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WISFLORA: Vascular Plant Species

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County: Iron

Family: Aceraceae
  Genus: Acer
    Acer platanoides L.*+
        Norway maple
             Acer platanoides L. var. schwedleri Nichols.
    Acer rubrum L. var. rubrum *+
        red maple
             Acer rubrum L. f. tomentosum (Desf.) Dans.
             Acer rubrum L. var. tomentosum Tausch
             Acer stenocarpum Britton
             Rufacer rubrum (L.) Small
    Acer 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: Acoraceae
  Genus: Acorus
    Acorus americanus (Raf.) Raf.*
        sweet-flag
             Acorus calamus auct. non L.
             Acorus calamus L. var. americanus (Raf.) H.Wulff
             Acorus calamus L. var. americanus Raf.
    Acorus calamus L.*+
        sweet-flag
             Acorus americanus auct. non (Raf.) Raf.
             Acorus calamus L. var. americanus auct. non (Raf.) Raf.
Family: Agavaceae
Family: Alismataceae
  Genus: Alisma
    Alisma triviale Pursh*+
        northern water-plantain
             Alisma brevipes Greene
             Alisma plantago-aquatica L. subsp. brevipes
             Alisma plantago-aquatica L. var. americanum Schult.
             Alisma plantago-aquatica L. var. brevipes (Greene) Vict.
  Genus: Sagittaria
    Sagittaria cuneata E.Sheld.*+
        arum-leaved arrowhead, northern arrowhead, wapato
             Sagittaria arifolia Nutt. ex J.G.Sm.
    Sagittaria 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
Family: Anacardiaceae
  Genus: Rhus
    Rhus hirta (L.) Sudw.*+
        staghorn sumac, velvet sumac
             Datisca hirta L.
             Rhus typhina L.
             Rhus typhina L. f. dissecta Rehder
             Rhus typhina L. var. laciniata A.W.Wood
  Genus: Toxicodendron
    Toxicodendron rydbergii (Small ex Rydb.) Greene*+
        Rydberg's poison-ivy, western poison-ivy
             Rhus radicans L. var. rydbergii (Small ex Rydb.) Rehder
             Rhus radicans L. var. vulgaris (Michx.) DC.
             Rhus rydbergii Small ex Rydb. (pro parte)
             Rhus toxicodendron L. var. vulgaris Michx.
             Toxicodendron desertorum Lunell
             Toxicodendron fothergilloides Lunell
             Toxicodendron radicans (L.) Kuntze var. rydbergii (Small ex Rydb.) Erskine
Family: Apiaceae
  Genus: Anethum
    Anethum graveolens L.*+
        dill
  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: Heracleum
    Heracleum lanatum Michx.*+
        American cow-parsnip
             Heracleum maximum W.Bartram
             Heracleum sphondylium L. subsp. montanum
             Heracleum sphondylium L. var. lanatum (Michx.) Dorn
    Heracleum mantegazzianum Sommier & Levier
        giant hogweed
  Genus: Hydrocotyle
    Hydrocotyle americana L.*+
        American marsh pennywort, marsh pennywort
  Genus: Osmorhiza
    Osmorhiza berteroi DC.*+
        Chilean sweet cicely, tapering sweet-root
             Osmorhiza chilensis Hook. & Arn.
             Osmorhiza divaricata (Britton) Suksd.
             Osmorhiza nuda Torr.
             Washingtonia divaricata Britton
    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
  Genus: Sium
    Sium suave Walter*+
        hemlock water-parsnip, water-parsnip
             Sium cicutaefolium Schrank
             Sium floridanum Small
             Sium suave Walter var. floridanum (Small) C.F.Reed
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
  Genus: Vinca
    Vinca minor L.*+
        greater periwinkle, periwinkle, running-myrtle
Family: Aquifoliaceae
  Genus: Ilex
    Ilex mucronata (L.) M.Powell, V.Savolainen & S.Andrews*+
        cat-berry, mountain holly
             Nemopanthus mucronatus (L.) Loes.
             Vaccinium mucronatum L.
    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 incarnata L. subsp. incarnata*+
        swamp milkweed
             Asclepias incarnata L. var. incarnata
    Asclepias syriaca L.*+
        common milkweed, silkweed
             Asclepias intermedia Vail
             Asclepias kansana Vail
             Asclepias syriaca L. var. kansana (Vail) E.J.Palmer & Steyerm.
Family: Aspleniaceae
  Genus: Asplenium
    Asplenium trichomanes L.*+
        maidenhair spleenwort
    Asplenium trichomanes L. subsp. quadrivalens+
        maidenhair spleenwort
    Asplenium trichomanes L. subsp. trichomanes+
        maidenhair spleenwort
             Asplenium melanocaulon Willd.
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 psilostachya DC.*+
        perennial ragweed, western ragweed
             Ambrosia californica Rydb.
             Ambrosia coronopifolia Torr. & A.Gray
             Ambrosia coronopifolia Torr. & A.Gray var. asperula A.Gray
             Ambrosia coronopifolia Torr. & A.Gray var. gracilis A.Gray
             Ambrosia cumanensis Kunth
             Ambrosia lindheimeriana Scheele
             Ambrosia psilostachya DC. var. californica (Rydb.) S.F.Blake
             Ambrosia psilostachya DC. var. coronopifolia (Torr. & A.Gray) Farw. ex Fernald
             Ambrosia psilostachya DC. var. lindheimeriana (Scheele) Blank.
             Ambrosia rugelii Rydb.
    Ambrosia trifida L. var. trifida *+
        giant ragweed, great ragweed, horse-cane
             Ambrosia integrifolia Muhl. ex Willd.
             Ambrosia striata Rydb.
             Ambrosia trifida L. var. integrifolia (Muhl. ex Willd.) Torr. & A.Gray
             Ambrosia variabilis Rydb.
  Genus: Anaphalis
    Anaphalis margaritacea (L.) Benth. & Hook.f.*+
        pearly everlasting, western pearly everlasting
             Anaphalis margaritacea (L.) Benth. & Hook.f. subsp. angustior
             Anaphalis margaritacea (L.) Benth. & Hook.f. var. angustior (Miq.) Nakai
             Anaphalis margaritacea (L.) Benth. & Hook.f. var. intercedens Hara
             Anaphalis margaritacea (L.) Benth. & Hook.f. var. occidentalis Greene
             Anaphalis margaritacea (L.) Benth. & Hook.f. var. revoluta Suksd.
             Anaphalis margaritacea (L.) Benth. & Hook.f. var. subalpina A.Gray
             Anaphalis occidentalis (Greene) Heller
             Antennaria cinnamomea C.B.Clarke var. angustior Miq.
             Gnaphalium margaritaceum L.
  Genus: Antennaria
    Antennaria howellii Greene subsp. canadensis+
        Canadian pussy-toes, Howell's pussy-toes
             Antennaria canadensis Greene
             Antennaria canadensis Greene var. randii Fernald
             Antennaria canadensis Greene var. spathulata Fernald
             Antennaria carpathica Greene
             Antennaria neglecta Greene var. canadensis (Greene) Cronquist
             Antennaria neglecta Greene var. randii (Fernald) Cronquist
             Antennaria neodioica Greene subsp. canadensis
             Antennaria neodioica Greene var. randii (Fernald) B.Boivin
             Antennaria randii Fernald
             Antennaria spathulata (Fernald) Fernald
             Antennaria wiegandii Fernald
    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 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
  Genus: Anthemis
    Anthemis tinctoria L.*+
        golden marguerite, yellow cotula, yellow chamomile
             Cota tinctoria (L.) J.Gay
  Genus: Artemisia
    Artemisia serrata Nutt.*+
        saw-leaf mugwort, saw-toothed sagebrush, saw-tooth wormwood, toothed sage
  Genus: Aster
    Aster borealis (Torr. & A.Gray) Prov.*+
        northern bog aster, rush aster
             Aster franklinianus Rydb.
             Aster junceus auct. non Aiton
             Aster junciformis Rydb.
             Aster laxifolius Lindl. var. borealis Torr. & A.Gray
             Aster laxifolius Nees var. laetiflorus Torr. & A.Gray
             Symphyotrichum boreale (Torr. & A.Gray) A.Löve & D.Löve
    Aster 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 lanceolatus Willd. var. lanceolatus +
        eastern lined aster, marsh aster, panicled aster, white panicle aster
             Aster bellidiflorus Willd.
             Aster lamarckianus Nees
             Aster lanceolatus Willd. subsp. lanceolatus
             Aster lanceolatus Willd. var. lanceolatus subsp. lanceolatus
             Aster laxus Willd.
             Aster paniculatus Lam.
             Aster paniculatus Lam. var. bellidiflorus (Willd.) E.S.Burgess
             Aster simplex Willd. var. estuarinus B.Boivin
             Aster simplex Willd. var. ramosissimus (Torr. & A.Gray) Cronquist
             Aster tenuifolius sensu Torr. & A.Gray var. ramosissimus Torr. & A.Gray
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom subsp. lanceolatum
             Symphyotrichum lanceolatum (Willd.) G.L.Nesom var. lanceolatum subsp. lanceolatum
    Aster lanceolatus Willd. var. simplex (Willd.) A.G.Jones+
        branched panicled aster, panicled aster, white panicle aster
             Aster lanceolatus Willd. subsp. simplex
             Aster paniculatus Lam. var. simplex (Willd.) E.S.Burgess
             Aster simplex Willd.
             Symphyotrichum simplex (Willd.) A.Löve & D.Löve
    Aster lateriflorus (L.) Britton*+
        calico aster, goblet aster, side-flowering aster
             Aster lateriflorus (L.) Britton var. glomerellus (Torr. & A.Gray) E.S.Burgess
             Aster miser L. var. glomerellus Torr. & A.Gray
    Aster lateriflorus (L.) Britton var. 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 pilosus Willd. var. pringlei (A.Gray) S.F.Blake*+
        awl aster, frost aster, hairy aster, Pringle's aster, white old-field aster
             Aster ericoides L. var. pringlei A.Gray
             Aster faxonii Porter
             Aster pilosus Willd. var. demotus S.F.Blake
             Aster polyphyllus Willd., non Moench
             Aster pringlei (A.Gray) Britton
             Symphyotrichum pilosum (Willd.) G.L.Nesom var. pringlei (A.Gray) G.L.Nesom
    Aster praealtus Poir. var. coerulescens (DC.) A.G.Jones+
        veiny lined aster, willow aster, willow-leaved aster
             Aster coerulescens DC.
             Aster praealtus Poir. var. texicola Wiegand
             Symphyotrichum praealtum (Poir.) G.L.Nesom var. texicola (Wiegand) G.L.Nesom
    Aster prenanthoides Muhl. ex Willd.*+
        crooked aster, crooked-stem aster, zigzag aster
             Aster prenanthoides Muhl. ex Willd. f. milwaukeensis Benke
             Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom
    Aster puniceus L.*+
        bristly aster, purple-stem aster, swamp aster
             Aster conduplicatus E.S.Burgess
             Aster forwoodii S.Watson
             Aster puniceus L. f. albiflorus (Farw.) Shinners
             Aster puniceus L. f. colbyi (Benke) Shinners
             Aster puniceus L. f. glabratus Shinners
             Aster puniceus L. var. albiflorus Farw.
             Aster puniceus L. var. calvus Shinners
             Aster puniceus L. var. colbyi Benke
             Aster puniceus L. var. compactus Fernald
             Aster puniceus L. var. demissus Lindl.
             Aster puniceus L. var. monocephalus Farw.
             Aster puniceus L. var. oligocephalus Fernald
             Aster puniceus L. var. puniceus
             Symphyotrichum puniceum (L.) A.Löve & D.Löve
             Symphyotrichum puniceum (L.) A.Löve & D.Löve var. puniceum
    Aster umbellatus Mill. var. pubens A.Gray+
        hairy flat-top aster, parasol aster
             Aster pubentior Cronquist
             Aster sericocarpoides (Small) K.Schum.
             Aster umbellatus Mill. var. latifolius A.Gray
             Doellingeria pubens (A.Gray) Rydb.
             Doellingeria sericocarpoides Small
             Doellingeria umbellata (Mill.) Nees subsp. pubens
             Doellingeria umbellata (Mill.) Nees var. latifolia (A.Gray) House
             Doellingeria umbellata (Mill.) Nees var. pubens (A.Gray) Britton
  Genus: Bidens
    Bidens cernuus L.*+
        nodding beggar-ticks, nodding bur-marigold
             Bidens cernuus L. f. discoideus (Wimm. & Grab.) Briq. & Cavill.
             Bidens cernuus L. f. minimus (Huds.) Larss.
             Bidens cernuus L. var. dentatus (Nutt.) B.Boivin
             Bidens cernuus L. var. ellipticus Wiegand
             Bidens cernuus L. var. integrus Wiegand
             Bidens cernuus L. var. minimus (Huds.) Pursh
             Bidens cernuus L. var. oligodontus Fernald & H.St.John
             Bidens cernuus L. var. radiatus DC.
             Bidens glaucescens Greene
             Bidens minimus Huds.
    Bidens 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
  Genus: Centaurea
    Centaurea biebersteinii DC.*+
        spotted knapweed
             Acosta maculosa auct. non Holub
             Centaurea maculosa auct. non Lam.
    Centaurea jacea L.*+
        brown knapweed, brown-ray knapweed
  Genus: Cirsium
    Cirsium muticum Michx.*+
        swamp thistle
             Carduus muticus (Michx.) Pers.
             Cirsium bigelovii DC.
             Cirsium muticum Michx. f. lactiflorum Fernald
             Cirsium muticum Michx. var. monticola Fernald
             Cirsium muticum Michx. var. subpinnatifidum (Britton) Fernald
    Cirsium palustre (L.) Scop.*+
        European swamp thistle, marsh thistle
             Cnicus palustris (L.) Willd.
    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: Echinacea
    Echinacea purpurea (L.) Moench*+
        broad-leaved purple coneflower, eastern purple coneflower
             Brauneria purpurea (L.) Britton
             Echinacea purpurea (L.) Moench var. arkansana Steyerm.
             Rudbeckia purpurea L.
  Genus: Erigeron
    Erigeron annuus (L.) Pers.*+
        annual fleabane, eastern daisy fleabane
             Erigeron annuus (L.) Pers. f. discoideus Vict. & J.Rousseau
             Erigeron annuus (L.) Pers. var. discoideus (Vict. & J.Rousseau) Cronquist
    Erigeron philadelphicus L.*+
        common fleabane, marsh fleabane, Philadelphia daisy
    Erigeron strigosus Muhl. ex Willd.*+
        daisy fleabane, prairie fleabane, rough fleabane
    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. var. maculatum subsp. maculatum+
        spotted Joe-Pye-weed
             Eupatorium maculatum L. var. maculatum
             Eupatoriadelphus maculatus (L.) R.M.King & H.Rob.
    Eupatorium perfoliatum L. var. perfoliatum *+
        boneset, common boneset, thoroughwort
             Eupatorium perfoliatum L. f. perfoliatum
             Eupatorium perfoliatum L. f. purpureum Britton
             Eupatorium perfoliatum L. f. trifolium Fassett
             Eupatorium perfoliatum L. f. truncatum (Muhl. ex Willd.) Fassett
    Eupatorium purpureum L.*+
        green-stemmed Joe-Pye-weed, purple Joe-Pye-weed
             Eupatorium falcatum Michx.
             Eupatorium holzingeri Rydb.
             Eupatoriadelphus purpureus (L.) R.M.King & H.Rob.
             Eupatorium purpureum L. var. holzingeri (Rydb.) E.Lamont
             Eupatorium purpureum L. var. purpureum
    Eupatorium rugosum Houtt. var. rugosum *+
        white snakeroot
             Ageratina altissima (L.) R.M.King & H.Rob.
             Ageratum altissimum L., non Eupatorium altissimum L.
             Ageratina altissima (L.) R.M.King & H.Rob. var. altissima
             Eupatorium rugosum Houtt. var. chlorolepis Fernald
             Eupatorium rugosum Houtt. var. tomentellum (B.L.Rob.) S.F.Blake
             Eupatorium rugosum Houtt. var. villicaule (Fernald) S.F.Blake
             Eupatorium urticaefolium Reichard
             Eupatorium urticaefolium Reichard var. tomentellum B.L.Rob.
