Britton) Gleason (emended) X
  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
    Toxicodendron vernix (L.) Kuntze*+
        poison sumac, swamp sumac
             Rhus vernix L.
Family: Apiaceae
  Genus: Angelica
    Angelica atropurpurea L.*+
        common great angelica, great angelica, purple-stem angelica
  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: Daucus
    Daucus carota L.*+
        Queen Anne's-lace, wild carrot
             Daucus carota L. f. epurpuratus Farw.
  Genus: Osmorhiza
    Osmorhiza claytonii (Michx.) C.B.Clarke*+
        bland sweet cicely, Clayton's sweet-root, hairy sweet cicely
             Myrrhis claytonii Michx.
             Osmorhiza aristata (Thunb.) Makino var. brevistylis (DC.) B.Boivin
             Osmorhiza brevistylis DC.
             Washingtonia claytonii (Michx.) Britton
    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: Oxypolis
    Oxypolis rigidior (L.) Raf.*+
        common water-dropwort, stiff cowbane
             Oenanthe ambigua Nutt.
             Oxypolis longifolia (Pursh) Small
             Oxypolis rigidior (L.) Raf. var. ambigua (Nutt.) B.L.Rob.
             Oxypolis rigidior (L.) Raf. var. longifolia (Pursh) Britton
             Oxypolis turgida Small
  Genus: Pastinaca
    Pastinaca sativa L.*+
        wild parsnip
  Genus: Sanicula
    Sanicula gregaria E.P.Bicknell*+
        clustered black snakeroot
             Sanicula odorata (Raf.) K.M.Pryer & L.R.Phillippe
             Triclinium odoratum Raf.
  Genus: Sium
    Sium suave Walter*+
        hemlock water-parsnip, water-parsnip
             Sium cicutaefolium Schrank
             Sium floridanum Small
             Sium suave Walter var. floridanum (Small) C.F.Reed
  Genus: Taenidia
    Taenidia integerrima (L.) Drude*+
        yellow-pimpernel
             Smyrnium integerrimum L.
  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 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
  Genus: Symplocarpus
    Symplocarpus foetidus (L.) Salisb. ex W.P.C.Barton*+
        skunk-cabbage
             Dracontium foetidum L.
             Spathyema foetida (L.) Raf.
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 quinquefolius L.*+
        American ginseng, ginseng
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 syriaca L.*+
        common milkweed, silkweed
             Asclepias intermedia Vail
             Asclepias kansana Vail
             Asclepias syriaca L. var. kansana (Vail) E.J.Palmer & Steyerm.
    Asclepias verticillata L.*+
        whorled milkweed
    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
  Genus: Asplenium
    Asplenium rhizophyllum L.*+
        walking fern
             Camptosorus rhizophyllus (L.) Link
Family: Asteraceae
  Genus: Achillea
    Achillea millefolium L.*+
        common yarrow, milfoil
    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.
  Genus: Ambrosia
    Ambrosia artemisiifolia L.*+
        annual bur-sage, common ragweed, short ragweed
             Ambrosia artemisiifolia L. var. elatior (L.) Descourt.
             Ambrosia artemisiifolia L. f. villosa Fernald & Griscom var. elatior (L.) Descourt.
             Ambrosia elatior L.
             Ambrosia media Rydb.
    Ambrosia trifida L. var. trifida *+
        giant ragweed, great ragweed, horse-cane
             Ambrosia integrifolia Muhl. ex Willd.
             Ambrosia striata Rydb.
             Ambrosia trifida L. var. integrifolia (Muhl. ex Willd.) Torr. & A.Gray
             Ambrosia variabilis Rydb.
  Genus: Antennaria
    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
    Antennaria plantaginifolia (L.) Richardson*+
        plantain pussy-toes, plantain-leaved pussy-toes, woman's-tobacco
             Antennaria caroliniana Rydb.
             Antennaria decipiens Greene
             Antennaria denikeana B.Boivin
             Antennaria nemoralis Greene
             Antennaria petiolata Fernald
             Antennaria pinetorum Greene
             Antennaria plantaginifolia (L.) Richardson var. petiolata (Fernald) A.Heller
             Antennaria plantaginifolia (L.) Richardson var. plantaginifolia
             Gnaphalium plantaginifolium L.
  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
  Genus: Artemisia
    Artemisia biennis Willd.*+
        biennial sage-wort, biennial wormwood
    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 borealis (Torr. & A.Gray) Prov.*+
        northern bog aster, rush aster
             Aster franklinianus Rydb.
             Aster junceus auct. non Aiton
             Aster junciformis Rydb.
             Aster laxifolius Lindl. var. borealis Torr. & A.Gray
             Aster laxifolius Nees var. laetiflorus Torr. & A.Gray
             Symphyotrichum boreale (Torr. & A.Gray) A.Löve & D.Löve
    Aster drummondii Lindl.+
        Drummond's aster, hairy heart-leaved aster
             Aster drummondii Lindl. subsp. drummondii
             Aster drummondii Lindl. var. drummondii
             Aster drummondii Lindl. var. rhodactis Benke
             Aster sagittifolius Wedem. ex Willd. var. drummondii (Lindl.) Shinners
             Symphyotrichum drummondii (Lindl.) G.L.Nesom
             Symphyotrichum drummondii (Lindl.) G.L.Nesom var. drummondii
    Aster ericoides L.*+
        heath aster, squarrose white aster, white prairie aster
    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. var. laevis *+
        smooth aster, smooth blue aster
             Aster laevis L. f. amplifolius (Porter) Fernald
             Aster laevis L. f. latifolius (Porter) Shinners
             Aster laevis L. f. purpurascens (Farw.) Shinners
             Aster laevis L. var. amplifolius Porter
             Aster laevis L. var. falcatus Farw.
             Aster laevis L. f. purpurascens Farw. var. falcatus Farw.
             Aster laevis L. var. latifolius Porter
             Aster laevis L. var. thyrsoideus Farw.
             Symphyotrichum laeve (L.) A.Löve & D.Löve
             Symphyotrichum laeve (L.) A.Löve & D.Löve var. laeve
    Aster lanceolatus Willd. var. interior (Wiegand) A.G.Jones+
        inland panicled aster, panicled aster, white panicle aster
             Aster interior Wiegand
             Aster lanceolatus Willd. subsp. interior
             Aster lanceolatus Willd. var. interior (Wiegand) Semple & Chmiel. subsp. lanceolatus
             Aster simplex Willd. var. interior (Wiegand) Cronquist
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom var. interior (Wiegand) G.L.Nesom subsp. lanceolatum
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom var. interior (Wiegand) G.L.Nesom
    Aster lanceolatus Willd. var. interior (Wiegand) A.G.Jones X A. lanceolatus Willd. var. simplex (Willd.) A.G.Jones+
             Aster lanceolatus Willd. var. interior (Wiegand) Semple & Chmiel. X A. tradescantii L.
             Aster simplex Willd. X A. tradescantii L.
    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 lanceolatus Willd. var. simplex (Willd.) A.G.Jones+
        branched panicled aster, panicled aster, white panicle aster
             Aster lanceolatus Willd. subsp. simplex
             Aster paniculatus Lam. var. simplex (Willd.) E.S.Burgess
             Aster simplex Willd.
             Symphyotrichum simplex (Willd.) A.Löve & D.Löve
    Aster lateriflorus (L.) Britton*+
        calico aster, goblet aster, side-flowering aster
             Aster lateriflorus (L.) Britton var. glomerellus (Torr. & A.Gray) E.S.Burgess
             Aster miser L. var. glomerellus Torr. & A.Gray
    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 novae-angliae L.*+
        New England aster
             Aster novae-angliae L. f. geneseensis House
             Aster novae-angliae L. f. rosarius House
             Aster novae-angliae L. f. roseus (Desf.) Britton
             Aster novae-angliae L. var. monocephalus Farw.
             Aster roseus Desf.
             Lasallea novae-angliae (L.) Semple & Brouillet
             Symphyotrichum novae-angliae (L.) G.L.Nesom
             Virgulus novae-angliae (L.) Reveal & Keener
    Aster oolentangiensis Riddell*+
        azure aster, prairie heart-leaved aster, sky-blue aster
             Aster azureus Lindl.
             Aster azureus Lindl. f. incarnatus Farw.
             Aster oolentangiensis Riddell var. oolentangiensis
             Symphyotrichum oolentagiense (Riddell) G.L.Nesom
             Symphyotrichum oolentangiense (Riddell) G.L.Nesom var. oolentangiense
    Aster pilosus Willd. var. pilosus *+
        awl aster, frost aster, hairy aster, white old-field aster
             Aster ericoides L. var. platyphyllus Torr. & A.Gray
             Aster ericoides L. var. villosus (Michx.) Torr. & A.Gray
             Aster pilosus Willd. f. pulchellus Benke
             Aster pilosus Willd. var. platyphyllus (Torr. & A.Gray) S.F.Blake
             Aster villosus Michx.
             Symphyotrichum pilosum (Willd.) G.L.Nesom
             Symphyotrichum pilosum (Willd.) G.L.Nesom var. pilosum
    Aster pilosus Willd. var. pringlei (A.Gray) S.F.Blake*+
        awl aster, frost aster, hairy aster, Pringle's aster, white old-field aster
             Aster ericoides L. var. pringlei A.Gray
             Aster faxonii Porter
             Aster pilosus Willd. var. demotus S.F.Blake
             Aster polyphyllus Willd., non Moench
             Aster pringlei (A.Gray) Britton
             Symphyotrichum pilosum (Willd.) G.L.Nesom var. pringlei (A.Gray) G.L.Nesom
    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 shortii Lindl.*+
        Midwestern blue heart-leaved aster, Short's aster
             Aster camptosorus Small
             Aster shortii Lindl. f. asper Shinners
             Aster shortii Lindl. f. candidus Benke
             Aster shortii Lindl. f. gronemanni Benke
             Aster shortii Lindl. var. monroei Benke
             Symphyotrichum shortii (Lindl.) G.L.Nesom
    Aster X amethystinus Nutt. (pro sp.) X *+
        amethyst aster
             Aster amethystinus Nutt. f. leucerythros Bemis
             Aster amethystinus Nutt. f. leucos Bemis
             Lasallea X amethystina (Nutt.) Semple & Brouillet X
             Symphyotrichum X amethystinum (Nutt.) G.L.Nesom X
             Virgulus X amethystinus (Nutt.) Reveal & Keener X
  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
    Bidens frondosus L.*+
        common beggar-ticks, devil's beggar-ticks
             Bidens comosus (A.Gray) Wiegand X B. frondosus L.
             Bidens frondosus L. f. anomalus (Porter ex Fernald) Fernald
             Bidens frondosus L. var. anomalus Porter ex Fernald
             Bidens frondosus L. var. caudatus Sherff
             Bidens frondosus L. var. frondosus
             Bidens frondosus L. var. pallidus Wiegand
             Bidens frondosus L. var. puberulus Wiegand
             Bidens frondosus L. var. stenodontus Fernald & H.St.John
    Bidens vulgatus Greene*+
        big devil's beggar-ticks, tall beggar-ticks
             Bidens puberulus Wiegand
             Bidens vulgatus Greene f. puberulus (Wiegand) Fernald
             Bidens vulgatus Greene var. puberulus (Wiegand) Greene
             Bidens vulgatus Greene var. schizanthus Lunell
             Bidens vulgatus Greene var. vulgatus
  Genus: Centaurea
    Centaurea biebersteinii DC.*+
        spotted knapweed
             Acosta maculosa auct. non Holub
             Centaurea maculosa auct. non Lam.
