Taxons du Canada selon le GRIN
Taxons du Canada selon le GRIN
Abies
amabilis Douglas ex J. Forbes
[Pinaceae]
Synonymies:
Pinus amabilis Douglas
Abies
balsamea (L.) Mill.
[Pinaceae]
Synonymies:
Abies balsamea f. nana (J. Nelson) Beissner
Abies balsamea f. phanerolepis (Fernald) Rehder
Abies balsamea var. phanerolepis Fernald
Abies x phanerolepis (Fernald) Tang S. Liu
Abies
bifolia A. Murray bis
[Pinaceae]
Abies
grandis (Douglas ex D. Don)
Lindl. [Pinaceae]
Synonymies:
Picea grandis Douglas ex Loudon
Pinus grandis Douglas ex D. Don
Abies
lasiocarpa (Hook.) Nutt.
[Pinaceae]
Synonymies:
Pinus lasiocarpa Hook.
Abronia
umbellata Lam.
[Nyctaginaceae]
Abronia
umbellata subsp.
umbellata
[Nyctaginaceae]
Acalypha
rhomboidea Raf.
[Euphorbiaceae]
Acer
circinatum Pursh
[Aceraceae]
Acer
glabrum Torr.
[Aceraceae]
Acer
glabrum subsp. douglasii
(Hook.) Wesm. [Aceraceae]
Synonymies:
Acer douglasii Hook.
Acer
macrophyllum Pursh
[Aceraceae]
Acer
negundo L.
[Aceraceae]
Synonymies:
Acer negundo f. auratum Späth ex Schwer.
Acer negundo f. aureovariegatum (Wesm.) Späth ex Schwer.
Acer negundo var. variegatum Jacques
Acer negundo var. violaceum (G. Kirchn.) H. Jaeger
Rulac negundo Hitchc.
Acer
negundo subsp. negundo
[Aceraceae]
Acer
pensylvanicum L.
[Aceraceae]
Synonymies:
Acer striatum Du Roi
Acer
rubrum L.
[Aceraceae]
Acer
saccharinum L.
[Aceraceae]
Acer
saccharum Marshall
[Aceraceae]
Synonymies:
Acer sacccharophorum K. Koch
Acer
saccharum subsp. nigrum
(F. Michx.) Desmarais [Aceraceae]
Synonymies:
Acer nigrum F. Michx.
Acer
saccharum subsp.
saccharum
[Aceraceae]
Synonymies:
Acer rugelii Pax
Acer saccharum var. rugelii (Pax) Rehder
Acer
spicatum Lam.
[Aceraceae]
Achillea
millefolium L.
[Asteraceae]
Synonymies:
Achillea borealis Bong.
Achillea lanulosa Nutt.
Achillea magna auct.
Achillea millefolium subsp. borealis (Bong.) Breitung
Achillea millefolium subsp. lanulosa (Nutt.) Piper
Achlys
triphylla (Sm.) DC.
[Berberidaceae]
Synonymies:
Leontice triphylla Sm.
Achnatherum
hymenoides (Roem. &
Schult.) Barkworth [Poaceae]
Synonymies:
Eriocoma cuspidata Nutt.
Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper
Stipa hymenoides Roem. & Schult.
Achnatherum
lemmonii (Vasey) Barkworth
[Poaceae]
Synonymies:
Stipa lemmonii (Vasey) Scribn.
Achnatherum
nelsonii (Scribn.) Barkworth
[Poaceae]
Achnatherum
nelsonii subsp. dorei
(Barkworth & J. Maze) Barkworth [Poaceae]
Synonymies:
Stipa columbiana auct.
Stipa nelsonii subsp. dorei Barkworth & J. Maze
Achnatherum
richardsonii (Link) Barkworth
[Poaceae]
Synonymies:
Stipa richardsonii Link
Aconitum
columbianum Nutt.
[Ranunculaceae]
Aconitum
columbianum subsp.
columbianum
[Ranunculaceae]
Synonymies:
Aconitum columbianum var. bakeri (Greene) H. D. Harr.
Aconitum noveboracense A. Gray ex Coville
Aconitum uncinatum subsp. noveboracense (A. Gray ex Coville) Hardin
Acorus
calamus L.
[Acoraceae]
Actaea
pachypoda Elliott
[Ranunculaceae]
Synonymies:
Actaea alba auct.
Actaea
racemosa L.
[Ranunculaceae]
Synonymies:
Cimicifuga racemosa (L.) Nutt.
Actaea
rubra (Aiton) Willd.
