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Wisflora - Vascular Plant Species

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WISFLORA: Vascular Plant Species

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County: Waupaca

Family: Aceraceae
  Genus: Acer
    Acer negundo L.
        ash-leaved maple, box elder
    Acer negundo L. var. violaceum (Kirchn.) H.Jaeger+
        box elder
             Negundo aceroides (L.) Moench subsp. violaceum
    Acer nigrum F.Michx.*+
        black maple
             Acer nigrum F.Michx. var. palmeri Sarg.
             Acer saccharum Marshall subsp. nigrum
             Acer saccharum Marshall var. nigrum (F.Michx.) Britton
             Acer saccharum Marshall var. viride (Schmidt) E.Murray
             Saccharodendron nigrum (F.Michx.) Small
    Acer rubrum L. var. rubrum *+
        red maple
             Acer rubrum L. f. tomentosum (Desf.) Dans.
             Acer rubrum L. var. tomentosum Tausch
             Acer stenocarpum Britton
             Rufacer rubrum (L.) Small
    Acer saccharinum L.*+
        silver maple, soft maple
             Acer dasycarpum Ehrh.
             Acer saccharinum L. f. ahlesii A.Murray
             Acer saccharinum L. var. laciniatum Pax
             Acer saccharinum L. var. wieri Rehder
             Argentacer saccharinum (L.) Small
    Acer 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 cristata Engelm.*+
        crested arrowhead
             Sagittaria graminea Michx. var. cristata (Engelm.) Bogin
    Sagittaria graminea Michx. subsp. graminea*+
        grass-leaved arrowhead, grass-leaved sagittaria
             Sagittaria cycloptera (J.G.Sm.) C.Mohr
             Sagittaria eatonii J.G.Sm.
             Sagittaria graminea Michx. var. graminea
             Sagittaria macrocarpa J.G.Sm.
    Sagittaria latifolia Willd.*+
        broad-leaved arrowhead, common arrowhead, duck-potato, wapato
             Sagittaria chinensis Pursh
             Sagittaria esculenta T.J.Howell
             Sagittaria latifolia Willd. f. gracilis (Pursh) B.L.Rob.
             Sagittaria latifolia Willd. f. hastata (Pursh) B.L.Rob.
             Sagittaria latifolia Willd. var. latifolia
             Sagittaria latifolia Willd. var. obtusa (Muhl. ex Willd.) Wiegand
             Sagittaria latifolia Willd. var. pubescens (Muhl. ex Nutt.) J.G.Sm.
             Sagittaria obtusa Muhl. ex Willd., non Thunb.
             Sagittaria ornithorhyncha Small
             Sagittaria planipes Fernald
             Sagittaria variabilis Engelm. var. obtusa (Muhl. ex Willd.) Engelm.
             Sagittaria viscosa C.Mohr, pro parte
    Sagittaria rigida Pursh*+
        sessile-fruited arrowhead, stiff arrowhead
             Sagittaria heterophylla Pursh
             Sagittaria heterophylla Pursh f. elliptica (Engelm.) S.F.Blake
             Sagittaria heterophylla Pursh f. fluitans (Engelm.) S.F.Blake
             Sagittaria heterophylla Pursh f. rigida (Pursh) S.F.Blake
             Sagittaria rigida Pursh f. elliptica (Engelm.) Fernald
             Sagittaria rigida Pursh f. fluitans (Engelm.) Fernald
Family: Amaranthaceae
  Genus: Amaranthus
    Amaranthus albus L.*+
        prostrate pigweed, tumble pigweed, tumbleweed, tumbleweed amaranth, white amaranth
             Amaranthus albus L. var. pubescens (Uline & W.L.Bray) Fernald
             Amaranthus graecizans auct. non L.
             Amaranthus graecizans L. var. pubescens Uline & W.L.Bray
             Amaranthus pubescens (Uline & W.L.Bray) Rydb.
    Amaranthus 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 hirta (L.) Sudw.*+
        staghorn sumac, velvet sumac
             Datisca hirta L.
             Rhus typhina L.
             Rhus typhina L. f. dissecta Rehder
             Rhus typhina L. var. laciniata A.W.Wood
  Genus: Toxicodendron
    Toxicodendron radicans (L.) Kuntze subsp. negundo*+
        common eastern poison-ivy, poison-ivy
             Toxicodendron negundo Greene
             Toxicodendron radicans (L.) Kuntze var. negundo (Greene) Reveal
    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
    Angelica atropurpurea L. var. occidentalis Fassett+
        purple-stem angelica, western great 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: Hydrocotyle
    Hydrocotyle americana L.*+
        American marsh pennywort, marsh pennywort
  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: Pimpinella
    Pimpinella saxifraga L.*+
        solid-stem burnet-saxifrage
  Genus: Sanicula
    Sanicula marilandica L.*+
        black snakeroot, Maryland sanicle
             Sanicula marilandica L. var. petiolulata Fernald
  Genus: Torilis
    Torilis japonica (Houtt.) DC.*+
        erect hedge-parsley, Japanese hedge-parsley
             Torilis anthriscus C.C.Gmel. non Gaertn.
             Torilis rubella Moench
  Genus: Zizia
    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 sibiricum Jacq.*+
        clasping dogbane, Indian hemp
             Apocynum cannabinum L. var. hypericifolium (Aiton) A.Gray
             Apocynum hypericifolium Aiton
             Apocynum sibiricum Jacq. var. cordigerum (Greene) Fernald
             Apocynum sibiricum Jacq. var. farwellii (Greene) Fernald
             Apocynum sibiricum Jacq. var. salignum (Greene) Fernald
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: Calla
    Calla palustris L.*+
        water-arum, wild calla
Family: Araliaceae
  Genus: Aralia
    Aralia hispida Vent.*+
        bristly sarsaparilla
    Aralia nudicaulis L.*+
        wild sarsaparilla
    Aralia racemosa L.*+
        American spikenard, life-of-man
             Aralia racemosa L. subsp. racemosa
  Genus: Panax
    Panax trifolius L.*+
        dwarf ginseng, groundnut
Family: Aristolochiaceae
  Genus: Asarum
    Asarum canadense L.*+
        Canadian wild-ginger, wild-ginger
             Asarum acuminatum (Ashe) E.P.Bicknell
             Asarum canadense L. var. acuminatum Ashe
             Asarum canadense L. f. prattii Fassett var. acuminatum Ashe
             Asarum canadense L. var. ambiguum (E.P.Bicknell) Farw.
             Asarum canadense L. var. canadense
             Asarum canadense L. var. reflexum (E.P.Bicknell) B.L.Rob.
             Asarum reflexum E.P.Bicknell
             Asarum reflexum E.P.Bicknell var. ambiguum E.P.Bicknell
             Asarum rubrocinctum Peattie
Family: Asclepiadaceae
  Genus: Asclepias
    Asclepias amplexicaulis Sm.*+
        clasping milkweed, sand milkweed
    Asclepias exaltata L.*+
        poke milkweed, tall milkweed
             Asclepias bicknellii Vail
             Asclepias phytolaccoides Pursh
    Asclepias incarnata L. subsp. incarnata*+
        swamp milkweed
             Asclepias incarnata L. var. incarnata
    Asclepias ovalifolia Decne.*+
        dwarf milkweed, oval milkweed, oval-leaved milkweed
    Asclepias syriaca L.*+
        common milkweed, silkweed
             Asclepias intermedia Vail
             Asclepias kansana Vail
             Asclepias syriaca L. var. kansana (Vail) E.J.Palmer & Steyerm.
    Asclepias tuberosa L. subsp. interior*+
        butterfly milkweed, butterfly-weed, orange milkweed
             Asclepias tuberosa L. subsp. terminalis
             Asclepias tuberosa L. var. interior (Woodson) Shinners
    Asclepias verticillata L.*+
        whorled milkweed
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.
  Genus: Antennaria
    Antennaria howellii Greene subsp. neodioica+
        field pussy-toes, Howell's pussy-toes
             Antennaria neglecta Greene var. attenuata (Fernald) Cronquist
             Antennaria neglecta Greene var. neodioica (Greene) Cronquist
             Antennaria neodioica Greene
             Antennaria neodioica Greene subsp. neodioica
             Antennaria neodioica Greene var. attenuata Fernald
             Antennaria neodioica Greene var. chlorophylla Fernald
             Antennaria neodioica Greene var. grandis Fernald
             Antennaria neodioica Greene var. interjecta Fernald
             Antennaria neodioica Greene var. typica Fernald
             Antennaria rhodantha Fernald
             Antennaria rupicola Fernald
             Antennaria russellii B.Boivin
    Antennaria howellii Greene subsp. petaloidea+
        Howell's pussy-toes, small pussy-toes
             Antennaria appendiculata Fernald
             Antennaria concolor Piper
             Antennaria neglecta Greene var. petaloidea (Fernald) Cronquist
             Antennaria neglecta Greene var. subcorymbosa Fernald
             Antennaria neodioica Greene subsp. petaloidea
             Antennaria neodioica Greene var. petaloidea Fernald
             Antennaria petaloidea Fernald
             Antennaria petaloidea (Fernald) Fernald var. noveboracensis Fernald
             Antennaria petaloidea (Fernald) Fernald var. scariosa Fernald
             Antennaria petaloidea (Fernald) Fernald var. subcorymbosa (Fernald) Fernald
             Antennaria stenolepis Greene
    Antennaria neglecta Greene*+
        cat's-foot, field pussy-toes
             Antennaria angustiarum Lunell
             Antennaria athabascensis Greene
             Antennaria campestris Rydb.
             Antennaria campestris Rydb. var. athabascensis (Greene) B.Boivin
             Antennaria chelonica Lunell
             Antennaria erosa Greene
             Antennaria howellii Greene var. athabascensis (Greene) B.Boivin
             Antennaria howellii Greene var. campestris (Rydb.) B.Boivin
             Antennaria longifolia Greene
             Antennaria lunellii Greene
             Antennaria nebraskensis Greene
             Antennaria neglecta Greene var. athabascensis (Greene) Roy L.Taylor & MacBryde
             Antennaria neglecta Greene var. campestris (Rydb.) Steyerm.
             Antennaria neglecta Greene var. neglecta
             Antennaria parvula Greene
             Antennaria wilsonii Greene
    Antennaria parlinii Fernald subsp. fallax+
        Parlin's pussy-toes, plantain pussy-toes
             Antennaria ambigens (Greene) Fernald
             Antennaria ampla Bush
             Antennaria arkansana Greene
             Antennaria arnoglossa Greene var. ambigens Greene
             Antennaria bifrons Greene
             Antennaria brainerdii Greene
             Antennaria calophylla Greene
             Antennaria fallax Greene
             Antennaria fallax Greene var. calophylla (Greene) Fernald
             Antennaria farwellii Greene
             Antennaria greenei Bush
             Antennaria mesochora Greene
             Antennaria munda Fernald
             Antennaria obovata E.E.Nelson
             Antennaria occidentalis Greene
             Antennaria parlinii Fernald var. ambigens (Greene) Fernald
             Antennaria parlinii Fernald var. farwellii (Greene) B.Boivin
             Antennaria plantaginifolia (L.) Richardson var. ambigens (Greene) Cronquist
             Antennaria umbellata Greene
    Antennaria parlinii Fernald subsp. parlinii+
        Parlin's pussy-toes, plantain pussy-toes
             Antennaria arnoglossa Greene
             Antennaria parlinii Fernald var. arnoglossa (Greene) Fernald
             Antennaria plantaginifolia (L.) Richardson var. arnoglossa (Greene) Cronquist
             Antennaria plantaginifolia (L.) Richardson var. parlinii (Fernald) Cronquist
  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
  Genus: Aster
    Aster borealis (Torr. & A.Gray) Prov. var. X A. lanceolatus Willd. var. simplex (Willd.) A.G.Jones+
             Aster borealis (Torr. & A.Gray) Prov. X A. simplex Willd.
    Aster ciliolatus Lindl.*+
        Lindley's aster, northern heart-leaved aster
             Aster ciliolatus Lindl. var. ciliolatus
             Aster lindleyanus Torr. & A.Gray
             Aster saundersii E.S.Burgess
             Symphyotrichum ciliolatum (Lindl.) A.Löve & D.Löve
    Aster cordifolius L.*+
        common blue heart-leaved aster, common blue wood aster
             Aster cordifolius L. subsp. cordifolius
             Aster cordifolius L. var. cordifolius
             Aster cordifolius L. var. moratus (Shinners) Shinners
             Aster finkii Rydb. var. moratus Shinners
             Symphyotrichum cordifolium (L.) G.L.Nesom
    Aster cordifolius L. X A. drummondii Lindl.+
    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 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 lanceolatus Willd. var. simplex (Willd.) A.G.Jones X A. praealtus Poir. var. coerulescens (DC.) A.G.Jones+
    Aster lanceolatus Willd. X A. lateriflorus (L.) Britton+
             Aster lateriflorus (L.) Britton X A. lanceolatus Willd.
    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 macrophyllus L.*+
        big-leaved aster, large-leaved aster
             Aster ianthinus E.S.Burgess
             Aster macrophyllus L. f. eglandulosus Shinners
             Aster macrophyllus L. var. excelsior E.S.Burgess
             Aster macrophyllus L. var. ianthinus (E.S.Burgess) Fernald
             Aster macrophyllus L. var. macrophyllus
             Aster macrophyllus L. var. pinguifolius E.S.Burgess
             Aster macrophyllus L. var. sejunctus E.S.Burgess
             Aster macrophyllus L. var. velutinus E.S.Burgess
             Aster riciniatus E.S.Burgess
             Aster roscidus E.S.Burgess
             Aster violaris E.S.Burgess
             Eurbia macrophylla (L.) Cass.
    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 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 umbellatus Mill. var. umbellatus +
        flat-top aster, parasol aster, tall flat-topped white aster
             Doellingeria umbellata (Mill.) Nees
             Doellingeria umbellata (Mill.) Nees var. umbellata
    Aster X finkii Rydb. (pro sp.) X +
             Aster cordifolius L. X A. shortii Lindl.
             Aster finkii Rydb.
             Symphyotrichum X finkii (Rydb.) G.L.Nesom 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 comosus (A.Gray) Wiegand*+
        straw-stem beggar-ticks, swamp marigold, swamp tickseed
             Bidens acutus (Wiegand) Britton
             Bidens comosus (A.Gray) Wiegand var. acutus Wiegand
             Bidens tripartitus L., sensu Kartesz (1994)
    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 discoideus (Torr. & A.Gray) Britton*+
        few-bracted beggar-ticks, swamp beggar-ticks
             Coreopsis discoidea Torr. & 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: Boltonia
    Boltonia asteroides (L.) L'Hér. var. recognita (Fernald & Griscom) Cronquist*+
        false aster, white doll's-daisy
             Boltonia latisquama A.Gray var. microcephala Fernald & Griscom
             Boltonia latisquama A.Gray var. occidentalis A.Gray
             Boltonia latisquama A.Gray var. recognita Fernald & Griscom
             Boltonia recognita (Fernald & Griscom) G.N.Jones
  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 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: Crepis
    Crepis tectorum L.*+
        hawk's-beard, narrow-leaved hawk's-beard
  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 pulchellus Michx. var. pulchellus *+
        Robin's-plantain
             Erigeron bellidifolius Muhl. ex Willd.