  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 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 philadelphicus L.*+
        common fleabane, marsh fleabane, Philadelphia daisy
    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.*+
        spotted Joe-Pye-weed
    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 purpureum L.*+
        green-stemmed Joe-Pye-weed, purple Joe-Pye-weed
             Eupatorium falcatum Michx.
             Eupatorium holzingeri Rydb.
             Eupatoriadelphus purpureus (L.) R.M.King & H.Rob.
             Eupatorium purpureum L. var. holzingeri (Rydb.) E.Lamont
             Eupatorium purpureum L. var. purpureum
    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
  Genus: Gaillardia
    Gaillardia aristata Pursh*+
        common blanket-flower, common gaillardia
  Genus: Galinsoga
    Galinsoga quadriradiata Ruiz & Pav.*+
        common quick-weed, Peruvian-daisy, quick-weed, shaggy-soldier
             Ageratum perplexans M.F.Johnson
             Galinsoga aristulata E.P.Bicknell
             Galinsoga bicolorata H.St.John & D.White
             Galinsoga caracasana (DC.) Sch.Bip.
             Galinsoga ciliata (Raf.) S.F.Blake
             Galinsoga parviflora Cav. var. hispida DC.
  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 grosseserratus M.Martens*+
        saw-tooth sunflower
             Helianthus grosseserratus M.Martens f. plenifolius Wadmond
             Helianthus grosseserratus M.Martens subsp. maximus
             Helianthus grosseserratus M.Martens var. hypoleucus A.Gray
             Helianthus instabilis 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 strumosus L.*+
        pale-leaved woodland sunflower, rough-leaved sunflower
             Helianthus montanus E.Watson
             Helianthus saxicola Small
    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*+
        false sunflower, ox-eye, sunflower-everlasting
    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 caespitosum Dumort.+
        field hawkweed, meadow hawkweed, yellow king-devil
             Hieracium pratense Tausch
  Genus: Lactuca
    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 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: Lapsana
    Lapsana communis L.*+
        common nipplewort, nipplewort
  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: Packera
    Packera aurea (L.) A.Löve & D.Löve*+
        golden ragwort, heart-leaved groundsel
             Senecio aureus L.
             Senecio aureus L. var. aquilonius Fernald
             Senecio aureus L. var. gracilis (Pursh) Hook.
             Senecio aureus L. var. intercursus Fernald
             Senecio gracilis Pursh
  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 racemosa Michx.*+
        glaucous white-lettuce, purple rattlesnake-root
             Nabalus racemosus (Michx.) DC.
             Prenanthes racemosa Michx. subsp. multiflora
             Prenanthes racemosa Michx. var. multiflora (Cronquist) Dorn
             Prenanthes racemosa Michx. var. racemosa
  Genus: Ratibida
    Ratibida pinnata (Vent.) Barnhart*+
        globular coneflower, yellow coneflower
             Lepachys pinnata (Vent.) Torr. & A.Gray
             Rudbeckia pinnata Vent.
  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
    Rudbeckia triloba L. var. triloba *+
        brown-eyed Susan, three-lobed coneflower
  Genus: Silphium
    Silphium integrifolium Michx. var. neglectum Settle & T.R.Fisher+
        prairie rosinweed, whole-leaf rosinweed
    Silphium perfoliatum L. var. perfoliatum *+
        cup-plant
    Silphium terebinthinaceum Jacq. var. terebinthinaceum *+
        basal-leaved rosinweed, prairie-dock, prairie rosinweed
             Silphium rumicifolium Small
  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 canadensis L. var. scabra Torr. & A.Gray*+
        Canadian goldenrod, common goldenrod, tall goldenrod
             Solidago altissima L.
             Solidago altissima L. var. pluricephala M.C.Johnst.
             Solidago altissima L. var. procera (Aiton) Fernald
             Solidago hirsutissima Mill.
             Solidago lunellii Rydb.
             Solidago procera Aiton
    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 juncea Aiton*+
        early goldenrod
             Solidago arguta Aiton var. scabrella Torr. & A.Gray
             Solidago juncea Aiton f. juncea
             Solidago juncea Aiton f. scabrella (Torr. & A.Gray) Fernald
             Solidago juncea Aiton var. scabrella (Torr. & A.Gray) A.Gray
    Solidago riddellii Frank ex Riddell*+
        Riddell's goldenrod
             Oligoneuron riddellii (Frank ex Riddell) Rydb.
    Solidago rigida L.*+
        rigid goldenrod, stiff goldenrod
    Solidago rigida L. subsp. rigida+
        rigid goldenrod, stiff goldenrod
             Oligoneuron grandiflorum (Raf.) Small
             Oligoneuron rigidum (L.) Small
             Oligoneuron rigidum (L.) Small var. rigidum
             Solidago grandiflora Raf.
             Solidago rigida L. var. rigida
    Solidago speciosa Nutt. var. speciosa +
        showy goldenrod
             Solidago conferta Mill.
             Solidago harperi Mack.
    Solidago uliginosa Nutt.*+
        northern bog goldenrod
             Solidago chrysolepis Fernald
             Solidago humilis Pursh var. peracuta Fernald
             Solidago linoides Torr. & A.Gray
             Solidago neglecta Torr. & A.Gray
             Solidago purshii Porter
             Solidago uliginosa Nutt. var. linoides (Torr. & A.Gray) Fernald
             Solidago uliginosa Nutt. var. neglecta (Torr. & A.Gray) Fernald
             Solidago uliginosa Nutt. var. peracuta (Fernald) Friesner
             Solidago uliginosa Nutt. var. uliginosa
             Solidago uniligulata (DC.) Porter
             Solidago uniligulata (DC.) Porter var. neglecta (Torr. & A.Gray) Fernald
    Solidago ulmifolia Muhl. ex Willd. var. ulmifolia *+
        elm-leaved goldenrod
  Genus: Sonchus
    Sonchus arvensis L.*+
        field sow-thistle, perennial sow-thistle
    Sonchus arvensis L. var. arvensis +
        field sow-thistle, perennial sow-thistle
             Sonchus arvensis L. subsp. arvensis
             Sonchus arvensis L. var. shumovichii B.Boivin
             Sonchus arvensis L. var. typicus Beck
    Sonchus arvensis L. var. glabrescens Günther, Grab. & Wimm.*+
        marsh sow-thistle
             Sonchus arvensis L. subsp. uliginosus
             Sonchus uliginosus M.Bieb.
    Sonchus oleraceus L.*+
        common sow-thistle, field sow-thistle
  Genus: Taraxacum
    Taraxacum officinale Weber*+
        common dandelion
  Genus: Tragopogon
    Tragopogon dubius Scop.*+
        fistulous goat's-beard, greater sand goat's-beard, yellow salsify
             Tragopogon dubius Scop. subsp. major
             Tragopogon major Jacq.
    Tragopogon pratensis L.
        lesser goat's-beard, meadow salsify, showy goat's-beard, yellow goat's-beard
  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.
Family: Berberidaceae
  Genus: Berberis
    Berberis thunbergii DC.*+
        Japanese barberry
  Genus: Caulophyllum
    Caulophyllum thalictroides (L.) Michx.*+
        blue cohosh, papoose-root, squaw-root
             Caulophyllum thalictroides (L.) Michx. var. thalictroides
             Leontice thalictroides L.
  Genus: Podophyllum
    Podophyllum peltatum L.*+
        May-apple, wild mandrake
             Podophyllum peltatum L. f. aphyllum Plitt
             Podophyllum peltatum L. f. biltmoreanum Steyerm.
             Podophyllum peltatum L. f. deamii Raymond
             Podophyllum peltatum L. f. polycarpum (Clute) Plitt
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 pumila L.*+
        bog birch, dwarf birch, swamp birch
             Betula borealis Spach
             Betula glandulifera (Regel) B.T.Butler
             Betula glandulosa Michx. var. glandulifera (Regel) Gleason
             Betula glandulosa Michx. var. hallii (T.J.Howell) C.L.Hitchc.
             Betula hallii T.J.Howell
             Betula nana L. var. glandulifera (Regel) B.Boivin
             Betula pubescens Ehrh. subsp. borealis
             Betula pumila L. var. glandulifera Regel
             Betula pumila L. var. glabra Regel
             Betula pumila L. var. pumila
             Betula pumila L. var. renifolia Fernald
  Genus: Carpinus
    Carpinus caroliniana Walter subsp. virginiana*+
        American hornbeam, blue-beech, hornbeam, ironwood
             Carpinus betulus L. var. virginiana Marshall
             Carpinus caroliniana Walter var. virginiana (Marshall) Fernald
             Carpinus virginiana (Marshall) Sudw. 1893, not Miller 1768
  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.
  Genus: Ostrya
    Ostrya virginiana (Mill.) K.Koch*+
        eastern hop-hornbeam, ironwood
             Carpinus virginiana Mill.
             Ostrya virginica Willd. var. glandulosa Spach
             Ostrya virginiana (Mill.) K.Koch f. glandulosa (Spach) J.F.Macbr.
             Ostrya virginiana (Mill.) K.Koch f. virginiana
             Ostrya virginiana (Mill.) K.Koch subsp. lasia
             Ostrya virginiana (Mill.) K.Koch var. glandulosa (Spach) Sarg.
             Ostrya virginiana (Mill.) K.Koch var. lasia Fernald
             Ostrya virginiana (Mill.) K.Koch var. virginiana
Family: Bignoniaceae
  Genus: Catalpa
    Catalpa speciosa (Warder ex Barney) Warder ex Engelm.*+
        northern catalpa
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 latifolium Michx.*+
        American gromwell, broad-leaved gromwell
  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 hirsuta (L.) Scop. var. pycnocarpa (M.Hopkins) Rollins+
        cream-flower rock-cress, hairy rock-cress
             Arabis hirsuta (L.) Scop. subsp. pycnocarpa
             Arabis ovata sensu Small, non Michx.
             Arabis pycnocarpa M.Hopkins
             Arabis pycnocarpa M.Hopkins var. pycnocarpa
    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.
  Genus: Berteroa
    Berteroa incana (L.) DC.*+
        hoary false madwort, hoary-alyssum
             Alyssum incanum L.
  Genus: Brassica
    Brassica nigra (L.) W.D.J.Koch*+
        black mustard
             Sinapis nigra L.
  Genus: Camelina
    Camelina microcarpa Andrz. ex DC.*+
        little-pod false flax, small-fruited false flax
             Camelina sativa (L.) Crantz subsp. microcarpa
  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 bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb.*+
        spring-cress
             Arabis bulbosa Schreb. ex Muhl.
             Arabis rhomboidea Pers.
             Cardamine rhomboidea (Pers.) DC.
    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 douglassii (Torr.) Britton*+
        limestone bitter-cress, purple spring-cress
             Arabis douglassii Torr.
             Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. var. purpurea (Torr.) Britton, Sterns & Poggenb.
             Cardamine rhomboidea (Pers.) DC. var. purpurea Torr.