  Genus: Euthamia
    Euthamia graminifolia (L.) Nutt. var. graminifolia *+
        common flat-topped goldenrod, grass-leaved goldenrod
             Chrysocoma graminifolia L.
             Euthamia floribunda Greene
             Euthamia graminifolia (L.) Nutt. var. nuttallii (Greene) W.Stone
             Euthamia nuttallii Greene
             Solidago graminifolia (L.) Salisb.
             Solidago graminifolia (L.) Salisb. var. graminifolia
             Solidago graminifolia (L.) Salisb. var. nuttallii (Greene) Fernald
             Solidago graminifolia (L.) Salisb. var. polycephala (Fernald) Fernald
             Solidago graminifolia (L.) Salisb. var. typica Rosend. & Cronquist
             Solidago hirtella (Greene) Bush
             Solidago nuttallii (Greene) Bush
             Solidago polycephala Fernald
  Genus: Gnaphalium
    Gnaphalium uliginosum L.*+
        low cudweed, marsh cudweed
             Filaginella uliginosa (L.) Opiz
  Genus: Helenium
    Helenium autumnale L. var. autumnale *+
        common sneezeweed
             Helenium altissimum Link
             Helenium autumnale L. var. canaliculatum (Lam.) Torr. & A.Gray
             Helenium canaliculatum Lam.
             Helenium latifolium Mill.
  Genus: Helianthus
    Helianthus giganteus L.*+
        giant sunflower, swamp sunflower, tall sunflower
             Helianthus alienus E.Watson
             Helianthus borealis E.Watson
             Helianthus exasperatus E.Watson
             Helianthus giganteus L. subsp. alienus
             Helianthus giganteus L. var. subtuberosus Britton
             Helianthus membranaceus E.Watson
             Helianthus nuttallii Torr. & A.Gray var. subtuberosus (Britton) B.Boivin
             Helianthus subtuberosus (Britton) Britton
             Helianthus validus E.Watson
  Genus: Heliopsis
    Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald+
        false sunflower, ox-eye, sunflower-everlasting
             Heliopsis helianthoides (L.) Sweet subsp. occidentalis
             Heliopsis helianthoides (L.) Sweet subsp. scabra
             Heliopsis helianthoides (L.) Sweet var. occidentalis (T.R.Fisher) Steyerm.
             Heliopsis minor (Hook.) C.Mohr
             Heliopsis scabra Dunal
  Genus: Hieracium
    Hieracium aurantiacum L.*+
        devil's-paintbrush, grim-the-collier, orange hawkweed, red daisy
    Hieracium kalmii L.*+
        Canada hawkweed, Kalm's hawkweed
             Hieracium canadense Michx.
             Hieracium canadense Michx. var. canadense
             Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
             Hieracium columbianum Rydb.
             Hieracium kalmii L. var. fasciculatum (Pursh) Lepage
             Hieracium kalmii L. var. kalmii
             Hieracium kalmii L. var. subintegrum (Lepage) Lepage
             Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage
             Hieracium umbellatum L. var. canadense (Michx.) Breitung
             Hieracium umbellatum L. var. scabriusculum Farw.
    Hieracium piloselloides Vill.*+
        glaucous king-devil, tall hawkweed
             Hieracium florentinum All.
    Hieracium scabrum Michx.*+
        rough hawkweed, sticky hawkweed
             Hieracium scabrum Michx. var. scabrum
             Hieracium scabrum Michx. var. tonsum Fernald & H.St.John
  Genus: Hypochaeris
    Hypochaeris radicata L.*+
        false dandelion, hairy cat's-ear, spotted cat's-ear
  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: Leontodon
    Leontodon taraxacoides (Vill.) Mérat*+
        little hawk's-bit, rough hawk's-bit
             Leontodon leysseri (Wallr.) Beck
             Leontodon nudicaulis (L.) Banks ex Schinz subsp. taraxacoides
  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: 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: Megalodonta
    Megalodonta beckii (Torr. ex Spreng.) Greene*+
        water beggar-ticks, water-marigold
             Bidens beckii Torr. ex Spreng.
  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: Petasites
    Petasites frigidus (L.) Fr. var. palmatus (Aiton) Cronquist*+
        Arctic sweet-colt's-foot, northern sweet-colt's-foot
             Nardosmia arctica (Porsild) A.Löve & D.Löve
             Petasites frigidus (L.) Fr. subsp. palmatus
             Petasites arcticus Porsild
             Petasites frigidus (L.) Fr. subsp. arcticus
             Petasites hookerianus (Nutt.) Rydb.
             Petasites palmatus (Aiton) A.Gray
             Petasites speciosus (Nutt.) Piper
             Tussilago palmata Aiton
  Genus: Prenanthes
    Prenanthes alba L.*+
        lion's-foot, rattlesnake-root, white-lettuce
             Nabalus albus (L.) Hook.
  Genus: Ratibida
    Ratibida pinnata (Vent.) Barnhart*+
        globular coneflower, yellow coneflower
             Lepachys pinnata (Vent.) Torr. & A.Gray
             Rudbeckia pinnata Vent.
  Genus: Rudbeckia
    Rudbeckia hirta L. var. pulcherrima Farw.*+
        black-eyed Susan
             Rudbeckia bicolor Nutt.
             Rudbeckia hirta L. var. corymbifera Fernald
             Rudbeckia hirta L. var. lanceolata (Bisch.) Core
             Rudbeckia hirta L. var. sericea (T.V.Moore) Fernald
             Rudbeckia hirta L. var. serotina (Nutt.) Core
             Rudbeckia lanceolata Bisch.
             Rudbeckia longipes T.V.Moore
             Rudbeckia serotina Nutt.
             Rudbeckia sericea T.V.Moore
             Rudbeckia serotina Nutt. var. corymbifera (Fernald) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. lanceolata (Bisch.) Fernald & B.G.Schub.
             Rudbeckia serotina Nutt. var. sericea (T.V.Moore) Fernald & B.G.Schub.
    Rudbeckia laciniata L. var. laciniata +
        cut-leaved coneflower, wild golden-glow
  Genus: Senecio
    Senecio sylvaticus L.+
        wood groundsel, woodland ragwort
  Genus: Solidago
    Solidago canadensis L. var. canadensis *+
        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. salebrosa (Piper) M.E.Jones+
        Canadian goldenrod, salebrosa goldenrod
             Solidago canadensis L. subsp. elongata
             Solidago canadensis L. subsp. salebrosa
             Solidago canadensis L. var. elongata (Nutt.) M.Peck
             Solidago elongata Nutt.
             Solidago lepida DC. var. elongata (Nutt.) Fernald
             Solidago lepida DC. var. fallax Fernald
             Solidago serotina Aiton var. salebrosa Piper
    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 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 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 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
  Genus: Tanacetum
    Tanacetum vulgare L.*+
        common tansy, golden-buttons, tansy
             Chrysanthemum vulgare (L.) Bernh.
             Tanacetum vulgare L. f. crispum (L.) Fernald
             Tanacetum vulgare L. var. crispum L.
  Genus: Taraxacum
    Taraxacum officinale Weber*+
        common dandelion
Family: Balsaminaceae
  Genus: Impatiens
    Impatiens capensis Meerb.*+
        orange jewelweed, orange touch-me-not, spotted touch-me-not
             Impatiens biflora Walter
             Impatiens capensis Meerb. f. immaculata (Weath.) Fernald & B.G.Schub.
             Impatiens fulva Nutt.
             Impatiens noli-tangere L. subsp. biflora
             Impatiens nortonii Rydb.
Family: Berberidaceae
  Genus: Caulophyllum
    Caulophyllum thalictroides (L.) Michx.*+
        blue cohosh, papoose-root, squaw-root
             Caulophyllum thalictroides (L.) Michx. var. thalictroides
             Leontice thalictroides L.
Family: Betulaceae
  Genus: Alnus
    Alnus incana (L.) Moench subsp. rugosa*+
        mountain alder, speckled alder, swamp alder
             Alnus glauca Michx.
             Alnus incana (L.) Moench f. tomophylla Fernald
             Alnus incana (L.) Moench var. americana Regel
             Alnus rugosa (Du Roi) Spreng.
             Alnus rugosa (Du Roi) Spreng. var. americana (Regel) Fernald
             Alnus rugosa (Du Roi) Spreng. var. tomophylla (Fernald) Fernald
             Betula alnus L. var. rugosa Du Roi
  Genus: Betula
    Betula 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 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: 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
Family: Boraginaceae
  Genus: Cynoglossum
    Cynoglossum boreale Fernald*+
        northern wild comfrey
             Cynoglossum virginianum L. var. boreale (Fernald) Cooperr.
  Genus: Mertensia
    Mertensia paniculata (Aiton) G.Don var. paniculata *+
        northern bluebells, tall lungwort
             Mertensia palmeri A.Nelson & J.F.Macbr.
  Genus: Myosotis
    Myosotis scorpioides L.*+
        common forget-me-not, forget-me-not, true forget-me-not, water scorpion-grass
             Myosotis palustris (L.) Hill
    Myosotis sylvatica Ehrh. ex Hoffm.*+
        garden forget-me-not, woodland forget-me-not
  Genus: Symphytum
    Symphytum officinale L.*+
        common comfrey
             Symphytum officinale L. subsp. uliginosum
             Symphytum uliginosum J.Kern.
Family: Brassicaceae
  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: Cardamine
    Cardamine parviflora L. var. arenicola (Britton) O.E.Schulz*+
        dry-land bitter-cress, sand bitter-cress, small-flowered bitter-cress
             Cardamine arenicola Britton
    Cardamine pensylvanica Muhl. ex Willd.*+
        Pennsylvania bitter-cress
             Cardamine hirsuta L. var. pensylvanica Muhl. ex Willd.
             Cardamine pensylvanica Muhl. ex Willd. var. brittoniana Farw.
  Genus: Lepidium
    Lepidium densiflorum Schrad. var. densiflorum +
        prairie pepper-weed, small peppergrass
             Lepidium apetulum auct. non Willd.
             Lepidium densiflorum Schrad. var. typicum Thell.
             Lepidium neglectum Thell.
             Lepidium texanum Buckley
  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: 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
Family: Cabombaceae
  Genus: Brasenia
    Brasenia schreberi J.F.Gmel.*+
        water-shield
             Brasenia peltata Pursh
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 rotundifolia L.*+
        bluebell, bluebell bellflower, harebell
             Campanula alaskana (A.Gray) W.Wight ex J.P.Anderson
             Campanula dubia A.DC.
             Campanula heterodoxa Bong.
             Campanula intercedens Witasek
             Campanula petiolata A.DC.
             Campanula rotundifolia L. var. alaskana A.Gray
             Campanula rotundifolia L. var. intercedens (Witasek) Farw.
             Campanula rotundifolia L. var. lancifolia Mert. & W.D.J.Koch
             Campanula rotundifolia L. var. petiolata (A.DC.) J.K.Henry
             Campanula rotundifolia L. var. velutina A.DC.
             Campanula sacajaweana M.Peck
Family: 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 hirsuta Eaton*+
        hairy honeysuckle
             Lonicera hirsuta Eaton var. interior Gleason
    Lonicera morrowii A.Gray*+
        Asian fly honeysuckle, Morrow's honeysuckle
    Lonicera tatarica L.*+
        Tartarian honeysuckle
             Lonicera tatarica L. f. albiflora (DC.) House
             Lonicera tatarica L. var. xanthocarpa Endl.
             Xylosteum tataricum (L.) Medik.
    Lonicera villosa (Michx.) Schult.*+
        mountain fly honeysuckle
             Lonicera caerulea L. var. villosa (Michx.) Torr. & A.Gray
    Lonicera X bella Zabel X *+
        showy bush honeysuckle, white-bell honeysuckle
  Genus: Sambucus
    Sambucus canadensis L. var. canadensis *+
        American elder, elderberry
             Sambucus canadensis L. var. laciniata A.Gray
             Sambucus nigra L. subsp. canadensis
    Sambucus racemosa L. var. pubens (Michx.) Koehne subsp. pubens*+
        red elderberry, red-berried elder, scarlet elderberry
             Sambucus pubens Michx.
             Sambucus pubens Michx. f. dissecta (Britton) Schwer.
             Sambucus racemosa L. var. pubens (Michx.) Koehne
  Genus: Symphoricarpos
    Symphoricarpos albus (L.) S.F.Blake var. laevigatus S.F.Blake+
        western snowberry
  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. var. rafinesquianum +
        arrow-wood, downy arrow-wood
             Viburnum affine Bush ex C.K.Schneid. var. hypomalacum S.F.Blake
Family: Caryophyllaceae
  Genus: Agrostemma
    Agrostemma githago L.+
        corn cockle
  Genus: Arenaria
    Arenaria macrophylla Hook.*+
        large-leaved sandwort
             Moehringia macrophylla (Hook.) Fenzl
  Genus: Cerastium
    Cerastium fontanum Baumg. emend Jalas subsp. vulgare*+
        big mouse-ear chickweed, common chickweed, common mouse-ear, mouse-ear chickweed
             Cerastium adsurgens Greene
             Cerastium fontanum Baumg. subsp. holosteoides
             Cerastium fontanum Baumg. subsp. triviale
             Cerastium holosteoides Fr.
             Cerastium holosteoides Fr. var. vulgare (Hartm.) Hyl.
             Cerastium triviale Link
             Cerastium vulgatum L. 1762, non 1755
             Cerastium vulgare Hartm.
             Cerastium vulgatum L. f. glandulosum (Boenn.) Druce var. hirsutum Fr.
             Cerastium vulgatum L. f. hirsutum var. hirsutum Fr.
             Cerastium vulgatum L. var. hirsutum Fr.
             Cerastium vulgatum L. var. holosteoides (Fr.) Wahlenb.
  Genus: Dianthus
    Dianthus armeria L.*+
        Deptford pink
    Dianthus barbatus L.*+
        sweet-William
  Genus: Gypsophila
    Gypsophila muralis L.*+
        cushion baby's-breath, low baby's-breath
             Psammophiliella muralis (L.) Ikonn.
  Genus: Sagina
    Sagina procumbens L.*+
        bird's-eye pearl-wort
             Sagina procumbens L. var. compacta Lange
  Genus: Saponaria
    Saponaria officinalis L.*+
        bouncing-bet, soapwort
             Lychnis saponaria Jess.
  Genus: Silene
    Silene armeria L.*+
        sweet-William catchfly, sweet-William silene
    Silene latifolia Poir. subsp. alba*+
        bladder campion, white campion, white cockle
             Lychnis alba Mill.
             Lychnis pratensis Rafn
             Lychnis vespertina Sibth.
             Lychnis X loveae B.Boivin X
             Melandrium album (Mill.) Garcke
             Silene alba (Mill.) E.H.L.Krause
             Silene pratensis (Rafn) Godr. & Gren.
             Silene pratensis (Rafn) Godr. & Gren. subsp. pratensis
  Genus: Spergularia
    Spergularia rubra (L.) J.Presl & C.Presl*+
        red sand spurry, roadside sand spurry
             Arenaria rubra L.
             Lepigonum rubrum (L.) Wahlenb.
             Lepigonum rubrum (L.) Wahlenb. var. perennans Kindb.
             Spergularia rubra (L.) J.Presl & C.Presl var. perennans (Kindb.) B.L.Rob.
             Tissa rubra (L.) Britton
             Tissa rubra (L.) Britton var. perennans (Kindb.) Greene
  Genus: Stellaria
    Stellaria borealis Bigelow subsp. borealis+
        boreal starwort, northern starwort
             Alsine borealis (Bigelow) Britton
             Spergulastrum lanceolatum Michx.
             Stellaria borealis Bigelow var. borealis
             Stellaria borealis Bigelow var. floribunda Fernald
             Stellaria borealis Bigelow var. isophylla Fernald
             Stellaria calycantha (Ledeb.) Bong. subsp. interior
             Stellaria calycantha (Ledeb.) Bong. var. floribunda (Fernald) Fernald
             Stellaria calycantha (Ledeb.) Bong. var. isophylla (Fernald) Fernald
             Stellaria calycantha (Ledeb.) Bong. var. latifolia B.Boivin
             Stellaria calycantha (Ledeb.) Bong. var. laurentiana Fernald
    Stellaria graminea L.*+
        common stitchwort, grass-like starwort, starwort
             Alsine graminea (L.) Britton
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 capitatum (L.) Ambrosi var. capitatum *+
        blite goosefoot, Indian ink, Indian-paint, strawberry-blite,
             Blitum capitatum L.