[Ranunculaceae]
Synonymies:
Actaea spicata var. erythrocarpa Fisch.
Actaea
rubra f. neglecta (Gillman) B.
L. Rob. [Ranunculaceae]
Synonymies:
Actaea neglecta Gillman
Adiantum
aleuticum (Rupr.) Parris
[Pteridaceae]
Synonymies:
Adiantum pedatum subsp. aleuticum (Rupr.) Calder & Roy L. Taylor
Adiantum
capillus-veneris L.
[Pteridaceae]
Adiantum
pedatum L.
[Pteridaceae]
Adlumia
fungosa (Aiton) Greene ex
Britton et al. [Papaveraceae]
Synonymies:
Adlumia cirrhosa Raf.
Fumaria fungosa Aiton
Agastache
foeniculum (Pursh) Kuntze
[Lamiaceae]
Synonymies:
Stachys foeniculum Pursh
Agastache
nepetoides (L.) Kuntze
[Lamiaceae]
Synonymies:
Hyssopus nepetoides L.
Agastache
urticifolia (Benth.) Kuntze
[Lamiaceae]
Synonymies:
Lophanthus urticifolius Benth.
Ageratina
altissima (L.) R. M. King &
H. Rob. [Asteraceae]
Synonymies:
Ageratum altissimum L.
Eupatorium rugosum Houtt.
X
Agroelymus bowdenii B. Boivin
[Poaceae]
X
Agroelymus doreii Bowden
[Poaceae]
Agrostis
aequivalvis (Trin.) Trin.
[Poaceae]
Synonymies:
Agrostis canina var. aequivalvis Trin.
Podagrostis aequivalvis (Trin.) Scribn. & Merr.
Agrostis
exarata Trin.
[Poaceae]
Agrostis
idahoensis Nash
[Poaceae]
Agrostis
mertensii Trin.
[Poaceae]
Agrostis
microphylla Steud.
[Poaceae]
Agrostis
perennans (Walter) Tuck.
[Poaceae]
Synonymies:
Cornucopiae perennans Walter
Agrostis
scabra Willd.
[Poaceae]
Agrostis
thurberiana Hitchc.
[Poaceae]
Synonymies:
Podagrostis thurberiana (Hitchc.) Hultén
Aletris
farinosa L.
[Liliaceae]
Allium
canadense L.
[Liliaceae]
Allium
cernuum Roth
[Liliaceae]
Allium
geyeri S. Watson
[Liliaceae]
Allium
geyeri var. tenerum M.
E. Jones [Liliaceae]
Allium
schoenoprasum L.
[Liliaceae]
Synonymies:
Allium schoenoprasum var. alpinum DC.
Allium
tricoccum Aiton
[Liliaceae]
Allium
validum S. Watson
[Liliaceae]
Alnus
incana (L.) Moench
[Betulaceae]
Alnus
incana subsp. rugosa (Du
Roi) R. T. Clausen [Betulaceae]
Synonymies:
Alnus americana (Regel) Czerep.
Alnus glauca F. Michx.
Alnus incana var. americana Regel
Alnus rugosa (Du Roi) Spreng.
Alnus rugosa var. americana (Regel) Fernald
Betula alnus var. rugosa Du Roi
Betula rugosa (Du Roi) Ehrh.
Alnus
incana subsp. tenuifolia
(Nutt.) Breitung [Betulaceae]
Synonymies:
Alnus tenuifolia Nutt.
Alnus
rubra Bong.
[Betulaceae]
Synonymies:
Alnus oregona Nutt.
Alnus
rugosa var. americana (Regel)
Fernald
Synonym of Alnus
incana subsp. rugosa (Du
Roi) R. T. Clausen
Alnus
serrulata (Aiton) Willd.
[Betulaceae]
Alnus
viridis subsp. crispa
(Aiton) Turrill [Betulaceae]
Synonymies:
Alnus crispa (Aiton) Pursh
Alnus crispa var. mollis (Fernald) Fernald
Alnus
viridis subsp. fruticosa
(Rupr.) Nyman [Betulaceae]
Synonymies:
Alnus fruticosa Rupr.
Alnus
viridis subsp. sinuata
(Regel) Á. Löve & D. Löve
[Betulaceae]
Synonymies:
Alnaster sinuatus (Regel) Czerep.
Alnus crispa subsp. sinuata (Regel) Hultén
Alnus sinuata (Regel) Rydb.
Alnus sitchensis (Regel) Sarg.
Alopecurus
aequalis Sobol.