             Erigeron pulchellus Michx. var. typicus Cronquist
    Erigeron strigosus Muhl. ex Willd. var. septentrionalis (Fernald & Wiegand) Fernald+
        daisy fleabane, prairie fleabane
             Erigeron ramosus (Walter) Britton, Sterns & Poggenb. var. septentrionalis Fernald & Wiegand
             Erigeron strigosus Muhl. ex Willd. subsp. septentrionalis
             Stenactis annua (L.) Nees subsp. septentrionalis
             Stenactis septentrionalis (Fernald & Wiegand) Holub
    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 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: Gnaphalium
    Gnaphalium obtusifolium L. var. obtusifolium *+
        cat's-foot, fragrant cudweed, old-field-balsam, old-field cudweed, rabbit-tobacco
             Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt
             Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt subsp. obtusifolium
  Genus: Grindelia
    Grindelia squarrosa (Pursh) Dunal var. squarrosa +
        curly-cup gum-weed, gum-plant, gum-weed
  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.
    Helenium flexuosum Raf.*+
        purple-head sneezeweed, southern sneezeweed
             Helenium floridanum Fernald
             Helenium godfreyi Fernald
             Helenium nudiflorum Nutt.
             Helenium polyphyllum Small
  Genus: Helianthus
    Helianthus decapetalus L.+
        forest sunflower, pale sunflower, thin-leaved sunflower
             Helianthus scrophulariifolius Britton
             Helianthus tracheliifolius Mill.
    Helianthus giganteus L.*+
        giant sunflower, swamp sunflower, tall sunflower
             Helianthus alienus E.Watson
             Helianthus borealis E.Watson
             Helianthus exasperatus E.Watson
             Helianthus giganteus L. subsp. alienus
             Helianthus giganteus L. var. subtuberosus Britton
             Helianthus membranaceus E.Watson
             Helianthus nuttallii Torr. & A.Gray var. subtuberosus (Britton) B.Boivin
             Helianthus subtuberosus (Britton) Britton
             Helianthus validus E.Watson
    Helianthus occidentalis Riddell subsp. occidentalis*+
        few-leaved sunflower, naked-stemmed sunflower, western sunflower
             Helianthus dowellianus M.A.Curtis
             Helianthus occidentalis Riddell var. dowellianus (M.A.Curtis) Torr. & A.Gray
             Helianthus occidentalis Riddell var. occidentalis
    Helianthus strumosus L.*+
        pale-leaved woodland sunflower, rough-leaved sunflower
             Helianthus montanus E.Watson
             Helianthus saxicola Small
  Genus: Heliopsis
    Heliopsis helianthoides (L.) Sweet var. helianthoides +
        false sunflower, ox-eye, smooth ox-eye, sunflower-everlasting
             Buphthalmum helianthoides L.
             Heliopsis helianthoides (L.) Sweet subsp. helianthoides
  Genus: Hieracium
    Hieracium aurantiacum L.*+
        devil's-paintbrush, grim-the-collier, orange hawkweed, red daisy
    Hieracium kalmii L.*+
        Canada hawkweed, Kalm's hawkweed
             Hieracium canadense Michx.
             Hieracium canadense Michx. var. canadense
             Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
             Hieracium columbianum Rydb.
             Hieracium kalmii L. var. fasciculatum (Pursh) Lepage
             Hieracium kalmii L. var. kalmii
             Hieracium kalmii L. var. subintegrum (Lepage) Lepage
             Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage
             Hieracium umbellatum L. var. canadense (Michx.) Breitung
             Hieracium umbellatum L. var. scabriusculum Farw.
    Hieracium piloselloides Vill.*+
        glaucous king-devil, tall hawkweed
             Hieracium florentinum All.
  Genus: Hypochaeris
    Hypochaeris radicata L.*+
        false dandelion, hairy cat's-ear, spotted cat's-ear
  Genus: Krigia
    Krigia biflora (Walter) S.F.Blake subsp. glandulifera+
        false-dandelion, orange dwarf-dandelion
             Krigia biflora (Walter) S.F.Blake f. glandulifera Fernald
  Genus: Kuhnia
    Kuhnia eupatorioides L. var. corymbulosa Torr. & A.Gray*+
        false boneset
             Brickellia eupatorioides (L.) Shinners var. corymbulosa (Torr. & A.Gray) Shinners
             Kuhnia hitchcockii A.Nelson
  Genus: Lactuca
    Lactuca biennis (Moench) Fernald*+
        tall blue lettuce, woodland lettuce
             Lactuca biennis (Moench) Fernald f. aurea (Jenn.) Fernald
             Lactuca biennis (Moench) Fernald f. integrifolia (Torr. & A.Gray) Fernald
             Lactuca spicata auct. non (Lam.) Hitchc.
             Lactuca spicata (Lam.) Hitchc. var. integrifolia (Torr. & A.Gray) Britton
             Mulgedium spicatum auct. non (Lam.) Small
             Mulgedium spicatum (Lam.) Small var. integrifolium (Torr. & A.Gray) Small
             Sonchus biennis Moench
    Lactuca canadensis L.*+
        Canada lettuce, tall lettuce, tall wild lettuce, wild lettuce
             Lactuca canadensis L. var. canadensis
             Lactuca canadensis L. var. integrifolia (Bigelow) Torr. & A.Gray
             Lactuca canadensis L. var. latifolia Kuntze
             Lactuca canadensis L. f. exauriculata Wiegand var. latifolia Kuntze
             Lactuca canadensis L. var. longifolia (Michx.) Farw.
             Lactuca canadensis L. f. angustipes (Wiegand) Farw. var. longifolia (Michx.) Farw.
             Lactuca canadensis L. var. obovata Wiegand
             Lactuca canadensis L. var. spinulosa Jenn.
             Lactuca canadensis L. var. typica Wiegand
             Lactuca canadensis L. f. angustipes Wiegand var. typica Wiegand
             Lactuca sagittifolia Elliott
  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.
  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: Rudbeckia
    Rudbeckia hirta L. var. pulcherrima Farw.*+
        black-eyed Susan
             Rudbeckia bicolor Nutt.
             Rudbeckia hirta L. var. corymbifera Fernald
             Rudbeckia hirta L. var. lanceolata (Bisch.) Core
             Rudbeckia hirta L. var. sericea (T.V.Moore) Fernald
             Rudbeckia hirta L. var. serotina (Nutt.) Core
             Rudbeckia lanceolata Bisch.
             Rudbeckia longipes T.V.Moore
             Rudbeckia serotina Nutt.
             Rudbeckia sericea T.V.Moore
             Rudbeckia serotina Nutt. var. corymbifera (Fernald) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. lanceolata (Bisch.) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. sericea (T.V.Moore) Fernald & B.G.Schub.
    Rudbeckia laciniata L. var. laciniata +
        cut-leaved coneflower, wild golden-glow
  Genus: 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 hispida Muhl. ex Willd. var. hispida *+
        hairy goldenrod
             Solidago bicolor L. var. concolor Torr. & A.Gray
             Solidago bicolor L. var. ovalis Farw.
             Solidago bicolor L. var. tonsa (Fernald) B.Boivin
             Solidago hispida Muhl. ex Willd. var. tonsa Fernald
    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 missouriensis Nutt. var. fasciculata Holz.+
        Missouri goldenrod
             Solidago glaberrima M.Martens
             Solidago glaberrima M.Martens var. moritura (Steele) E.J.Palmer & Steyerm.
             Solidago missouriensis Nutt. var. glaberrima (M.Martens) Rosend. & Cronquist
             Solidago moritura Steele
    Solidago nemoralis Aiton*+
        dyer's-weed goldenrod, gray goldenrod, old-field goldenrod
    Solidago nemoralis Aiton subsp. nemoralis+
        dyer's-weed goldenrod, field goldenrod, gray goldenrod, old-field goldenrod
             Solidago nemoralis Aiton subsp. haleana
             Solidago nemoralis Aiton var. haleana Fernald
             Solidago nemoralis Aiton var. nemoralis
             Solidago nemoralis Aiton var. typica Rosend. & Cronquist
    Solidago patula Muhl. ex Willd. var. patula *+
        rough-leaved goldenrod, round-leaved goldenrod, swamp goldenrod
    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.*+
        showy goldenrod
    Solidago speciosa Nutt. var. rigidiuscula Torr. & A.Gray+
        showy goldenrod
             Solidago rigidiuscula (Torr. & A.Gray) Porter
             Solidago speciosa Nutt. var. angustata Torr. & A.Gray
    Solidago 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. var. glabrescens Günther, Grab. & Wimm.*+
        marsh sow-thistle
             Sonchus arvensis L. subsp. uliginosus
             Sonchus uliginosus M.Bieb.
  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: Vernonia
    Vernonia fasciculata Michx. subsp. fasciculata*+
        common ironweed, prairie ironweed, smooth ironweed
             Vernonia fasciculata Michx. var. fasciculata
  Genus: Xanthium
    Xanthium strumarium L.*+
        common cocklebur, rough cocklebur
Family: Balsaminaceae
  Genus: Impatiens
    Impatiens capensis Meerb.*+
        orange jewelweed, orange touch-me-not, spotted touch-me-not
             Impatiens biflora Walter
             Impatiens capensis Meerb. f. immaculata (Weath.) Fernald & B.G.Schub.
             Impatiens fulva Nutt.
             Impatiens noli-tangere L. subsp. biflora
             Impatiens nortonii Rydb.
    Impatiens pallida Nutt.*+
        pale touch-me-not, yellow jewelweed, yellow touch-me-not
Family: Berberidaceae
  Genus: 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 alleghaniensis Britton*+
        yellow birch
             Betula alleghaniensis Britton var. alleghaniensis
             Betula alleghaniensis Britton var. fallax (Fassett) Brayshaw
             Betula alleghaniensis Britton var. macrolepis (Fernald) Brayshaw
             Betula lutea F.Michx.
             Betula lutea F.Michx. f. fallax Fassett
             Betula lutea F.Michx. var. macrolepis Fernald
             Betula purpusii C.K.Schneid. f. fallax (Fassett) B.Boivin
    Betula nigra L.*+
        black birch, red birch, river birch
             Betula rubra F.Michx.
    Betula papyrifera Marshall*+
        canoe birch, paper birch, white birch
             Betula alba L. var. elobata Fernald
             Betula alba L. var. papyrifera (Marshall) Spach
             Betula papyracea Aiton
             Betula papyrifera Marshall var. elobata (Fernald) Sarg.
             Betula papyrifera Marshall var. macrostachya Fernald
             Betula papyrifera Marshall var. papyrifera
             Betula papyrifera Marshall var. pensilis Fernald
             Betula papyrifera Marshall var. commutata (Regel) Fernald
             Betula papyrifera Marshall var. subcordata (Rydb.) Sarg.
             Betula subcordata Rydb.
    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
    Betula X sandbergii Britton X *+
        Sandberg's birch
  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.
    Corylus cornuta Marshall subsp. cornuta*+
        beaked hazelnut
             Corylus cornuta Marshall var. cornuta
             Corylus cornuta Marshall var. megaphylla Vict. & J.Rousseau
             Corylus rostrata Aiton
  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: Boraginaceae
  Genus: Cynoglossum
    Cynoglossum officinale L.*+
        common hound's-tongue, gypsy-flower
             Cynoglossum officinale L. f. bicolor (Willd.) Lehm.
  Genus: Hackelia
    Hackelia deflexa (Wahlenb.) Opiz var. americana (A.Gray) Fernald & I.M.Johnst.*+
        American stickseed, cliff stickseed, nodding stickseed
             Echinospermum deflexum (Wahlenb.) Lehm. var. americanum A.Gray
             Hackelia americana (A.Gray) Fernald
             Hackelia deflexa (Wahlenb.) Opiz subsp. americana
             Lappula americana (A.Gray) Rydb.
             Lappula deflexa (Wahlenb.) Garcke subsp. americana
             Lappula deflexa (Wahlenb.) Garcke var. americana (A.Gray) Greene
    Hackelia virginiana (L.) I.M.Johnst.*+
        beggar's-lice, stickseed, wild comfrey
             Lappula virginiana (L.) Greene
             Myosotis virginiana L.
  Genus: Lappula
    Lappula squarrosa (Retz.) Durmort.+
        European stickseed, spiny stickseed, two-row stickseed
             Echinospermum fremontii Torr.
             Lappula echinata Gilib.
             Lappula erecta A.Nelson
             Lappula fremontii (Torr.) Greene
             Lappula lappula (L.) H.Karst.
             Lappula myosotis Moench
             Lappula squarrosa (Retz.) Durmort. var. erecta (A.Nelson) Dorn
             Myosotis squarrosa Retz.
  Genus: Lithospermum
    Lithospermum canescens (Michx.) Lehm.*+
        hoary puccoon
             Batschia canescens Michx.
    Lithospermum caroliniense (Walter ex J.F.Gmel.) MacMill. subsp. croceum*+
        Carolina puccoon, hairy puccoon, plains puccoon
             Batschia gmelinii Michx.
             Lithospermum caroliniense (Walter ex J.F.Gmel.) MacMill. var. croceum (Fernald) Cronquist
             Lithospermum croceum Fernald
             Lithospermum gmelinii (Michx.) Hitchc.
  Genus: Myosotis
    Myosotis scorpioides L.*+
        common forget-me-not, forget-me-not, true forget-me-not, water scorpion-grass
             Myosotis palustris (L.) Hill
    Myosotis verna Nutt.+
        early scorpion-grass, white forget-me-not
             Myosotis virginica auct. non (L.) Britton, Sterns & Poggenb.
Family: Brassicaceae
  Genus: Alliaria
    Alliaria petiolata (M.Bieb.) Cavara & Grande*+
        garlic mustard
             Alliaria alliaria (L.) Britton
             Alliaria officinalis Andrz. ex M.Bieb.
             Arabis petiolata M.Bieb.
             Erysimum alliaria L.
             Sisymbrium alliaria (L.) Scop.
  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 lyrata L.*+
        lyrate rock-cress, sand cress
             Arabis ambigua DC. var. glabra DC.