Family: Cistaceae
  Genus: Hudsonia
    Hudsonia tomentosa Nutt. var. tomentosa *+
        false heather, woolly beach-heather
Family: Convolvulaceae
  Genus: Calystegia
    Calystegia spithamaea (L.) Pursh*+
        low bindweed, low false bindweed
             Calystegia spithamaea (L.) Pursh subsp. spithamaea
             Calystegia spithamaea (L.) Pursh subsp. stans
             Convolvulus sepium L. var. pubescens (A.Gray) Fernald
             Convolvulus spithamaeus L.
             Convolvulus spithamaeus L. subsp. spithamaeus
             Convolvulus spithamaeus L. subsp. stans
             Convolvulus spithamaeus L. var. pubescens (A.Gray) Fernald
             Convolvulus spithamaeus L. var. stans (Michx.) Fogelberg
             Convolvulus stans Michx.
Family: Cornaceae
  Genus: Cornus
    Cornus alternifolia L.f.*+
        alternate-leaved dogwood, pagoda dogwood
             Swida alternifolia (L.f.) Small
    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 rugosa Lam.*+
        round-leaved dogwood
             Cornus circinata L'Hér.
             Swida rugosa (Lam.) Rydb.
    Cornus stolonifera Michx.*+
        red osier dogwood
             Cornus alba L., pro parte
             Cornus alba L. subsp. stolonifera
             Cornus alba L. var. baileyi (J.M.Coult. & W.H.Evans) B.Boivin
             Cornus alba L. var. californica (C.A.Mey.) B.Boivin
             Cornus alba L. var. interior (Rydb.) B.Boivin
             Cornus baileyi J.M.Coult. & W.H.Evans
             Cornus interior (Rydb.) N.Petersen
             Cornus instolonea A.Nelson
             Cornus sericea L.
             Cornus sericea L. subsp. sericea
             Cornus sericea L. subsp. stolonifera
             Cornus sericea L. var. interior (Rydb.) H.St.John
             Cornus stolonifera Michx. var. baileyi (J.M.Coult. & W.H.Evans) Drescher
             Cornus stolonifera Michx. var. interior (Rydb.) H.St.John
             Cornus X californica C.A.Mey. X
             Swida baileyi (J.M.Coult. & W.H.Evans) Rydb.
             Swida interior Rydb.
             Swida instolonea (A.Nelson) Rydb.
             Swida stolonifera (Michx.) Rydb.
Family: Cucurbitaceae
  Genus: Echinocystis
    Echinocystis lobata (Michx.) Torr. & A.Gray*+
        balsam-apple, wild-cucumber
             Micrampelis lobata (Michx.) Greene
             Sicyos lobata Michx.
Family: Cupressaceae
  Genus: Juniperus
    Juniperus communis L. var. depressa Pursh*+
        common juniper
             Juniperus canadensis Lodd. ex Burgsd.
             Juniperus communis L. subsp. depressa
             Juniperus depressa (Pursh) Raf.
  Genus: Thuja
    Thuja occidentalis L.*+
        eastern arborvitae, northern white-cedar
Family: Cyperaceae
  Genus: Carex
    Carex arcta Boott*+
        bear sedge, northern clustered sedge
             Carex canescens L. var. oregana L.H.Bailey
             Carex canescens L. var. polystachya Boott
             Carex heleonastes L.f. var. scabriuscula Kük.
             Carex kunzei Olney
    Carex arctata Boott*+
        drooping woodland sedge
             Carex arctata Boott var. faxonii L.H.Bailey
    Carex aurea Nutt.*+
        elk sedge, golden sedge, golden-fruited sedge
    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 chordorrhiza Ehrh. ex L.f.*+
        cord-root sedge, creeping sedge
    Carex communis L.H.Bailey var. communis *+
        Colonial oak sedge, fibrous-root sedge
    Carex crawfordii Fernald*+
        Crawford's oval sedge, Crawford's sedge
             Carex crawfordii Fernald var. vigens Fernald
    Carex crinita Lam. var. crinita *+
        fringed sedge
             Carex crinita Lam. var. minor Boott
             Carex crinita Lam. var. morbida J.Carey
             Carex leonura Wahlenb.
    Carex debilis Michx. var. rudgei L.H.Bailey*+
        northern weak sedge, weak sedge, white-edge sedge
             Carex allegheniensis Mack.
             Carex debilis Michx. var. intercursa Fernald
             Carex debilis Michx. var. interjecta L.H.Bailey
             Carex debilis Michx. var. puberua A.Gray
             Carex debilis Michx. var. strictior L.H.Bailey
             Carex flexuosa Muhl. ex Willd.
             Carex tenuis Rudge
    Carex deflexa Hornem. var. deflexa *+
        northern oak sedge, northern sedge
             Carex deflexa Hornem. var. deanei L.H.Bailey
    Carex deweyana Schwein. var. deweyana *+
        Dewey's sedge
             Carex deweyana Schwein. subsp. deweyana
    Carex disperma Dewey*+
        soft-leaf sedge, two-seeded bog sedge
             Carex tenella Schkuhr
    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 foenea Willd.*+
        bronze-headed oval sedge
             Carex aenea Fernald
             Carex foenea Willd. var. foenea
    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 gynandra Schwein.*+
        nodding sedge
             Carex crinita Lam. var. gynandra (Schwein.) Schwein. & Torr.
             Carex crinita Lam. var. simulans Fernald
             Carex gynandra Schwein. var. simulans (Fernald) Roll.-Germ.
    Carex houghtoniana Torr. ex Dewey*+
        Houghton's sedge, Houghton's woolly sedge
             Carex houghtonii auct. non Torr.
    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 leptonervia (Fernald) Fernald*+
        few-nerved wood sedge, nerveless woodland sedge
             Carex laxiflora Lam. var. leptonervia Fernald
             Carex laxiflora Lam. var. varians L.H.Bailey
    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 oligosperma Michx.*+
        few-seeded hop sedge, few-seeded sedge
    Carex pallescens L.*+
        pale green sedge, pale sedge
             Carex pallescens L. var. neogaea Fernald
    Carex pauciflora Lightf.*+
        few-flowered bog sedge, few-flowered sedge, star sedge
    Carex peckii Howe*+
        Peck's oak sedge, Peck's sedge
             Carex albicans auct. non Willd.
             Carex clivicola Fernald & Weath.
             Carex nigromarginata Schwein. var. elliptica (Boott) Gleason
             Carex nigromarginata Schwein. var. minor (Boott) Gleason
    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 projecta Mack.*+
        loose-headed oval sedge, necklace sedge
    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 scabrata Schwein.*+
        eastern rough sedge
    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 stipata Muhl. ex Willd. var. stipata *+
        common fox sedge, owl-fruit sedge
             Carex stipata Muhl. ex Willd. var. crassicurta Peck
             Carex stipata Muhl. ex Willd. var. subsecuta Peck
    Carex stricta Lam.*+
        common tussock sedge, hummock sedge, tussock sedge, uptight sedge
             Carex stricta Lam. var. curtissima Peck
             Carex stricta Lam. var. strictior (Dewey) J.Carey
             Carex stricta Lam. var. stricta
             Carex stricta Lam. var. xerocarpa (S.H.Wright) Britton
             Carex strictior Dewey
             Carex xerocarpa S.H.Wright
    Carex tenera Dewey 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 umbellata Schkuhr ex Willd.*+
        early oak sedge, hidden sedge, parasol sedge
             Carex abdita E.B.Bicknell
             Carex microrhyncha Mack.
             Carex umbellata Schkuhr var. umbellata
    Carex utriculata Boott*+
        common yellow lake sedge, Northwest Territory sedge
             Carex inflata Huds. var. utriculata (Boott) Druce
             Carex laevirostris (Blytt ex Fr.) Fr.
             Carex rhynchosphysa Fisch., C.A.Mey. & Avé-Lall.
             Carex rostrata Stokes var. utriculata (Boott) L.H.Bailey
    Carex 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 woodii Dewey*+
        pretty sedge, Wood's stiff sedge
             Carex colorata Mack.
             Carex tetanica Schkuhr var. woodii (Dewey) A.W.Wood
  Genus: Cladium
    Cladium mariscoides (Muhl.) Torr.*+
        smooth sawgrass, twig-rush
             Mariscus mariscoides (Muhl.) Kuntze
             Schoenus mariscoides Muhl.
  Genus: Cyperus
    Cyperus 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 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
  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 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 ovata (Roth) Roem. & Schult.+
        oval spike-rush
             Eleocharis annua House
             Eleocharis obtusa (Willd.) Schult. var. heuseri Uechtr.
             Eleocharis obtusa (Willd.) Schult. var. ovata (Roth) Drapalik & Mohlenbr.
             Scirpus ovatus Roth
    Eleocharis palustris (L.) Roem. & Schult.*+
        common spike-rush, marsh spike-rush
             Eleocharis calva Torr. var. australis (Nees) H.St.John
             Eleocharis mamillata auct. non H.Lindb.
             Eleocharis palustris (L.) Roem. & Schult. var. australis Nees
             Eleocharis palustris (L.) Roem. & Schult. var. major Sond.
             Eleocharis smallii Britton
             Eleocharis smallii Britton var. major (Sond.) F.Seym.
             Scirpus palustris L.
  Genus: Eriophorum
    Eriophorum angustifolium Honck. subsp. angustifolium*+
        cotton-grass
             Eriophorum angustifolium Honck. var. angustifolium
             Eriophorum polystachion auct. non L.
    Eriophorum chamissonis C.A.Mey.*+
        Chamisso's cotton-grass, russet cotton-grass
             Eriophorum altaicum Meinsh. var. neogeum Raymond
             Eriophorum chamissonis C.A.Mey. f. albidum (F.Nyl.) Fernald
             Eriophorum chamissonis C.A.Mey. f. chamissonis
             Eriophorum chamissonis C.A.Mey. f. turneri Raymond
             Eriophorum chamissonis C.A.Mey. var. aquatile (Norman) Fernald
             Eriophorum rufescens Andersson
             Eriophorum russeolum Fr. f. leucothrix Blomgr.
             Eriophorum russeolum Fr. subsp. rufescens
             Eriophorum russeolum Fr. var. albidum F.Nyl.
             Eriophorum russeolum Fr. var. leucothrix (Blomgr.) Hultén
             Eriophorum russeolum Fr. var. majus Sommier
    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.
  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 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
    Scirpus hattorianus Makino+
        early dark-green bulrush, mosquito bulrush
             Scirpus atrovirens Willd. var. georgianus (R.M.Harper) Fernald, pro parte
             Scirpus atrovirens Willd. var. viviparus Farw.
  Genus: Trichophorum
    Trichophorum alpinum (L.) Pers.*+
        alpine cotton-grass, alpine club-rush
             Baeothryon alpinum (L.) T.V.Egorova
             Eriophorum alpinum L.
             Eriophorum hudsonianum Michx.
             Leucocoma alpina (L.) Rydb.
             Scirpus alpinus (L.) Dalla Torre & Sarnth., 1906
             Scirpus hudsonianus (Michx.) Fernald
             Trichophorum alpinum (L.) Pers. var. hudsonianum (Michx.) Pers.
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: 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 expansa (C.Presl) Fraser-Jenk. & Jermy*+
        northern wood fern, spreading wood fern
             Nephrodium expansum C.Presl
             Aspidium spinulosum (O.F.Müll.) Sw. var. americanum Fisch. ex Kunze
             Dryopteris assimilis S.Walker
             Dryopteris dilatata auct. non (Hoffm.) A.Gray
             Dryopteris dilatata (Hoffm.) A.Gray subsp. americana
             Dryopteris spinulosa (O.F.Müll.) Watt var. americana (Fisch. ex Kunze) Fernald
             Dryopteris spinulosa (O.F.Müll.) Watt var. dilatata auct. non (Hoffm.) Underw.
             Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. americana (Fisch. ex Kunze) Weath.
    Dryopteris filix-mas (L.) Schott*+
        male fern
             Polypodium filix-mas L.
    Dryopteris fragrans (L.) Schott*+
        fragrant fern, fragrant wood fern
             Dryopteris fragrans (L.) Schott var. remotiuscula Kom.
             Thelypteris fragrans (L.) Nieuwl.
             Thelypteris fragrans (L.) Nieuwl. var. hookeriana Fernald
             Polypodium fragrans L.
    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 intermedia (Muhl. ex Willd.) A.Gray X D. marginalis (L.) A.Gray+
        glandular marginal wood fern
    Dryopteris marginalis (L.) A.Gray*+
        marginal shield fern, marginal wood fern
             Aspidium marginale (L.) Sw.
             Polypodium marginale L.
             Thelypteris marginalis (L.) Nieuwl.
    Dryopteris X boottii (Tuck.) Underw. (pro sp.) X *+
        Boott's wood fern
             Aspidium boottii Tuck.
             Thelypteris boottii (Tuck.) 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: Polystichum
    Polystichum braunii (Spenn.) Fée*+
        Braun's holly fern
             Aspidium braunii Spenn.
             Polystichum braunii (Spenn.) Fée subsp. purshii
             Polystichum braunii (Spenn.) Fée var. purshii Fernald
  Genus: Woodsia
    Woodsia ilvensis (L.) R.Br.*+
        rusty cliff fern, rusty woodsia
             Acrostichum ilvense L.
    Woodsia oregana D.C.Eaton subsp. cathcartiana*+
        Cathcart's cliff fern, Oregon cliff fern, Oregon woodsia, western cliff fern
             Woodsia cathcartiana B.L.Rob.
             Woodsia oregana D.C.Eaton f. cathcartiana (B.L.Rob.) B.Boivin
             Woodsia oregana D.C.Eaton f. glandulosa T.M.C.Taylor
             Woodsia oregana D.C.Eaton var. cathcartiana (B.L.Rob.) C.V.Morton
             Woodsia pusilla E.Fourn. var. cathcartiana (B.L.Rob.) T.M.C.Taylor
Family: Elaeagnaceae
  Genus: Shepherdia
    Shepherdia canadensis (L.) Nutt.*+
        rabbit-berry, russet buffalo-berry
             Elaeagnus canadensis (L.) A.Nelson
             Hippophae canadensis L.
             Lepargyrea canadensis (L.) Greene
Family: Equisetaceae
  Genus: Equisetum
    Equisetum arvense L.*+
        common horsetail, field horsetail
             Equisetum arvense L. f. alpestre (Wahlenb.) Luerss.
             Equisetum arvense L. f. boreale (Bong.) Klinge
             Equisetum arvense L. f. decumbens (G.Mey.) W.D.J.Koch
             Equisetum arvense L. f. ramulosum (Rupr.) Klinge
             Equisetum arvense L. f. varium (Milde) Klinge
             Equisetum arvense L. var. alpestre Wahlenb.
             Equisetum arvense L. var. boreale (Bong.) Rupr.
             Equisetum arvense L. f. pseudo-varium Vict. var. boreale (Bong.) Rupr.
             Equisetum arvense L. f. pseudo-alpestre Vict. var. boreale (Bong.) Rupr.
             Equisetum arvense L. var. campestre Wahlenb.
             Equisetum arvense L. var. riparium Farw.
             Equisetum calderi B.Boivin
    Equisetum fluviatile L.*+
        pipes, river horsetail, water horsetail
             Equisetum fluviatile L. f. linnaeanum (Döll) M.Broun
             Equisetum fluviatile L. f. minus (R.Br.) M.Broun
             Equisetum fluviatile L. f. natans (Vict.) M.Broun
             Equisetum fluviatile L. var. limosum (L.) Gilbert
             Equisetum limosum L.
    Equisetum hyemale L. subsp. affine*+
        common scouring rush, pipes, scouring rush horsetail
             Equisetum affine Engelm.