[Poaceae]
Alopecurus
borealis Trin.
[Poaceae]
Synonymies:
Alopecurus alpinus Sm.
Alopecurus alpinus subsp. glaucus (Less.) Hultén
Alopecurus glaucus Less.
Alopecurus
geniculatus L.
[Poaceae]
Amaranthus
albus L.
[Amaranthaceae]
Amaranthus
californicus (Moq.) S. Watson
[Amaranthaceae]
Synonymies:
Mengea californica Moq.
Amaranthus
powellii S. Watson
[Amaranthaceae]
Synonymies:
Amaranthus bouchonii Thell.
Amaranthus
retroflexus L.
[Amaranthaceae]
Amaranthus
tuberculatus (Moq.) J. D. Sauer
[Amaranthaceae]
Synonymies:
Acnida tuberculata Moq.
Ambrosia
artemisiifolia L.
[Asteraceae]
Ambrosia
psilostachya DC.
[Asteraceae]
Synonymies:
Ambrosia coronopifolia Torr. & A. Gray
Ambrosia
trifida L.
[Asteraceae]
Amelanchier
alnifolia (Nutt.) Nutt. ex M.
Roem. [Rosaceae]
Synonymies:
Amelanchier florida Lindl.
Aronia alnifolia Nutt.
Amelanchier
alnifolia var. cusickii
(Fernald) C. L. Hitchc. [Rosaceae]
Amelanchier
arborea (F. Michx.) Fernald
[Rosaceae]
Synonymies:
Mespilus arborea F. Michx.
Amelanchier
bartramiana (Tausch) M. Roem.
[Rosaceae]
Synonymies:
Amelanchier oligocarpa (Michx.) M. Roem.
Amelanchier
canadensis (L.) Medik.
[Rosaceae]
Synonymies:
Mespilus canadensis L.
Amelanchier
humilis Wiegand
[Rosaceae]
Amelanchier
x intermedia Spach
[Rosaceae]
Amelanchier
laevis Wiegand
[Rosaceae]
Amelanchier
sanguinea (Pursh) DC.
[Rosaceae]
Synonymies:
Amelanchier huronensis Wiegand
Pyrus sanguinea Pursh
Amelanchier
spicata (Lam.) K. Koch
[Rosaceae]
Synonymies:
Amelanchier stolonifera Wiegand
Amelanchier
x wiegandii E. L. Nielsen
[Rosaceae]
Ammophila
breviligulata Fernald
[Poaceae]
Amorpha
canescens Pursh
[Fabaceae]
Synonymies:
Amorpha brachycarpa E. J. Palmer
Amorpha
fruticosa L.
[Fabaceae]
Synonymies:
Amorpha fruticosa f. crispa (G. Kirchn.) C. K. Schneid.
Amorpha fruticosa var. angustifolia Pursh
Amorpha fruticosa var. crispa G. Kirchn.
Amorpha virgata Small
Amorpha
nana Nutt.
[Fabaceae]
Amphicarpaea
bracteata (L.) Fernald
[Fabaceae]
Synonymies:
Amphicarpaea monoica (L.) Elliott
Amsinckia
intermedia Fisch. & C. A.
Mey. [Boraginaceae]
Amsinckia
lycopsoides Lehm.
[Boraginaceae]
Anaphalis
margaritacea (L.) Benth.
[Asteraceae]
Andropogon
gerardii Vitman
[Poaceae]
Synonymies:
Andropogon furcatus Muhl.
Andropogon
hallii Hack.
[Poaceae]
Synonymies:
Andropogon gerardii var. chrysocomus (Nash) Fernald
Andropogon gerardii var. paucipilus (Nash) Fernald
Andropogon
virginicus L.
[Poaceae]
Anemone
acutiloba (DC.) G. Lawson
[Ranunculaceae]
Synonymies:
Hepatica nobilis var. acuta (Pursh) Steyerm.
Anemone
americana (DC.) Hara
[Ranunculaceae]
Synonymies:
Hepatica nobilis var. obtusa (Pursh) Steyerm.
Anemone
canadensis L.
[Ranunculaceae]
Anemone
cylindrica A. Gray
[Ranunculaceae]
Anemone
multifida Poir.
[Ranunculaceae]
Anemone
narcissiflora L.
[Ranunculaceae]
Anemone
narcissiflora subsp.
sibirica (L.) Hultén
[Ranunculaceae]
Synonymies:
Anemone sibirica L.