             Arabis lyrata L. var. glabra (DC.) M.Hopkins
             Arabis lyrata L. var. lyrata
             Arabis lyrata L. var. occidentalis S.Watson
             Arabis lyrata L. var. typica M.Hopkins
             Arabis lyrata L. f. parvisiliqua M.Hopkins var. typica M.Hopkins
    Arabis missouriensis Greene*+
        green rock-cress, Missouri rock-cress
             Arabis laevigata (Muhl. ex Willd.) Poir. var. missouriensis (Greene) Ahles
             Arabis missouriensis Greene var. deamii (M.Hopkins) M.Hopkins
             Arabis viridis Harger
             Arabis viridis Harger var. deamii M.Hopkins
  Genus: Armoracia
    Armoracia rusticana P.Gaertn., B.Mey. & Scherb.*+
        horseradish
             Armoracia armoracia (L.) Cockerell ex Daniels
             Armoracia lapathifolia Gilib.
             Cochlearia armoracia L.
             Nasturtium armoracia (L.) Fr.
             Radicula armoracia (L.) B.L.Rob.
             Rorippa armoracia (L.) Hitchc.
  Genus: Barbarea
    Barbarea vulgaris R.Br.*+
        garden yellow-rocket, winter-cress, yellow-rocket
             Barbarea arcuata (Opiz ex J.Presl & C.Presl) Rchb.
             Barbarea stricta Andrz.
             Barbarea vulgaris R.Br. var. arcuata (Opiz ex J.Presl & C.Presl) Fr.
             Barbarea vulgaris R.Br. var. brachycarpa Rouy & Foucaud
             Barbarea vulgaris R.Br. var. longisiliquosa Carion
             Barbarea vulgaris R.Br. var. sylvestris Fr.
             Campe barbarea (L.) W.Wight ex Piper
             Campe stricta (Andrz.) W.Wight ex Piper
  Genus: Berteroa
    Berteroa incana (L.) DC.*+
        hoary false madwort, hoary-alyssum
             Alyssum incanum L.
  Genus: Capsella
    Capsella bursa-pastoris (L.) Medik.*+
        shepherd's-purse
             Bursa bursa-pastoris (L.) Britton
             Bursa bursa-pastoris (L.) Britton var. bifida Crép.
             Bursa gracilis Gren.
             Bursa rubella (Reut.) Druce
             Capsella bursa-pastoris (L.) Medik. f. arachnoidea Hus
             Capsella rubella Reut.
             Thlaspi bursa-pastoris L.
  Genus: Cardamine
    Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb.*+
        spring-cress
             Arabis bulbosa Schreb. ex Muhl.
             Arabis rhomboidea Pers.
             Cardamine rhomboidea (Pers.) DC.
    Cardamine pensylvanica Muhl. ex Willd.*+
        Pennsylvania bitter-cress
             Cardamine hirsuta L. var. pensylvanica Muhl. ex Willd.
             Cardamine pensylvanica Muhl. ex Willd. var. brittoniana Farw.
    Cardamine pratensis L. var. palustris Wimm. & Grab.*+
        cuckoo-flower
  Genus: Draba
    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: Erysimum
    Erysimum capitatum (Douglas ex Hook.) Greene var. capitatum *+
        sand-dune wallflower
             Erysimum arkansanum Nutt.
             Erysimum asperum auct. non (Nutt.) DC.
    Erysimum cheiranthoides L.*+
        worm-seed mustard, worm-seed wallflower
             Cheirinia cheiranthoides (L.) Link
             Erysimum cheiranthoides L. subsp. altum
    Erysimum inconspicuum (S.Watson) MacMill.+
        small worm-seed mustard, shy wallflower
             Cheirinia inconspicua (S.Watson) Britton
             Erysimum asperum (Nutt.) DC. var. inconspicuum S.Watson
             Erysimum inconspicuum (S.Watson) MacMill. var. inconspicuum
             Erysimum parviflorum Nutt.
  Genus: Lepidium
    Lepidium densiflorum Schrad.*+
        prairie pepper-weed, small peppergrass
    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: Nasturtium
    Nasturtium officinale R.Br.*+
        watercress
             Nasturtium nasturtium-aquaticum (L.) H.Karst.
             Nasturtium officinale R.Br. f. nanum Glück
             Nasturtium officinale R.Br. f. siifolium Rchb.
             Nasturtium officinale R.Br. f. submersum Glück
             Nasturtium officinale R.Br. f. terrestre Glück
             Nasturtium officinale R.Br. var. siifolium (Rchb.) W.D.J.Koch
             Radicula nasturtium-aquaticum (L.) Britten & Rendle
             Rorippa nasturtium-aquaticum (L.) Hayek
             Sisymbrium nasturtium-aquaticum L.
  Genus: Raphanus
    Raphanus raphanistrum L.+
        jointed charlock, white charlock, wild radish
  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
    Sisymbrium officinale (L.) Scop.*+
        hedge-mustard
             Erysimum officinale L.
             Sisymbrium officinale (L.) Scop. var. leiocarpum DC.
             Sisymbrium officinale (L.) Scop. var. officinale
Family: Butomaceae
  Genus: Butomus
    Butomus umbellatus L.*+
        flowering-rush
Family: Cactaceae
  Genus: Opuntia
    Opuntia fragilis (Nutt.) Haw.*+
        brittle prickly-pear, fragile prickly-pear, little prickly-pear
             Cactus fragilis Nutt.
             Opuntia brachyarthra Engelm. & J.M.Bigelow
             Opuntia fragilis (Nutt.) Haw. var. brachyarthra (Engelm. & J.M.Bigelow) J.M.Coult.
             Opuntia fragilis (Nutt.) Haw. var. denudata Wiegand & Backeb.
             Opuntia fragilis (Nutt.) Haw. var. fragilis
             Opuntia schweriniana K.Schum.
Family: Callitrichaceae
  Genus: Callitriche
    Callitriche palustris L.*+
        common water-starwort, vernal water-starwort
             Callitriche palustris L. var. verna (L.) Fenley ex Jeps.
             Callitriche verna L.
Family: Campanulaceae
  Genus: Campanula
    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
  Genus: Triodanis
    Triodanis perfoliata (L.) Nieuwl.*+
        clasping Venus'-looking-glass, round-leaved triodanis
             Legousia perfoliata (L.) Britton
             Specularia perfoliata (L.) A.DC.
             Triodanis perfoliata (L.) Nieuwl. var. perfoliata
Family: Cannabaceae
  Genus: Humulus
    Humulus lupulus L. var. lupuloides E.Small+
        common hop, hop
             Humulus americanus Nutt.
             Humulus lupulus L. subsp. americanus
Family: Caprifoliaceae
  Genus: Diervilla
    Diervilla lonicera Mill.*+
        northern bush-honeysuckle
             Diervilla diervilla (L.) MacMill.
             Diervilla lonicera Mill. var. hypomalaca Fernald
             Diervilla lonicera Mill. var. lonicera
             Diervilla trifida Moench
  Genus: Linnaea
    Linnaea borealis L. subsp. americana*+
        twinflower
             Linnaea americana Forbes
             Linnaea borealis L. var. americana (Forbes) Rehder
  Genus: Lonicera
    Lonicera canadensis W.Bartram ex Marshall*+
        American fly honeysuckle
             Xylosteon ciliatum Pursh
    Lonicera dioica L. var. dioica +
        limber honeysuckle, mountain honeysuckle, red honeysuckle
             Lonicera dioica L. f. trifolia Vict. & Rolland var. dioica
    Lonicera dioica L. var. glaucescens (Rydb.) Butters+
        wild honeysuckle
             Lonicera glaucescens Rydb.
    Lonicera morrowii A.Gray*+
        Asian fly honeysuckle, Morrow's honeysuckle
    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 villosa (Michx.) Schult.*+
        mountain fly honeysuckle
             Lonicera caerulea L. var. villosa (Michx.) Torr. & A.Gray
  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
  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
  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 lentago L.*+
        nannyberry, sheepberry
             Viburnum X vetteri Zabel X
    Viburnum opulus L. subsp. trilobum*+
        American cranberry-bush, cranberry viburnum, high-bush cranberry
             Viburnum opulus L. var. americanum Aiton
             Viburnum opulus L. var. trilobum (Marshall) McAtee
             Viburnum trilobum Marshall
    Viburnum rafinesquianum Schult.*+
        arrow-wood, downy arrow-wood
    Viburnum rafinesquianum Schult. var. affine (Bush ex C.K.Schneid.) House+
        arrow-wood, downy arrow-wood
             Viburnum affine Bush ex C.K.Schneid.
             Viburnum affine Bush ex C.K.Schneid. var. affine
             Viburnum affine Bush ex C.K.Schneid. var. australe (C.V.Morton) McAtee
             Viburnum australe C.V.Morton
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
    Arenaria stricta Michx. subsp. dawsonensis+
        northern rock sandwort, rock stitchwort
             Alsinanthe stricta (Sw.) Rchb. subsp. dawsonensis
             Arenaria dawsonensis Britton
             Arenaria litorea Fernald
             Arenaria stricta Michx. var. dawsonensis (Britton) Scoggan
             Arenaria stricta Michx. var. litorea (Fernald) B.Boivin
             Minuartia dawsonensis (Britton) House
             Sabulina dawsonensis (Britton) Rydb.
    Arenaria stricta Michx. subsp. stricta*+
        rock sandwort, stiff sandwort
             Alsine michauxii Fenzl
             Arenaria macra A.Nelson & J.F.Macbr.
             Arenaria michauxii (Fenzl) Hook.f.
             Arenaria stricta Michx. subsp. macra
             Arenaria stricta Michx. var. puberulenta (M.Peck) C.L.Hitchc.
             Arenaria stricta Michx. var. stricta
             Arenaria stricta Michx. var. uliginosa (Schleich. ex Lam. & DC.) B.Boivin
             Arenaria uliginosa Schleich. ex Lam. & DC.
             Minuartia michauxii (Fenzl) Farw.
             Minuopsis michauxii (Fenzl) W.A.Weber
             Minuartia michauxii (Fenzl) Farw. var. michauxii
             Sabulina stricta (Michx.) Small
  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.
    Cerastium nutans Raf.*+
        nodding chickweed
             Cerastium nutans Raf. var. nutans
  Genus: Dianthus
    Dianthus armeria L.*+
        Deptford pink
  Genus: Gypsophila
    Gypsophila paniculata L.*+
        baby's-breath, baby's-breath gypsophila, common baby's-breath
  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 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 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
Family: Celastraceae
  Genus: Celastrus
    Celastrus scandens L.*+
        American bittersweet, climbing bittersweet
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: 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 simplex (Torr.) Raf.*+
        maple-leaved goosefoot
             Chenopodium gigantospermum Aellen
             Chenopodium hybridum auct. non L.
             Chenopodium hybridum L. subsp. gigantospermum
             Chenopodium hybridum L. var. gigantospermum (Aellen) Rouleau
             Chenopodium hybridum L. var. simplex Torr.
    Chenopodium strictum Roth+
        late-flowering goosefoot
             Chenopodium glaucophyllum Aellen
             Chenopodium strictum Roth subsp. glaucophyllum
             Chenopodium strictum Roth subsp. strictum
             Chenopodium strictum Roth var. glaucophyllum (Aellen) Wahl
             Chenopodium strictum Roth var. strictum
  Genus: Cycloloma
    Cycloloma atriplicifolium (Spreng.) J.M.Coult.*+
        winged pigweed
             Cyclolepis platyphylla (Michx.) Moq.
             Cycloloma platyphyllum (Michx.) Moq.
             Kochia atriplicifolia (Spreng.) Roth
             Salsola atriplicifolia Spreng.
             Salsola platyphylla Michx.
  Genus: Kochia
    Kochia scoparia (L.) Schrad. subsp. scoparia*+
        burning bush, common kockia, Mexican fireweed, summer-cypress
  Genus: Salsola
    Salsola tragus L.*+
        prickly Russian thistle, Russian thistle, tumbleweed
             Salsola australis R.Br.
             Salsola iberica (Sennen & Pau) Botsch. ex Czerep.
             Salsola kali L. subsp. ruthenica
             Salsola kali L. subsp. tragus
             Salsola kali L. var. tenuifolia Tausch ex Moq.
             Salsola pestifer A.Nelson
             Salsola ruthenica Iljin
Family: Cistaceae
  Genus: Helianthemum
    Helianthemum bicknellii Fernald*+
        Bicknell's rock-rose, hoary frostweed, rock-rose
             Crocanthemum bicknellii (Fernald) Barnhart
             Crocanthemum majus sensu Britton
    Helianthemum canadense (L.) Michx.*+
        common rock-rose, long-branch frostweed
             Cistus canadensis L.
             Crocanthemum canadense (L.) Britton
             Helianthemum canadense (L.) Michx. var. sabulonum Fernald
  Genus: Lechea
    Lechea intermedia Legg. ex Britton var. intermedia *+
        intermediate pinweed, large-pod pinweed
             Lechea intermedia Legg. ex Britton var. typica Hodgdon
Family: Commelinaceae
  Genus: Tradescantia
    Tradescantia occidentalis (Britton) Smyth var. occidentalis *+
        prairie spiderwort, western spiderwort
             Tradescantia occidentalis (Britton) Smyth var. typica E.S.Anderson & Woodson
    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: 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 canadensis L.*+
        bunchberry, bunchberry dogwood, dwarf cornel
             Chamaepericlymenum canadense (L.) Asch. & Graebn.
             Cornella canadensis (L.) Rydb.
             Cornus canadensis L. f. dutillyi Lepage
             Cornus canadensis L. f. elongata M.Peck
             Cornus canadensis L. var. dutillyi (Lepage) B.Boivin
             Cornus canadensis L. var. intermedia Farr
    Cornus racemosa Lam.*+
        gray dogwood, northern swamp dogwood, panicled dogwood
             Cornus candidissima Marshall, non Mill.
             Cornus foemina Mill., sensu Drescher (1933)
             Cornus foemina Mill. subsp. racemosa
             Cornus paniculata L'Hér.
             Swida racemosa (Lam.) Moldenke
    Cornus rugosa Lam.*+
        round-leaved dogwood
             Cornus circinata L'Hér.
             Swida rugosa (Lam.) Rydb.
    Cornus stolonifera Michx.*+
        red osier dogwood
             Cornus alba L., pro parte
             Cornus alba L. subsp. stolonifera
             Cornus alba L. var. baileyi (J.M.Coult. & W.H.Evans) B.Boivin
             Cornus alba L. var. californica (C.A.Mey.) B.Boivin
             Cornus alba L. var. interior (Rydb.) B.Boivin
             Cornus baileyi J.M.Coult. & W.H.Evans
             Cornus interior (Rydb.) N.Petersen
             Cornus instolonea A.Nelson
             Cornus sericea L.
             Cornus sericea L. subsp. sericea
             Cornus sericea L. subsp. stolonifera
             Cornus sericea L. var. interior (Rydb.) H.St.John
             Cornus stolonifera Michx. var. baileyi (J.M.Coult. & W.H.Evans) Drescher
             Cornus stolonifera Michx. var. interior (Rydb.) H.St.John
             Cornus X californica C.A.Mey. X
             Swida baileyi (J.M.Coult. & W.H.Evans) Rydb.