             Equisetum hyemale L. var. affine (Engelm.) A.A.Eaton
             Equisetum hyemale L. var. californicum Milde
             Equisetum hyemale L. var. pseudohyemale (Farw.) C.V.Morton
             Equisetum hyemale L. var. robustum (A.Braun) A.A.Eaton
             Equisetum prealtum Raf.
             Equisetum robustum A.Braun
             Equisetum robustum A.Braun var. affine Engelm.
             Hippochaete hyemalis (L.) Bruhin subsp. affinis
    Equisetum pratense Ehrh.*+
        meadow horsetail
             Equisetum pratense Ehrh. f. nanum (Milde) Klinge
    Equisetum scirpoides Michx.*+
        dwarf scouring rush, sedge horsetail
    Equisetum sylvaticum L.*+
        wood horsetail, woodland horsetail
             Equisetum sylvaticum L. var. multiramosum (Fernald) Wherry
             Equisetum sylvaticum L. var. pauciramosum Milde
             Equisetum sylvaticum L. f. multiramosum Fernald var. pauciramosum Milde
    Equisetum variegatum Schleich. ex F.Weber & D.Mohr subsp. variegatum*+
        variegated horsetail, variegated scouring rush
             Equisetum variegatum Schleich. ex F.Weber & D.Mohr var. anceps Milde
             Equisetum variegatum Schleich. ex F.Weber & D.Mohr var. variegatum
             Hippochaete variegata (Schleich. ex F.Weber & D.Mohr) Bruhin
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: Epigaea
    Epigaea repens L.*+
        trailing-arbutus
             Epigaea repens L. var. glabrifolia Fernald
  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: 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 myrtilloides Michx.*+
        Canada blueberry, velvet-leaf blueberry, velvet-leaf huckleberry
             Cyanococcus canadensis (Kalm ex A.Rich.) Rydb.
             Vaccinium angustifolium Aiton var. myrtilloides (Michx.) House
             Vaccinium canadense Kalm ex A.Rich.
             Vaccinium pensilvanicum Lam. var. myrtilloides (Michx.) Fernald
    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
    Vaccinium pallidum Aiton+
        Blue Ridge blueberry, dry-land blueberry, early low-bush blueberry, hillside blueberry
             Vaccinium vacillans Kalm ex Torr.
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: Chamaesyce
    Chamaesyce glyptosperma (Engelm.) Small*+
        rib-seed sand-mat, ridge-seeded spurge
             Euphorbia glyptosperma Engelm.
    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 cyparissias L.*+
        cypress spurge, graveyard spurge
             Galarhoeus cyparissias (L.) Small ex Rydb.
             Tithymalus cyparissias (L.) Hill
Family: Fabaceae
  Genus: Coronilla
    Coronilla varia L.*+
        crown-vetch, purple crown-vetch
             Securigera varia (L.) Lassen
  Genus: Lathyrus
    Lathyrus japonicus Willd.*+
        beach pea
  Genus: Lotus
    Lotus corniculatus L.*+
        bird's-foot deer-vetch, bird's-foot trefoil
             Lotus corniculatus L. var. arvensis (Schkuhr) Ser. ex DC.
  Genus: Melilotus
    Melilotus albus Medik.*+
        white sweet-clover
             Melilotus albus Medik. var. annuus Coe
  Genus: Robinia
    Robinia pseudoacacia L.*+
        black locust
             Robinia pseudoacacia L. var. rectissima (L.) Raber
  Genus: Trifolium
    Trifolium aureum Pollich*+
        golden clover, palmate hop clover, yellow hop clover
             Trifolium agrarium L.
    Trifolium hybridum L.*+
        alsike clover
             Trifolium elegans Savi
             Trifolium hybridum L. subsp. elegans
             Trifolium hybridum L. var. elegans (Savi) Boiss.
             Trifolium hybridum L. var. pratense Rabenh.
    Trifolium pratense L.*+
        red clover
             Trifolium pratense L. f. albiflorum Puskal
             Trifolium pratense L. f. leucochraceum Asch. & Prantl
             Trifolium pratense L. f. semipurpureum (Strobl) Asch. & Graebn.
             Trifolium pratense L. var. frigidum auct. non Gaudin
             Trifolium pratense L. var. sativum (Mill.) Schreb.
             Trifolium pratense L. f. flavicans (Vis.) Hayek var. sativum (Mill.) Schreb.
  Genus: Vicia
    Vicia americana Muhl. ex Willd. subsp. americana*+
        American vetch
             Vicia americana Muhl. ex Willd. subsp. oregana
             Vicia americana Muhl. ex Willd. subsp. truncata
             Vicia americana Muhl. ex Willd. var. americana
             Vicia americana Muhl. ex Willd. var. oregana (Nutt.) A.Nelson
             Vicia americana Muhl. ex Willd. var. truncata (Nutt.) Brewer
             Vicia americana Muhl. ex Willd. var. villosa (Kellogg) F.J.Herm.
             Vicia californica Greene
             Vicia californica Greene var. madrensis Jeps.
             Vicia oregana Nutt.
             Vicia sparsifolia Nutt. ex Torr. & A.Gray var. truncata (Nutt.) S.Watson
             Vicia truncata Nutt.
    Vicia villosa Roth*+
        hairy vetch, winter vetch
             Vicia villosa Roth subsp. villosa
Family: Fagaceae
  Genus: Quercus
    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
Family: Fumariaceae
  Genus: Corydalis
    Corydalis aurea Willd. subsp. aurea*+
        golden corydalis, scrambled eggs
             Capnoides aureum (Willd.) Kuntze
             Corydalis aurea Willd. var. aurea
             Corydalis washingtoniana Fedde
    Corydalis sempervirens (L.) Pers.*+
        pink and yellow corydalis, pale corydalis, rock harlequin
             Capnoides sempervirens (L.) Borkh.
             Fumaria sempervirens L.
  Genus: Dicentra
    Dicentra cucullaria (L.) Bernh.*+
        Dutchman's-breeches
             Bicuculla cucullaria (L.) Millsp.
             Bicuculla occidentalis Rydb.
             Dicentra cucullaria (L.) Bernh. var. occidentalis (Rydb.) M.Peck
             Dicentra occidentalis (Rydb.) Fedde
             Fumaria cucullaria L.
Family: Gentianaceae
  Genus: Gentiana
    Gentiana 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
    Gentiana rubricaulis Schwein.*+
        closed gentian, Great Lakes gentian, red-stemmed gentian
             Dasystephana grayi (Kusn.) Britton
             Gentiana linearis Froel. subsp. rubricaulis
             Gentiana linearis Froel. var. lanceolata A.Gray
             Gentiana linearis Froel. var. latifolia A.Gray
             Gentiana linearis Froel. var. rubricaulis (Schwein.) MacMill.
  Genus: Halenia
    Halenia deflexa (Sm.) Griseb. subsp. deflexa*+
        American spurred-gentian, spurred-gentian
             Halenia deflexa (Sm.) Griseb. var. deflexa
             Swertia deflexa Sm.
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
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
Family: Haloragaceae
  Genus: Myriophyllum
    Myriophyllum farwellii Morong*+
        Farwell's milfoil, Farwell's water-milfoil
    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
Family: Hamamelidaceae
  Genus: Hamamelis
    Hamamelis virginiana L.*+
        American witch-hazel
             Hamamelis androgyna Walter
             Hamamelis corylifolia Moench
             Hamamelis dioica Walter
             Hamamelis macrophylla Pursh
             Hamamelis virginiana L. var. angustifolia Nieuwl.
             Hamamelis virginiana L. var. henryi Jenne
             Hamamelis virginiana L. var. macrophylla (Pursh) Nutt.
             Hamamelis virginiana L. var. orbiculata Nieuwl.
             Hamamelis virginiana L. var. parvifolia Nutt.
             Trilopus dentata Raf.
             Trilopus estivalis Raf.
             Trilopus nigra Raf.
             Trilopus nigra Raf. var. catesbiana Raf.
             Trilopus parvifolia (Nutt.) Raf.
             Trilopus rotundifolia Raf.
             Trilopus virginica (L.) Raf.
Family: Hydrocharitaceae
  Genus: Elodea
    Elodea canadensis Michx.*+
        Canadian waterweed, common waterweed
             Anacharis canadensis (Michx.) Planch.
             Anacharis canadensis (Michx.) Planch. var. planchonii (Casp.) Vict.
             Elodea brandegeae H.St.John
             Elodea ioensis Wylie
             Elodea linearis (Rydb.) H.St.John
             Elodea planchonii Casp.
             Philotria canadensis (Michx.) Britton
             Philotria linearis Rydb.
  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: Hypericaceae
  Genus: Hypericum
    Hypericum ellipticum Hook.+
        creeping St. John's-wort, pale St. John's-wort
             Hypericum ellipticum Hook. f. foliosum Vict.
             Hypericum ellipticum Hook. f. submersum Fassett
    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 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 pseudacorus L.*+
        pale-yellow iris, water flag, yellow flag, yellow iris, yellow water flag, yellow water iris
    Iris versicolor L.*+
        blue flag, harlequin blue flag, northern blue flag
  Genus: Sisyrinchium
    Sisyrinchium montanum Greene*+
        mountain blue-eyed-grass, strict blue-eyed grass
    Sisyrinchium montanum Greene var. montanum +
        mountain blue-eyed grass, strict blue-eyed grass
             Sisyrinchium heterocarpum E.P.Bicknell
             Sisyrinchium montanum Greene subsp. montanum
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 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 bufonius L.*+
        toad rush
             Juncus bufonius L. var. congestus (S.Watson) Fernald
             Juncus bufonius L. var. halophilus Buchenau & Fern.
             Juncus bufonius L. var. hybridus Farw.
             Juncus bufonius L. var. occidentalis F.J.Herm.
             Juncus bufonius L. var. ranarius (Songeon & E.P.Perrier) Farw.
             Juncus congestus S.Watson
             Juncus ranarius Songeon & E.P.Perrier
    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 compressus Jacq.*+
        round-fruited rush
    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 filiformis L.*+
        thread rush
    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
  Genus: Luzula
    Luzula acuminata Raf. var. acuminata *+
        hairy wood rush
             Luzula carolinae S.Watson var. saltuensis (Fernald) Fernald
             Luzula saltuensis Fernald
    Luzula multiflora (Ehrh.) Lej. subsp. multiflora*+
        common wood rush
             Juncus campestris L. var. multiflorus Retz.
             Juncus multiflorus Ehrh.
             Luzula campestris (L.) DC. var. multiflora (Retz.) Celak.
Family: Juncaginaceae
  Genus: Triglochin
    Triglochin maritima L.*+
        arrow-grass, common bog arrow-grass, seaside arrow-grass
             Triglochin concinna Burtt Davy
             Triglochin concinna Burtt Davy var. debilis (M.E.Jones) J.T.Howell
             Triglochin debilis (M.E.Jones) A.Löve & D.Löve
             Triglochin elata Nutt.
             Triglochin maritimum L. var. elata (Nutt.) A.Gray
Family: Lamiaceae
  Genus: Clinopodium
    Clinopodium vulgare L.*+
        wild-basil
             Clinopodium vulgare L. var. diminutum Simon
             Clinopodium vulgare L. var. neogaea (Fernald) C.F.Reed
             Satureja vulgaris (L.) Fritsch
             Satureja vulgaris (L.) Fritsch var. diminuta (Simon) Fernald & Wiegand
             Satureja vulgaris (L.) Fritsch var. neogaea Fernald
  Genus: Galeopsis
    Galeopsis tetrahit L.*+
        brittle-stem hemp-nettle, common hemp-nettle, hemp-nettle
    Galeopsis tetrahit L. var. tetrahit +
        brittle-stem hemp-nettle, common hemp-nettle, hemp-nettle
  Genus: Glechoma
    Glechoma hederacea L. var. micrantha Moric.+
        creeping-Charlie, gill-over-the-ground, ground-ivy
             Glechoma hederacea L. var. parviflora (Benth.) House
             Nepeta hederacea (L.) Trevis. var. parviflora Benth.
  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.
    Mentha X piperita L. (pro sp.) X *+
        peppermint
             Mentha aquatica L. var. crispa (L.) Benth.
             Mentha crispa L.
             Mentha dumetorum Schult.
  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: Scutellaria
    Scutellaria lateriflora L.*+
        blue skullcap, mad-dog skullcap
             Scutellaria lateriflora L. var. lateriflora
  Genus: Stachys
    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
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 intermedia Hayne*+
        flat-leaved bladderwort, northern bladderwort
    Utricularia purpurea Walter*+
        eastern purple bladderwort, spotted bladderwort
             Vesiculina purpurea (Walter) Raf.
             Vesiculina saccata Raf.
    Utricularia resupinata B.D.Greene ex Bigelow*+
        northeastern bladderwort, resupinate bladderwort
             Lecticula resupinata (B.D.Greene ex Bigelow) Barnhart
    Utricularia vulgaris L.*+
        Common bladderwort, great bladderwort
             Utricularia macrorhiza Leconte
             Utricularia vulgaris L. subsp. macrorhiza
             Utricularia vulgaris L. var. americana A.Gray
Family: Liliaceae
  Genus: Allium
    Allium tricoccum Sol. var. burdickii Hanes*+
        narrow-leaved wild leek, wild leek
             Allium burdickii (Hanes) A.G.Jones
    Allium tricoccum Sol. var. tricoccum *+
        ramp, wild leek
             Allium pictum Moldenke
             Allium triflorum Raf.
             Ophioscorodon tricoccum (Sol.) Wallr.
             Validallium tricoccum (Sol.) Small
  Genus: Asparagus
    Asparagus officinalis L.*+
        asparagus, common asparagus, garden asparagus
  Genus: Clintonia
    Clintonia borealis (Aiton) Raf.*+
        blue-bead-lily, corn-lily, yellow blue-bead-lily, yellow clintonia
             Dracaena borealis Aiton
  Genus: Erythronium
    Erythronium albidum Nutt.*+
        small white fawn-lily, white dog-tooth violet, white trout-lily
    Erythronium americanum Ker Gawl. subsp. americanum*+
        American trout-lily, yellow dog-tooth violet, yellow trout-lily
             Erythronium americanum Ker Gawl. f. bachii (Farw.) Dole
  Genus: Hemerocallis
    Hemerocallis fulva (L.) L.*+
        orange daylily, tawny daylily
             Hemerocallis fulva (L.) L. var. fulva
             Hemerocallis lilioasphodelus L. var. fulva L.
  Genus: Lilium
    Lilium michiganense Farw.*+
        Michigan lily, Turk's-cap lily
             Lilium canadense L. subsp. michiganense
             Lilium canadense L. var. umbelliferum (Farw.) B.Boivin
             Lilium michiganense Farw. var. umbelliferum Farw.
             Lilium michiganense Farw. var. uniflorum Farw.
  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 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 trifolium (L.) Sloboda*+
        false mayflower, swamp false Solomon's-seal, three-leaf Solomon's-seal, three-leaf Solomon's-plume
             Convallaria trifolia L.
             Smilacina trifolia (L.) Desf.
             Tovaria trifolia (L.) Neck. ex Baker
             Unifolium trifolium (L.) Greene
             Vagnera trifolia (L.) Morong
  Genus: Polygonatum
    Polygonatum biflorum (Walter) Elliott*+
        giant Solomon's-seal, king Solomon's-seal, smooth Solomon's-seal, Solomon's-seal
             Convallaria biflora Walter, pro parte
             Polygonatum biflorum (Walter) Elliot var. commutatum (Schult.f.) Morong
             Polygonatum biflorum (Walter) Elliott var. melleum (Farw.) R.P.Ownbey
             Polygonatum canaliculatum auct. non (Muhl. ex Willd.) Pursh
             Polygonatum cobrense (Wooton & Standl.) R.R.Gates
             Polygonatum commutatum (Schult.f.) A.Dietr.
             Polygonatum commutatum (Schult.f.) A.Dietr. f. foliatum H.M.Clarke
             Polygonatum giganteum A.Dietr.
             Polygonatum melleum Farw.
    Polygonatum pubescens (Willd.) Pursh*+
        downy Solomon's-seal, hairy Solomon's-seal
             Convallaria pubescens Willd.
  Genus: Streptopus
    Streptopus amplexifolius (L.) DC.*+
        clasp-leaf twisted-stalk, twisted-stalk, white mandarin
             Streptopus amplexifolius (L.) DC. var. americanus Schult.