Anemone
occidentalis S. Watson
[Ranunculaceae]
Synonymies:
Pulsatilla occidentalis (S. Watson) Freyn
Anemone
patens L.
[Ranunculaceae]
Synonymies:
Pulsatilla patens (L.) Mill.
Anemone
patens var. multifida
Pritz. [Ranunculaceae]
Synonymies:
Anemone nuttalliana DC.
Anemone patens var. wolfgangiana (Besser) K. Koch
Anemone wolfgangiana Besser
Pulsatilla patens subsp. multifida (Pritz.) Zämelis
Pulsatilla patens var. wolfgangiana (Besser) Regel
Anemone
virginiana L.
[Ranunculaceae]
Anemone
virginiana var. alba
(Oakes) A. W. Wood [Ranunculaceae]
Synonymies:
Anemone cylindrica var. alba Oakes
Anemone riparia Fernald
Angelica
arguta Nutt. ex Torr. & A.
Gray [Apiaceae]
Angelica
atropurpurea L.
[Apiaceae]
Angelica
lucida L.
[Apiaceae]
Antennaria
howellii Greene
[Asteraceae]
Antennaria
howellii subsp. howellii
[Asteraceae]
Synonymies:
Antennaria neglecta var. howellii (Greene) Cronquist
Antennaria
howellii subsp.
neodioica (Greene) R. J.
Bayer [Asteraceae]
Synonymies:
Antennaria neglecta var. neodioica (Greene) Cronquist
Antennaria neodioica Greene
Antennaria
monocephala DC.
[Asteraceae]
Synonymies:
Antennaria shumaginensis Porsild
Antennaria
parlinii Fernald
[Asteraceae]
Antennaria
parlinii subsp. fallax
(Greene) R. J. Bayer & Stebbins [Asteraceae]
Synonymies:
Antennaria arnoglossa var. ambigens Greene
Antennaria calophylla Greene
Antennaria fallax Greene
Antennaria plantaginifolia var. ambigens (Greene) Cronquist
Antennaria umbellata Greene
Antennaria
parlinii subsp. parlinii
[Asteraceae]
Synonymies:
Antennaria arnoglossa Greene
Antennaria plantaginifolia var. arnoglossa (Greene) Cronquist
Antennaria
parvifolia Nutt.
[Asteraceae]
Antennaria
plantaginifolia (L.) Richardson
[Asteraceae]
Synonymies:
Gnaphalium plantaginifolium L.
Antennaria
rosea Greene
[Asteraceae]
Antennaria
rosea subsp. confinis
(Greene) R. J. Bayer [Asteraceae]
Synonymies:
Antennaria angustifolia Rydb.
Antennaria confinis Greene
Antennaria
rosea subsp. rosea
[Asteraceae]
Antennaria
umbrinella Rydb.
[Asteraceae]
Synonymies:
Antennaria acuta Rydb.
Apios
americana Medik.
[Fabaceae]
Apocynum
androsaemifolium L.
[Apocynaceae]
Apocynum
cannabinum L.
[Apocynaceae]
Synonymies:
Apocynum suksdorfii Greene
Aquilegia
canadensis L.
[Ranunculaceae]
Synonymies:
Aquilegia latiuscula Greene
Aquilegia
formosa Fisch.
[Ranunculaceae]
Arabis
alpina L.
[Brassicaceae]
Arabis
alpina subsp. alpina
[Brassicaceae]
Arabis
x divaricarpa A. Nelson
[Brassicaceae]
Arabis
drummondii A. Gray
[Brassicaceae]
Synonymies:
Arabis drummondii var. oxyphylla (Greene) M. Hopkins
Arabis oxyphylla Greene
Arabis
hirsuta (L.) Scop.
[Brassicaceae]
Synonymies:
Turritis hirsuta L.
Arabis
holboellii Hornem.
[Brassicaceae]
Arabis
holboellii var.
collinsii (Fernald) Rollins
[Brassicaceae]
Synonymies:
Arabis collinsii Fernald
Arabis dacotica Greene
Arabis x divaricarpa var. dacotica (Greene) Boivin
Arabis
holboellii var.
holboellii
[Brassicaceae]
Arabis
sparsiflora Nutt. ex Torr.
& A. Gray [Brassicaceae]
Aralia
hispida Vent.
[Araliaceae]
Aralia
nudicaulis L.
[Araliaceae]
Aralia
racemosa L.
[Araliaceae]
Arbutus
menziesii Pursh
[Ericaceae]
Arctagrostis
latifolia (R. Br.) Griseb.