             Swida interior Rydb.
             Swida instolonea (A.Nelson) Rydb.
             Swida stolonifera (Michx.) Rydb.
Family: Crassulaceae
  Genus: Sedum
    Sedum ochroleucum Chaix+
        European stonecrop
             Sedum anopetalum DC.
Family: Cucurbitaceae
  Genus: Echinocystis
    Echinocystis lobata (Michx.) Torr. & A.Gray*+
        balsam-apple, wild-cucumber
             Micrampelis lobata (Michx.) Greene
             Sicyos lobata Michx.
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
  Genus: Thuja
    Thuja occidentalis L.*+
        eastern arborvitae, northern white-cedar
Family: Cuscutaceae
  Genus: Cuscuta
    Cuscuta cephalanthi Engelm.+
        buttonbush dodder
             Grammica cephalanthi (Engelm.) Hadac & Chrtek
    Cuscuta gronovii Willd. ex Roem. & Schult. var. gronovii *+
        common dodder, love dodder, scald-weed, swamp dodder
             Cuscuta gronovii Willd. ex Roem. & Schult. var. latiflora Engelm.
             Cuscuta gronovii Willd. ex Roem. & Schult. var. saururi (Engelm.) MacMill.
             Cuscuta umbrosa auct. non Beyr. ex Hook.
             Grammica gronovii (Willd. ex Roem. & Schult) Hadac & Chrtek
             Grammica umbrosa auct. non (Beyr. ex Hook.) W.A.Weber
Family: Cyperaceae
  Genus: Bolboschoenus
    Bolboschoenus fluviatilis (Torr.) Soják*+
        river bulrush
             Schoenoplectus fluviatilis (Torr.) M.T.Strong
             Scirpus fluviatilis (Torr.) A.Gray
             Scirpus maritimus L. var. fluviatilis Torr.
  Genus: Bulbostylis
    Bulbostylis capillaris (L.) Kunth ex C.B.Clarke*+
        hair sedge, thread-leaved beak-seed
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke subsp. capillaris
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke var. crebra Fernald
             Bulbostylis capillaris (L.) Kunth ex C.B.Clarke var. isopoda Fernald
             Fimbristylis capillaris (L.) A.Gray
             Isolepis brachyphylla (Link) Schult.
             Isolepis capillaris (L.) Roem. & Schult.
             Isolepis radiciflora Steud.
             Scirpus brachyiphyllus Link
             Scirpus capillaris L.
             Scirpus muhlenbergii Spreng.
             Stenophyllus capillaris (L.) Britton
  Genus: Carex
    Carex arctata Boott*+
        drooping woodland sedge
             Carex arctata Boott var. faxonii L.H.Bailey
    Carex atherodes Spreng.*+
        hairy-leaved lake sedge, slough sedge
    Carex aurea Nutt.*+
        elk sedge, golden sedge, golden-fruited sedge
    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 brunnescens (Pers.) Poir. subsp. sphaerostachya*+
        brownish sedge, green bog sedge
             Carex brunnescens (Pers.) Poir. var. gracilior Britton
             Carex brunnescens (Pers.) Poir. var. sphaerostachya (Tuck.) Kük.
             Carex buckleyi Dewey
             Carex canescens L. var. sphaerostachya Tuck.
             Carex canescens L. var. vitilis (Fr.) J.Carey
             Carex canescens L. var. vulgaris L.H.Bailey
             Carex sphaerostachya (Tuck.) Dewey
    Carex canescens L.*+
        gray bog sedge, silvery sedge
    Carex canescens L. subsp. canescens
        gray bog sedge, silvery sedge
             Carex canescens L. var. canescens
             Carex canescens L. var. dubia auct.
             Carex canescens L. var. robustina Macoun
             Carex canescens L. var. robustior Blytt ex Andersson
             Carex canescens L. var. subloliacea sensu Fernald, non Laest.
             Carex subloliacea (Fernald) E.P.Bicknell
    Carex canescens L. subsp. disjuncta
        gray bog sedge, silvery sedge
             Carex canescens L. var. disjuncta Fernald
             Carex disjuncta (Fernald) E.P.Bicknell
    Carex chordorrhiza Ehrh. ex L.f.*+
        cord-root sedge, creeping sedge
    Carex comosa Boott*+
        bristly sedge
    Carex crawfordii Fernald*+
        Crawford's oval sedge, Crawford's sedge
             Carex crawfordii Fernald var. vigens Fernald
    Carex cristatella Britton*+
        crested oval sedge, crested sedge
             Carex cristatella Britton f. catelliformis (Farw.) Fernald
             Carex cristata Schwein.
    Carex cryptolepis Mack.*+
        northeastern sedge, small yellow sedge
             Carex flava L. var. fertilis auct. non Peck
    Carex deweyana Schwein. var. deweyana *+
        Dewey's sedge
             Carex deweyana Schwein. subsp. deweyana
    Carex diandra Schrank*+
        bog panicled sedge, lesser panicled sedge
    Carex eburnea Boott*+
        bristle-leaf sedge
    Carex echinata Murray subsp. echinata*+
        large-fruited star sedge, prickly sedge, star sedge
             Carex angustior Mack.
             Carex angustior Mack. var. gracilenta R.T.Clausen & Wahl
             Carex cephalantha (L.H.Bailey) E.P.Bicknell
             Carex echinata Murray var. angustata (J.Carey) L.H.Bailey
             Carex echinata Murray var. echinata
             Carex hawaiiensis H.St.John
             Carex josselynii (Fernald) Mack. ex Pease
             Carex leersii Willd.
             Carex muricata L. var. angustata (J.Carey) J.Carey ex Gleason
             Carex muricata L. var. cephalantha (L.H.Bailey) Wiegand & Eames
             Carex ormantha (Fernald) Mack.
             Carex phyllomanica W.Boott var. angustata (J.Carey) B.Boivin
             Carex phyllomanica W.Boott var. ormantha (Fernald) B.Boivin
             Carex svensonis Skottsb.
    Carex flava L.*+
        large yellow sedge, yellow sedge
             Carex flava L. var. fertilis Peck
             Carex flava L. var. flava
             Carex flava L. var. gaspensis Fernald
             Carex flava L. var. graminis L.H.Bailey
             Carex flava L. var. laxior (Kük.) Gleason
             Carex flava L. var. rectirostra Gaudin
             Carex laxior (Kük.) Mack.
             Carex nevadensis Boiss. & Reut. subsp. flavella
    Carex gracillima Schwein.*+
        graceful sedge, purple-sheathed graceful sedge
             Carex gracillima Schwein. var. macerrima Fernald & Wiegand
    Carex granularis Muhl. ex Willd.*+
        limestone meadow sedge
             Carex granularis Muhl. ex Willd. var. granularis
             Carex granularis Muhl. ex Willd. var. haleana (Olney) Porter
             Carex haleana Olney
             Carex rectior Mack.
             Carex shriveri Britton
    Carex grisea Wahlenb.*+
        eastern narrow-leaved sedge, gray sedge
             Carex amphibola auct. mult.
             Carex amphibola Steud. var. turgida Fernald
    Carex gynocrates Wormsk. ex Drejer*+
        northern bog sedge
             Carex dioica L. subsp. gynocrates
             Carex dioica L. var. gynocrates (Wormsk. ex Drejer) Ostenf.
             Carex parallela auct. non (Laest.) Sommerf.
    Carex hitchcockiana Dewey*+
        hairy wood sedge, Hitchcock's sedge
    Carex hystericina Muhl. ex Willd.*+
        bottlebrush sedge, porcupine sedge
             Carex hystricina Muhl. ex Willd. [orthographic "correction"]
    Carex interior L.H.Bailey*+
        inland sedge, inland star sedge
             Carex interior L.H.Bailey f. keweenawensis (F.J.Herm.) Fernald
             Carex interior L.H.Bailey subsp. charlestonensis
             Carex interior L.H.Bailey var. keweenawensis F.J.Herm.
             Carex scirpoides Sckuhr ex Willd., 1805, non Michx., 1803
    Carex intumescens Rudge*+
        greater bladder sedge, shining bur sedge, swollen sedge
             Carex intumescens Rudge var. fernaldii L.H.Bailey
             Carex intumescens Rudge var. intumescens
    Carex lacustris Willd.*+
        common lake sedge, rip-gut sedge
             Carex riparia M.A.Curtis var. lacustris (Willd.) Kük.
    Carex 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 leptalea Wahlenb. subsp. leptalea*+
        bristle-stalked sedge, slender sedge
    Carex limosa L.*+
        muck sedge, mud sedge
             Carex limosa L. var. irrigua Wahlenb.
    Carex lupulina Willd.*+
        common hop sedge, hop sedge
             Carex lupulina Willd. var. pedunculata A.Gray
             Carex X macounii Dewey X
    Carex magellanica Lam. subsp. irrigua*+
        boreal bog sedge
             Carex magellanica Lam. var. irrigua (Wahlenb.) Britton, Sterns & Poggenb.
             Carex paupercula Michx.
             Carex paupercula Michx. var. brevisquama Fernald
             Carex paupercula Michx. var. irrigua (Wahlenb.) Fernald
             Carex paupercula Michx. var. pallens Fernald
    Carex muhlenbergii Schkuhr ex Willd. var. muhlenbergii +
        Muhlenberg's bracted sedge, Muhlenberg's sedge, sand bracted sedge, sand sedge
    Carex muskingumensis Schwein.*+
        Muskingum sedge, swamp oval sedge
    Carex oligosperma Michx.*+
        few-seeded hop sedge, few-seeded sedge
    Carex pedunculata Muhl. ex Willd.*+
        long-stalk 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 plantaginea Lam.*+
        plantain-leaved sedge, plantain-leaved wood sedge
    Carex prairea Dewey*+
        fen panicled sedge, prairie sedge
             Carex diandra Schrank var. ramosa (Boott) Fernald
    Carex projecta Mack.*+
        loose-headed oval sedge, necklace sedge
    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 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 scoparia Schkuhr ex Willd. var. scoparia *+
        broom sedge, lance-fruited oval sedge
    Carex sprengelii Dewey ex Spreng.*+
        long-beaked sedge, Sprengel's sedge
             Carex longirostris Torr., non Krock.
    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 sychnocephala J.Carey*+
        many-headed oval sedge, many-headed sedge
    Carex tenera Dewey var. echinodes (Fernald) Wiegand*+
        marsh straw sedge, quill sedge
             Carex straminea Willd. ex Schkuhr var. echinodes Fernald
    Carex tenera Dewey var. tenera +
        marsh straw sedge, narrow-leaved oval sedge, quill sedge
             Carex straminea Willd. ex Schkuhr var. tenera (Dewey) Barratt
    Carex tonsa (Fernald) E.P.Bicknell var. rugosperma (Mack.) Crins+
        parachute sedge, wrinkled-seeded oak sedge
             Carex rugosperma Mack.
             Carex rugosperma Mack. var. rugosperma
             Carex umbellata sensu Fernald, non Schkuhr ex Willd.
    Carex trisperma Dewey*+
        three-fruited sedge, three-seeded bog sedge, three-seeded sedge
             Carex trisperma Dewey var. billingsii O.W.Knight
             Carex trisperma Dewey var. trisperma
    Carex tuckermanii Dewey*+
        bent-seeded hop sedge, Tuckerman's sedge
    Carex vesicaria L.*+
        blister sedge, tufted lake sedge
             Carex monile Tuck.
             Carex vesicaria L. var. distenta Fr.
             Carex vesicaria L. var. jejuna Fernald
             Carex vesicaria L. var. monile (Tuck.) Fernald
             Carex vesicaria L. var. vesicaria
    Carex viridula Michx. subsp. viridula*+
        green yellow sedge, little green sedge
             Carex chlorocarpa Mack.
             Carex irregularis Schwein.
             Carex oederi Ehrh., non Retz.
             Carex oederi Retz. subsp. viridula
             Carex oederi Retz. var. recterostrata (Vict.) Dorn
             Carex oederi Retz. var. viridula (Michx.) Kük.
             Carex pulchella (Lönn.) Lindm.
             Carex scandinavica E.W.Davies
             Carex serotina Mérat
             Carex subglobosa Miel.
             Carex viridula Michx. var. pumila (Coss. & Germ.) Fernald
    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: Cladium
    Cladium mariscoides (Muhl.) Torr.*+
        smooth sawgrass, twig-rush
             Mariscus mariscoides (Muhl.) Kuntze
             Schoenus mariscoides Muhl.
  Genus: Cyperus
    Cyperus bipartitus Torr.*+
        shining flat sedge, slender flat sedge
             Cyperus niger Ruiz & Pav. var. rivularis (Kunth) V.E.Grant
             Cyperus rivularis Kunth
             Pycreus rivularis (Kunth) Palla
    Cyperus diandrus Torr.*+
        low cyperus, umbrella flat sedge
             Pycreus diander (Torr.) C.B.Clarke
    Cyperus esculentus L. var. leptostachyus Boeck.
        field nut sedge, flat sedge, yellow nut sedge
             Chlorocyperus phymatodes (Muhl.) Palla
             Cyperus esculentus L. f. angustispicatus (Britton) Fernald
             Cyperus esculentus L. var. angustispicatus Britton
             Cyperus esculentus L. var. phymatodes (Muhl.) Kük.
             Cyperus fulvescens Liebm.
             Cyperus phymatodes Muhl.
             Cyperus repens Elliott
             Cyperus tuberosus Pursh
    Cyperus lupulinus (Spreng.) Marcks subsp. macilentus*+
        Great Plains flat sedge, sand cyperus, slender sand sedge
             Cyperus filiculmis Vahl var. macilentus Fernald
             Cyperus macilentus (Fernald) E.P.Bicknell
             Mariscus filiculmis (Vahl) T.Koyama
    Cyperus lupulinus (Spreng.) Marcks X C. schweinitzii Torr. subsp. macilentus+
    Cyperus odoratus L.+
        flat sedge, fragrant cyperus, rusty flat sedge
             Cyperus acicularis (Nees) Steud.
             Cyperus californicus S.Watson
             Cyperus eggersii Boeck.
             Cyperus engelmannii Steud.
             Cyperus ferax Rich.
             Cyperus ferruginescens Boeck.
             Cyperus ferax Rich. subsp. engelmanii
             Cyperus ferax Rich. subsp. speciosus
             Cyperus ferax Rich. var. speciosus (Britton) Kük.
             Cyperus haenkei J.Presl & C.Presl
             Cyperus huarmensis (Kunth) M.C.Johnst.
             Cyperus longispicatus Norton
             Cyperus macrocephalus Liebm.