             Streptopus amplexifolius (L.) DC. var. amplexifolius
             Streptopus amplexifolius (L.) DC. var. chalazatus Fassett
             Streptopus amplexifolius (L.) DC. var. denticulatus Fassett
    Streptopus lanceolatus (Aiton) Reveal var. longipes (Fernald) Reveal*+
        twisted-stalk
             Streptopus longipes Fernald
             Steptopus roseus Michx. subsp. longipes
             Streptopus roseus Michx. var. longipes (Fernald) Fassett
  Genus: Trillium
    Trillium cernuum L.*+
        nodding trillium, whip-poor-will flower
             Trillium cernuum L. var. cernuum
             Trillium cernuum L. var. macranthum A.J.Eames & Wiegand
    Trillium grandiflorum (Michx.) Salisb.*+
        big white trillium, great white trillium, large-flowered trillium, snow trillium, white trillium, white wake-robin
             Trillium erythrocarpum Curtis 1805, not Michx. 1803
             Trillium rhomboideum Michx. var. grandiflorum Michx.
  Genus: Uvularia
    Uvularia grandiflora Sm.*+
        large-flowered bellwort
    Uvularia sessilifolia L.*+
        sessile bellwort, sessile-leaved bellwort, straw-lily, wild-oats
             Oakesiella sessilifolia (L.) Small
             Oakesia sessilifolia (L.) S.Watson
Family: Lobeliaceae
  Genus: Lobelia
    Lobelia inflata L.*+
        Indian-tobacco
    Lobelia siphilitica L. var. siphilitica +
        great blue lobelia
             Lobelia siphilitica L. f. albiflora Britton
Family: Lycopodiaceae
  Genus: Diphasiastrum
    Diphasiastrum complanatum (L.) Holub*+
        Christmas green, flat-branched club-moss, northern running-pine
             Diphasium anceps (Wallr.) A.Löve & D.Löve
             Diphasium complanatum (L.) Rothm.
             Diphasium complanatum (L.) Rothm. subsp. montellii
             Diphasium wallrothii H.P.Fuchs
             Lycopodium anceps Wallr.
             Lycopodium complanatum L.
             Lycopodium complanatum L. subsp. anceps
             Lycopodium complanatum L. var. canadense Vict.
    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 hickeyi W.H.Wagner, Beitel & R.C.Moran*+
        Hickey's club-moss, intermediate ground-pine
             Lycopodium obscurum L. var. isophyllum Hickey
    Lycopodium obscurum L.*+
        flat-branched ground-pine, princess'-pine, rare club-moss
             Lycopodium obscurum L. var. obscurum
Family: Malvaceae
  Genus: Malva
    Malva moschata L.*+
        musk mallow
Family: Menyanthaceae
  Genus: Menyanthes
    Menyanthes trifoliata L.*+
        bogbean, common buckbean
             Menyanthes trifoliata L. var. minor Raf.
Family: Monotropaceae
  Genus: Monotropa
    Monotropa hypopithys L.*+
        false beech-drops, pinesap
             Hypopitys americana (DC.) Small
             Hypopitys fimbriata (A.Gray) T.J.Howell
             Hypopitys insignata E.P.Bicknell
             Hypopitys lanuginosa (Michx.) Nutt.
             Hypopitys latisquama Rydb.
             Hypopitys monotropa Crantz
             Hypopitys multiflora Scop. var. americana DC.
             Monotropa fimbriata A.Gray
             Monotropa hypopithys L. subsp. lanuginosa
             Monotropa hypopithys L. var. americana (DC.) Domin
             Monotropa hypopithys L. var. latisquama (Rydb.) Kearney & Peebles
             Monotropa hypopithys L. var. rubra Farw.
             Monotropa lanuginosa Michx.
             Monotropa latisquama (Rydb.) Hultén
    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
  Genus: Myrica
    Myrica gale L.*+
        meadow-fern, sweet gale
             Gale palustris (Lam.) A.Chev.
             Gale palustris (Lam.) A.Chev. var. denticulata A.Chev.
             Gale palustris (Lam.) A.Chev. var. lusitanica A.Chev.
             Gale palustris (Lam.) A.Chev. var. subglabra A.Chev.
             Gale palustris (Lam.) A.Chev. var. tomentosa (C.DC.) A.Chev.
             Myrica gale L. var. gale
             Myrica gale L. var. subglabra (A.Chev.) Fernald
             Myrica gale L. var. tomentosa C.DC.
             Myrica palustris Lam.
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
Family: Nymphaeaceae
  Genus: Nuphar
    Nuphar microphylla (Pers.) Fernald*+
        yellow pond-lily
             Nuphar kalmiana (Michx.) W.T.Aiton
             Nuphar lutea (L.) Sm. subsp. pumila
             Nuphar minima (Willd.) Sm.
             Nuphar pumila auct. pro parte, non (Timm) DC.
             Nymphaea microphylla Pers.
    Nuphar variegata Durand*+
        bull-head pond-lily
             Nuphar advena (Aiton) W.T.Aiton var. fraterna (G.S.Mill. & Standl.) Standl.
             Nuphar fraterna (G.S.Mill. & Standl.) Standl.
             Nuphar lutea (L.) Sm. subsp. variegata
             Nymphaea americana G.S.Mill. & Standl.
             Nymphaea fraterna G.S.Mill. & Standl.
  Genus: Nymphaea
    Nymphaea odorata Aiton*+
        American white water-lily, fragrant water-lily
    Nymphaea odorata Aiton subsp. odorata*+
        American white water-lily, fragrant water-lily, white water-lily
             Castalia lekophylla Small
             Castalia minor (Sims) Nyár.
             Castalia odorata (Aiton) Woodv. & A.W.Wood
             Castalia reniformis (DC.) Trel. ex Branner & Coville
             Nymphaea minor (Sims) DC.
             Nymphaea odorata Aiton f. rubra (Guillon) Conard
             Nymphaea odorata Aiton var. gigantea Tricker
             Nymphaea odorata Aiton var. godfreyi D.B.Ward
             Nymphaea odorata Aiton var. maxima (Conard) B.Boivin
             Nymphaea odorata Aiton var. minor Sims
             Nymphaea odorata Aiton var. odorata
             Nymphaea odorata Aiton var. rosea Pursh
             Nymphaea odorata Aiton var. stenopetala Fernald
             Nymphaea odorata Aiton var. villosa Casp.
    Nymphaea odorata Aiton subsp. tuberosa*+
        American white water-lily, white water-lily
             Castalia tuberosa (Paine) Greene
             Nymphaea tuberosa Paine
Family: Oleaceae
  Genus: Fraxinus
    Fraxinus nigra Marshall*+
        black ash
    Fraxinus pennsylvanica Marshall*+
        green ash, red ash
             Fraxinus campestris Britton
             Fraxinus darlingtonii Britton
             Fraxinus juglandifolia Lam. var. subintegerrima Vahl
             Fraxinus lanceolata Borkh.
             Fraxinus pennsylvanica Marshall var. austinii Fernald
             Fraxinus pennsylvanica Marshall var. lanceolata (Borkh.) Sarg.
             Fraxinus pennsylvanica Marshall var. pennsylvanica
             Fraxinus pennsylvanica Marshall var. subintegerrima (Vahl) Fernald
             Fraxinus smallii Britton
Family: Onagraceae
  Genus: Circaea
    Circaea alpina L. subsp. alpina*+
        alpine enchanter's-nightshade, northern enchanter's-nightshade, small enchanter's-nightshade
             Circaea alpina L. var. alpina
  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 ciliatum Raf. subsp. ciliatum*+
        American willow-herb, coast willow-weed, hairy willow-herb
             Epilobium adenocaulon Hausskn.
             Epilobium adenocaulon Hausskn. var. ecomosum (Fassett) Munz
             Epilobium adenocaulon Hausskn. var. holosericeum (Trel.) Munz
             Epilobium adenocaulon Hausskn. var. parishii (Trel.) Munz
             Epilobium adenocaulon Hausskn. var. perplexans Trel.
             Epilobium americanum Hausskn.
             Epilobium brevistylum Barbey
             Epilobium brevistylum Barbey var. ursinum (Parish ex Trel.) Jeps.
             Epilobium californicum Hausskn.
             Epilobium californicum Hausskn. var. holosericeum (Trel.) Munz
             Epilobium ciliatum Raf. var. ciliatum
             Epilobium ciliatum Raf. var. ecomosum (Fassett) B.Boivin
             Epilobium delicatum Trel.
             Epilobium ecomosum (Fassett) Fernald
             Epilobium glandulosum Lehm. var. adenocaulon (Hausskn.) Fernald
             Epilobium glandulosum Lehm. var. ecomosum Fassett
             Epilobium glandulosum Lehm. var. macounii (Trel.) C.L.Hitchc.
             Epilobium glandulosum Lehm. var. perplexans (Trel.) Fernald
             Epilobium holosericeum Trel.
             Epilobium leptocarpum Raf. var. macounii Trel.
             Epilobium parishii Trel.
             Epilobium ursinum Parish ex Trel.
             Epilobium watsonii Barbey var. parishii (Trel.) C.L.Hitchc.
    Epilobium ciliatum Raf. subsp. glandulosum*+
        American willow-herb, glandular willow-weed, hairy willow-herb
             Epilobium adenocaulon Hausskn. var. occidentale Trel.
             Epilobium boreale Hausskn.
             Epilobium ciliatum Raf. var. glandulosum (Lehm.) Dorn
             Epilobium cinerascens Piper
             Epilobium glandulosum Lehm.
             Epilobium glandulosum Lehm. var. cardiophyllum Fernald
             Epilobium adenocaulon Hausskn. var. cinerascens (Piper) M.Peck
             Epilobium glandulosum Lehm. var. glandulosum
             Epilobium glandulosum Lehm. var. occidentale (Trel.) Fernald
             Epilobium occidentale (Trel.) Rydb.
             Epilobium watsonii Barbey var. occidentale (Trel.) C.L.Hitchc.
    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
    Epilobium palustre L.+
        marsh willow-herb
             Epilobium lineare Muhl.
             Epilobium oliganthum Michx.
             Epilobium palustre L. var. grammadophyllum Hausskn.
             Epilobium palustre L. var. labradoricum Hausskn.
             Epilobium palustre L. var. lapponicum Wahlenb.
             Epilobium palustre L. var. longirameum Fernald & Wiegand
             Epilobium palustre L. var. oliganthum (Michx.) Fernald
             Epilobium pylaieanum Fernald
             Epilobium wyomingense A.Nelson
  Genus: Ludwigia
    Ludwigia palustris (L.) Elliott*+
        marsh purslane, marsh seed-box, water-purslane
             Isnardia palustris L., non Jussiaea palustris G.F.W.Mey.
             Isnardia palustris L. var. americana DC.
             Ludwigia palustris (L.) Elliott var. americana (DC.) Fernald & Griscom
             Ludwigia palustris (L.) Elliott f. elongata Fassett var. americana (DC.) Fernald & Griscom
             Ludwigia palustris (L.) Elliott var. nana Fernald & Griscom
             Ludwigia palustris (L.) Elliott var. pacifica Fernald & Griscom
  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
Family: Ophioglossaceae
  Genus: Botrychium
    Botrychium lanceolatum (S.G.Gmel.) Ångstr. subsp. angustisegmentum*+
        lance-leaved grape fern, narrow triangle moonwort, triangle grape fern, triangle moonwort
             Botrychium angustisegmentum (Pease & A.H.Moore) Fernald
             Botrychium lanceolatum (S.G.Gmel.) Ångstr. var. angustisegmentum Pease & A.H.Moore
    Botrychium matricariifolium (Döll) A.Braun ex W.D.J.Koch*+
        daisy-leaf grape fern, daisy-leaf moonwort, matricary grape fern
             Botrychium lunaria (L.) Sw. var. matricariifolium Döll
             Botrychium matricariifolium (Döll) A.Braun ex W.D.J.Koch var. matricariifolium
             Botrychium neglectum A.W.Wood
    Botrychium multifidum (S.G.Gmel.) Rupr.*+
        leathery grape fern, leather-leaved grape fern
             Botrychium californicum Underw.
             Botrychium coulteri Underw.
             Botrychium matricariae (Schrank) Spreng.
             Botrychium multifidum (S.G.Gmel.) Rupr. subsp. californicum
             Botrychium multifidum (S.G.Gmel.) Rupr. subsp. coulteri
             Botrychium multifidum (S.G.Gmel.) Rupr. subsp. silaifolium
             Botrychium multifidum (S.G.Gmel.) Rupr. var. californicum (Underw.) M.Broun
             Botrychium multifidum (S.G.Gmel.) Rupr. var. coulteri (Underw.) M.Broun
             Botrychium multifidum (S.G.Gmel.) Rupr. var. intermedium (D.C.Eaton) Farw.
             Botrychium multifidum (S.G.Gmel.) Rupr. var. robustum (Rupr.) C.Chr.
             Botrychium multifidum (S.G.Gmel.) Rupr. var. silaifolium (C.Presl) Broun
             Botrychium silaifolium C.Presl
             Botrychium silaifolium C.Presl var. coulteri (Underw.) Jeps.
             Botrychium ternatum (Thunb.) Sw. var. intermedium D.C.Eaton
             Osmunda multifida S.G.Gmel.
    Botrychium virginianum (L.) Sw.*+
        rattlesnake fern
             Botrychium virginianum (L.) Sw. subsp. europaeum
             Botrychium virginianum (L.) Sw. var. europaeum Ångstr.
             Osmunda virginiana L.
Family: Orchidaceae
  Genus: Arethusa
    Arethusa bulbosa L.*+
        dragon's-mouth, swamp-pink
  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: Calypso
    Calypso bulbosa (L.) Oakes var. americana (R.Br.) Luer*+
        calypso orchid, fairy-slipper orchid
             Cytherea bulbosa (L.) House, pro parte
  Genus: Coeloglossum
    Coeloglossum viride (L.) Hartm. var. virescens (Muhl.) Luer*+
        long-bracted green orchid, frog orchid
             Coeloglossum bracteatum (Muhl.) Parl.
             Coeloglossum viride (L.) Hartm. subsp. bracteatum
             Habenaria bracteata (Muhl.) R.Br.
             Habenaria viridis (L.) R.Br. var. bracteata (Muhl.) A.Gray
             Orchis bracteata Muhl.
             Orchis virescens Muhl.
  Genus: Corallorhiza
    Corallorhiza maculata (Raf.) Raf.*+
        spotted coralroot, summer coralroot
    Corallorhiza striata Lindl. var. striata *+
        hooded coralroot, striped coralroot
             Corallorhiza macraei A.Gray
    Corallorhiza trifida Châtel.*+
        early coralroot, northern coralroot, yellow coralroot
             Corallorhiza corallorhiza (L.) H.Karst.
             Corallorhiza innata R.Br.
             Corallorhiza innata R.Br. var. virescens Farr
             Corallorhiza trifida Châtel. var. trifida
             Corallorhiza trifida Châtel. var. verna (Nutt.) Fernald
             Corallorhiza trifida Châtel. var. virescens (Farr) Fernald
             Corallorhiza verna Nutt.
             Corallorhiza wyomingensis Hellm. & K.Hellm.
  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 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 oblongifolia Raf.*+
        giant rattlesnake-plantain, Menzies's giant rattlesnake-plantain, western rattlesnake-plantain
             Epipactis decipiens (Hook.) Ames
             Goodyera decipiens (Hook.) F.T.Hubb.
             Goodyera oblongifolia Raf. var. reticulata B.Boivin
             Peramium decipiens (Hook.) Piper
    Goodyera repens (L.) R.Br.*+
        creeping rattlesnake-plantain, lesser rattlesnake-plantain
             Epipactis repens (L.) Crantz var. ophioides (Fernald) A.A.Eaton
             Goodyera ophioides (Fernald) Rydb.
             Goodyera repens (L.) R.Br. subsp. ophioides
             Goodyera repens (L.) R.Br. var. ophioides Fernald
             Peramium ophioides (Fernald) Rydb.
             Peramium repens (L.) Salisb. var. ophioides (Fernald) A.Heller
             Satyrium repens L.