[Poaceae]
Synonymies:
Colpodium latifolium R. Br.
Arctophila
fulva (Trin.) Andersson
[Poaceae]
Synonymies:
Poa fulva Trin.
Arctostaphylos
alpina (L.) Spreng.
[Ericaceae]
Arctostaphylos
uva-ursi (L.) Spreng.
[Ericaceae]
Synonymies:
Arbutus uva-ursi L.
Arisaema
dracontium (L.) Schott
[Araceae]
Arisaema
triphyllum (L.) Schott
[Araceae]
Synonymies:
Arisaema atrorubens (Aiton) Blume
Arisaema stewardsonii Britton
Arum atrorubens Aiton
Aristida
dichotoma Michx.
[Poaceae]
Aristida
purpurascens Poir.
[Poaceae]
Aristida
purpurea var. longiseta
(Steud.) Vasey [Poaceae]
Synonymies:
Aristida longiseta Steud.
Armeria
maritima Willd.
[Plumbaginaceae]
Synonymies:
Statice maritima Mill.
Armeria
maritima subsp. sibirica
(Turcz. ex Boiss.) Nyman [Plumbaginaceae]
Synonymies:
Armeria sibirica Turcz. ex Boiss.
Statice sibirica (Turcz. ex Boiss.) Ledeb.
Arnica
chamissonis subsp.
foliosa (Nutt.) Maguire
[Asteraceae]
Synonymies:
Arnica foliosa Nutt.
Arnica
cordifolia Hook.
[Asteraceae]
Arnica
fulgens Pursh
[Asteraceae]
Arnica
latifolia Bong.
[Asteraceae]
Arnica
lessingii Greene
[Asteraceae]
Arnica
sororia Greene
[Asteraceae]
Aronia
arbutifolia (L.) Pers.
[Rosaceae]
Synonymies:
Aronia arbutifolia var. brilliantissima hort.
Crataegus pyrifolia Lam.
Photinia pyrifolia (Lam.) K. R. Robertson & J. B. Phipps
Pyrus arbutifolia (L.) L. f.
Sorbus arbutifolia (L.) Heynh.
Aronia
melanocarpa (Michx.) Elliott
[Rosaceae]
Synonymies:
Aronia melanocarpa Spach, nom. illeg.
Aronia nigra (Medik.) Dippel, nom. illeg.
Aronia nigra (Willd.) Koehne, nom. illeg.
Hahnia arbutifolia var. nigra Medik.
Mespilus arbutifolia var. melanocarpa Michx.
Photinia melanocarpa (Michx.) K. R. Robertson & J. B. Phipps
Pyrus arbutifolia var. nigra Willd.
Pyrus melanocarpa (Michx.) Willd.
Pyrus nigra (Willd.) Sarg.
Aronia
x prunifolia (Marshall) Rehder
[Rosaceae]
Synonymies:
Crataegus prunifolia (Marshall) Baumg.
Mespilus prunifolia Marshall
Photinia floribunda (Lindl.) K. R. Robertson & J. B. Phipps
Pyrus floribunda Lindl.
Artemisia
campestris L.
[Asteraceae]
Artemisia
cana Pursh
[Asteraceae]
Synonymies:
Seriphidium canum (Pursh) W. A. Weber
Artemisia
dracunculus L.
[Asteraceae]
Synonymies:
Artemisia glauca Pall. ex Willd.
Artemisia
frigida Willd.
[Asteraceae]
Artemisia
ludoviciana Nutt.
[Asteraceae]
Artemisia
tilesii Ledeb.
[Asteraceae]
Artemisia
tridentata Nutt.
[Asteraceae]
Synonymies:
Seriphidium tridentatum (Nutt.) W. A. Weber
Artemisia
tridentata subsp.
tridentata
[Asteraceae]
Artemisia
tridentata subsp.
vaseyana (Rydb.) Beetle
[Asteraceae]
Aruncus
dioicus (Walter) Fernald
[Rosaceae]
Synonymies:
Actaea dioica Walter
Asarum
canadense L.
[Aristolochiaceae]
Asclepias
incarnata L.
[Asclepiadaceae]
Asclepias
speciosa Torr.
[Asclepiadaceae]
Asclepias
syriaca L.
[Asclepiadaceae]
Asimina
triloba (L.) Dunal
[Annonaceae]
Synonymies:
Annona triloba L.
Asplenium
platyneuron (L.) Britton et al.
[Aspleniaceae]
Asplenium
rhizophyllum L.