    Cardamine flexuosa With.
        bending bitter-cress
             Cardamine hirsuta L. subsp. flexuosa
             Cardamine konaensis H.St.John
  Genus: Draba
    Draba arabisans Michx.*+
        rock whitlow-grass
             Draba arabisans Michx. var. arabisans
             Draba arabisans Michx. var. superiorensis Butters & Abbe
    Draba reptans (Lam.) Fernald*+
        Carolina whitlow-grass, common whitlow-grass
             Draba caroliniana Walter
             Draba caroliniana Walter f. stellifera O.E.Schulz
             Draba micrantha Nutt.
             Draba reptans (Lam.) Fernald f. micrantha (Nutt.) C.L.Hitchc.
             Draba reptans (Lam.) Fernald f. reptans
             Draba reptans (Lam.) Fernald subsp. stellifera
             Draba reptans (Lam.) Fernald var. micrantha (Nutt.) Fernald
             Draba reptans (Lam.) Fernald var. reptans
             Draba reptans (Lam.) Fernald var. stellifera (O.E.Schulz) C.L.Hitchc.
             Draba reptans (Lam.) Fernald var. typica C.L.Hitchc.
  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: Raphanus
    Raphanus raphanistrum L.+
        jointed charlock, white charlock, wild radish
    Raphanus sativus L.*+
        garden radish, wild radish
             Raphanus raphanistrum L. var. sativus (L.) Beck
  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
    Rorippa palustris (L.) Besser subsp. hispida+
        hispid marsh-cress, hispid yellow-cress
             Brachiolobos hispidus Desv.
             Radicula hispida (Desv.) Britton
             Rorippa hispida (Desv.) Britton
             Rorippa islandica (Oeder) Borbás var. hispida (Desv.) Butters & Abbe
             Rorippa palustris (L.) Besser var. hispida (Desv.) Rydb.
  Genus: Sinapis
    Sinapis arvensis L.*+
        California rape, charlock mustard
             Brassica arvensis (L.) Rabenh.
             Brassica kaber (DC.) L.C.Wheeler
             Brassica kaber (DC.) L.C.Wheeler var. pinnatifida (Stokes) L.C.Wheeler
             Brassica kaber (DC.) L.C.Wheeler var. schkuhriana (Rchb.) L.C.Wheeler
  Genus: Sisymbrium
    Sisymbrium altissimum L.*+
        tall tumble mustard
             Norta altissima (L.) Britton
  Genus: Thlaspi
    Thlaspi arvense L.*+
        field pennycress
Family: Caesalpiniaceae
  Genus: Gymnocladus
    Gymnocladus dioica (L.) K.Koch*+
        Kentucky coffee-tree
             Guilandina dioica L.
Family: Campanulaceae
  Genus: Campanula
    Campanula americana L.*+
        American bellflower, tall bellflower
             Campanulastrum americanum (L.) Small
             Campanula americana L. var. illinoensis (Fresen.) Farw.
    Campanula aparinoides Pursh var. grandiflora Holz.+
        marsh bellflower
             Campanula aparinoides Pursh var. uliginosa (Rydb.) Gleason
             Campanula uliginosa Rydb.
    Campanula rapunculoides L.*+
        creeping bellflower, European bellflower, rampion bellflower, rover bellflower
             Campanula rapunculoides L. var. ucranica (Besser) K.Koch
    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: Cannabis
    Cannabis sativa L.*+
        hemp, Indian hemp, marijuana
             Cannabis indica Lam.
             Cannabis indica Lam. var. kafiristanica Vavilov
             Cannabis ruderalis Janisch.
             Cannabis sativa L. subsp. indica
             Cannabis sativa L. var. indica subsp. indica
             Cannabis sativa L. var. kafiristanica (Vavilov) E.Small & Cronquist subsp. indica
             Cannabis sativa L. subsp. sativa
             Cannabis sativa L. var. sativa subsp. sativa
             Cannabis sativa L. var. spontanea Vavilov subsp. sativa
  Genus: Humulus
    Humulus lupulus L. var. lupuloides E.Small+
        common hop, hop
             Humulus americanus Nutt.
             Humulus lupulus L. subsp. americanus
Family: Capparidaceae
  Genus: Polanisia
    Polanisia dodecandra (L.) DC. subsp. dodecandra*+
        rough-seed clammy-weed
             Cleome dodecandra L.
             Polanisia dodecandra (L.) DC. var. dodecandra
             Polanisia graveolens Raf.
Family: Caprifoliaceae
  Genus: Lonicera
    Lonicera reticulata Raf.*+
        grape honeysuckle, yellow honeysuckle
             Lonicera prolifera (Kirchn.) Booth ex Rehder
             Lonicera prolifera (Kirchn.) Booth ex Rehder var. glabra Gleason
             Lonicera prolifera (Kirchn.) Booth ex Rehder var. prolifera
             Lonicera sullivantii A.Gray
    Lonicera tatarica L.*+
        Tartarian honeysuckle
             Lonicera tatarica L. f. albiflora (DC.) House
             Lonicera tatarica L. var. xanthocarpa Endl.
             Xylosteum tataricum (L.) Medik.
    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
    Sambucus racemosa L. var. pubens (Michx.) Koehne subsp. pubens*+
        red elderberry, red-berried elder, scarlet elderberry
             Sambucus pubens Michx.
             Sambucus pubens Michx. f. dissecta (Britton) Schwer.
             Sambucus racemosa L. var. pubens (Michx.) Koehne
  Genus: Symphoricarpos
    Symphoricarpos albus (L.) S.F.Blake var. albus +
        snowberry
             Symphoricarpos albus (L.) S.F.Blake var. pauciflorus (W.J.Robbins ex A.Gray) S.F.Blake
             Symphoricarpos pauciflorus W.J.Robbins ex A.Gray
             Symphoricarpos racemosus Michx.
             Symphoricarpos racemosus Michx. var. pauciflorus W.J.Robbins ex A.Gray
    Symphoricarpos occidentalis Hook.*+
        western snowberry, wolfberry
  Genus: Triosteum
    Triosteum aurantiacum E.P.Bicknell var. aurantiacum +
        early horse-gentian, orange-fruit horse-gentian
             Triosteum aurantiacum E.P.Bicknell f. glaucescens (Wiegand) F.C.Lane
             Triosteum aurantiacum E.P.Bicknell var. glaucescens Wiegand
             Triosteum perfoliatum L. var. aurantiacum (E.P.Bicknell) Wiegand
    Triosteum perfoliatum L.*+
        feverwort, late horse-gentian, tinker's-weed, wild-coffee
             Triosteum perfoliatum L. var. perfoliatum
  Genus: Viburnum
    Viburnum acerifolium L.*+
        dockmackie, maple-leaved arrow-wood, maple-leaved viburnum
             Viburnum acerifolium L. f. collinsii Rouleau
             Viburnum acerifolium L. f. eburneum House
             Viburnum acerifolium L. f. ovatum Rehder
             Viburnum acerifolium L. var. acerifolium
    Viburnum lantana L.*+
        wayfaring-tree
             Viburnum lantana L. var. sphaerocarpum A.Gray ex Fernald
    Viburnum lentago L.*+
        nannyberry, sheepberry
             Viburnum X vetteri Zabel X
    Viburnum opulus L. subsp. opulus*+
        cranberry viburnum, European cranberry-bush, guelder rose, snowball-bush
             Viburnum opulus L. var. opulus
             Viburnum opulus L. var. roseum L.
Family: Caryophyllaceae
  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 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: Gypsophila
    Gypsophila muralis L.*+
        cushion baby's-breath, low baby's-breath
             Psammophiliella muralis (L.) Ikonn.
  Genus: Saponaria
    Saponaria officinalis L.*+
        bouncing-bet, soapwort
             Lychnis saponaria Jess.
  Genus: Silene
    Silene antirrhina L.*+
        sleepy catchfly, sleepy silene
             Silene antirrhina L. f. apetala Farw.
             Silene antirrhina L. f. bicolor Farw.
             Silene antirrhina L. f. deaneana Fernald
             Silene antirrhina L. var. confinis Fernald
             Silene antirrhina L. var. depauperata Rydb.
             Silene antirrhina L. var. divaricata B.L.Rob.
             Silene antirrhina L. var. laevigata Engelm. & A.Gray
             Silene antirrhina L. var. subglaber Engelm. & A.Gray
             Silene antirrhina L. var. vaccarifolia Rydb.
    Silene armeria L.*+
        sweet-William catchfly, sweet-William silene
    Silene csereii Baumg.*+
        Balkan catchfly, glaucous campion
    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 stellata (L.) W.T.Aiton var. scabrella (Nieuwl.) E.J.Palmer & Steyerm.*+
        starry campion, widow's-frill
             Evactoma stellata (L.) Raf. var. scabrella Nieuwl.
             Lychnis stellata L. var. scabrella (Nieuwl.) E.J.Palmer & Steyerm.
             Silene scabrella (Nieuwl.) G.N.Jones
    Silene vulgaris (Moench) Garcke*+
        bladder-campion, maiden's-tears
             Oberna commutata (Guss.) Ikonn.
             Silene cucubalus Wibel
             Silene inflata (Salisb.) Sm.
             Silene latifolia (Mill.) Britten & Rendle
  Genus: Stellaria
    Stellaria longifolia Muhl. ex Willd.*+
        long-leaved stitchwort
    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: Atriplex
    Atriplex patula L.*+
        common orache, spear-scale, spear orach, spear saltbush
             Atriplex patula L. subsp. patula
             Atriplex patula L. var. bracteata auct. non Westerl.
             Atriplex patula L. var. hastata A.Gray
             Atriplex patula L. var. japonica Level.
             Atriplex patula L. var. patula
    Atriplex prostrata Boucher ex DC.+
        fat-hen, thin-leaf orach, triangle orache
             Atriplex hastata sensu Aellen, non L.
             Atriplex latifolia Wahlenb.
             Atriplex patula L. subsp. hastata
             Atriplex patula L. var. hastata auct. non (L.) A.Gray
             Atriplex patula L. var. triangularis (Willd.) Thorne & Welsh
             Atriplex triangularis Willd.
  Genus: Chenopodium
    Chenopodium album L.*+
        common lamb's-quarters, lamb's-quarters, pigweed
             Chenopodium album L. f. lanceolatum (Muhl. ex Willd.) Schinz & Thell.
             Chenopodium album L. var. album
             Chenopodium album L. var. lanceolatum (Muhl. ex Willd.) Coss. & Germ.
             Chenopodium album L. var. missouriense (Aellen) Bassett & Crompton
             Chenopodium album L. var. stevensii Aellen
             Chenopodium lanceolatum Muhl. ex Willd.
             Chenopodium missouriense Aellen
    Chenopodium capitatum (L.) Ambrosi var. capitatum *+
        blite goosefoot, Indian ink, Indian-paint, strawberry-blite,
             Blitum capitatum L.
  Genus: Kochia
    Kochia scoparia (L.) Schrad. subsp. scoparia*+
        burning bush, common kockia, Mexican fireweed, summer-cypress
Family: Cistaceae
  Genus: Hudsonia
    Hudsonia tomentosa Nutt. var. tomentosa *+
        false heather, woolly beach-heather
Family: Commelinaceae
  Genus: Tradescantia
    Tradescantia bracteata Small*+
        bracted spiderwort, long-bracted spiderwort, sticky spiderwort
    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: Convolvulaceae
  Genus: Calystegia
    Calystegia sepium (L.) R.Br.*+
        hedge bindweed, hedge false bindweed
             Calystegia sepium (L.) R.Br. subsp. americana
             Calystegia sepium (L.) R.Br. subsp. angulata
             Calystegia sepium (L.) R.Br. subsp. sepium
             Calystegia sepium (L.) R.Br. var. angulata (Brummitt) N.H.Holmgren
             Calystegia sepium (L.) Pursh var. pubescens A.Gray
             Calystegia sepium (L.) R.Br. var. repens (L.) A.Gray
             Convolvulus nashii House
             Convolvulus repens L.