             Cyperus michauxianus Schult.
             Cyperus odoratus L. var. acicularis (Schrad. ex Nees) O'Neill
             Cyperus odoratus L. var. engelmannii (Steud.) J.Rich.Carter, S.D.Jones & J.K.Wipff
             Cyperus odoratus L. var. squarrosus (Britton) Gilly
             Cyperus oxycarioides Britton
             Cyperus speciosus Vahl
             Cyperus speciosus Vahl var. ferruginescens (Boeck.) Britton
             Cyperus speciosus Vahl var. squarrosus Britton
             Cyperus squarrosus L. var. parvus Britton
             Diclidium aciculare Schrad. ex Nees
             Diclidium odoratum (L.) Schrad. ex Nees
             Mariscus ferax (Rich.) C.B.Clarke
             Mariscus huarmensis Kunth
             Torulinium confertum Desv. ex Ham.
             Torulinium eggersii (Boeck.) C.B.Clarke
             Torulinium ferax (Rich.) Urb.
             Torulinium macrocephalum (Liebm.) T.Koyama
             Torulinium michauxianum (Schult.) C.B.Clarke
             Torulinium odoratum (L.) S.S.Hooper
    Cyperus squarrosus L.*+
        bearded flat sedge
             Chlorocyperus inflexus (Muhl.) Palla
             Cyperus aristatus Rottb.
             Cyperus aristatus Rottb. var. inflexus (Muhl.) Kük.
             Cyperus aristatus Rottb. var. runyonii O'Neill
             Cyperus inflexus Muhl.
             Dichostylis aristata (Rottb.) Palla
             Mariscus squarrosus (L.) C.B.Clarke
    Cyperus strigosus L.*+
        false nut sedge, straw-colored cyperus
             Cyperus hansenii Britton
             Cyperus stenolepis Torr.
             Cyperus strigosus L. f. robustior Kunth
             Cyperus strigosus L. var. capitatus Boeck.
             Cyperus strigosus L. var. hansenii (Britton) Kük.
             Cyperus strigosus L. var. multiflorus Geise
             Cyperus strigosus L. var. robustior (Kunth) Britton
             Cyperus strigosus L. var. stenolepis (Torr.) Kük.
             Mariscus stenolepis (Torr.) C.B.Clarke
             Mariscus strigosus (L.) C.B.Clarke
  Genus: Dulichium
    Dulichium arundinaceum (L.) Britton var. arundinaceum *+
        pond sedge, three-way sedge
  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 flavescens (Poir.) Urban var. olivacea (Torr.) Gleason*+
        bright green spike-rush, capitate spike-rush, green spike-rush
             Eleocharis flaccida (Rchb.) Urb. var. olivacea (Torr.) Fernald & Griscom
             Eleocharis olivacea Torr.
             Eleocharis olivacea Torr. var. olivacea
             Eleocharis olivacea Torr. var. reductiseta (Schuyler & Ferren) Schuyler & Ferren
    Eleocharis intermedia Schult.*+
        matted spike-rush
             Eleocharis intermedia Schult. var. habereri Fernald
             Eleocharis reclinata Kunth
             Scirpus intermedius Muhl.
    Eleocharis obtusa (Willd.) Schult.*+
        blunt spike-rush
             Eleocharis obtusa (Willd.) Schult. var. ellipsoidalis Fernald
             Eleocharis obtusa (Willd.) Schult. var. gigantea Fernald
             Eleocharis obtusa (Willd.) Schult. var. jejuna Fernald
             Eleocharis obtusa (Willd.) Schult. var. peasei Svenson
             Eleocharis ovata (Roth) Roem. & Schult. var. obtusa (Willd.) Kük. ex Skottsb.
             Scirpus obtusus Willd.
    Eleocharis palustris (L.) Roem. & Schult.*+
        common spike-rush, marsh spike-rush
             Eleocharis calva Torr. var. australis (Nees) H.St.John
             Eleocharis mamillata auct. non H.Lindb.
             Eleocharis palustris (L.) Roem. & Schult. var. australis Nees
             Eleocharis palustris (L.) Roem. & Schult. var. major Sond.
             Eleocharis smallii Britton
             Eleocharis smallii Britton var. major (Sond.) F.Seym.
             Scirpus palustris L.
    Eleocharis quinqueflora (Hartmann) Schwarz*+
        few-flowered spike-rush
             Eleocharis fernaldii (Svenson) A.Löve
             Eleocharis pauciflora (Lightf.) Link
             Eleocharis pauciflora (Lightf.) Link var. fernaldii Svenson
             Eleocharis quinqueflora (Hartmann) Schwarz subsp. fernaldii
             Scirpus pauciflorus Lightf.
             Scirpus quinqueflorus Hartmann
  Genus: Eriophorum
    Eriophorum gracile W.D.J.Koch ex Roth+
        slender cotton-grass
    Eriophorum tenellum Nutt.+
        cotton-grass sedge, conifer cotton-grass, few-nerved cotton-grass
             Eriophorum tenellum Nutt. var. monticola Fernald
    Eriophorum vaginatum L.*+
        tussock cotton-grass
             Eriophorum callitrix auct. non Cham.
             Eriophorum spissum Fernald
             Eriophorum spissum Fernald var. erubescens (Fernald) Fernald
             Eriophorum vaginatum L. subsp. spissum
             Eriophorum vaginatum L. var. spissum (Fernald) B.Boivin
    Eriophorum virginicum L.*+
        rusty cotton-grass, tawny cotton-grass
             Eriophorum virginicum L. f. album (A.Gray) Wiegand
             Eriophorum virginicum L. f. virginicum
  Genus: Rhynchospora
    Rhynchospora alba (L.) Vahl*+
        white beak-rush
             Dichromena alba (L.) J.F.Macbr.
             Phaeocephalum album (L.) House
             Rhynchospora luquillensis Britton
             Schoenus albus L.
             Triodon albus (L.) Farw.
    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.
    Rhynchospora fusca (L.) W.T.Aiton*+
        brown beak-rush, sooty beak-rush
             Phaeocephalum fuscum (L.) House
             Rhynchospora alba (L.) Vahl var. fusca (L.) Vahl
             Schoenus fuscus L.
    Rhynchospora scirpoides (Torr.) Griseb.*+
        long-beaked bald-rush, long-beaked bald sedge
             Psilocarya corymbifera (C.Wright) Britton
             Psilocarya corymbiformis Benth.
             Psilocarya scirpoides Torr.
             Psilocarya scirpoides Torr. var. grimesii Fernald & Griscom
  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 pungens (Vahl) Palla*+
        chair-maker's rush, common three-square bulrush
             Schoenoplectus pungens (Vahl) Palla var. badius (J.Presl & K.Presl) S.G.Sm.
             Schoenoplectus pungens (Vahl) Palla var. longispicatus (Britton) S.G.Sm.
             Schoenoplectus pungens (Vahl) Palla var. pungens
             Scirpus americanus of Amer. authors, not Pers.
             Scirpus americanus Pers. var. longispicatus Britton
             Scirpus americanus Pers. var. monophyllus (J.Presl & C.Presl) T.Koyama
             Scirpus chilensis Nees & Meyen ex Kunth
             Scirpus monophyllus J.Presl & C.Presl
             Scirpus pungens Vahl
             Scirpus pungens Vahl subsp. monophyllus
             Scirpus pungens Vahl var. longispicatus (Britton) Roy L.Taylor & MacBryde
    Schoenoplectus smithii (A.Gray) Soják var. setosus (Fernald) S.G.Sm.+
        blunt-scale bulrush, Smith's bulrush
             Scirpus smithii A.Gray f. setosus (Fernald) Fernald
             Scirpus smithii A.Gray var. setosus Fernald
    Schoenoplectus smithii (A.Gray) Soják var. smithii +
        blunt-scale bulrush, Smith's bulrush
             Scirpus smithii A.Gray
             Scirpus smithii A.Gray f. smithii
             Scirpus smithii A.Gray var. smithii
    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 atrocinctus Fernald X S. cyperinus (L.) Kunth+
    Scirpus cyperinus (L.) Kunth*+
        wool-grass
             Eriophorum cyperinum L.
             Scirpus cyperinus (L.) Kunth var. andrewsii (Fernald) Fernald
             Scirpus cyperinus (L.) Kunth var. condensatus Fernald
             Scirpus cyperinus (L.) Kunth var. cyperinus
             Scirpus cyperinus (L.) Kunth var. eriophorum (Michx.) Kuntze
             Scirpus cyperinus (L.) Kunth var. laxus (A.Gray) Beetle
             Scirpus cyperinus (L.) Kunth var. pelius Fernald
             Scirpus cyperinus (L.) Kunth f. condensatus (Fernald) S.F.Blake var. pelius Fernald
             Scirpus cyperinus (L.) Kunth var. rubricosus (Fernald) Gilly
             Scirpus eriophorum Michx.
             Scirpus rubricosus Fernald
Family: Dennstaedtiaceae
  Genus: Pteridium
    Pteridium aquilinum (L.) Kuhn var. latiusculum (Desv.) Underw. ex A.Heller*+
        bracken, bracken fern, eastern bracken fern
             Pteridium latiusculum (Desv.) Fr.
             Pteris latiuscula Desv.
Family: Dioscoreaceae
  Genus: Dioscorea
    Dioscorea villosa L.*+
        colic-root, wild yam, yam root
             Dioscorea cliffortiana Lam.
             Dioscorea glauca Muhl. ex Bartlett
             Dioscorea hexaphylla Raf.
             Dioscorea hirticaulis Bartlett
             Dioscorea lloydiana E.H.L.Krause
             Dioscorea longifolia Raf.
             Dioscorea megaptera Raf.
             Dioscorea paniculata Michx.
             Dioscorea paniculata Michx. var. glabrifolia Bartlett
             Dioscorea pruinosa Kunth
             Dioscorea quaternata J.F.Gmel.
             Dioscorea quaternata J.F.Gmel. var. glauca (Muhl. ex Bartlett) Fernald
             Dioscorea quaternata J.F.Gmel. var. quaternata
             Dioscorea quinata J.F.Gmel.
             Dioscorea repanda Raf.
             Dioscorea villosa L. f. glabrifolia (Bartlett) Fernald
             Dioscorea villosa L. subsp. glabrifolia
             Dioscorea villosa L. subsp. glauca
             Dioscorea villosa L. subsp. hirticaulis
             Dioscorea villosa L. subsp. quaternata
             Dioscorea villosa L. var. glabrifolia (Bartlett) S.F.Blake
             Dioscorea villosa L. var. hirticaulis (Bartlett) Ahles
             Dioscorea villosa L. var. vera Prain & Burkill
             Dioscorea villosa L. var. villosa
             Dioscorea waltheri Desf.
Family: Droseraceae
  Genus: Drosera
    Drosera intermedia Hayne*+
        narrow-leaved sundew, spoon-leaf sundew
             Drosera intermedia Hayne f. subcaulescens Melvill
    Drosera rotundifolia L.*+
        round-leaved sundew
Family: Dryopteridaceae
  Genus: Athyrium
    Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G.Lawson*+
        common lady fern, lady fern, northeastern lady fern, northern lady fern
             Aspidium angustum Willd.
             Asplenium elatius Link
             Athyrium angustum (Willd.) C.Presl
             Athyrium angustum (Willd.) C.Presl var. elatius (Link) Butters
             Athyrium angustum (Willd.) C.Presl var. rubellum (Gilbert) Butters
             Athyrium angustum (Willd.) C.Presl var. subtripinnatum Butters
             Athyrium filix-femina (L.) Roth ex Mert. subsp. angustum
             Athyrium filix-femina (L.) Roth ex Mert. var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. f. elatius (Link) Clute var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. f. rubellum (Gilbert) Farw. var. michauxii (Spreng.) Farw.
             Athyrium filix-femina (L.) Roth ex Mert. var. rubellum Gilbert
  Genus: Cystopteris
    Cystopteris bulbifera (L.) Bernh.*+
        bladder fern, bulblet bladder fern, bulblet fragile fern
             Filix bulbifera (L.) Underw.
             Polypodium bulbiferum L.
    Cystopteris fragilis (L.) Bernh.*+
        bladder fern, brittle bladder fern, northern fragile fern
             Cystopteris dickieana Sim
             Cystopteris fragilis (L.) Bernh. subsp. dickieana
             Cystopteris fragilis (L.) Bernh. var. angustata Lawson
             Cystopteris fragilis (L.) Bernh. var. fragilis
             Cystopteris fragilis (L.) Bernh. var. woodsioides H.Christ
             Filix fragilis (L.) Gilib.
             Polypodium fragile L.
    Cystopteris laurentiana (Weath.) Blasdell*+
        Laurentian bladder fern, St. Lawrence bladder fern
             Cystopteris fragilis (L.) Bernh. var. huteri (Hausm.) Luerss.
             Cystopteris fragilis (L.) Bernh. var. laurentiana Weath.
             Cystopteris X laurentiana (Weath.) Blasdell X
  Genus: Deparia
    Deparia acrostichoides (Sw.) M.Kato*+
        silver false spleenwort, silvery glade fern, silvery spleenwort
             Asplenium acrostichoides Sw.
             Athyrium acrostichoides (Sw.) Diels
             Athyrium thelypterioides (Michx.) Desv.
             Athyrium thelypterioides (Michx.) Desv. f. acrostichoides (Sw.) Gilbert
             Diplazium acrostichoides (Sw.) Butters
  Genus: Dryopteris
    Dryopteris carthusiana (Vill.) H.P.Fuchs*+
        spinulose wood fern, toothed wood fern
             Aspidium spinulosum (O.F.Müll.) Sw.
             Dryopteris austriaca (Jacq.) Woyn. var. spinulosa (O.F.Müll) Fiori
             Dryopteris spinulosa (O.F.Müll.) Watt
             Polypodium carthusianum Vill.
             Polypodium spinulosum O.F.Müll.
             Thelypteris spinulosa (O.F.Müll.) Nieuwl.
    Dryopteris cristata (L.) A.Gray*+
        crested shield fern, crested wood fern
             Aspidium cristatum (L.) Sw.
             Polypodium cristatum L.
             Thelypteris cristata (L.) Nieuwl.
    Dryopteris goldiana (Hook. ex Goldie) A.Gray*+
        giant wood fern, Goldie's fern, Goldie's wood fern
             Aspidium goldianum Hook. ex Goldie
             Thelypteris goldiana (Hook. ex Goldie) Nieuwl.
    Dryopteris intermedia (Muhl. ex Willd.) A.Gray*+
        fancy wood fern, glandular wood fern, intermediate wood fern
             Aspidium intermedium Muhl. ex Willd.
             Aspidium spinulosum (O.F.Müll.) Sw. var. intermedium (Muhl. ex Willd.) D.C.Eaton
             Dryopteris austriaca (Jacq.) Woyn. var. intermedia (Muhl. ex Willd.) C.V.Morton
             Dryopteris spinulosa (O.F.Müll.) Watt var. intermedia (Muhl. ex Willd.) Underw.
             Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. intermedia (Muhl. ex Willd.) Nieuwl.
    Dryopteris X triploidea Wherry X +
        triploid wood fern
             Dryopteris austriaca (Jacq.) Woyn. var. fructuosa (Gilbert) C.V.Morton
             Dryopteris intermedia (Muhl. ex Willd.) A.Gray var. fructuosa (Gilbert) Wherry
             Dryopteris spinulosa (O.F.Müll.) Watt var. fructuosa (Gilbert) Trudell
             Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. fructuosa (Gilbert) Fernald
    Dryopteris X uliginosa (A.Braun ex Dowell) Druce X +
        spinulose crested wood fern
             Dryopteris cristata (L.) A.Gray X D. spinulosa (O.F.Müll.) Watt
  Genus: Gymnocarpium
    Gymnocarpium dryopteris (L.) Newman*+
        common oak fern, western oak fern
             Dryopteris disjuncta (Rupr.) C.V.Morton
             Dryopteris dryopteris (L.) Britton
             Dryopteris linnaeana C.Chr.
             Lastrea dryopteris (L.) Bory
             Polypodium dryopteris L.
             Phegopteris dryopteris (L.) Fée
             Thelypteris dryopteris (L.) Sloss.
  Genus: 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.
  Genus: Woodsia
    Woodsia ilvensis (L.) R.Br.*+
        rusty cliff fern, rusty woodsia
             Acrostichum ilvense L.
Family: Elaeagnaceae
  Genus: Elaeagnus
    Elaeagnus angustifolia L.*+
        oleaster, Russian olive
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.
    Equisetum scirpoides Michx.*+
        dwarf scouring rush, sedge horsetail
    Equisetum sylvaticum L.*+
        wood horsetail, woodland horsetail
             Equisetum sylvaticum L. var. multiramosum (Fernald) Wherry
             Equisetum sylvaticum L. var. pauciramosum Milde
             Equisetum sylvaticum L. f. multiramosum Fernald var. pauciramosum Milde
Family: Ericaceae
  Genus: Andromeda
    Andromeda glaucophylla Link*+
        bog-rosemary
             Andromeda glaucophylla Link var. iodandra Fernald
             Andromeda polifolia L. subsp. glaucophylla
             Andromeda polifolia L. var. glaucophylla (Link) DC.
  Genus: Chamaedaphne
    Chamaedaphne calyculata (L.) Moench var. angustifolia (Aiton) Rehder*+
        leather-leaf
             Andromeda calyculata L. var. angustifolia Aiton
             Cassandra calyculata (L.) D.Don var. angustifolia (Aiton) Seym.
  Genus: Gaultheria
    Gaultheria hispidula (L.) Muhl. ex Bigelow*+
        creeping-snowberry, moxie
             Chiogenes hispidula (L.) Torr. & A.Gray
    Gaultheria procumbens L.+
        checkerberry, eastern teaberry, wintergreen
  Genus: Gaylussacia
    Gaylussacia baccata (Wangenh.) K.Koch*+
        black huckleberry, huckleberry
             Andromeda baccata Wangenh.
             Decachaena baccata (Wangenh.) Small
  Genus: Kalmia
    Kalmia polifolia Wangenh.*+
        bog-laurel, pale-laurel, swamp-laurel
             Chamaedaphne glauca (Aiton) Kuntze
             Kalmia polifolia Wangenh. var. rosmarinifolia (Pursh) Rehder
  Genus: Ledum
    Ledum groenlandicum Oeder*+
        Labrador-tea
             Ledum latifolium Jacq.
             Ledum palustre L. subsp. groenlandicum
             Ledum palustre L. var. latifolium (Jacq.) Michx.
             Rhododendron groenlandicum (Oeder) Kron & Judd
  Genus: Vaccinium
    Vaccinium angustifolium Aiton*+
        early low blueberry, low-bush blueberry, low sweet blueberry
             Vaccinium angustifolium Aiton var. hypolasium Fernald
             Vaccinium angustifolium Aiton var. laevifolium House
             Vaccinium angustifolium Aiton var. nigrum (A.W.Wood) Dole
             Vaccinium brittonii Porter ex E.P.Bicknell
             Vaccinium lamarckii Camp
             Vaccinium nigrum (A.W.Wood) Britton
             Vaccinium pensilvanicum Lam.
             Vaccinium pensilvanicum Lam. var. angustifolium (Aiton) A.Gray
             Vaccinium pensilvanicum Lam. var. nigrum A.W.Wood
    Vaccinium macrocarpon Aiton*+
        cranberry, large cranberry
             Oxycoccus macrocarpus (Aiton) Pers.
    Vaccinium oxycoccos L.*+
        small cranberry
             Oxycoccus hagerupii A.Löve & D.Löve
             Oxycoccus intermedius (A.Gray) Rydb.
             Oxycoccus microcarpus Turcz. ex Rupr.
             Oxycoccus ovalifolius (Michx.) Porsild
             Oxycoccus oxycoccos (L.) MacMill.
             Oxycoccus oxycoccos (L.) Adolphi
             Oxycoccus palustris Pers.
             Oxycoccus palustris Pers. subsp. microphyllus
             Oxycoccus palustris Pers. var. intermedius (A.Gray) T.J.Howell
             Oxycoccus palustris Pers. var. ovalifolius (Michx.) Seym.
             Oxycoccus quadripetalus Gilib.
             Oxycoccus quadripetalus Gilib. var. microphyllus (Lange) Porsild
             Vaccinium microcarpos (Turcz. ex Rupr.) Schmalh.
             Vaccinium microphyllum (Lange) Hagerup ex A.Löve
             Vaccinium oxycoccos L. var. intermedium A.Gray
             Vaccinium oxycoccos L. var. microphyllum (Lange) J.Rousseau & Raymond
             Vaccinium oxycoccos L. var. ovalifolium Michx.
             Vaccinium uliginosum L. var. microphyllum Lange
Family: Eriocaulaceae
  Genus: Eriocaulon
    Eriocaulon aquaticum (Hill) Druce*+
        seven-angle pipewort, white buttons
             Cespa aquatica Hill
             Eriocaulon articulatum (Huds.) Morong
             Eriocaulon pellucidum Michx.
             Eriocaulon pumilum Raf.
             Eriocaulon septangulare With.
             Nasmythia articulata Huds.
             Nasmythia septangularis (With.) Mart.
Family: Euphorbiaceae
  Genus: Acalypha
    Acalypha rhomboidea Raf.*+
        rhombic copper-leaf, three-seeded-mercury
             Acalypha virginica L. var. rhomboidea (Raf.) Cooperr.
  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.
  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 esula L. var. esula *+
        leafy spurge, wolf's-milk
             Euphorbia intercedens Podp. ex Harrington
             Euphorbia poderae Croizat
             Galarhoeus esula (L.) Rydb.
             Tithymalus esula (L.) Hill
Family: Fabaceae
  Genus: Amorpha
    Amorpha canescens Pursh*+
        lead-plant
             Amorpha brachycarpa E.J.Palmer
             Amorpha canescens Pursh f. canescens
             Amorpha canescens Pursh f. glabrata (A.Gray) Fassett
             Amorpha canescens Pursh var. glabrata A.Gray
  Genus: Amphicarpaea
    Amphicarpaea bracteata (L.) Fernald*+
        American hog-peanut, hog-peanut
             Amphicarpaea bracteata (L.) Fernald var. bracteata
             Amphicarpaea bracteata (L.) Fernald var. comosa (L.) Fernald
             Amphicarpaea bracteata (L.) Fernald var. pitcheri (Torr. & A.Gray) Fassett
             Amphicarpaea comosa (L.) G.Don
             Amphicarpaea monoica (L.) Elliott
             Amphicarpaea pitcheri Torr. & A.Gray
             Falcata comosa (L.) Kuntze
             Falcata pitcheri (Torr. & A.Gray) Kuntze
             Glycine bracteata L.
             Glycine comosa L.
             Glycine monoica L.
  Genus: Apios
    Apios americana Medik.*+
        common groundnut, Indian-potato, potato-bean
             Apios americana Medik. f. pilosa Steyerm.
             Apios americana Medik. var. turrigera Fernald
             Apios tuberosa Moench
             Glycine apios L.
  Genus: Baptisia
    Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely*+
        large-leaved wild indigo, milky white indigo, white wild indigo
             Baptisia lactea (Raf.) Thieret var. lactea
             Baptisia leucantha Torr. & A.Gray
             Baptisia leucantha Torr. & A.Gray var. divaricata Larisey
             Baptisia leucantha Torr. & A.Gray var. pauciflora Larisey
             Baptisia pendula Larisey var. macrophylla Larisey
             Dolichos lacteus Raf.
    Baptisia bracteata Muhl. ex Elliott var. glabrescens (Larisey) Isely*+
        cream wild indigo, long-bracted wild indigo, plains wild indigo
             Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi
             Baptisia leucophaea Nutt.
             Baptisia leucophaea Nutt. var. glabrescens Larisey
  Genus: Dalea
    Dalea candida Michx. ex Willd. var. candida +
        slender white prairie-clover, white prairie-clover
             Petalostemon candidum (Michx. ex Willd.) Michx.
    Dalea purpurea Vent. var. purpurea *+
        purple prairie-clover, violet prairie-clover
             Petalostemon molle Rydb.
             Petalostemon purpureum (Vent.) Rydb.
             Petalostemon purpureum (Vent.) Rydb. f. pubescens (A.Gray) Fassett
             Petalostemon purpureum (Vent.) Rydb. f. purpureum
             Petalostemon purpureum (Vent.) Rydb. var. molle (Rydb.) B.Boivin
  Genus: Desmodium
    Desmodium canadense (L.) DC.*+
        Canadian tick-trefoil, showy tick-trefoil
             Hedysarum canadense L.
             Meibomia canadensis (L.) Kuntze
    Desmodium glutinosum (Muhl. ex Willd.) A.W.Wood*+
        cluster-leaf tick-trefoil, pointed tick-trefoil
             Desmodium acuminatum (Michx.) DC.
             Desmodium acuminatum (Michx.) DC. f. chandonnetii (Lunell) Fassett
             Desmodium glutinosum (Muhl. ex Willd.) A.W.Wood f. chandonnetii (Lunell) B.G.Schub.
             Hedysarum acuminatum Michx.
             Hedysarum glutinosum Muhl. ex Willd.
             Meibomia acuminata (Michx.) S.F.Blake
             Meibomia grandiflora auct. non (Walter) Kuntze
             Meibomia grandiflora (Walter) Kuntze var. chandonnetii Lunell
    Desmodium nudiflorum (L.) DC.*+
        bare-stemmed tick-trefoil, naked tick-trefoil
             Desmodium nudiflorum (L.) DC. f. foliolatum (Farw.) Fassett
             Desmodium nudiflorum (L.) DC. f. nudiflorum
             Desmodium nudiflorum (L.) DC. f. personatum Fassett
             Hedysarum nudiflorum L.
             Meibomia nudiflora (L.) Kuntze
             Meibomia nudiflora (L.) Kuntze f. foliolata Farw.
  Genus: Lathyrus
    Lathyrus ochroleucus Hook.*+
        cream pea-vine, pale vetchling, white pea
    Lathyrus 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 venosus Muhl. ex Willd.*+
        forest pea, veiny pea, veiny pea-vine
             Lathyrus oreophilus Wooton & Standl.
             Lathyrus venosus Muhl. ex Willd. subsp. arkansanus
             Lathyrus venosus Muhl. ex Willd. var. arkansanus Fassett
             Lathyrus venosus Muhl. ex Willd. var. intonsus Butters & H.St.John
             Lathyrus venosus Muhl. ex Willd. var. meridionalis Butters & H.St.John
  Genus: Lespedeza
    Lespedeza capitata Michx.*+
        round-headed bush-clover, round-headed lespedeza
             Lespedeza bicknellii House
             Lespedeza capitata Michx. var. capitata
             Lespedeza capitata Michx. var. longifolia (DC.) Torr. & A.Gray
             Lespedeza capitata Michx. var. sericea (Hook. & Arn.) Torr. & A.Gray
             Lespedeza capitata Michx. var. stenophylla Bissell & Fernald
             Lespedeza capitata Michx. var. velutina (E.P.Bicknell) Fernald
             Lespedeza capitata Michx. var. vulgaris Torr. & A.Gray
             Lespedeza longifolia DC.
             Lespedeza velutina E.P.Bicknell
  Genus: Lupinus
    Lupinus perennis L.*+
        sundial lupine, wild lupine
    Lupinus perennis L. var. occidentalis S.Watson+
        wild lupine
             Lupinus perennis L. var. occidentalis S.Watson subsp. perennis
  Genus: 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. subsp. falcata+
        alfalfa, yellow alfalfa
             Medicago falcata L.
    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: Tephrosia
    Tephrosia virginiana (L.) Pers.*+
        goat's-rue, rabbit-pea, Virginia tephrosia
             Cracca latidens Small
             Cracca mohrii Rydb.
             Cracca virginiana L.
             Tephrosia holosericea Nutt.
             Tephrosia latidens (Small) Standl.
             Tephrosia mohrii (Rydb.) Godfrey
             Tephrosia virginiana (L.) Pers. var. glabra Nutt.
             Tephrosia virginiana (L.) Pers. var. holosericea (Nutt.) Torr. & A.Gray
             Tephrosia virginiana (L.) Pers. var. virginiana
  Genus: Trifolium
    Trifolium 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
Family: Fagaceae
  Genus: Castanea
    Castanea dentata (Marshall) Borkh.*+
        American chestnut
             Castanea americana (Michx.) Raf.
             Fagus-Castanea dentata Marshall
  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 bicolor Willd.*+
        swamp white oak
             Quercus bicolor Willd. var. angustifolia Dippel
             Quercus bicolor Willd. var. cuneiformis Dippel
    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 canadensis (Goldie) Walp.*+
        squirrel-corn
             Bicuculla canadensis (Goldie) Millsp.
             Corydalis canadensis Goldie
    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 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
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 carolinianum L. var. confertiflorum Fernald+
        Carolina crane's-bill, Carolina geranium
    Geranium maculatum L.*+
        Crane's-bill, spotted geranium, wild geranium
             Geranium maculatum L. f. albiflorum (Raf.) House
Family: Grossulariaceae
  Genus: Ribes
    Ribes americanum Mill.*+
        American black currant, eastern black currant, wild black currant
             Ribes americanum Mill. f. pauciglandulosum Fassett
             Ribes floridum L'Hér.
    Ribes cynosbati L.*+
        dogberry, eastern prickly gooseberry, prickly wild gooseberry
             Grossularia cynosbati (L.) Mill.