    Goodyera tesselata Lodd.*+
        checkered rattlesnake-plantain, tesselated rattlesnake-plantain
             Epipactis tesselata (Lodd.) A.A.Eaton
             Peramium tesselatum (Lodd.) A.Heller
  Genus: Listera
    Listera convallarioides (Sw.) Elliott*+
        broad-leaved twayblade
             Bifolium convallarioides (Sw.) Nieuwl.
             Diphryllum convallarioides (Sw.) Kuntze
             Epipactis convallarioides Sw.
             Listera eschscholziana Cham.
             Ophrys convallarioides (Sw.) W.Wight ex House
  Genus: Malaxis
    Malaxis monophyllos (L.) Sw. var. brachypoda (A.Gray) F.J.A.Morris & E.A.Eames*+
        North American white adder's-mouth, white adder's-mouth
             Malaxis brachypoda (A.Gray) Fernald
             Malaxis monophyllos (L.) Sw. subsp. brachypoda
             Microstylis brachypoda A.Gray
    Malaxis unifolia Michx.*+
        green adder's-mouth
             Achroanthes unifolia (Michx.) Raf.
             Malaxis ophioglossoides Muhl. ex Willd.
             Malaxis thlaspiformis A.Rich. & Galeotti
             Malaxis unifolia Michx. f. bifolia Mousley
             Malaxis unifolia Michx. f. unifolia
             Microstylis grisebachiana Fawc. & Rendle
             Microstylis unifolia (Michx.) Britton, Sterns & Poggenb.
  Genus: Platanthera
    Platanthera clavellata (Michx.) Luer*+
        club-spur orchid, green woodland orchid, small green fringed orchid
             Denslovia clavellata (Michx.) Rydb.
             Gymnadeniopsis clavellata (Michx.) Rydb.
             Habenaria clavellata (Michx.) Spreng.
             Habenaria clavellata (Michx.) Spreng. var. ophioglossoides Fernald
             Habenaria clavellata (Michx.) Spreng. var. wrightii Olive
             Orchis clavellata Michx.
    Platanthera huronensis (Nutt.) Lindl.*+
        Huron green orchid, tall nothern bog orchid
             Habenaria dilatata (Pursh) Hook. var. media (Rydb.) Ames
             Habenaria huronensis (Nutt.) Spreng.
             Habenaria hyperborea (L.) R.Br. var. huronensis (Nutt.) Farw.
             Habenaria X media (Rydb.) G.Niles (pro sp.)
             Limnorchis huronensis (Nutt.) Rydb.
             Limnorchis media Rydb.
             Orchis huronensis Nutt.
             Platanthera hyperborea (L.) Lindl. var. huronensis (Nutt.) Luer
             Platanthera hyperborea (L.) Lindl. var. major Lange
             Platanthera X media (Rydb.) Luer (pro sp.) X
    Platanthera hyperborea (L.) Lindl.
        northern green orchid, tall northern bog orchid
             Habenaria hyperborea (L.) R.Br.
             Limnorchis hyperborea (L.) Rydb.
             Orchis hyperborea L.
             Platanthera hyperborea (L.) Lindl. var. hyperborea
             Platanthera hyperborea (L.) Lindl. var. minor Lange
    Platanthera lacera (Michx.) G.Don*+
        green fringed orchid, ragged fringed orchid
             Blephariglottis lacera (Michx.) Farw.
             Habenaria lacera (Michx.) R.Br.
             Orchis lacera Michx.
             Platanthera lacera (Michx.) G.Don var. lacera
    Platanthera obtusata (Banks ex Pursh) Lindl.*+
        blunt bog orchid, blunt-leaved orchid
             Habenaria obtusata (Banks ex Pursh) Richardson
             Habenaria obtusata (Banks ex Pursh) Richardson var. collectanea Fernald
             Lysiella obtusata (Banks ex Pursh) Rydb.
             Orchis obtusata Banks ex Pursh
             Platanthera obtusata (Banks ex Pursh) Lindl. subsp. oligantha
    Platanthera orbiculata (Pursh) Lindl.*+
        large round-leaved orchid
             Habenaria orbiculata (Pursh) Torr.
             Habenaria orbiculata (Pursh) Torr. var. lehorsii Fernald
             Habenaria orbiculata (Pursh) Torr. var. menziesii (Lindl.) Fernald
             Lysias orbiculata (Pursh) Rydb.
             Orchis orbiculata Pursh
             Platanthera orbiculata (Pursh) Lindl. var. lehorsii (Fernald) Catling
             Platanthera orbiculata (Pursh) Lindl. var. orbiculata
  Genus: Pogonia
    Pogonia ophioglossoides (L.) Ker Gawl.*+
        adder's-mouth, rose pogonia, snakemouth orchid
             Arethusa ophioglossoides L.
             Pogonia ophioglossoides (L.) Ker Gawl. f. albiflora E.L.Rand & Redfield
             Pogonia ophioglossoides (L.) Ker Gawl. f. ophioglossoides
             Pogonia ophioglossoides (L.) Juss. var. brachypogon Fernald
  Genus: Spiranthes
    Spiranthes cernua (L.) Rich.*+
        nodding lady's-tresses
             Gyrostachys cernua (L.) Kuntze
             Ibidium cernuum (L.) House
             Ophrys cernua L.
             Spiranthes cernua (L.) Rich. var. incurva Jenn.
    Spiranthes lacera (Raf.) Raf. var. lacera +
        northern slender lady's-tresses
             Neottia lacera Raf.
    Spiranthes romanzoffiana Cham.*+
        hooded lady's-tresses
             Gyrostachys stricta Rydb.
             Ibidium romanzoffianum (Cham.) House
             Ibidium strictum (Rydb.) House
             Spiranthes stricta (House) A.Nelson
Family: Orobanchaceae
  Genus: Orobanche
    Orobanche uniflora L.*+
        cancer-root, naked broom-rape, one-flowered broom-rape
             Anoplanthus uniflorus (L.) Endl.
             Aphyllon minutum Suksd.
             Aphyllon sedii Suksd.
             Aphyllon uniflorum (L.) A.Gray
             Aphyllon uniflorum (L.) A.Gray var. occidentale Greene
             Orobanche porphyrantha Beck
             Orobanche purpurea Jacq.
             Orobanche sedii (Suksd.) Fernald
             Orobanche terrae-novae Fernald
             Orobanche uniflora L. subsp. occidentalis
             Orobanche uniflora L. var. minuta (Suksd.) Beck
             Orobanche uniflora L. var. occidentalis (Greene) Roy L.Taylor & MacBryde
             Orobanche uniflora L. var. purpurea (A.Heller) Achey
             Orobanche uniflora L. var. sedii (Suksd.) Achey
             Orobanche uniflora L. var. terrae-novae (Fernald) Munz
             Orobanche uniflora L. var. typica Achey
             Orobanche uniflora L. var. uniflora
             Thalesia purpurea A.Heller
             Thalesia uniflora (L.) Britton
Family: Osmundaceae
  Genus: Osmunda
    Osmunda cinnamomea L.*+
        cinnamon fern
             Osmunda cinnamomea L. f. frondosa (Torr. & A.Gray) Britton
             Osmunda cinnamomea L. f. incisa (Huntington) Gilbert
             Osmunda cinnamomea L. var. cinnamomea
             Osmunda cinnamomea L. var. frondosa Torr. & A.Gray
             Osmunda cinnamomea L. var. glandulosa Waters
    Osmunda claytoniana L.*+
        interrupted fern
    Osmunda regalis L. var. spectabilis (Willd.) A.Gray*+
        American royal fern, flowering fern, royal fern
             Osmunda spectabilis Willd.
Family: Oxalidaceae
  Genus: Oxalis
    Oxalis montana Raf.*+
        mountain wood-sorrel
             Oxalis acetosella auct. non L.
             Oxalis acetosella L. subsp. montana
             Oxalis acetosella L. var. rhodantha (Fernald) R.Knuth
             Oxalis montana Raf. f. rhodantha Fernald
    Oxalis stricta L.*+
        common yellow oxalis, tall wood-sorrel
             Ceratoxalis coloradensis (Rydb.) Lunell
             Ceratoxalis cymosa (Small) Lunell
             Oxalis bushii Small
             Oxalis coloradensis Rydb.
             Oxalis europaea Jord.
             Oxalis europaea Jord. f. cymosa (Small) Wiegand
             Oxalis europaea Jord. f. pilosella Wiegand
             Oxalis europaea Jord. f. subglabrata Wiegand
             Oxalis europaea Jord. f. villicaulis Wiegand
             Oxalis europaea Jord. var. bushii (Small) Wiegand
             Oxalis europaea Jord. f. vestita Wiegand var. bushii (Small) Wiegand
             Oxalis europaea Jord. var. rufa (Small) Young
             Oxalis fontana Bunge
             Oxalis fontana Bunge var. bushii (Small) Hara
             Oxalis interior (Small) Fedde
             Oxalis rufa Small
             Oxalis stricta L. var. decumbens Bitter
             Oxalis stricta L. var. piletocarpa Wiegand
             Oxalis stricta L. var. rufa (Small) Farw.
             Oxalis stricta L. var. villicaulis (Wiegand) Farw.
             Oxalis cymosa Small
             Xanthoxalis bushii (Small) Small
             Xanthoxalis coloradensis (Rydb.) Rydb.
             Xanthoxalis cymosa (Small) Small
             Xanthoxalis dillenii (Jacq.) Holub var. piletocarpa (Wiegand) Holub
             Xanthoxalis interior Small
             Xanthoxalis rufa (Small) Small
             Xanthoxalis stricta (L.) Small
             Xanthoxalis stricta (L.) Small var. piletocarpa (Wiegand) Moldenke
Family: Papaveraceae
  Genus: Papaver
    Papaver somniferum L. subsp. setigerum*+
        common poppy, opium poppy
             Papaver setigerum DC.
  Genus: Sanguinaria
    Sanguinaria canadensis L.*+
        bloodroot
             Sanguinaria australis Greene
             Sanguinaria canadensis L. var. rotundifolia (Greene) Fedde
             Sanguinaria dilleniana Greene
             Sanguinaria rotundifolia Greene
Family: Pinaceae
  Genus: Abies
    Abies balsamea (L.) Mill.*+
        balsam fir, Canada balsam
             Pinus balsamea L.
  Genus: Larix
    Larix laricina (Du Roi) K.Koch*+
        larch, tamarack
             Larix alaskensis W.Wight
             Larix laricina (Du Roi) K.Koch var. alaskensis (W.Wight) Raup
             Pinus laricina Du Roi
  Genus: Picea
    Picea abies (L.) H.Karst.*+
        Norway spruce
             Picea excelsa (Lamb.) Link
             Pinus abies L.
    Picea glauca (Moench) Voss*+
        white spruce
             Abies canadensis Mill.
             Picea alba (Aiton) Link
             Picea albertiana S.Br.
             Picea canadensis (Mill.) Britton, Sterns & Poggenb.
             Picea canadensis (Mill.) Britton, Sterns & Poggenb. var. glauca (Moench) Sudw.
             Picea glauca (Moench) Voss var. albertiana (S.Br.) Sarg.
             Picea glauca (Moench) Voss var. densata L.H.Bailey
             Picea glauca (Moench) Voss var. porsildii Raup
             Pinus alba Aiton
             Pinus glauca Moench
    Picea mariana (Mill.) Britton, Sterns & Poggenb.*+
        black spruce
             Abies mariana Mill.
             Picea mariana (Mill.) Britton, Sterns & Poggenb. var. mariana
  Genus: Pinus
    Pinus banksiana Lamb.*+
        jack pine
             Pinus divaricata (Aiton) Sudw.
    Pinus resinosa Aiton*+
        Canadian pine, Norway pine, red pine
    Pinus strobus L.*+
        eastern white pine
             Strobus strobus (L.) Small
  Genus: Tsuga
    Tsuga canadensis (L.) Carrière*+
        eastern hemlock, hemlock, northern hemlock
             Pinus canadensis L.
Family: Plantaginaceae
  Genus: Plantago
    Plantago aristata Michx.+
        bracted plantain, buck-horn, large-bracted plantain
             Plantago aristata Michx. var. nuttallii (Rapin) E.Morris
             Plantago filiformis Decne.
             Plantago frankii Steud.
             Plantago nuttallii Rapin
             Plantago patagonica Jacq. var. aristata (Michx.) A.Gray
             Plantago purshii Roem. & Schult. var. aristata (Michx.) M.E.Jones
             Plantago squarrosa Nutt.
             Plantago squamosa Nutt. ex Decne.
    Plantago lanceolata L.*+
        English plantain, narrow-leaved plantain, plantain, ribgrass
             Plantago altissima auct. non L.
             Plantago lanceolata L. var. angustifolia Poir.
             Plantago lanceolata L. var. sphaerostachya Mert. & W.D.J.Koch
    Plantago major L.*+
        broad-leaved plantain, common plantain, plantain
             Plantago major L. var. scopulorum Fr. & Broberg
    Plantago rugelii Decne.*+
        American plantain, black-seeded plantain, red-stalked plantain, Rugel's plantain
             Plantago rugelii Decne. var. alterniflora Farw.
             Plantago rugelii Decne. var. aspera Farw.
Family: Poaceae
  Genus: Agrostis
    Agrostis gigantea Roth*+
        redtop
             Agrostis alba auct. non L.
             Agrostis gigantea Roth var. dispar (Michx.) Philipson
             Agrostis gigantea Roth var. ramosa (S.F.Gray) Philipson
             Agrostis nigra With.
             Agrostis stolonifera L. subsp. gigantea
             Agrostis stolonifera L. var. major (Gaudin) Farw.
    Agrostis hyemalis (Walter) Britton, Sterns & Poggenb.*+
        southern hair grass, tickle grass, winter bent grass
    Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. var. scabra (Willd.) Blomq.*+
        rough bent grass, southern hair grass, tickle grass
             Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. var. tenuis (Tuck.) Gleason
             Agrostis scabra Willd.
             Agrostis scabra Willd. var. scabra
    Agrostis perennans (Walter) Tuck. var. perennans *+
        autumn bent grass, thin grass, upland bent grass
             Agrostis oreophila Trin.
             Agrostis perennans (Walter) Tuck. var. aestivalis Vasey
             Agrostis schweinitzii Trin.
             Cornucopiae perennans Walter
  Genus: Anthoxanthum
    Anthoxanthum odoratum L.*+
        sweet vernal grass
             Anthoxanthum odoratum L. subsp. odoratum
  Genus: Aristida
    Aristida basiramea Engelm. ex Vasey*+
        fork-tip three-awn grass
             Aristida basiramea Engelm. ex Vasey var. basiramea
  Genus: Brachyelytrum
    Brachyelytrum aristosum (Michx.) Trel.+
        bearded shorthusk, long-awned wood grass, northern shorthusk
             Brachyelytrum aristosum (Michx.) Trel. var. glabratum Vasey ex Millsp.
             Brachyelytrum erectum (Schreb. ex Spreng.) P.Beauv. var. glabratum (Vasey ex Millsp.) T.Koyama & Kawano
             Brachyelytrum erectum (Schreb. ex Spreng.) P.Beauv. var. septentrionale Babel
             Brachyelytrum septentrionale (Babel) G.C.Tucker
  Genus: Bromus
    Bromus ciliatus L.*+
        fringed brome
             Bromopsis ciliata (L.) Holub
             Bromus ciliatus L. f. ciliatus
             Bromus ciliatus L. f. denudatus Wiegand
             Bromus ciliatus L. var. ciliatus
             Bromus ciliatus L. var. denudatus (Wiegand) Fernald
             Bromus ciliatus L. var. genuinus Fernald
             Bromus ciliatus L. var. intonsus Fernald
             Bromus dudleyi Fernald
    Bromus kalmii A.Gray*+
        Arctic brome, ear-leaved brome, Kalm's brome, prairie brome
             Bromus ciliatus L. var. laeviglumis Scribn. ex Shear
             Bromopsis kalmii (A.Gray) Holub
             Bromus purgans L., nom. rejic.
             Bromus purgans L. var. laeviglumis (Scribn. ex Shear) Swallen
  Genus: Calamagrostis
    Calamagrostis canadensis (Michx.) P.Beauv.*+
        blue-joint grass
    Calamagrostis canadensis (Michx.) P.Beauv. var. canadensis +
        big reed grass, blue-joint grass
             Calamagrostis anomala Suksd.