             Convolvulus sepium L.
             Convolvulus sepium L. var. americanus Sims
             Convolvulus sepium L. var. communis R.M.Tryon
             Convolvulus sepium L. var. repens (L.) A.Gray
             Convolvulus sepium L. var. sepium
  Genus: Convolvulus
    Convolvulus arvensis L.*+
        field bindweed
             Convolvulus ambigens House
             Convolvulus arvensis L. var. obtusifolius Choisy
             Convolvulus incanus auct. non Vahl
             Strophocaulos arvensis (L.) Small
Family: Cornaceae
  Genus: Cornus
    Cornus alternifolia L.f.*+
        alternate-leaved dogwood, pagoda dogwood
             Swida alternifolia (L.f.) Small
    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 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: Crassulaceae
  Genus: Sedum
    Sedum acre L.*+
        gold-moss stonecrop, wall-pepper, yellow sedum
    Sedum telephium L. subsp. telephium*+
        live-forever, witch's-moneybags
             Hylotelephium telephium (L.) H.Ohba subsp. telephium
             Sedum purpureum (L.) Schult.
             Sedum telephium L. subsp. purpureum
             Sedum telephium L. var. purpureum L.
             Sedum triphyllum (Haw.) S.F.Gray
Family: Cucurbitaceae
  Genus: Cucurbita
    Cucurbita pepo L.
        field pumpkin, pumpkin
  Genus: Echinocystis
    Echinocystis lobata (Michx.) Torr. & A.Gray*+
        balsam-apple, wild-cucumber
             Micrampelis lobata (Michx.) Greene
             Sicyos lobata Michx.
  Genus: Sicyos
    Sicyos angulatus L.*+
        bur-cucumber
Family: Cupressaceae
  Genus: Juniperus
    Juniperus communis L. var. depressa Pursh*+
        common juniper
             Juniperus canadensis Lodd. ex Burgsd.
             Juniperus communis L. subsp. depressa
             Juniperus depressa (Pursh) Raf.
    Juniperus virginiana L. var. virginiana *+
        eastern red-cedar
             Juniperus virginiana L. subsp. crebra
             Juniperus virginiana L. var. crebra Fernald & Griscom
             Sabina virginiana (L.) Antoine
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: Carex
    Carex albursina E.Sheld.*+
        blunt-scaled wood sedge, white bear sedge
             Carex laxiflora Lam. var. latifolia Boott
    Carex alopecoidea Tuck.*+
        brown-headed fox sedge, foxtail sedge
    Carex aquatilis Wahlenb.
        long-bracted tussock sedge, water sedge
    Carex aquatilis Wahlenb. var. aquatilis *+
        long-bracted tussock sedge, water sedge
             Carex acutinella Mack.
             Carex aquatilis Wahlenb. subsp. altior
             Carex aquatilis Wahlenb. var. altior (Rydb.) Fernald
             Carex interimus Maguire
             Carex pachystoma T.Holm
             Carex suksdorfii Kük.
             Carex variabilis L.H.Bailey
    Carex bebbii (L.H.Bailey) Olney ex Fernald*+
        Bebb's oval sedge, Bebb's sedge
             Carex tribuloides Wahlenb. var. bebbii L.H.Bailey
    Carex bicknellii Britton*+
        Bicknell's oval sedge, Bicknell's sedge
             Carex bicknellii Britton var. bicknellii
    Carex blanda Dewey*+
        common wood sedge, eastern woodland sedge, wood sedge
             Carex blanda Dewey var. blanda
             Carex laxiflora Lam. var. blanda (Dewey) Boott
    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 buxbaumii Wahlenb.*+
        Buxbaum's sedge
             Carex buxbaumii Wahlenb. f. heterostachya Andersson
             Carex buxbaumii Wahlenb. var. anticostensis Raymond
             Carex holmiana Mack.
             Carex polygama Schkuhr
    Carex cephalophora Muhl. ex Willd.*+
        oval-headed sedge, short-headed bracted sedge, wood-bank sedge
    Carex comosa Boott*+
        bristly sedge
    Carex deweyana Schwein. var. deweyana *+
        Dewey's sedge
             Carex deweyana Schwein. subsp. deweyana
    Carex gracillima Schwein.*+
        graceful sedge, purple-sheathed graceful sedge
             Carex gracillima Schwein. var. macerrima Fernald & Wiegand
    Carex gravida L.H.Bailey*+
        heavy sedge, long-awned bracted sedge
             Carex gravida L.H.Bailey var. gravida
             Carex lunelliana Mack.
    Carex grisea Wahlenb.*+
        eastern narrow-leaved sedge, gray sedge
             Carex amphibola auct. mult.
             Carex amphibola Steud. var. turgida Fernald
    Carex lasiocarpa Ehrh. subsp. americana*+
        American woolly-fruit sedge, narrow-leaved woolly sedge, woolly-fruit sedge
             Carex filiformis auct. non L.
             Carex lanuginosa Michx. var. americana (Fernald) B.Boivin
             Carex lasiocarpa Ehrh. var. americana Fernald
    Carex lupulina Willd.*+
        common hop sedge, hop sedge
             Carex lupulina Willd. var. pedunculata A.Gray
             Carex X macounii Dewey X
    Carex molesta Mack. ex Bright*+
        field oval sedge, troublesome sedge
    Carex pellita Willd.*+
        broad-leaved woolly sedge
             Carex lanuginosa auct. non Michx.
             Carex lasiocarpa Ehrh. var. latifolia (Boeck.) Gilly
    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 prairea Dewey*+
        fen panicled sedge, prairie sedge
             Carex diandra Schrank var. ramosa (Boott) Fernald
    Carex pseudocyperus L.*+
        cypress-like sedge, false bristly sedge
    Carex radiata (Wahlenb.) Small*+
        eastern star sedge, straight-styled wood sedge
             Carex rosea Schkuhr ex Willd., misapplied
             Carex rosea Schkuhr ex Willd. var. radiata (Wahlenb.) Dewey
             Carex stellulata Gooden. var. radiata Wahlenb.
    Carex retrorsa Schwein.*+
        deflexed bottlebrush sedge, knot-sheath sedge, retrorse sedge
    Carex richardsonii R.Br.*+
        prairie hummock sedge, Richardson's sedge
    Carex rosea Schkuhr ex Willd.*+
        curly-styled wood sedge, rosy sedge, stellate sedge
             Carex convoluta Mack.
             Carex flaccidula Steud.
             Carex rosea Schkuhr ex Willd. var. pusilla Peck & Howe
    Carex sterilis Willd.*+
        dioecious sedge, fen star sedge
             Carex elachycarpa Fernald
             Carex muricata L. var. sterilis (Willd.) Gleason
             Carex X minganinsularum Raymond X
             Kobresia elachycarpa (Fernald) Fernald
    Carex stipata Muhl. ex Willd. var. stipata *+
        common fox sedge, owl-fruit sedge
             Carex stipata Muhl. ex Willd. var. crassicurta Peck
             Carex stipata Muhl. ex Willd. var. subsecuta Peck
    Carex stricta Lam.*+
        common tussock sedge, hummock sedge, tussock sedge, uptight sedge
             Carex stricta Lam. var. curtissima Peck
             Carex stricta Lam. var. strictior (Dewey) J.Carey
             Carex stricta Lam. var. stricta
             Carex stricta Lam. var. xerocarpa (S.H.Wright) Britton
             Carex strictior Dewey
             Carex xerocarpa S.H.Wright
    Carex tenera Dewey*+
        marsh straw sedge, narrow-leaved oval sedge, quill sedge
    Carex tenera Dewey var. tenera +
        marsh straw sedge, narrow-leaved oval sedge, quill sedge
             Carex straminea Willd. ex Schkuhr var. tenera (Dewey) Barratt
    Carex trichocarpa Willd.*+
        hairy-fruit lake sedge, hairy-fruit sedge
    Carex utriculata Boott*+
        common yellow lake sedge, Northwest Territory sedge
             Carex inflata Huds. var. utriculata (Boott) Druce
             Carex laevirostris (Blytt ex Fr.) Fr.
             Carex rhynchosphysa Fisch., C.A.Mey. & Avé-Lall.
             Carex rostrata Stokes var. utriculata (Boott) L.H.Bailey
    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.
  Genus: Cyperus
    Cyperus erythrorhizos Muhl.*+
        red-rooted sedge
             Cyperus cupreus J.Presl & C.Presl
             Cyperus erythrorhizos Muhl. var. cupreus (J.Presl & C.Presl) Kük.
             Cyperus halei Torr. ex Britton
             Cyperus occidentalis Torr.
             Cyperus washingtonensis Gand.
    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 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
  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 erythropoda Steud.*+
        bald spike-rush
             Eleocharis calva Torr.
             Eleocharis glaucescens (Willd.) Roem. & Schult.
             Scirpus glaucus Torr.
             Trichophyllum palustre (L.) Farw. var. calvum (Torr.) House
    Eleocharis intermedia Schult.*+
        matted spike-rush
             Eleocharis intermedia Schult. var. habereri Fernald
             Eleocharis reclinata Kunth
             Scirpus intermedius Muhl.
  Genus: Eriophorum
    Eriophorum angustifolium Honck. subsp. angustifolium*+
        cotton-grass
             Eriophorum angustifolium Honck. var. angustifolium
             Eriophorum polystachion auct. non L.
  Genus: Rhynchospora
    Rhynchospora capillacea Torr.*+
        hair beak-rush, needle beak sedge
             Phaeocephalum capillaceum (Torr.) Farw.
             Rhynchospora capillacea Torr. f. capillacea
             Rhynchospora capillacea Torr. f. leviseta (E.J.Hill) Fernald
             Rhynchospora capillacea Torr. var. leviseta E.J.Hill ex A.Gray
             Rhynchospora setacea (Muhl.) MacMill., 1892, non Vahl 1806
             Rhynchospora smallii Britton
             Triodon capillaceus (Torr.) Farw.
  Genus: Schoenoplectus
    Schoenoplectus acutus (Muhl. ex Bigelow) A.Löve & D.Löve var. acutus *+
        hard-stem bulrush
             Schoenoplectus lacustris (L.) Palla subsp. acutus
             Scirpus acutus Muhl. ex Bigelow
             Scirpus lacustris L., pro parte
    Schoenoplectus acutus (Muhl. ex Bigelow) A.Löve & D.Löve X S. tabernaemontani (C.C.Gmel.) Palla+
    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 atrovirens Willd.*+
        black bulrush, dark-green bulrush
             Scirpus atrovirens Willd. f. proliferus F.J.Herm.
             Scirpus atrovirens Willd. var. atrovirens
             Scirpus atrovirens Willd. var.
    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
    Scirpus cyperinus (L.) Kunth X S. pedicellatus 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: 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.