             Ribes cynosbati L. f. inerme Rehder
             Ribes cynosbati L. var. atrox Fernald
             Ribes cynosbati L. var. glabratum Fernald
             Ribes cynosbati L. var. inerme (Rehder) L.H.Bailey
             Ribes huronense Rydb.
    Ribes glandulosum Grauer*+
        skunk currant
             Ribes prostratum L'Hér.
             Ribes prostratum L'Hér. var. wisconsinum Fassett
             Ribes resinosum Pursh
    Ribes hirtellum Michx.*+
        hairy-stem gooseberry, northern gooseberry, swamp gooseberry
             Grossularia hirtella (Michx.) Spach
             Ribes hirtellum Michx. var. calcicola (Fernald) Fernald
             Ribes hirtellum Michx. var. saxosum (Hook.) Fernald
             Ribes oxyacanthoides L. var. calcicola Fernald
             Ribes oxyacanthoides L. var. hirtellum (Michx.) Scoggan
             Ribes oxyacanthoides L. var. saxosum (Hook.) Coville
             Ribes saxosum Hook.
    Ribes hudsonianum Richardson*+
        Canadian black currant, northern black currant
    Ribes nigrum L.+
        European black currant, garden black currant
    Ribes odoratum H.Wendl.*+
        buffalo-currant, clove currant, golden currant
             Ribes aureum Pursh var. villosum DC.
    Ribes rubrum L.*+
        cherry-currant, cultivated currant, garden red currant
             Ribes sativum Syme
             Ribes sylvestre (Lam.) Mert. & W.D.J.Koch
             Ribes vulgare Lam.
    Ribes triste Pall.*+
        swamp red currant
             Ribes albinervium Michx.
             Ribes propinquum Turcz.
             Ribes rubrum L. var. alaskanum (Berger) B.Boivin
             Ribes rubrum L. var. propinquum (Turcz.) Trautv. & C.A.Mey.
             Ribes triste Pall. var. alaskanum Berger
             Ribes triste Pall. var. albinervium (Michx.) Fernald
Family: Haloragaceae
  Genus: Myriophyllum
    Myriophyllum heterophyllum Michx.+
        two-leaf water-milfoil, various-leaved water-milfoil
    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 tenellum Bigelow*+
        dwarf water-milfoil, slender 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: Hydrocharitaceae
  Genus: Elodea
    Elodea canadensis Michx.*+
        Canadian waterweed, common waterweed
             Anacharis canadensis (Michx.) Planch.
             Anacharis canadensis (Michx.) Planch. var. planchonii (Casp.) Vict.
             Elodea brandegeae H.St.John
             Elodea ioensis Wylie
             Elodea linearis (Rydb.) H.St.John
             Elodea planchonii Casp.
             Philotria canadensis (Michx.) Britton
             Philotria linearis Rydb.
    Elodea nuttallii (Planch.) H.St.John+
        free-flowered waterweed, slender waterweed
             Anacharis nuttallii Planch.
             Anacharis occidentalis (Pursh) Vict.
             Elodea columbiana H.St.John
             Elodea minor (Engelm. ex Casp.) Farw.
             Elodea occidentalis (Pursh) H.St.John
             Philotria angustifolia (Muhl.) Britton ex Rydb.
             Philotria minor (Engelm. ex Casp.) Small
             Philotria nuttallii (Planch.) Rydb.
             Philotria occidentalis (Pursh) House
             Udora verticillata (L.f.) Spreng. var. minor Engelm. ex Casp.
  Genus: Vallisneria
    Vallisneria americana Michx.*+
        American eelgrass, water-celery
             Vallisneria americana Michx. var. americana
             Vallisneria asiatica Michx.
             Vallisneria neotropicalis Vict.
             Vallisneria spiralis auct. non L.
             Vallisneria spiralis L. var. asiatica (Michx.) Torr.
Family: Hydrophyllaceae
  Genus: Hydrophyllum
    Hydrophyllum virginianum L.*+
        John's-cabbage, Shawnee-salad, Virginia water-leaf
             Hydrophyllum virginianum L. var. atranthum (Alexander) Constance
             Hydrophyllum virginianum L. var. virginianum
Family: Hypericaceae
  Genus: Hypericum
    Hypericum boreale (Britton) E.P.Bicknell*+
        northern St. John's-wort
             Hypericum boreale (Britton) E.P.Bicknell f. callitrichoides Fassett
             Hypericum mutilum L. subsp. boreale
    Hypericum majus (A.Gray) Britton*+
        larger Canadian St. John's-wort
             Hypericum canadense L. var. majus A.Gray
    Hypericum perforatum L.*+
        common St. John's-wort, Klamath-weed, St. John's-wort
    Hypericum punctatum Lam.*+
        spotted St. John's-wort
             Hypericum punctatum Lam. f. subpetiolatum (E.P. Bicknell ex Small) Fernald
             Hypericum subpetiolatum E.P.Bicknell ex Small
    Hypericum pyramidatum Aiton*+
        giant St. John's-wort, great St. John's-wort
             Hypericum ascyron L., misapplied
  Genus: Triadenum
    Triadenum fraseri (Spach) Gleason*+
        bog St. John's-wort, Fraser's marsh St. John's-wort
             Elodea fraseri Spach
             Hypericum virginicum L. var. fraseri (Spach) Fernald
             Triadenum virginicum (L.) Raf. subsp. fraseri
             Triadenum virginicum (L.) Raf. var. fraseri (Spach) Cooperr.
Family: Iridaceae
  Genus: Iris
    Iris versicolor L.*+
        blue flag, harlequin blue flag, northern blue flag
    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
    Sisyrinchium montanum Greene var. montanum +
        mountain blue-eyed grass, strict blue-eyed grass
             Sisyrinchium heterocarpum E.P.Bicknell
             Sisyrinchium montanum Greene subsp. montanum
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 alpinoarticulatus Chaix*+
        northern green rush
             Juncus alpinus Vill.
             Juncus alpinoarticulatus Chaix subsp. americanus
             Juncus alpinoarticulatus Chaix subsp. fuscescens
             Juncus alpinoarticulatus Chaix subsp. nodulosus
             Juncus alpinus Vill. subsp. nodulosus
             Juncus alpinus Vill. var. americanus Farw.
             Juncus alpinus Vill. var. fuscescens Fernald
             Juncus alpinus Vill. var. insignis Fr. ex Buchenau
             Juncus alpinus Vill. var. rariflorus (Hartm.) Hartm.
             Juncus nodulosus Wahlenb.
             Juncus rariflorus Hartm.
             Juncus richardsonianus Schult.
    Juncus anthelatus (Wiegand) R.E.Brooks+
             Juncus macer S.F.Gray f. anthelatus (Wiegand) F.J.Herm.
             Juncus macer S.F.Gray f. discretiflorus F.J.Herm.
             Juncus macer S.F.Gray var. anthelatus (Wiegand) Fernald
             Juncus tenuis Willd. f. anthelatus (Wiegand) F.J.Herm.
             Juncus tenuis Willd. f. discretiflorus (F.J.Herm.) Fernald
             Juncus tenuis Willd. var. anthelatus Wiegand
    Juncus articulatus L.*+
        jointed rush
             Juncus articulatus L. var. obtusatus Engelm.
    Juncus brevicaudatus (Engelm.) Fernald*+
        narrow-panicle rush
             Juncus canadensis J.Gay var. brevicaudatus Engelm.
             Juncus canadensis J.Gay var. coarctatus Engelm.
             Juncus canadensis J.Gay var. kuntzei Buchenau
             Juncus coarctatus (Engelm.) Buchenau
             Juncus kuntzei (Buchenau) Vierh.
             Juncus tweedyi Rydb.
    Juncus canadensis J.Gay*+
        Canadian rush
             Juncus canadensis J.Gay f. apertus Fernald
             Juncus canadensis J.Gay f. canadensis
             Juncus canadensis J.Gay f. conglobatus Fernald
             Juncus canadensis J.Gay var. euroauster Fernald
             Juncus canadensis J.Gay var. longicaudatus Engl.
             Juncus canadensis J.Gay var. sparsiflorus Fernald
             Juncus longicaudatus (Engelm.) Mack.
             Juncus polycephalus Michx. var. paradoxus Torr.
    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 effusus L.*+
        common rush, soft rush
             Juncus conglomeratus L.
             Juncus effusus L. subsp. solutus
             Juncus effusus L. var. caeruleomontanus H.St.John
             Juncus effusus L. var. compactus auct. non Lej. & Courtois
             Juncus effusus L. var. compactus Lej. & Courtois
             Juncus effusus L. var. conglomeratus (L.) Engelm.
             Juncus effusus L. var. costulatus Fernald
             Juncus effusus L. var. decipiens of Amer. authors, not Buchenau
             Juncus effusus L. var. effusus
             Juncus effusus L. var. pylaei (Laharpe) Fernald & Wiegand
             Juncus effusus L. var. solutus Fernald & Wiegand
             Juncus griscomii Fernald
             Juncus pylaei Laharpe
    Juncus nodosus L.*+
        joint rush, jointed rush, knotted rush
             Juncus nodosus L. var. meridianus F.J.Herm.
             Juncus nodosus L. var. nodosus
             Juncus rostkovii E.Mey.
    Juncus pelocarpus E.Mey.*+
        brown-fruited rush
             Juncus abortivus Chapm.
             Juncus pelocarpus E.Mey. f. submersus Fernald
             Juncus pelocarpus E.Mey. var. crassicaudex Engelm.
             Juncus pelocarpus E.Mey. var. pelocarpus
             Juncus pelocarpus E.Mey. var. sabulonensis H.St.John
    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: Lamiaceae
  Genus: Blephilia
    Blephilia hirsuta (Pursh) Benth. var. hirsuta *+
        hairy pagoda-plant, hairy wood mint
  Genus: Clinopodium
    Clinopodium vulgare L.*+
        wild-basil
             Clinopodium vulgare L. var. diminutum Simon
             Clinopodium vulgare L. var. neogaea (Fernald) C.F.Reed
             Satureja vulgaris (L.) Fritsch
             Satureja vulgaris (L.) Fritsch var. diminuta (Simon) Fernald & Wiegand
             Satureja vulgaris (L.) Fritsch var. neogaea Fernald
  Genus: Glechoma
    Glechoma hederacea L.*+
        creeping-Charlie, gill-over-the-ground, ground-ivy
  Genus: Hedeoma
    Hedeoma hispida Pursh*+
        rough false pennyroyal, rough pennyroyal
  Genus: Leonurus
    Leonurus cardiaca L.*+
        lion's-tail, motherwort
  Genus: Lycopus
    Lycopus americanus Muhl. ex W.P.C.Barton*+
        American water-horehound, common water-horehound
             Lycopus americanus Muhl. ex W.P.C.Barton var. longii Benner
             Lycopus americanus Muhl. ex W.P.C.Barton var. scabrifolius Fernald
             Lycopus sinuatus Elliott
    Lycopus 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
    Monarda punctata L. var. villicaulis (Pennell) E.J.Palmer & Steyerm.*+
        dotted horsemint, horsemint
             Monarda punctata L. var. villicaulis (Pennell) E.J.Palmer & Steyerm. subsp. punctata
             Monarda punctata L. subsp. villicaulis
  Genus: Nepeta
    Nepeta cataria L.*+
        catnip
  Genus: Physostegia
    Physostegia virginiana (L.) Benth. subsp. virginiana*+
        false dragonhead, obedience
             Dracocephalum denticulatum Aiton
             Dracocephalum formosius (Lunell) Rydb.
             Dracocephalum virginianum L.
             Physostegia denticulata (Aiton) Britton
             Physostegia formosior Lunell
             Physostegia granulosa Fassett
             Physostegia speciosa (Sweet) Sweet
             Physostegia speciosa (Sweet) Sweet var. glabriflora Fassett
             Physostegia virginiana (L.) Benth. var. elongata B.Boivin
             Physostegia virginiana (L.) Benth. var. formosior (Lunell) B.Boivin
             Physostegia virginiana (L.) Benth. var. granulosa (Fassett) Fernald
             Physostegia virginiana (L.) Benth. var. speciosa (Sweet) A.Gray
             Physostegia virginiana (L.) Benth. var. virginiana
  Genus: Prunella
    Prunella vulgaris L. subsp. lanceolata+
        lance self-heal
             Prunella pennsylvanica Willd. var. lanceolata W.P.C.Barton
             Prunella vulgaris L. var. elongata Benth.
             Prunella vulgaris L. var. lanceolata (W.P.C.Barton) Fernald
             Prunella vulgaris L. f. iodocalyx Fernald var. lanceolata (W.P.C.Barton) Fernald
  Genus: Pycnanthemum
    Pycnanthemum tenuifolium Schrad.*+
        narrow-leaved mountain mint, slender mountain mint
             Koellia flexuosa auct. non (Walter) MacMill.
             Pycnanthemum flexuosum auct. non (Walter) Britton, Sterns & Poggenb.
    Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald*+
        common mountain mint, Virginia mountain mint
  Genus: Scutellaria
    Scutellaria galericulata L.*+
        common skullcap, marsh skullcap
             Scutellaria epilobiifolia A.Ham.
             Scutellaria galericulata L. subsp. pubescens
             Scutellaria galericulata L. var. epilobiifolia (A.Ham.) Jordal
             Scutellaria galericulata L. var. pubescens Benth.
    Scutellaria lateriflora L.*+
        blue skullcap, mad-dog skullcap
             Scutellaria lateriflora L. var. lateriflora
    Scutellaria parvula Michx. var. missouriensis (Torr.) Goodman & C.A.Lawson*+
        Leonard's skullcap, smooth small skullcap
             Scutellaria ambigua Nutt.
             Scutellaria ambigua Nutt. var. missouriensis Torr.
             Scutellaria leonardii Epling
             Scutellaria nervosa Pursh var. ambigua (Nutt.) Fernald
             Scutellaria parvula Michx. var. ambigua (Nutt.) Fernald
             Scutellaria parvula Michx. var. leonardii (Epling) Fernald
  Genus: Stachys
    Stachys palustris L.*+
        hedge-nettle, marsh hedge-nettle, woundwort
    Stachys tenuifolia Willd. var. tenuifolia *+
        narrow-leaved hedge-nettle, smooth hedge-nettle
             Stachys glabra Riddell
             Stachys hispida Pursh
             Stachys palustris L. var. hispida (Pursh) B.Boivin
             Stachys tenuifolia Willd. var. hispida (Pursh) Fernald
             Stachys tenuifolia Willd. var. platyphylla Fernald
  Genus: Teucrium
    Teucrium canadense L. var. occidentale (A.Gray) E.M.McClint. & Epling*+
        American germander, western germander, wood sage
             Teucrium boreale E.P.Bicknell
             Teucrium canadense L. subsp. occidentale
             Teucrium canadense L. subsp. viscidum
             Teucrium canadense L. var. boreale (E.P.Bicknell) Shinners
             Teucrium occidentale A.Gray
             Teucrium occidentale A.Gray subsp. viscidum
             Teucrium occidentale A.Gray var. boreale (E.P.Bicknell) Fernald
    Teucrium canadense L. var. virginicum (L.) Eaton+
        American germander, Virginia germander, wood sage
  Genus: Trichostema
    Trichostema brachiatum L.*+
        false-pennyroyal, fluxweed
             Isanthus brachiatus (L.) Britton, Sterns & Poggenb.