             Calamagrostis atropurpurea Nash
             Calamagrostis canadensis (Michx.) P.Beauv. var. acuminata Vasey ex Shear & Rydb.
             Calamagrostis canadensis (Michx.) P.Beauv. var. pallida (Vasey & Scribn.) Stebbins
             Calamagrostis canadensis (Michx.) P.Beauv. var. robusta Vasey
             Calamagrostis canadensis (Michx.) P.Beauv. var. typica Stebbins
             Calamagrostis expansa Rickett & Gilly var. robusta (Vasey) Stebbins
             Calamagrostis inexpansa A.Gray var. cuprea Kearney
             Calamagrostis inexpansa A.Gray var. robusta (Vasey) Stebbins
  Genus: Cinna
    Cinna latifolia (Trevir. ex Göpp.) Griseb.*+
        drooping wood-reed
  Genus: Dactylis
    Dactylis glomerata L.*+
        orchard grass
  Genus: Danthonia
    Danthonia spicata (L.) P.Beauv. ex Roem. & Schult.*+
        poverty danthonia, poverty grass, poverty oat grass
             Danthonia spicata (L.) P.Beauv. ex Roem. & Schult. var. longipila Scribn. & Merr.
             Danthonia spicata (L.) P.Beauv. ex Roem. & Schult. var. pinetorum Piper
             Danthonia thermalis Scribn.
  Genus: Dichanthelium
    Dichanthelium acuminatum (Sw.) Gould & C.A.Clark subsp. columbianum*+
        hemlock panic grass
             Dichanthelium columbianum (Scribn.) Freckmann
             Dichanthelium sabulorum (Lam.) Gould & C.A.Clark var. thinium (Hitchc. & Chase) Gould & C.A.Clark
             Panicum acuminatum Sw. var. columbianum (Scribn.) Lelong
             Panicum columbianum Scribn.
             Panicum heterophyllum Bosc ex Nees
             Panicum sabulorum Lam. var. thinium (Hitchc. & Chase) C.F.Reed
             Panicum tsugetorum Nash
             Panicum unciphyllum Trin. var. thinium Hitchc. & Chase
    Dichanthelium acuminatum (Sw.) Gould & C.A.Clark subsp. fasciculatum+
        western panic grass
             Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. fasciculatum (Torr.) Freckmann
             Dichanthelium lanuginosum (Elliott) Gould var. fasciculatum (Torr.) Spellenb.
             Panicum acuminatum Sw. var. fasciculatum (Torr.) Lelong
             Panicum brodiei H.St.John
             Panicum glutinoscabrum Fernald
             Panicum huachucae Ashe
             Panicum huachucae Ashe var. fasciculatum (Torr.) F.T.Hubb.
             Panicum languidum Hitchc.
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. fasciculatum (Torr.) Fernald
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. huachucae (Ashe) Hitchc.
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. septentrionale (Fernald) Fernald
             Panicum lanuginosum Elliott, non Bosc ex Spreng. var. tennesseense (Ashe) Gleason
             Panicum lassenianum Schmoll
             Panicum lindheimeri Nash var. fasciculatum (Torr.) Fernald
             Panicum occidentale Scribn.
             Panicum pacificum Hitchc. & Chase
             Panicum subvillosum Ashe
             Panicum tennesseense Ashe
  Genus: Elymus
    Elymus hystrix L. var. bigeloviana (Fernald) Bowden+
        Bigelow's bottlebrush grass, eastern bottlebrush grass
             Asperella hystrix (L.) Humb. var. bigeloviana Fernald
             Elymus hystrix L. f. bigelovianus (Fernald) Dore
             Hystrix patula Moench f. bigeloviana (Fernald) Gleason
             Hystrix patula Moench var. bigeloviana (Fernald) Deam
    Elymus hystrix L. var. hystrix *+
        bottlebrush grass, eastern bottlebrush grass, glumeless wild-rye
             Asperella hystrix (L.) Humb.
             Hystrix hystrix (L.) Millsp.
             Hystrix patula Moench
    Elymus trachycaulus (Link) Gould ex Shinners*+
        slender wheat grass
    Elymus trachycaulus (Link) Gould ex Shinners subsp. subsecundus+
        bearded wheat grass, slender wheat grass
             Agropyron caninum (L.) P.Beauv. var. unilaterale (Cassidy) C.L.Hitchc.
             Agropyron pauciflorum (Schwein.) Hitchc. ex Silvues var. glaucum (Pease & A.H.Moore) Taylor
             Agropyron subsecundum (Link) Hitchc.
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. ciliatum (Scribn. & J.G.Sm.) Malte
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. glaucum (Pease & A.H.Moore) Malte
             Agropyron trachycaulum (Link) Malte ex H.F.Lewis var. unilaterale (Cassidy) Malte
             Elymus trachycaulus (Link) Gould ex Shinners subsp. glaucus
             Elymus trachycaulus (Link) Gould ex Shinners var. unilateralis (Cassidy) Beetle
             Triticum subsecundum Link
    Elymus virginicus L. var. virginicus *+
        common eastern wild-rye, Virginia wild-rye
             Elymus australis Scribn. & Ball
             Elymus glabriflorus (Vasey) Scribn. & Ball
             Elymus hirsutiglumis Scribn.
             Elymus jejunus (Ramaley) Rydb.
             Elymus striatus Willd.
             Elymus virginicus L. var. australis (Scribn. & Ball) Hitchc.
             Elymus virginicus L. var. glabriflorus (Vasey) Bush
             Elymus virginicus L. var. hirsutiglumis (Scribn.) Hitchc.
             Elymus virginicus L. var. intermedius (Vasey) Bush
             Elymus virginicus L. var. jejunus (Ramaley) Bush
             Elymus virginicus L. var. typicus Fernald
             Elymus virginicus L. f. hirsutiglumis (Scribn.) Fernald var. typicus Fernald
  Genus: Elytrigia
    Elytrigia repens (L.) Desv. ex B.D.Jacks.*+
        couchgrass, creeping quackgrass, quackgrass
             Agropyron acadiense F.T.Hubb.
             Agropyron repens (L.) P.Beauv.
             Agropyron repens (L.) P.Beauv. var. repens
             Agropyron repens (L.) P.Beauv. f. aristatum (Schumach.) Holmb. var. repens
             Agropyron repens (L.) P.Beauv. f. pilosum (Scribn.) Fernald var. repens
             Agropyron repens (L.) P.Beauv. f. trichorrhachis Rohlena var. repens
             Agropyron repens (L.) P.Beauv. var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. setiferum Fernald var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. heberhachis Fernald var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. subulatum var. subulatum (Schreb.) Roem. & Schult.
             Agropyron repens (L.) P.Beauv. f. vaillantianum (Wulfen & Schreb.) Fernald var. subulatum (Schreb.) Roem. & Schult.
             Elymus repens (L.) Gould
             Elytrigia repens (L.) Desv. ex B.D.Jacks. var. repens
             Elytrigia repens (L.) Desv. ex B.D.Jacks. var. vaillantiana (Wulfen & Schreb.) Prokudin
             Triticum repens L.
  Genus: Festuca
    Festuca pratensis Huds.*+
        meadow fescue, meadow rye grass, rye grass
             Festuca elatior L., pro parte
             Lolium pratense (Huds.) Darbysh.
    Festuca subverticillata (Pers.) E.B.Alexeev*+
        nodding fescue
             Festuca obtusa Biehler
    Festuca trachyphylla (Hack.) Krajina*+
        hard fescue, sheep fescue
             Festuca cinerea auct. non Vill.
             Festuca duriuscula auct. non L.
             Festuca duriuscula L. var. cinerea auct. non (Vill.) Krajina
             Festuca longifolia auct. non Thuill.
             Festuca ovina L. var. duriuscula auct. non (L.) Koch
  Genus: Glyceria
    Glyceria borealis (Nash) Batch.*+
        northern manna grass
             Panicularia borealis Nash
    Glyceria canadensis (Michx.) Trin.*+
        rattlesnake grass, rattlesnake manna grass
             Panicularia canadensis (Michx.) Kuntze
    Glyceria grandis S.Watson*+
        American manna grass, reed manna grass
             Glyceria grandis S.Watson f. pallescens Fernald
             Glyceria grandis S.Watson var. grandis
             Glyceria maxima (Hartm.) Holmb. subsp. grandis
             Glyceria maxima (Hartm.) Holmb. var. americana (Torr.) B.Boivin
             Panicularia grandis (S.Watson) Nash
    Glyceria striata (Lam.) Hitchc.*+
        fowl manna grass, fowl meadow grass
             Glyceria nervata (Willd.) Trin.
             Glyceria striata (Lam.) Hitchc. var. stricta (Scribn.) Fernald
             Glyceria striata (Lam.) Hitchc. var. striata
             Panicularia nervata (Willd.) Kuntze
             Panicularia nervata (Willd.) Kuntze var. parviglumis Scribn. & Merr.
             Poa nervata Willd.
  Genus: Hordeum
    Hordeum jubatum L.*+
        foxtail barley, squirrel-tail grass
             Critesion jubatum (L.) Nevski
             Hordeum caespitosum Scribn. ex Pammel
             Hordeum jubatum L. subsp. jubatum
             Hordeum jubatum L. var. caespitosum (Scribn. ex Pammel) Hitchc.
  Genus: Leersia
    Leersia oryzoides (L.) Sw.*+
        rice cut grass
             Homalocenchrus oryzoides (L.) Pollich
             Leersia oryzoides (L.) Sw. f. glabra A.A.Eaton
             Leersia oryzoides (L.) Sw. f. inclusa (Wiesb.) Dörfl.
             Phalaris oryzoides L.
  Genus: Melica
    Melica smithii (Porter ex A.Gray) Vasey+
        Smith's melic grass
             Avena smithii Porter ex A.Gray
             Bromelica smithii (Porter ex A.Gray) Farw.
  Genus: Milium
    Milium effusum L.*+
        American millet grass, wood millet
             Milium effusum L. var. cisatlanticum Fernald
  Genus: Muhlenbergia
    Muhlenbergia glomerata (Willd.) Trin.*+
        marsh muhly, marsh wild-Timothy, spiked muhly
             Muhlenbergia glomerata (Willd.) Trin. var. cinnoides (Link) F.J.Herm.
             Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb. var. cinnoides (Link) B.Boivin
    Muhlenbergia mexicana (L.) Trin.*+
        leafy satin grass, Mexican muhly, wire-stem muhly
             Agrostis mexicana L.
             Muhlenbergia ambigua Torr.
             Muhlenbergia foliosa (Roem. & Schult.) Trin.
             Muhlenbergia foliosa (Roem. & Schult.) Trin. subsp. ambigua
             Muhlenbergia foliosa (Roem. & Schult.) Trin. subsp. setiglumis
             Muhlenbergia mexicana (L.) Trin. f. ambigua (Torr.) Fernald
             Muhlenbergia mexicana (L.) Trin. f. mexicana
             Muhlenbergia mexicana (L.) Trin. f. setiglumis (S.Watson) Fernald
             Muhlenbergia mexicana (L.) Trin. var. filiformis (Willd.) Scribn.
  Genus: Oryzopsis
    Oryzopsis asperifolia Michx.*+
        rough-leaved rice grass
  Genus: Panicum
    Panicum capillare L. subsp. capillare*+
        common witch grass, old-witch grass, witch grass
             Panicum barbipulvinatum Nash
             Panicum capillare L. subsp. barbipulvinatum
             Panicum capillare L. var. barbipulvinatum (Nash) McGregor
             Panicum capillare L. var. brevifolium Vasey ex Rydb. & Shear
             Panicum capillare L. var. occidentale Rydb.
    Panicum philadelphicum Bernh. ex Trin. subsp. philadelphicum*
        Philadephia panic grass
             Panicum philadelphicum Bernh. ex Trin. var. tuckermanii (Fernald) Steyerm. & Schmoll
             Panicum tuckermanii Fernald
  Genus: Phalaris
    Phalaris arundinacea L.*+
        reed canary grass
             Phalaroides arundinacea (L.) Raeusch.
             Phalaris arundinacea L. f. variegata (Parn.) Druce
             Phalaris arundinacea L. var. picta L.
             Phalaroides arundinacea (L.) Raeusch. var. picta (L.) Tzvelev
  Genus: Phleum
    Phleum pratense L. subsp. pratense*+
        common timothy, timothy
  Genus: Phragmites
    Phragmites australis (Cav.) Trin. ex Steud.*+
        common reed, common reed grass
             Phragmites australis (Cav.) Trin. ex Steud. var. berlandieri (E.Fourn.) C.F.Reed
             Phragmites communis Trin.
             Phragmites communis Trin. subsp. berlandieri
             Phragmites communis Trin. var. berlandieri (E.Fourn.) Fernald
             Phragmites phragmites (L.) H.Karst.
  Genus: Poa
    Poa palustris L.*
        fowl meadow grass, marsh bluegrass
             Poa crocata Michx.
             Poa triflora Gilib.
    Poa pratensis L.*
        Kentucky bluegrass
             Poa agassizensis B.Boivin & D.Löve
             Poa alpigena (Fr. ex Blytt) Lindm.
             Poa alpigena (Fr. ex Blytt) Lindm. subsp. colpodea
             Poa alpigena (Fr. ex Blytt) Lindm. var. colpodea (Fr. ex Blytt) Schol.
             Poa angustifolia L.
             Poa pratensis L. subsp. agassizensis
             Poa pratensis L. subsp. alpigena
             Poa pratensis L. subsp. angustifolia
             Poa pratensis L. subsp. colpodea
             Poa pratensis L. var. angustifolia (L.) Gaudin
             Poa pratensis L. var. alpigena Fr. ex Blytt
             Poa pratensis L. var. colpodea (Fr. ex Blytt) Schol.
             Poa pratensis L. var. domestica Laest.
             Poa pratensis L. var. gelida (Roem. & Schult.) Böcher
             Poa pratensis L. var. iantha Wahlenb.
             Poa pratensis L. var. vivipara (Malmgren) B.Boivin
    Poa saltuensis Fernald & Wiegand*
        woodland bluegrass
             Poa debilis Torr.
             Poa saltuensis Fernald & Wiegand var. microlepis Fernald & Wiegand
  Genus: Schizachne
    Schizachne purpurascens (Torr.) Swallen*+
        false melic grass
             Avena torreyi Nash
             Melica purpurascens (Torr.) Hitchc.
             Schizachne purpurascens (Torr.) Swallen var. pubescens Dore
             Schizachne purpurascens (Torr.) Swallen var. purpurascens
             Schizachne striata (Michx.) Hultén
             Trisetum purpurascens Torr.
  Genus: Setaria
    Setaria viridis (L.) P.Beauv. var. viridis +
        green bristle grass, green foxtail
             Chaetochloa viridis (L.) Scribn.
             Panicum viride L.
             Setaria viridis (L.) P.Beauv. var. breviseta (Döll) Hitchc.
             Setaria viridis (L.) P.Beauv. var. robustaalba Schreib.
             Setaria viridis (L.) P.Beauv. var. weinmannii (Roem. & Schult.) Borbás
  Genus: Sorghastrum
    Sorghastrum nutans (L.) Nash*+
        yellow Indian grass
             Andropogon nutans L.
             Sorghastrum avenaceum (Michx.) Nash
  Genus: Sphenopholis
    Sphenopholis intermedia (Rydb.) Rydb.*+
        slender wedge grass
             Eatonia intermedia Rydb.
             Sphenopholis intermedia (Rydb.) Rydb. var. pilosa Dore
             Sphenopholis obtusata (Michx.) Scribn. var. major (Torr.) Erdman
  Genus: Sporobolus
    Sporobolus vaginiflorus (Torr. ex A.Gray) A.W.Wood var. vaginiflorus *+
        poverty grass, poverty drop-seed, sheathed drop-seed
             Sporobolus vaginiflorus (Torr. ex A.Gray) A.W.Wood var. inaequalis Fernald
Family: Polygalaceae
  Genus: Polygala
    Polygala paucifolia Willd.*+
        flowering-wintergreen, fringed polygala, gay-wings
             Triclisperma paucifolia (Willd.) Nieuwl.