  Genus: Matteuccia
    Matteuccia struthiopteris (L.) Todaro var. pensylvanica (Willd.) C.V.Morton*+
        American ostrich fern, ostrich fern
             Matteuccia pensylvanica (Willd.) Raymond
             Matteuccia struthiopteris (L.) Todaro var. pubescens (Terry) Clute
             Onoclea struthiopteris (L.) Hoffm. var. pensylvanica (Willd.) B.Boivin
             Pteretis nodulosa (Michx.) Nieuwl.
             Pteretis nodulosa (Michx.) Nieuwl. f. pubescens (Terry) Fernald
             Pteretis pensylvanica (Willd.) Fernald
             Pteretis pensylvanica (Willd.) Fernald f. pubescens (Terry) Fernald
             Pteretis struthiopteris (L.) Nieuwl.
             Struthiopteris pensylvanica Willd.
  Genus: Onoclea
    Onoclea sensibilis L.*+
        sensitive fern
             Onoclea sensibilis L. f. obtusilobata (Schkuhr) Gilbert
             Onoclea sensibilis L. var. obtusilobata (Schkuhr) Torr.
Family: Elaeagnaceae
  Genus: Elaeagnus
    Elaeagnus angustifolia L.*+
        oleaster, Russian olive
  Genus: Shepherdia
    Shepherdia argentea (Pursh) Nutt.*+
        buffalo-berry, silver buffalo-berry
             Elaeagnus utilis A.Nelson
             Hippophae argentea Pursh
             Lepargyrea argentea (Pursh) Greene
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 fluviatile L.*+
        pipes, river horsetail, water horsetail
             Equisetum fluviatile L. f. linnaeanum (Döll) M.Broun
             Equisetum fluviatile L. f. minus (R.Br.) M.Broun
             Equisetum fluviatile L. f. natans (Vict.) M.Broun
             Equisetum fluviatile L. var. limosum (L.) Gilbert
             Equisetum limosum L.
    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 laevigatum A.Braun*+
        smooth horsetail, smooth scouring rush
             Equisetum funstonii A.A.Eaton
             Equisetum kansanum J.H.Schaffn.
             Equisetum laevigatum A.Braun subsp. funstonii
             Hippochaete laevigata (A.Braun) Farw.
Family: Euphorbiaceae
  Genus: Chamaesyce
    Chamaesyce maculata (L.) Small*+
        milk-purslane, spotted sand-mat, wart-weed
             Chamaesyce mathewsii Small
             Chamaesyce supina (Raf.) Moldenke
             Chamaesyce tracyi Small
             Euphorbia maculata L.
             Euphorbia supina Raf.
    Chamaesyce nutans (Lag.) Small*+
        eye-bane, nodding spurge
             Chamaesyce maculata auct. non (L.) Small
             Chamaesyce preslii (Guss.) Arthur
             Euphorbia maculata auct. non L.
             Euphorbia nutans Lag.
             Euphorbia preslii Guss.
  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
    Euphorbia peplus L.+
        petty spurge
             Galarhoeus peplus (L.) Haw.
             Tithymalus peplus (L.) Hill
    Euphorbia X pseudovirgata (Schur) Soó X
             Euphorbia pseudovirgata (Schur) Soó
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: 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.
  Genus: Caragana
    Caragana arborescens Lam.*+
        pea-tree, Siberian pea-shrub
  Genus: Coronilla
    Coronilla varia L.*+
        crown-vetch, purple crown-vetch
             Securigera varia (L.) Lassen
  Genus: Dalea
    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
  Genus: Lathyrus
    Lathyrus latifolius L.*+
        everlasting pea, perennial pea-vine
    Lathyrus ochroleucus Hook.*+
        cream pea-vine, pale vetchling, white pea
    Lathyrus palustris L.*+
        marsh pea, marsh vetchling, slender-stem pea-vine
             Lathyrus myrtifolius Muhl. ex Willd.
             Lathyrus myrtifolius Muhl. ex Willd. var. macranthus T.G.White
             Lathyrus palustris L. subsp. pilosus
             Lathyrus palustris L. var. genuinus Gren. & Godr.
             Lathyrus palustris L. var. linearifolius Ser.
             Lathyrus palustris L. var. macranthus (T.G.White) Fernald
             Lathyrus palustris L. var. meridionalis Butters & H.St.John
             Lathyrus palustris L. var. myrtifolius (Muhl. ex Willd.) A.Gray
             Lathyrus palustris L. var. palustris
             Lathyrus palustris L. var. pilosus (Cham.) Ledeb.
             Lathyrus palustris L. var. retusus Fernald & H.St.John
             Lathyrus pilosus Cham.
             Orobus myrtifolius (Muhl. ex Willd.) A.Hall
    Lathyrus pratensis L.
        meadow pea, meadow pea-vine, yellow vetchling
    Lathyrus tuberosus L.*+
        tuberous sweet pea, tuberous vetchling
    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: Lotus
    Lotus corniculatus L.*+
        bird's-foot deer-vetch, bird's-foot trefoil
             Lotus corniculatus L. var. arvensis (Schkuhr) Ser. ex DC.
  Genus: Medicago
    Medicago lupulina L.*+
        black medick
             Medicago cupianiana Guss.
             Medicago lupulina L. var. cupianiana (Guss.) Boiss.
             Medicago lupulina L. var. glandulosa Neilr.
    Medicago sativa L.*+
        alfalfa
    Medicago sativa L. subsp. sativa+
        alfalfa, blue alfalfa
  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: Trifolium
    Trifolium campestre Schreb.*+
        field clover, low hop clover, pinnate hop clover
             Trifolium procumbens 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.
    Trifolium repens L.*+
        white clover
  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
    Vicia villosa Roth*+
        hairy vetch, winter vetch
             Vicia villosa Roth subsp. villosa
Family: Fagaceae
  Genus: Fagus
    Fagus grandifolia Ehrh.*+
        American beech, beechnut
             Fagus americana Sweet
             Fagus ferruginea Aiton
             Fagus ferruginea Aiton var. caroliniana Loudon
             Fagus grandifolia Ehrh. subsp. heterophylla
             Fagus grandifolia Ehrh. var. caroliniana (Loudon) Fernald & Rehder
             Fagus grandifolia Ehrh. var. grandifolia
  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: Corydalis
    Corydalis sempervirens (L.) Pers.*+
        pink and yellow corydalis, pale corydalis, rock harlequin
             Capnoides sempervirens (L.) Borkh.
             Fumaria sempervirens L.
  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
    Gentiana andrewsii Griseb. var. andrewsii *+
        Andrews' gentian, bottle gentian, prairie closed gentian
             Dasystephana andrewsii (Griseb.) Small
             Gentiana andrewsii Griseb. f. albiflora Britton
             Pneumonanthe andrewsii (Griseb.) W.A.Weber
  Genus: Gentianopsis
    Gentianopsis procera (Holm) Ma*+
        Great Plains fringed gentian, lesser fringed gentian, small fringed gentian
             Anthopogon virgatum Raf.
             Gentiana barbata Froel. var. browniana Hook.
             Gentianella crinita (Froel.) G.Don subsp. procera
             Gentiana crinita Froel. var. browniana (Hook.) B.Boivin
             Gentiana procera Holm
             Gentianella procera (Holm) Hiitonen
             Gentianopsis virgata (Raf.) Holub
Family: Geraniaceae
  Genus: Geranium
    Geranium bicknellii Britton var. bicknellii *+
        Bicknell's crane's-bill, northern crane's-bill
             Geranium nemorale Suksd. var. bicknellii (Britton) Fernald
    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 missouriense Nutt.*+
        Missouri gooseberry
             Grossularia missouriensis (Nutt.) Coville & Britton
             Ribes gracile Pursh, non Michx.
             Ribes missouriense Nutt. var. ozarkanum Fassett
Family: Haloragaceae
  Genus: Myriophyllum
    Myriophyllum sibiricum Kom.*+
        common water-milfoil, short-spike water-milfoil
             Myriophyllum exalbescens Fernald
             Myriophyllum exalbescens Fernald var. magdalenense (Fernald) A.Löve
             Myriophyllum magdalenense Fernald
             Myriophyllum spicatum L. subsp. exalbescens
             Myriophyllum spicatum L. subsp. squamosum
             Myriophyllum spicatum L. var. capillaceum Lange
             Myriophyllum spicatum L. var. exalbescens (Fernald) Jeps.
             Myriophyllum spicatum L. var. squamosum (Laest. ex Hartman) Hartman
    Myriophyllum spicatum L.*+
        Eurasian water-milfoil, European water-milfoil, spike water-milfoil
    Myriophyllum verticillatum L.*+
        whorled water-milfoil
             Myriophyllum verticillatum L. var. cheneyi Fassett
             Myriophyllum verticillatum L. var. intermedium W.D.J.Koch
             Myriophyllum verticillatum L. var. pectinatum Wallr.
             Myriophyllum verticillatum L. var. pinnatifidum Wallr.
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.
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: 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: Carya
    Carya cordiformis (Wangenh.) K.Koch*+
        bitter-nut hickory, pig-nut, yellow-bud hickory
             Carya cordiformis (Wangenh.) K.Koch var. latifolia Sarg.
             Hicoria cordiformis (Wangenh.) Britton
             Hicoria minima (Marshall) Britton
             Juglans alba L. var. minima Marshall
             Juglans cordiformis Wangenh.
    Carya ovata (Mill.) K.Koch var. ovata *+
        shagbark hickory, shellbark hickory
             Carya ovata (Mill.) K.Koch var. fraxinifolia Sarg.
             Carya ovata (Mill.) K.Koch var. nuttallii Sarg.
             Carya ovata (Mill.) K.Koch var. pubescens Sarg.
             Hicoria alba Britton, pro parte
             Hicoria ovata (Mill.) Britton
  Genus: Juglans
    Juglans cinerea L.*+
        butternut, white walnut
             Wallia cinerea (L.) Alef.
Family: Juncaceae
  Genus: Juncus
    Juncus arcticus Willd. var. balticus (Willd.) Trautv.*+
        Arctic rush, Baltic rush, wire rush
             Juncus arcticus Willd. subsp. ater
             Juncus arcticus Willd. subsp. balticus
             Juncus arcticus Willd. subsp. littoralis
             Juncus arcticus Willd. var. gracilis Hook.
             Juncus arcticus Willd. var. littoralis (Engelm.) B.Boivin
             Juncus arcticus Willd. var. montanus (Engelm.) S.L.Welsh
             Juncus arcticus Willd. var. montanus (Engelm.) Balslev
             Juncus ater Rydb.
             Juncus balticus Willd.
             Juncus balticus Willd. subsp. vallicola
             Juncus balticus Willd. var. condensatus Suksd.
             Juncus balticus Willd. var. eremicus Jeps.
             Juncus balticus Willd. var. littoralis Engelm.
             Juncus balticus Willd. f. dissitiflorus Engelm. ex Fernald & Wiegand var. littoralis Engelm.
             Juncus balticus Willd. var. melanogenus Fernald & Wiegand
             Juncus balticus Willd. var. montanus Engelm.
             Juncus balticus Willd. var. vallicola Rydb.
             Juncus breweri Engelm.
             Juncus vallicola (Rydb.) Rydb.
    Juncus compressus Jacq.*+
        round-fruited rush
    Juncus dudleyi Wiegand*+
        Dudley's rush
             Juncus tenuis Willd. var. dudleyi (Wiegand) F.J.Herm.
             Juncus tenuis Willd. var. uniflorus auct. pro parte, non Farw.