             Isanthus brachiatus (L.) Britton, Sterns & Poggenb. var. linearis Fassett
             Isanthus coeruleus Michx.
             Tetraclea viscida Lundell
Family: Lemnaceae
  Genus: Lemna
    Lemna minor L.*+
        common duckweed, lesser duckweed, small duckweed
             Lemna cyclostasa Elliott ex Schleid.
    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
Family: Lentibulariaceae
  Genus: Utricularia
    Utricularia cornuta Michx.*+
        horned bladderwort, naked bladderwort
             Stomoisia cornuta (Michx.) Raf.
    Utricularia gibba L.*+
        creeping bladderwort, humped bladderwort
             Utricularia biflora Lam.
             Utricularia gibba L. subsp. gibba
             Utricularia obtusa Sw.
             Utricularia pumila Walter
    Utricularia intermedia Hayne*+
        flat-leaved bladderwort, northern bladderwort
    Utricularia minor L.*+
        lesser bladderwort, small bladderwort
    Utricularia vulgaris L.*+
        Common bladderwort, great bladderwort
             Utricularia macrorhiza Leconte
             Utricularia vulgaris L. subsp. macrorhiza
             Utricularia vulgaris L. var. americana A.Gray
Family: Liliaceae
  Genus: Allium
    Allium tricoccum Sol.*+
        ramp, wild leek
    Allium tricoccum Sol. var. tricoccum *+
        ramp, wild leek
             Allium pictum Moldenke
             Allium triflorum Raf.
             Ophioscorodon tricoccum (Sol.) Wallr.
             Validallium tricoccum (Sol.) Small
  Genus: Erythronium
    Erythronium albidum Nutt.*+
        small white fawn-lily, white dog-tooth violet, white trout-lily
    Erythronium americanum Ker Gawl. subsp. americanum*+
        American trout-lily, yellow dog-tooth violet, yellow trout-lily
             Erythronium americanum Ker Gawl. f. bachii (Farw.) Dole
  Genus: Hemerocallis
    Hemerocallis fulva (L.) L.*+
        orange daylily, tawny daylily
             Hemerocallis fulva (L.) L. var. fulva
             Hemerocallis lilioasphodelus L. var. fulva L.
  Genus: 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.
    Lilium philadelphicum L.*+
        orange-cup lily, wood lily
             Lilium andinum Nutt.
             Lilium montanum A.Nelson
             Lilium philadelphicum L. var. andinum (Nutt.) Ker Gawl.
             Lilium philadelphicum L. var. montanum (A.Nelson) Wherry
             Lilium philadelphicum L. var. philadelphicum
             Lilium umbellatum Pursh
  Genus: Maianthemum
    Maianthemum canadense Desf.*+
        Canada bead-ruby, Canada mayflower, wild lily-of-the-valley
    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: Medeola
    Medeola virginiana L.*+
        Indian cucumber-root
  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 cernuum L.*+
        nodding trillium, whip-poor-will flower
             Trillium cernuum L. var. cernuum
             Trillium cernuum L. var. macranthum A.J.Eames & Wiegand
    Trillium grandiflorum (Michx.) Salisb.*+
        big white trillium, great white trillium, large-flowered trillium, snow trillium, white trillium, white wake-robin
             Trillium erythrocarpum Curtis 1805, not Michx. 1803
             Trillium rhomboideum Michx. var. grandiflorum Michx.
    Trillium recurvatum Beck*+
        bloody butcher, bloody noses, prairie trillium, red trillium, reflexed trillium, toadshade
  Genus: Uvularia
    Uvularia grandiflora Sm.*+
        large-flowered bellwort
    Uvularia sessilifolia L.*+
        sessile bellwort, sessile-leaved bellwort, straw-lily, wild-oats
             Oakesiella sessilifolia (L.) Small
             Oakesia sessilifolia (L.) S.Watson
Family: Lobeliaceae
  Genus: Lobelia
    Lobelia cardinalis L. var. cardinalis *+
        cardinal-flower
    Lobelia inflata L.*+
        Indian-tobacco
    Lobelia siphilitica L. var. siphilitica +
        great blue lobelia
             Lobelia siphilitica L. f. albiflora Britton
    Lobelia spicata Lam. var. spicata +
        pale-spike lobelia, spiked lobelia
             Lobelia bracteata Small
             Lobelia spicata Lam. var. campanulata McVaugh
             Lobelia spicata Lam. var. originalis McVaugh
             Lobelia spicata Lam. var. parviflora A.Gray
Family: Lycopodiaceae
  Genus: Diphasiastrum
    Diphasiastrum digitatum (Dill. ex A.Braun) Holub*+
        crowfoot club-moss, southern ground-cedar, southern running-pine, trailing ground-pine
             Lycopodium complanatum L. var. flabelliforme Fernald
             Lycopodium digitatum Dill. ex A.Braun
             Lycopodium flabelliforme (Fernald) Blanch.
             Lycopodium flabelliforme (Fernald) Blanch. var. ambiguum Vict.
    Diphasiastrum tristachyum (Pursh) Holub*+
        blue ground-cedar, ground-cedar club-moss, northern ground-pine
             Diphasium chamicyparissus (A.Braun) A.Löve & D.Löve
             Diphasium complanatum (L.) Rothm. subsp. chamicyparissus
             Diphasium tristachyum (Pursh) Rothm.
             Lycopodium chamicyparissus A.Braun
             Lycopodium complanatum L. subsp. chamicyparissus
             Lycopodium complanatum L. var. chamicyparissus (A.Braun) Döll
             Lycopodium complanatum L. var. patentifolium Spring
             Lycopodium tristachyum Pursh
  Genus: Huperzia
    Huperzia lucidula (Michx.) Trevis.*+
        shining club-moss, shining fir-moss
             Lycopodium lucidulum Michx.
             Lycopodium reflexum Sw., non Lam.
             Urostachys lucidulus (Michx.) Herter ex Nessel
  Genus: Lycopodiella
    Lycopodiella inundata (L.) Holub*+
        bog club-moss, marsh club-moss, northern bog club-moss
             Lepidotis inundata (L.) Börner
             Lycopodium inundatum L.
  Genus: Lycopodium
    Lycopodium annotinum L.*+
        common club-moss, bristly club-moss, stiff club-moss
             Lycopodium annotinum L. f. proliferum Lepage
             Lycopodium annotinum L. subsp. pungens
             Lycopodium annotinum L. var. acrifolium Fernald
             Lycopodium annotinum L. var. annotinum
             Lycopodium annotinum L. var. pungens (Bach.Pyl.) Desv.
             Lycopodium dubium Zoëga
    Lycopodium clavatum L.*+
        running club-moss, running ground-pine, running-pine, staghorn club-moss
             Lycopodium clavatum L. var. clavatum
             Lycopodium clavatum L. var. laurentianum Vict.
             Lycopodium clavatum L. var. subremotum Vict.
             Lycopodium clavatum L. var. tristachyum Hook.
    Lycopodium dendroideum Michx.*+
        northern tree club-moss, round-branched club-moss
             Lycopodium obscurum L. var. dendroideum (Michx.) D.C.Eaton
             Lycopodium obscurum L. var. hybridum Farw.
    Lycopodium obscurum L.*+
        flat-branched ground-pine, princess'-pine, rare club-moss
             Lycopodium obscurum L. var. obscurum
Family: Lythraceae
  Genus: Lythrum
    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: Malva
    Malva neglecta Wallr.*+
        cheeses, common mallow
             Malva rotundifolia auct. non L.
Family: Menispermaceae
  Genus: Menispermum
    Menispermum canadense L.*+
        Canadian moonseed, common moonseed
Family: Menyanthaceae
  Genus: Menyanthes
    Menyanthes trifoliata L.*+
        bogbean, common buckbean
             Menyanthes trifoliata L. var. minor Raf.
Family: Molluginaceae
  Genus: Mollugo
    Mollugo verticillata L.*+
        carpetweed, green carpetweed, Indian chickweed
             Mollugo berteriana Ser.
Family: Monotropaceae
  Genus: Monotropa
    Monotropa uniflora L.*+
        Indian-pipe
             Monotropa brittonii Small
Family: Myricaceae
  Genus: Comptonia
    Comptonia peregrina (L.) J.M.Coult.*+
        sweet-fern
             Comptonia ceterach Mirb.
             Comptonia peregrina (L.) J.M.Coult. var. asplenifolia (L.) Fernald
             Comptonia peregrina (L.) J.M.Coult. var. tomentosa A.Chev.
             Liquidambar peregrina L.
             Myrica asplenifolia L.
             Myrica asplenifolia L. var. tomentosa (A.Chev.) Gleason
             Myrica comptonia C.DC.
             Myrica peregrina (L.) Kuntze
Family: Najadaceae
  Genus: Najas
    Najas flexilis (Willd.) Rostk. & W.L.E.Schmidt*+
        nodding water-nymph, northern water-nymph, slender naiad
             Caulinia flexilis Willd.
             Fluvialis flexilis (Willd.) Pers.
             Najas caespitosus (Maguire) Reveal
             Najas canadensis Michx.
             Najas flexilis (Willd.) Rostk. & W.L.E.Schmidt subsp. caespitosus
             Najas flexilis (Willd.) Rostk. & W.L.E.Schmidt var. congesta Farw.
             Najas flexilis (Willd.) Rostk. & W.L.E.Schmidt var. robusta Morong
    Najas guadalupensis (Spreng.) Magnus subsp. olivacea+
        Guadalupe water-nymph, southern naiad, southern water-nymph
             Najas guadalupensis (Spreng.) Magnus var. olivacea (Rosend. & Butters) R.R.Haynes
             Najas olivacea Rosend. & Butters
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 subsp. tuberosa*+
        American white water-lily, white water-lily
             Castalia tuberosa (Paine) Greene
             Nymphaea tuberosa Paine
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
  Genus: Syringa
    Syringa vulgaris L.*+
        common lilac
Family: Onagraceae
  Genus: Circaea
    Circaea alpina L. subsp. alpina*+
        alpine enchanter's-nightshade, northern enchanter's-nightshade, small enchanter's-nightshade
             Circaea alpina L. var. alpina
    Circaea lutetiana L. subsp. canadensis*+
        broad-leaf enchanter's-nightshade
             Circaea canadensis (L.) Hill
             Circaea canadensis (L.) Hill var. virginiana Fernald
             Circaea latifolia Hill
             Circaea lutetiana L. var. canadensis L.
             Circaea quadrisulcata (Maxim.) Franch. & Sav. subsp. canadensis
             Circaea quadrisulcata (Maxim.) Franch. & Sav. var. canadensis (L.) Hara
  Genus: Epilobium
    Epilobium angustifolium L. subsp. circumvagum*+
        fireweed, great willow-herb
             Epilobium angustifolium L. f. albiflorum (Dumort.) Hausskn.
             Epilobium angustifolium L. var. canescens A.W.Wood
    Epilobium coloratum Biehler*+
        cinnamon willow-herb, eastern willow-herb
    Epilobium 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 dissectum Spreng.*+
        cut-leaved grape fern, dissected grape fern, lace-frond grape fern
             Botrychium dissectum Spreng. f. dissectum
             Botrychium dissectum Spreng. f. elongatum (Gilbert & Haberer) Weath.
             Botrychium dissectum Spreng. f. obliquum (Muhl. ex Willd.) Fernald
             Botrychium dissectum Spreng. var. dissectum
             Botrychium dissectum Spreng. var. obliquum (Muhl. ex Willd.) Clute
             Botrychium dissectum Spreng. var. oblongifolium (E.W.Graves) M.Broun
             Botrychium obliquum Muhl. ex Willd.
             Botrychium obliquum Muhl. ex Willd. var. dissectum (Spreng.) Prantl
             Botrychium obliquum Muhl. ex Willd. var. elongatum Gilbert & Haberer
    Botrychium oneidense (Gilbert) House*+
        blunt-lobed grape fern, Oneida grape fern
             Botrychium dissectum Spreng. f. oneidense (Gilbert) Clute
             Botrychium dissectum Spreng. var. oneidense (Gilbert) Farw.
             Botrychium multifidum (S.G.Gmel.) Rupr. var. oneidense (Gilbert) Farw.
             Botrychium obliquum Muhl. ex Willd. var. oneidense (Gilbert) Waters
             Botrychium ternatum (Thunb.) Sw. var. oneidense Gilbert
Family: Orchidaceae
  Genus: Aplectrum
    Aplectrum hyemale (Muhl. ex Willd.) Torr.*+
        Adam-and-Eve, putty-root
             Aplectrum spicatum Britton, Sterns & Poggenb.
             Cymbidium hyemale Muhl. ex Willd.
  Genus: 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
    Cypripedium arietinum R.Br.*+
        ram's-head, ram's-head lady's-slipper
             Criosanthes arietina (R.Br.) House
    Cypripedium parviflorum Salisb. var. pubescens (Willd.) O.W.Knight*+
        large yellow lady's-slipper
             Cypripedium calceolus L. var. planipetalum (Fernald) Vict. & J.Rousseau
             Cypripedium calceolus L. var. pubescens (Willd.) Correll
             Cypripedium flavescens DC.
             Cypripedium parviflorum Salisb. var. planipetalum Fernald
             Cypripedium planipetalum (Fernald) F.Morris & E.A.Eames
             Cypripedium pubescens Willd.
             Cypripedium veganum Cockerell, P.Barker & M.Barker
    Cypripedium reginae Walter*+
        queen lady's-slipper, showy lady's-slipper
             Cypripedium hirsutum Mill.
             Cypripedium reginae Walter f. albolabium Fernald & B.G.Schub.
             Cypripedium reginae Walter f. reginae
             Cypripedium spectabile Salisb.
  Genus: Goodyera
    Goodyera pubescens (Willd.) R.Br.*+
        downy rattlesnake-plantain
             Epipactis pubescens (Willd.) A.A.Eaton
             Neottia pubescens Willd.
             Peramium pubescens (Willd.) MacMill.
  Genus: Listera
    Listera cordata (L.) R.Br. var. cordata *+
        heart-leaf twayblade
             Bifolium cordatum (L.) Nieuwl.
             Diphryllum cordatum (L.) Kuntze
             Neottia cordata (L.) Rich.
             Ophrys cordata L.