Family: Polygonaceae
  Genus: Polygonum
    Polygonum amphibium L.*+
        water heart's-ease, water smartweed
    Polygonum amphibium L. var. stipulaceum N.Coleman*+
        water heart's-ease, water smartweed
             Persicaria amphibia (L.) S.F.Gray var. stipulacea (N.Coleman) Hara
             Persicaria mesochora Greene
             Persicaria nebraskensis Greene
             Polygonum amphibium L. f. hirtuosum Farw.
             Polygonum amphibium L. subsp. laevimarginatum
             Polygonum amphibium L. var. hartwrightii (A.Gray) Bissell
             Polygonum amphibium L. f. fluitans (Eaton) Fernald var. stipulaceum N.Coleman
             Polygonum amphibium L. f. hirtuosum (Farw.) Fernald var. stipulaceum N.Coleman
             Polygonum amphibium L. f. simile Fernald var. stipulaceum N.Coleman
             Polygonum coccineum Muhl. ex Willd. var. rigidulum (E.Sheld.) Stanford
             Polygonum fluitans Eaton
             Polygonum hartwrightii A.Gray
             Polygonum inundatum Raf.
             Polygonum natans Eaton
             Polygonum natans Eaton f. genuinum Stanford
             Polygonum natans Eaton f. hartwrightii (A.Gray) Stanford
             Polygonum natans Eaton f. natans
    Polygonum aviculare L.*+
        common knotweed, prostrate knotweed
             Polygonum aviculare L. var. vegetum Ledeb.
             Polygonum heterophyllum Lindm.
             Polygonum monspeliense Pers.
    Polygonum cilinode Michx.*+
        black-fringe bindweed, fringed bindweed
             Bilderdykia cilinodis (Michx.) Greene
             Bilderdykia cilinodis (Michx.) Greene var. laevigata (Fernald) C.F.Reed
             Fallopia cilinodis (Michx.) Holub
             Polygonum cilinode Michx. f. erectum (Peck) Fernald
             Polygonum cilinode Michx. var. erectum Peck
             Polygonum cilinode Michx. var. laevigatum Fernald
             Reynoutria cilinodis (Michx.) Shinners
             Tiniaria cilinodis (Michx.) Small
    Polygonum convolvulus L.*+
        black-bindweed, false buckwheat
             Bilderdykia convolvulus (L.) Dumort.
             Fallopia convolvulus (L.) A.Löve
             Polygonum convolvulus L. var. convolvulus
             Reynoutria convolvulus (L.) Shinners
             Tiniaria convolvulus (L.) Webb. & Moq.
    Polygonum hydropiper L.*+
        marsh-pepper knotweed, water-pepper
             Persicaria hydropiper (L.) Opiz
             Polygonum hydropiper L. var. projectum Stanford
    Polygonum pensylvanicum L.*+
        Pennsylvania knotweed, Pennsylvania smartweed, pinkweed
             Persicaria bicornis (Raf.) Nieuwl.
             Persicaria longistyla (Small) Small
             Persicaria mississippiensis (Stanford) Small
             Persicaria pensylvanica (L.) M.Gómez
             Persicaria pensylvanica (L.) M.Gómez var. dura (Stanford) C.F.Reed
             Polygonum bicorne Raf.
             Polygonum longistylum Small
             Polygonum longistylum Small var. omissum (Greene) Stanford
             Polygonum mexicanum auct. non Small
             Polygonum mississippiense Stanford
             Polygonum mississippiense Stanford var. interius Stanford
             Polygonum omissum Greene
             Polygonum pensylvanicum L. var. durum Stanford
             Polygonum pensylvanicum L. var. eglandulosum J.C.Myers
             Polygonum pensylvanicum L. var. genuinum Fernald
             Polygonum pensylvanicum L. var. laevigatum Fernald
             Polygonum pensylvanicum L. f. albineum Farw. var. laevigatum Fernald
             Polygonum pensylvanicum L. f. pallescens Stanford var. laevigatum Fernald
             Polygonum pensylvanicum L. var. rosaeflorum Norton
    Polygonum sagittatum L.*+
        arrow-leaved tear-thumb
             Polygonum sagittatum L. var. gracilentum Fernald
             Tracaulon sagittatum (L.) Small
             Tracaulon sagittatum (L.) Small var. gracilentum (Fernald) C.F.Reed
             Truellum sagittatum (L.) Soják
  Genus: Rumex
    Rumex acetosella L.*+
        common sheep sorrel, field sorrel, red sorrel, sheep sorrel
             Acetosella acetosella (L.) Small
             Acetosella tenuifolia (Wallr.) A.Löve
             Acetosella vulgaris (Koch) Fourr.
             Rumex acetosella L. subsp. angiocarpus
             Rumex acetosella L. var. pyrenaeus (Pourr.) Timb.-Lagr.
             Rumex acetosella L. var. tenuifolius Wallr.
             Rumex angiocarpus Murb.
             Rumex tenuifolius (Wallr.) A.Löve
    Rumex obtusifolius L.*+
        bitter dock
             Acetosa oblongifolia (L.) A.Löve & D.Löve
             Rumex obtusifolius L. subsp. agrestis
             Rumex obtusifolius L. subsp. sylvestris
             Rumex obtusifolius L. var. sylvestris (Wallr.) Koch
Family: Polypodiaceae
  Genus: Polypodium
    Polypodium virginianum L.*+
        common polypody, rock-cap fern, rock polypody
             Polypodium vinlandicum A.Löve & D.Löve
             Polypodium vulgare auct. pro parte, non L.
             Polypodium vulgare L. var. americanum Hook.
             Polypodium vulgare L. var. virginianum (L.) D.C.Eaton
Family: Pontederiaceae
  Genus: Heteranthera
    Heteranthera dubia (Jacq.) MacMill.*+
        water star-grass
             Commelina dubia Jacq.
             Heteranthera graminea (Michx.) Vahl
             Heteranthera liebmannii (Buchenau) Shinners
             Schollera graminea (Michx.) Raf.
             Zosterella dubia (Jacq.) Small
             Zosterella longituba Alexander
  Genus: Pontederia
    Pontederia cordata L.*+
        pickerel-weed
             Narukila cordata (L.) Nieuwl.
             Pontederia angustifolia Pursh
             Pontederia cordata L. f. latifolia (Raf.) House
             Pontederia cordata L. f. taenia Fassett
             Pontederia cordata L. var. angustifolia (Pursh) Torr. & Elliott
             Pontederia cordata L. var. cordata
             Pontederia cordata L. var. lanceolata (Nutt.) Griseb.
             Pontederia cordata L. var. lancifolia (Muhl.) Torr.
             Pontederia lanceolata Nutt.
             Pontederia lancifolia Muhl.
             Unisema cordata (L.) Farw.
Family: Portulacaceae
  Genus: Claytonia
    Claytonia caroliniana Michx.*+
        Carolina spring-beauty, spring-beauty
             Claytonia caroliniana Michx. var. lewisii McNeill
             Claytonia caroliniana Michx. var. caroliniana
             Claytonia caroliniana Michx. var. spatulifolia (Salisb.) W.H.Lewis
Family: Potamogetonaceae
  Genus: Potamogeton
    Potamogeton alpinus Balb.*+
        alpine pondweed, red pondweed
             Potamogeton alpinus Balb. subsp. tenuifolius
             Potamogeton alpinus Balb. var. alpinus
             Potamogeton alpinus Balb. var. subellipticus (Fernald) Ogden
             Potamogeton alpinus Balb. var. tenuifolius (Raf.) Ogden
             Potamogeton tenuifolius Raf.
             Potamogeton tenuifolius Raf. var. subellipticus Fernald
    Potamogeton amplifolius Tuck.*+
        big-leaved pondweed, broad-leaved pondweed, large-leaved pondweed
    Potamogeton epihydrus Raf.*+
        ribbon-leaf pondweed, ribbon-leaved pondweed
             Potamogeton epihydrus Raf. subsp. nuttallii
             Potamogeton epihydrus Raf. var. cayugensis (Wiegand) A.Benn.
             Potamogeton epihydrus Raf. var. nuttallii (Cham. & Schltdl.) Fernald
             Potamogeton epihydrus Raf. var. ramosus (Peck) House
             Potamogeton epihydrus Raf. var. typicus Fernald
    Potamogeton foliosus Raf. subsp. foliosus*+
        leafy pondweed
             Potamogeton curtissii Morong
             Potamogeton foliosus Raf. var. foliosus
             Potamogeton foliosus Raf. var. genuinus Fernald
             Potamogeton foliosus Raf. var. macellus Fernald
    Potamogeton friesii Rupr.*+
        Fries's pondweed
    Potamogeton gramineus L.*+
        grass-leaved pondweed, variable-leaved pondweed
             Potamogeton gramineus L. var. graminifolius Fr.
             Potamogeton gramineus L. var. maximus Morong ex A.Benn.
             Potamogeton gramineus L. var. myriophyllus J.W.Robbins
             Potamogeton gramineus L. var. typicus Ogden
             Potamogeton heterophyllus auct. non Schreb.
    Potamogeton natans L.*+
        common pondweed, floating pondweed, floating-leaf pondweed
    Potamogeton nodosus Poir.*+
        long-leaf pondweed, long-leaved pondweed
             Potamogeton americanus Cham. & Schltdl.
             Potamogeton fluitans auct. non Roth
    Potamogeton oakesianus J.W.Robbins+
        Oakes' pondweed
    Potamogeton obtusifolius Mert. & W.D.J.Koch*+
        blunt-leaved pondweed
    Potamogeton praelongus Wulfen*+
        white-stemmed pondweed
             Potamogeton praelongus Wulfen var. angustifolius Graebn.
    Potamogeton pusillus L.+
        slender pondweed, small pondweed
             Potamogeton lateralis auct. pro parte, non Morong
    Potamogeton pusillus L. subsp. tenuissimus*+
        narrow-leaved small pondweed, slender pondweed, small pondweed
             Potamogeton berchtoldii Fieber
             Potamogeton berchtoldii Fieber var. acuminatus Fieber
             Potamogeton berchtoldii Fieber var. berchtoldii
             Potamogeton berchtoldii Fieber var. colpophilus (Fernald) Fernald
             Potamogeton berchtoldii Fieber var. lacunatus (Hagstr.) Fernald
             Potamogeton berchtoldii Fieber var. mucronatus Fieber
             Potamogeton berchtoldii Fieber var. polyphyllus (Morong) Fernald
             Potamogeton berchtoldii Fieber var. tenuissimus (Mert. & W.D.J.Koch) Fernald
             Potamogeton pusillus L. var. mucronatus (Fieber) Graebn.
             Potamogeton pusillus L. var. tenuissimus Mert. & W.D.J.Koch
    Potamogeton richardsonii (A.Benn.) Rydb.*+
        Richardson's pondweed
             Potamogeton perfoliatus L. subsp. richardsonii
             Potamogeton perfoliatus L. var. richardsonii A.Benn.
    Potamogeton robbinsii Oakes*+
        fern pondweed, Robbins' pondweed
             Potamogeton robbinsii Oakes f. cultellatus Fassett
    Potamogeton spirillus Tuck.*+
        northern snail-seed pondweed, spiral-fruited pondweed
             Potamogeton dimorphus Raf., misapplied
    Potamogeton zosteriformis Fernald*+
        flat-stem pondweed, flat-stemmed pondweed
             Potamogeton compressus auct. non L.
             Potamogeton zosterifolius auct. non Schumach.
             Potamogeton zosterifolius Schumach. subsp. zosteriformis
             Potamogeton zosterifolius Schumach. var. americanus A.Benn.
Family: Primulaceae
  Genus: Lysimachia
    Lysimachia ciliata L.*+
        fringed loosestrife
             Steironema ciliatum (L.) Baudo
             Steironema pumilum Greene
    Lysimachia terrestris (L.) Britton, Sterns & Poggenb.*+
        bulbil loosestrife, swamp-candles, swamp loosestrife
             Lysimachia stricta Aiton var. ovata E.L.Rand & Redfield
             Lysimachia terrestris (L.) Britton, Sterns & Poggenb. f. florifera B.Boivin
             Lysimachia terrestris (L.) Britton, Sterns & Poggenb. var. ovata (E.L.Rand & Redfield) Fernald
    Lysimachia thyrsiflora L.*+
        swamp loosestrife, tufted loosestrife
             Naumburgia thyrsiflora (L.) Rchb.
  Genus: Trientalis
    Trientalis borealis Raf. subsp. borealis*+
        American starflower
             Trientalis americana Pursh
Family: Pteridaceae
  Genus: Adiantum
    Adiantum pedatum L.*+
        maidenhair fern, northern maidenhair fern
Family: Pyrolaceae
  Genus: Chimaphila
    Chimaphila umbellata (L.) W.P.C.Barton subsp. cisatlantica*+
        pipsissewa, prince's-pine
             Chimaphila corymbosa Pursh
             Chimaphila umbellata (L.) W.P.C.Barton var. cisatlantica S.F.Blake
  Genus: Moneses
    Moneses uniflora (L.) A.Gray subsp. uniflora*+
        one-flowered pyrola, one-flowered shin-leaf, one-flowered wood-nymph, single delight
             Pyrola uniflora L.
  Genus: Orthilia
    Orthilia secunda (L.) House*+
        one-sided shin-leaf, one-sided wintergreen
             Orthilia secunda (L.) House subsp. obtusata
             Orthilia secunda (L.) House var. obtusata (Turcz.) House
             Pyrola secunda L.
             Pyrola secunda L. subsp. obtusata
             Pyrola secunda L. var. obtusata Turcz.
             Pyrola secunda L. var. secunda
             Ramischia elatior Rydb.
             Ramischia secunda (L.) Garcke
  Genus: Pyrola
    Pyrola chlorantha Sw.*+
        green-flowered wintergreen, shin-leaf
             Pyrola chlorantha Sw. var. convoluta (W.P.C.Barton) Fernald
             Pyrola chlorantha Sw. var. paucifolia Fernald
             Pyrola chlorantha Sw. var. revoluta Jenn.
             Pyrola chlorantha Sw. var. saximontana Fernald
             Pyrola convoluta W.P.C.Barton
             Pyrola virens Schweigg.
             Pyrola virens Schweigg. f. paucifolia (Fernald) Fernald
             Pyrola virens Schweigg. var. convoluta (W.P.C.Barton) Fernald
             Pyrola virens Schweigg. var. saximontana (Fernald) Fernald
             Pyrola virens Schweigg. var. virens
    Pyrola elliptica Nutt.*+
        elliptic shin-leaf, large-leaved shin-leaf, wax-flower shin-leaf
             Pyrola compacta Jenn.
Family: Ranunculaceae
  Genus: Actaea
    Actaea pachypoda Elliott*+
        doll's-eyes, white baneberry
             Actaea alba auct. non (L.) Mill.
             Actaea pachypoda Elliott f. microcarpa (DC.) Fassett
             Actaea pachypoda Elliott f. rubrocarpa (Killip) Fernald
    Actaea rubra (Aiton) Willd.*+
        red baneberry
             Actaea arguta Nutt.
             Actaea arguta Nutt. var. viridiflora (Greene) Tidestr.
             Actaea eburnea Rydb.
             Actaea neglecta Gillman
             Actaea rubra (Aiton) Willd. f. neglecta (Gillman) B.L.Rob.
             Actaea rubra (Aiton) Willd. subsp. arguta
             Actaea rubra (Aiton) Willd. subsp. rubra
             Actaea rubra (Aiton) Willd. var. arguta (Nutt.) Lawson
             Actaea rubra (Aiton) Willd. var. dissecta Britton
             Actaea rubra (Aiton) Willd. var. gigantea R.R.Gates
             Actaea spicata L. subsp. rubra
             Actaea spicata L. var. arguta (Nutt.) Torr.
             Actaea spicata L. var. rubra Aiton
             Actaea viridiflora Greene
  Genus: Anemone
    Anemone americana (DC.) H.Hara*+
        round-lobed hepatica
             Anemone hepatica L.
             Hepatica americana (DC.) Ker Gawl.
             Hepatica hepatica (L.) H.Karst.
             Hepatica nobilis S