    Juncus tenuis Willd.*+
        path rush, poverty rush, roadside rush
             Juncus macer S.F.Gray
             Juncus macer S.F.Gray f. williamsii (Fernald) F.J.Herm.
             Juncus macer S.F.Gray var. williamsii (Fernald) Fernald
             Juncus tenuis Willd. f. williamsii (Fernald) F.J.Herm.
             Juncus tenuis Willd. var. multicornis E.Mey.
             Juncus tenuis Willd. var. tenuis
             Juncus tenuis Willd. var. williamsii Fernald
Family: Juncaginaceae
  Genus: Triglochin
    Triglochin palustris L.*+
        marsh arrow-grass, slender bog arrow-grass
Family: Lamiaceae
  Genus: Glechoma
    Glechoma hederacea L. var. hederacea +
        creeping-Charlie, gill-over-the-ground, ground-ivy
             Nepeta glechoma Benth.
             Nepeta hederacea (L.) Trevis.
  Genus: Hedeoma
    Hedeoma hispida Pursh*+
        rough false pennyroyal, rough pennyroyal
    Hedeoma pulegioides (L.) Pers.*+
        American false pennyroyal, American pennyroyal
             Cunila pulegioides L.
             Melissa pulegioides (L.) L.
             Ziziphora pulegioides (L.) Desf.
  Genus: Lamium
    Lamium amplexicaule L.*+
        henbit, dead-nettle
             Lamium amplexicaule L. f. albiflorum Dw.Moore
             Lamium amplexicaule L. var. album Pickens & M.C.Pickens
  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 uniflorus Michx.*+
        northern bugleweed, northern water-horehound
             Lycopus virginicus L. var. pauciflorus Benth.
  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.
  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
  Genus: Nepeta
    Nepeta cataria L.*+
        catnip
  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
  Genus: Stachys
    Stachys palustris L.*+
        hedge-nettle, marsh hedge-nettle, woundwort
    Stachys palustris L. subsp. arenicola+
        hedge-nettle, marsh hedge-nettle
             Stachys homotricha (Fernald) Rydb.
             Stachys palustris L. var. homotricha Fernald
             Stachys palustris L. var. phaneropoda Weath.
             Stachys pilosa Nutt. var. arenicola (Britton) G.A.Mulligan & D.B.Munro
    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
Family: Lemnaceae
  Genus: Lemna
    Lemna trisulca L.*+
        forked duckweed, star duckweed
    Lemna turionifera Landolt*+
        perennial duckweed, Turion duckweed
  Genus: Spirodela
    Spirodela polyrrhiza (L.) Schleid.*+
        giant duckweed, greater duckweed
             Lemna polyrrhiza L.
             Spirodela polyrrhiza (L.) Schleid. var. masonii Daubs
  Genus: Wolffia
    Wolffia columbiana H.Karst.*+
        common water-meal
             Bruniera columbiana (H.Karst.) Nieuwl.
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 canadense L. var. canadense *+
        meadow garlic, wild garlic, wild onion
             Allium canadense L. var. ovoideum Farw.
             Allium canadense L. var. robustum Farw.
             Allium mutabile Michx.
    Allium tricoccum Sol. var. burdickii Hanes*+
        narrow-leaved wild leek, wild leek
             Allium burdickii (Hanes) A.G.Jones
    Allium tricoccum Sol. var. tricoccum *+
        ramp, wild leek
             Allium pictum Moldenke
             Allium triflorum Raf.
             Ophioscorodon tricoccum (Sol.) Wallr.
             Validallium tricoccum (Sol.) Small
    Allium tuberosum Rottler ex Spreng.*+
        Chinese chives
  Genus: Erythronium
    Erythronium albidum Nutt.*+
        small white fawn-lily, white dog-tooth violet, white trout-lily
  Genus: Hemerocallis
    Hemerocallis fulva (L.) L.*+
        orange daylily, tawny daylily
             Hemerocallis fulva (L.) L. var. fulva
             Hemerocallis lilioasphodelus L. var. fulva L.
  Genus: Hypoxis
    Hypoxis hirsuta (L.) Coville*+
        common gold-star, common star-grass, yellow star-grass
             Hypoxis carolinensis Michx.
             Hypoxis decumbens L.
             Hypoxis erecta L.
             Hypoxis graminea Pursh
             Hypoxis grandis Pollard
             Hypoxis micrantha Pollard
             Hypoxis pallida Salisb.
             Hypoxis villosa Raf.
             Ornithogalum hirsutum 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.
  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: Trillium
    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
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 cardinalis L. var. cardinalis *+
        cardinal-flower
    Lobelia kalmii L.*+
        bog lobelia, brook lobelia, fen lobelia, Kalm's lobelia, Ontario lobelia
             Lobelia kalmii L. f. leucantha Rouleau
             Lobelia kalmii L. var. strictiflora Rydb.
             Lobelia strictiflora (Rydb.) Lunell
    Lobelia siphilitica L. var. siphilitica +
        great blue lobelia
             Lobelia siphilitica L. f. albiflora Britton
    Lobelia spicata Lam.*+
        pale-spike lobelia, spiked lobelia
    Lobelia spicata Lam. var. hirtella A.Gray+
        hairy pale-spike lobelia, pale-spike lobelia, spiked lobelia
             Lobelia hirtella (A.Gray) Greene
Family: Lythraceae
  Genus: Lythrum
    Lythrum alatum Pursh var. alatum *+
        winged loosestrife, winged lythrum
             Lythrum dacotanum Nieuwl.
    Lythrum salicaria L.*+
        purple loosestrife, spiked loosestrife
             Lythrum salicaria L. var. gracilior Turcz.
             Lythrum salicaria L. var. tomentosum (Mill.) DC.
             Lythrum salicaria L. var. vulgare DC.
Family: Malvaceae
  Genus: Abutilon
    Abutilon theophrasti Medik.*+
        piemarker, velvet-leaf
             Abutilon abutilon (L.) Rusby
             Abutilon avicennae Gaertn.
  Genus: Hibiscus
    Hibiscus trionum L.*+
        flower-of-an-hour
             Trionum trionum (L.) Wooton & Standl.
  Genus: Malva
    Malva moschata L.*+
        musk mallow
    Malva neglecta Wallr.*+
        cheeses, common mallow
             Malva rotundifolia auct. non L.
    Malva verticillata L.+
        cluster mallow, whorled mallow
Family: Menispermaceae
  Genus: Menispermum
    Menispermum canadense L.*+
        Canadian moonseed, common moonseed
Family: Monotropaceae
  Genus: Monotropa
    Monotropa uniflora L.*+
        Indian-pipe
             Monotropa brittonii Small
Family: Moraceae
  Genus: Morus
    Morus alba L.*+
        Russian mulberry, white mulberry
             Morus alba L. f. incurva F.Seym.
             Morus alba L. var. tatarica (L.) Ser.
             Morus tatarica L.
Family: Najadaceae
  Genus: Najas
    Najas gracillima (A.Braun ex Engelm.) Magnus+
        slender water-nymph
             Najas indica (Willd.) Cham. var. gracillima A.Braun ex Engelm.
Family: Nyctaginaceae
  Genus: Mirabilis
    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.
  Genus: Nymphaea
    Nymphaea odorata Aiton*+
        American white water-lily, fragrant water-lily
Family: Oleaceae
  Genus: Fraxinus
    Fraxinus americana L.*+
        white ash
             Fraxinus americana L. f. iodocarpa Fernald
             Fraxinus americana L. var. americana
             Fraxinus americana L. var. biltmoreana (Beadle) J.Wright ex Fernald
             Fraxinus americana L. var. crassifolia Sarg.
             Fraxinus americana L. var. curtissii (Vasey) Small
             Fraxinus americana L. var. juglandifolia (Lam.) Rehder
             Fraxinus americana L. var. microcarpa A.Gray
             Fraxinus biltmoreana Beadle
             Fraxinus curtissii Vasey
             Fraxinus juglandifolia Lam.
    Fraxinus nigra Marshall*+
        black ash
    Fraxinus pennsylvanica Marshall*+
        green ash, red ash
             Fraxinus campestris Britton
             Fraxinus darlingtonii Britton
             Fraxinus juglandifolia Lam. var. subintegerrima Vahl
             Fraxinus lanceolata Borkh.
             Fraxinus pennsylvanica Marshall var. austinii Fernald
             Fraxinus pennsylvanica Marshall var. lanceolata (Borkh.) Sarg.
             Fraxinus pennsylvanica Marshall var. pennsylvanica
             Fraxinus pennsylvanica Marshall var. subintegerrima (Vahl) Fernald
             Fraxinus smallii Britton
Family: Onagraceae
  Genus: Circaea
    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 leptophyllum Raf.*+
        American marsh willow-herb, bog willow-herb, fen willow-herb
             Epilobium densum Raf. var. nesophilum Fernald
             Epilobium molle Torr. var. sabulonense Fernald
             Epilobium nesophilum (Fernald) Fernald
             Epilobium nesophilum (Fernald) Fernald var. sabulonense Fernald
             Epilobium palustre L. var. gracile (Farw.) Dorn
             Epilobium palustre L. var. sabulonense (Fernald) B.Boivin
             Epilobium rosmarinifolium Pursh
             Epilobium treleaseanum H.Lév., pro parte
  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
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: Calopogon
    Calopogon tuberosus (L.) Britton, Sterns & Poggenb. var. tuberosus *+
        grass pink, tuberous grass pink
             Calopogon pulchellus (Salisb.) R.Br.
             Calopogon pulchellus (Salisb.) R.Br. var. latifolius (H.St.John) Fernald
             Calopogon tuberosus (L.) Britton, Sterns & Poggenb. var. latifolius (H.St.John) B.Boivin
             Cathea pulchella Salisb.
             Cathea tuberosa (L.) Morong
             Cymbidium pulchellum (Salisb.) Sw.
             Helleborine tuberosa (L.) Kuntze
             Limodorum barbatum Lam.
             Limodorum pulchellum Salisb.
             Limodorum tuberosum L.
             Limodorum tuberosum L. var. nanum Nieuwl.
  Genus: Cypripedium
    Cypripedium acaule Aiton*+
        moccasin-flower, pink lady's-slipper, pink moccasin-flower, small pink lady's-slipper
             Cypripedium acaule Aiton f. albiflorum E.L.Rand & Redfield
             Fissipes acaulis (Aiton) Small
  Genus: Galearis
    Galearis spectabilis (L.) Raf.*+
        showy orchis
             Galeorchis spectabilis (L.) Rydb.
             Orchis spectabilis L.
  Genus: Liparis
    Liparis loeselii (L.) Rich.*+
        fen orchid, green twayblade, Loesel's twayblade
             Leptorchis loeselii (L.) MacMill.
             Liparis correana (W.P.C.Barton) Spreng.
             Ophrys loeselii L.
  Genus: Spiranthes
    Spiranthes cernua (L.) Rich.*+
        nodding lady's-tresses
             Gyrostachys cernua (L.) Kuntze
             Ibidium cernuum (L.) House
             Ophrys cernua L.
             Spiranthes cernua (L.) Rich. var. incurva Jenn.
Family: Orobanchaceae
  Genus: Conopholis
    Conopholis americana (L.) Wallr.*+
        American squawroot
             Orobanche americana L.
  Genus: Epifagus
    Epifagus virginiana (L.) W.P.C.Barton*+
        beech-drops, cancer-root
             Leptamnium virginianum (L.) Raf.
             Orobanche virginiana L.
Family: Osmundaceae
  Genus: Osmunda
    Osmunda cinnamomea L.*+
        cinnamon fern
             Osmunda cinnamomea L. f. frondosa (Torr. & A.Gray) Britton
             Osmunda cinnamomea L. f. incisa (Huntington) Gilbert
             Osmunda cinnamomea L. var. cinnamomea
             Osmunda cinnamomea L. var. frondosa Torr. & A.Gray
             Osmunda cinnamomea L. var. glandulosa Waters
    Osmunda claytoniana L.*+
        interrupted fern
Family: Oxalidaceae
  Genus: Oxalis
    Oxalis dillenii Jacq.+
        Dillenius' oxalis, southern yellow wood-sorrel
             Oxalis corniculata L. var. dillenii (Jacq.) Trel.
             Oxalis dillenii Jacq. subsp. dillenii
             Oxalis dillenii Jacq. var. radicans Shinners
             Oxalis rupestris Raf.
             Oxalis stricta L., sensu Lourteig (1979) & Voss (1985)
             Xanthoxalis dillenii (Jacq.) Holub
    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: 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
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 major L.*+
        broad-leaved plantain, common plantain, plantain
             Plantago major L. var. scopulorum Fr. & Broberg
    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: Alopecurus
    Alopecurus aequalis Sobol.*+
        short-awned foxtail
             Alopecurus aequalis Sobol. var. aequalis
             Alopecurus aequalis Sobol. var. natans (Wahlenb.) Fernald
             Alopecurus aristulatus Michx.
             Alopecurus geniculatus L. var. aristulatus (Michx.) Torr.
  Genus: Andropogon
    Andropogon gerardii Vitman*+
        big blue-stem, turkey-foot
             Andropogon furcatus Muhl. ex Willd.
             Andropogon provincialis Lam.
  Genus: Avena
    Avena sativa L.*+
        oats
             Avena byzantina K.Koch
             Avena fatua L. subsp. sativa
             Avena fatua L. var. sativa (L.) Hausskn.
             Avena sativa L. var. orientalis (Schreb.) Alef.
  Genus: Beckmannia
    Beckmannia syzigachne (Steud.) Fernald*+
        American slough grass
             Beckmannia eruciformis auct. non (L.) Host
             Beckmannia eruciformis (L.) Host subsp. baicalensis
             Beckmannia eruciformis (L.) Host var. uniflora Scribn. ex A.Gray
             Beckmannia syzigachne (Steud.) Fernald subsp. baicalensis
             Beckmannia syzigachne (Steud.) Fernald var. uniflora (Scribn. ex A.Gray) B.Boivin
             Panicum syzigachne Steud.
  Genus: Bromus
    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 commutatus Schrad.*+
        European brome, hairy chess, meadow brome
             Bromus commutatus Schrad. var. apricorum Simonk.
    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
    Bromus kalmii A.Gray*+
        Arctic brome, ear-leaved brome, Kalm's brome, prairie brome
             Bromus ciliatus L. var. laeviglumis Scribn. ex Shear
             Bromopsis kalmii (A.Gray) Holub
             Bromus purgans L., nom. rejic.
             Bromus purgans L. var. laeviglumis (Scribn. ex Shear) Swallen
    Bromus pubescens Muhl. ex Willd.*+
        Canadian brome, hairy woodland brome
             Bromopsis pubescens (Muhl. ex Willd.) Holub
             Bromus purgans auct. mult. non L.
             Bromus purgans L. f. glabriflorus Wiegand
             Bromus purgans L. f. laevivaginatus Wiegand
    Bromus tectorum L.*+
        cheat grass, downy brome, downy chess, June grass
    Bromus tectorum L. var. tectorum +
        cheat grass, downy brome, downy chess, June grass
  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
    Calamagrostis stricta (Timm) Koeler var. stricta subsp. stricta+
        slim-stem reed grass, slim-stem small reed grass
             Calamagrostis neglecta Gaertn., B.Mey. & Scherb.
             Calamagrostis neglecta Gaertn., B.Mey. & Scherb. subsp. stricta
             Calamagrostis neglecta Gaertn., B.Mey. & Scherb. var. gracilis (Scribn.) Scribn.
             Calamagrostis neglecta Gaertn., B.Mey. & Scherb. var. micrantha (Kearney) 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: Dactylis
    Dactylis glomerata L.*+
        orchard grass
  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. implicatum*+
        mat panic grass
             Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. implicatum (Scribn.) Gould & C.A.Clark
             Dichanthelium meridionale (Ashe) Freckmann
             Panicum acuminatum Sw. var. implicatum (Scribn.) C.F.Reed
             Panicum albemarlense Ashe
             Panicum columbianum Scribn. var. oricola (Hitchc. & Chase) Fernald
             Panicum columbianum Scribn. var. thinium Hitchc. & Chase
             Panicum heterophyllum Bosc ex Nees var. thinium (Hitchc. & Chase) F.T.Hubb.
             Panicum implicatum Scribn.
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. implicatum (Scribn.) Fernald
             Panicum leucothrix Nash, sensu Gleason & Cronquist (1991)
             Panicum meridionale Ashe
             Panicum meridionale Ashe var. albemarlense (Ashe) Fernald
             Panicum oricola Hitchc. & Chase
    Dichanthelium latifolium (L.) Harvill*+
        broad-leaved panic grass
             Panicum latifolium L.
             Panicum macrocarpon Leconte ex Torr.
    Dichanthelium leibergii (Vasey) Freckmann*+
        Leiberg's panic grass, prairie panic grass
             Panicum leibergii (Vasey) Scribn.
             Panicum scoparium Lam. var. leibergii Vasey
             Panicum scribnerianum Nash var. leibergii (Vasey) Scribn.
  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
    Echinochloa muricata (P.Beauv.) Fernald var. muricata +
        barnyard grass, cockspur grass, rough barnyard grass
             Echinochloa crus-galli (L.) P.Beauv. f. longiseta (Trin.) Farw.
             Echinochloa muricata (P.Beauv.) Fernald var. ludoviciana Wiegand
             Echinochloa pungens (Poir.) Rydb.
             Echinochloa pungens (Poir.) Rydb. var. ludoviciana (Wiegand) Fernald & Griscom
    Echinochloa walteri (Pursh) A.Heller*+
        coast barnyard grass, salt-marsh cockspur grass, water-millet
             Echinochloa walteri (Pursh) A.Heller f. laevigata Wiegand
             Panicum walteri Pursh
  Genus: Elymus
    Elymus hystrix L. var. hystrix *+
        bottlebrush grass, eastern bottlebrush grass, glumeless wild-rye
             Asperella hystrix (L.) Humb.
             Hystrix hystrix (L.) Millsp.
             Hystrix patula Moench
    Elymus macgregorii R.E.Brooks & J.J.N.Campb.
        MacGregor's wild-rye
    Elymus trachycaulus (Link) Gould ex Shinners*+
        slender wheat grass
    Elymus trachycaulus (Link) Gould ex Shinners subsp. subsecundus+
        bearded wheat grass, slender wheat grass
             Agropyron caninum (L.) P.Beauv. var. unilaterale (Cassidy) C.L.Hitchc.
             Agropyron pauciflorum (Schwein.) Hitchc. ex Silvues var. glaucum (Pease & A.H.Moore) Taylor
             Agropyron subsecundum (Link) Hitchc.
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. ciliatum (Scribn. & J.G.Sm.) Malte
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. glaucum (Pease & A.H.Moore) Malte
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. unilaterale (Cassidy) Malte
             Elymus trachycaulus (Link) Gould ex Shinners subsp. glaucus
             Elymus trachycaulus (Link) Gould ex Shinners var. unilateralis (Cassidy) Beetle
             Triticum subsecundum Link
    Elymus villosus Muhl. ex Willd. var. villosus *+
        downy wild-rye, hairy wild-rye, silky wild-rye
             Terrellia villosa (Muhl. ex Willd.) Baum
    Elymus wiegandii Fernald+
        broad-leaved wild-rye, northern riverbank wild-rye, Wiegand's wild-rye
             Elymus canadensis L. subsp. wiegandii
             Elymus canadensis L. var. wiegandii (Fernald) Bowden
  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 frankii C.A.Mey. ex Steud.+
        sandbar love grass
             Eragrostis frankii C.A.Mey. ex Steud. var. brevipes Fassett
    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.
  Genus: Festuca
    Festuca pratensis Huds.*+
        meadow fescue, meadow rye grass, rye grass
             Festuca elatior L., pro parte
             Lolium pratense (Huds.) Darbysh.
    Festuca subverticillata (Pers.) E.B.Alexeev*+
        nodding fescue
             Festuca obtusa Biehler
  Genus: Glyceria
    Glyceria borealis (Nash) Batch.*+
        northern manna grass
             Panicularia borealis Nash
    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
    Glyceria striata (Lam.) Hitchc.*+
        fowl manna grass, fowl meadow grass
             Glyceria nervata (Willd.) Trin.
             Glyceria striata (Lam.) Hitchc. var. stricta (Scribn.) Fernald
             Glyceria striata (Lam.) Hitchc. var. striata
             Panicularia nervata (Willd.) Kuntze
             Panicularia nervata (Willd.) Kuntze var. parviglumis Scribn. & Merr.
             Poa nervata Willd.
  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: Lolium
    Lolium perenne L.*+
        English rye grass, perennial rye grass
    Lolium perenne L. subsp. multiflorum+
        Italian rye grass
             Lolium multiflorum Lam.
             Lolium multiflorum Lam. var. diminutum Mutel
             Lolium multiflorum Lam. var. muticum DC.
             Lolium multiflorum Lam. var. ramosum Guss. ex Arcang.
             Lolium perenne L. var. multiflorum (Lam.) Parn.
  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 mexicana (L.) Trin.*+
        leafy satin grass, Mexican muhly, wire-stem muhly
             Agrostis mexicana L.
             Muhlenbergia ambigua Torr.
             Muhlenbergia foliosa (Roem. & Schult.) Trin.
             Muhlenbergia foliosa (Roem. & Schult.) Trin. subsp. ambigua
             Muhlenbergia foliosa (Roem. & Schult.) Trin. subsp. setiglumis
             Muhlenbergia mexicana (L.) Trin. f. ambigua (Torr.) Fernald
             Muhlenbergia mexicana (L.) Trin. f. mexicana
             Muhlenbergia mexicana (L.) Trin. f. setiglumis (S.Watson) Fernald
             Muhlenbergia mexicana (L.) Trin. var. filiformis (Willd.) Scribn.
  Genus: Panicum
    Panicum capillare L. subsp. capillare*+
        common witch grass, old-witch grass, witch grass
             Panicum barbipulvinatum Nash
             Panicum capillare L. subsp. barbipulvinatum
             Panicum capillare L. var. barbipulvinatum (Nash) McGregor
             Panicum capillare L. var. brevifolium Vasey ex Rydb. & Shear
             Panicum capillare L. var. occidentale Rydb.
    Panicum dichotomiflorum Michx. subsp. dichotomiflorum*+
        fall panic grass, fall panicum, knee grass
             Panicum dichotomiflorum Michx. var. dichotomiflorum
             Panicum dichotomiflorum Michx. var. geniculatum (A.W.Wood) Fernald
             Panicum dichotomiflorum Michx. var. imperiorum Fernald
    Panicum miliaceum L.*+
        broom-corn millet, hog millet, panic millet, proso millet, wild proso millet
    Panicum miliaceum L. subsp. ruderale+
        broom-corn 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: Phragmites
    Phragmites australis (Cav.) Trin. ex Steud.*+
        common reed, common reed grass
             Phragmites australis (Cav.) Trin. ex Steud. var. berlandieri (E.Fourn.) C.F.Reed
             Phragmites communis Trin.
             Phragmites communis Trin. subsp. berlandieri
             Phragmites communis Trin. var. berlandieri (E.Fourn.) Fernald
             Phragmites phragmites (L.) H.Karst.
  Genus: Poa
    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: Puccinellia
    Puccinellia distans (Jacq.) Parl.+
        European alkali grass, weeping alkali grass
  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 verticillata (L.) P.Beauv.+
        bristly foxtail, hooked bristle grass
             Chaetochloa verticillata (L.) Scribn.
             Panicum verticillatum L.
             Setaria carnei Hitchc.
             Setaria decipiens Schimp. ex Nyman
             Setaria verticillata (L.) P.Beauv. var. verticillata
    Setaria viridis (L.) P.Beauv.*+
        green bristle grass, green foxtail
    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
  Genus: Sporobolus
    Sporobolus heterolepis (A.Gray) A.Gray*+
        northern drop-seed, prairie drop-seed
             Vilfa heterolepis A.Gray
  Genus: Zizania
    Zizania aquatica L.*+
        annual wild rice, Indian rice, southern wild rice
             Zizania aquatica L. var. aquatica
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
  Genus: Polemonium
    Polemonium reptans L. var. reptans *+
        Greek-valerian, spreading Jacob's-ladder
Family: Polygonaceae
  Genus: Polygonum
    Polygonum achoreum S.F.Blake*+
        beak-seeded knotweed, leathery knotweed
             Polygonum erectum L. subsp. achoreum
    Polygonum amphibium L.*+
        water heart's-ease, water smartweed
    Polygonum amphibium L. var. emersum Michx.*+
        long-root smartweed, water heart's-ease, water smartweed
             Persicaria amphibia (L.) S.F.Gray, pro parte
             Persicaria amphibia (L.) S.F.Gray var. emersa (Michx.) Hickman
             Persicaria coccinea (Muhl.) Greene
             Persicaria muhlenbergii (S.Watson) Small
             Persicaria pratincola Greene
             Polygonum amphibium L. f. terrestre (Willd.) S.F.Blake
             Polygonum amphibium L. var. coccineum (Muhl. ex Willd.) Farw.
             Polygonum amphibium L. var. terrestre Willd.
             Polygonum coccineum Muhl. ex Willd.
             Polygonum coccineum Muhl. ex Willd. f. natans (Wiegand) Stanford
             Polygonum coccineum Muhl. ex Willd. f. terrestre (Willd.) Stanford
             Polygonum coccineum Muhl. ex Willd. var. pratincola (Greene) Stanford
             Polygonum coccineum Muhl. ex Willd. var. terrestre Willd.
             Polygonum muhlenbergii S.Watson
             Polygonum muhlenbergii S.Watson f. natans Wiegand
             Polygonum muhlenbergii S.Watson var. terrestre (Willd.) Trel.
             Polygonum rigidulum E.Sheld.
             Polygonum terrestre (Willd.) Britton, Sterns & Poggenb.
    Polygonum amphibium L. var. stipulaceum N.Coleman*+
        water heart's-ease, water smartweed
             Persicaria amphibia (L.) S.F.Gray var. stipulacea (N.Coleman) Hara
             Persicaria mesochora Greene
             Persicaria nebraskensis Greene
             Polygonum amphibium L. f. hirtuosum Farw.
             Polygonum amphibium L. subsp. laevimarginatum
             Polygonum amphibium L. var. hartwrightii (A.Gray) Bissell
             Polygonum amphibium L. f. fluitans (Eaton) Fernald var. stipulaceum N.Coleman
             Polygonum amphibium L. f. hirtuosum (Farw.) Fernald var. stipulaceum N.Coleman
             Polygonum amphibium L. f. simile Fernald var. stipulaceum N.Coleman
             Polygonum coccineum Muhl. ex Willd. var. rigidulum (E.Sheld.) Stanford
             Polygonum fluitans Eaton
             Polygonum hartwrightii A.Gray
             Polygonum inundatum Raf.
             Polygonum natans Eaton
             Polygonum natans Eaton f. genuinum Stanford
             Polygonum natans Eaton f. hartwrightii (A.Gray) Stanford
             Polygonum natans Eaton f. natans
    Polygonum arenastrum Boreau*+
        door-yard knotweed, oval-leaved knotweed
             Polygonum aequale Lindm.
             Polygonum aviculare L. var. arenastrum (Boreau) Rouy
             Polygonum montereyense Brenckle
    Polygonum aviculare L.*+
        common knotweed, prostrate knotweed
             Polygonum aviculare L. var. vegetum Ledeb.
             Polygonum heterophyllum Lindm.
             Polygonum monspeliense Pers.
    Polygonum buxiforme Small+
        box knotweed, boxwood knotweed
             Polygonum aviculare L. var. crassifolium Lange
             Polygonum aviculare L. var. littorale (Link) Mert.
             Polygonum littorale Link
    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 hydropiper L.*+
        marsh-pepper knotweed, water-pepper
             Persicaria hydropiper (L.) Opiz
             Polygonum hydropiper L. var. projectum Stanford
    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 orientale L.*+
        kiss-me-over-the-garden-gate, prince's-feather
             Persicaria orientale (L.) Spach
             Persicaria orientalis (L.) Spach
             Polygonum spaethii Dammer
    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 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 scandens L. var. cristatum (Engelm. & A.Gray) Gleason+
        climbing false buckwheat
             Bilderdykia cristata (Engelm. & A.Gray) Greene
             Bilderdykia scandens (L.) Greene var. cristata (Engelm. & A.Gray) C.F.Reed
             Polygonum cristatum Engelm. & A.Gray
             Reynoutria scandens (L.) Shinners var. cristata (Engelm. & A.Gray) Shinners
             Tiniaria cristata (Engelm. & A.Gray) Small
  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 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
    Rumex orbiculatus A.Gray*+
        great water dock
             Rumex britannica of Amer. authors, not L.
             Rumex orbiculatus A.Gray var. borealis Rech.f.
             Rumex orbiculatus A.Gray var. orbiculatus
    Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L.Hitchc.+
        willow dock
             Rumex mexicanus Meisn.
             Rumex mexicanus Meisn. var. angustifolius (Meisn.) B.Boivin
             Rumex mexicanus Meisn. var. subarcticus (Lepage) B.Boivin
             Rumex mexicanus Meisn. var. triangulivalvis (Danser) Lepage
             Rumex quadrangulivalvis (Danser) Rech.f.
             Rumex salicifolius Weinm. subsp. triangulivalvis
             Rumex salicifolius Weinm. var. angustifolius Meisn.
             Rumex salicifolius Weinm. var. triangulivalvis (Danser) Hickman
             Rumex subarcticus Lepage
             Rumex triangulivalvis (Danser) Rech.f.
             Rumex triangulivalvis (Danser) Rech.f. var. oreolapathum Rech.f.
    Rumex verticillatus L.*+
        swamp dock, water dock
             Rumex fascicularis Small
             Rumex floridanus Meisn.
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: Pontederiaceae
  Genus: Heteranthera
    Heteranthera dubia (Jacq.) MacMill.*+
        water star-grass
             Commelina dubia Jacq.
             Heteranthera graminea (Michx.) Vahl
             Heteranthera liebmannii (Buchenau) Shinners
             Schollera graminea (Michx.) Raf.
             Zosterella dubia (Jacq.) Small
             Zosterella longituba Alexander
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
Family: Potamogetonaceae
  Genus: Potamogeton
    Potamogeton crispus L.*+
        curled pondweed, curly pondweed
    Potamogeton foliosus Raf. subsp. foliosus*+
        leafy pondweed
             Potamogeton curtissii Morong
             Potamogeton foliosus Raf. var. foliosus
             Potamogeton foliosus Raf. var. genuinus Fernald
             Potamogeton foliosus Raf. var. macellus Fernald
    Potamogeton friesii Rupr.*+
        Fries's pondweed
    Potamogeton gramineus L.*+
        grass-leaved pondweed, variable-leaved pondweed
             Potamogeton gramineus L. var. graminifolius Fr.
             Potamogeton gramineus L. var. maximus Morong ex A.Benn.
             Potamogeton gramineus L. var. myriophyllus J.W.Robbins
             Potamogeton gramineus L. var. typicus Ogden
             Potamogeton heterophyllus auct. non Schreb.
    Potamogeton praelongus Wulfen*+
        white-stemmed pondweed
             Potamogeton praelongus Wulfen var. angustifolius Graebn.
    Potamogeton pusillus L.+
        slender pondweed, small pondweed
             Potamogeton lateralis auct. pro parte, non Morong
    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 filiformis (Pers.) Börner+
        fine-leaved pondweed, thread-leaf pondweed, thread-leaved pondweed
    Stuckenia pectinata (L.) Börner*+
        comb pondweed, sago pondweed
             Coleogeton pectinatus (L.) Les & R.R.Haynes
             Potamogeton pectinatus L.
Family: Primulaceae
  Genus: Dodecatheon
    Dodecatheon meadia L. subsp. meadia*+
        eastern shooting-star, pride-of-Ohio
             Dodecatheon hugeri Small
             Dodecatheon meadia L. f. sedens Fassett
             Dodecatheon meadia L. var. genuinum Fassett
             Dodecatheon meadia L. var. meadia
             Dodecatheon meadia L. var. obesum Fassett
             Dodecatheon meadia L. var. stanfieldii (Small) Fassett
             Dodecatheon pauciflorum Greene
             Dodecatheon pulchellum Raf. subsp. pauciflorum
             Dodecatheon stanfieldii Small
  Genus: Lysimachia
    Lysimachia ciliata L.*+
        fringed loosestrife
             Steironema ciliatum (L.) Baudo
             Steironema pumilum Greene
    Lysimachia nummularia L.*+
        creeping-Charlie, creeping-Jennie, moneywort
    Lysimachia quadriflora Sims*+
        narrow-leaved loosestrife, smooth loosestrife
             Lysimachia longifolia Pursh
             Steironema quadriflorum (Sims) Hitchc.
    Lysimachia thyrsiflora L.*+
        swamp loosestrife, tufted loosestrife
             Naumburgia thyrsiflora (L.) Rchb.
Family: Pteridaceae
  Genus: Adiantum
    Adiantum pedatum L.*+
        maidenhair fern, northern maidenhair fern
  Genus: Pellaea
    Pellaea glabella Mett. ex Kuhn subsp. glabella*+
        dwarf cliff brake, smooth cliff brake
             Pellaea atropurpurea (L.) Link var. bushii Mack.
             Pellaea glabella Mett. ex Kuhn var. glabella
Family: Ranunculaceae
  Genus: Actaea
    Actaea pachypoda Elliott*+
        doll's-eyes, white baneberry
             Actaea alba auct. non (L.) Mill.
             Actaea pachypoda Elliott f. microcarpa (DC.) Fassett