[Aspleniaceae]
Synonymies:
Camptosorus rhizophyllus (L.) Link
Asplenium
ruta-muraria L.
[Aspleniaceae]
Asplenium
scolopendrium L.
[Aspleniaceae]
Asplenium
scolopendrium var.
americanum (Fernald) Kartesz
& Gandhi [Aspleniaceae]
Synonymies:
Phyllitis japonica subsp. americana (Fernald) Á. Löve & D. Löve
Asplenium
trichomanes L.
[Aspleniaceae]
Aster
ascendens Lindl.
[Asteraceae]
Synonymies:
Symphyotrichum ascendens (Lindl.) G. L. Nesom
Aster
cordifolius L.
[Asteraceae]
Aster
divaricatus L.
[Asteraceae]
Synonymies:
Aster claytonii E. S. Burgess
Aster flexilis E. S. Burgess
Aster
dumosus L.
[Asteraceae]
Synonymies:
Symphyotrichum dumosum (L.) G. L. Nesom
Aster
ericoides L.
[Asteraceae]
Synonymies:
Aster multiflorus Aiton
Symphyotrichum ericoides (L.) G. L. Nesom
Aster
falcatus var. commutatus
(Torr. & A. Gray) A. G. Jones [Asteraceae]
Synonymies:
Aster commutatus (Torr. & A. Gray) A. Gray
Aster ericoides var. commutatus (Torr. & A. Gray) B. Boivin
Aster multiflorus var. commutatus Torr. & A. Gray
Symphyotrichum falcatum var. commutatum (Torr. & A. Gray) G. L. Nesom
Aster
foliaceus Lindl.
[Asteraceae]
Aster
fragilis Willd.
[Asteraceae]
Aster
laevis L.
[Asteraceae]
Aster
laevis var. geyeri A.
Gray [Asteraceae]
Synonymies:
Symphyotrichum laeve var. geyeri (A. Gray) G. L. Nesom
Aster
laevis var. laevis
[Asteraceae]
Synonymies:
Symphyotrichum laeve (L.) Á. Löve & D. Löve
Aster
lanceolatus Willd.
[Asteraceae]
Synonymies:
Aster paniculatus Lam.
Aster simplex var. ramosissimus (Torr. & A. Gray) Cronquist
Aster
lateriflorus (L.) Britton
[Asteraceae]
Synonymies:
Aster vimineus Lam.
Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve
Aster
lateriflorus var.
hirsuticaulis (Lindl.)
Porter [Asteraceae]
Synonymies:
Aster acadiensis Shinners
Aster hirsuticaulis Lindl.
Aster lateriflorus var. tenuipes Wiegand
Aster
novae-angliae L.
[Asteraceae]
Synonymies:
Symphyotrichum novae-angliae (L.) G. L. Nesom
Aster
novi-belgi L.
[Asteraceae]
Synonymies:
Symphyotrichum novi-belgi (L.) G. L. Nesom
Aster
pilosus Willd.
[Asteraceae]
Aster
pilosus var. pilosus
[Asteraceae]
Aster
pilosus var. pringlei
(A. Gray) S. F. Blake [Asteraceae]
Synonymies:
Aster ericoides var. pringlei A. Gray
Aster faxonii Porter
Aster
sericeus Vent.
[Asteraceae]
Aster
sericeus var. sericeus
[Asteraceae]
Aster
spathulatus Lindl.
[Asteraceae]
Synonymies:
Aster occidentalis (Nutt.) Torr. & A. Gray
Symphyotrichum spathulatum (Lindl.) G. L. Nesom
Tripolium occidentale Nutt.
Aster
undulatus L.
[Asteraceae]
Synonymies:
Aster baldwinii Torr. & A. Gray
Aster mohrii E. S. Burgess
Astragalus
aboriginum Richardson
[Fabaceae]
Synonymies:
Astragalus forwoodii S. Watson
Astragalus
adsurgens Pall.
[Fabaceae]
Synonymies:
Astragalus austrosibiricus Schischk.
Astragalus
adsurgens var. robustior
Hook. [Fabaceae]
Synonymies:
Astragalus striatus Nutt.
Astragalus
adsurgens var.
tananaicus (Hultén)
Barneby [Fabaceae]
Synonymies:
Astragalus adsurgens subsp. viciifolius S. L. Welsh
Astragalus tananaicus Hultén
Astragalus
agrestis Douglas ex G. Don
[Fabaceae]
Synonymies:
Astragalus dasyglottis Fisch. ex DC., nom. illeg.
Astragalus
alpinus L.
[Fabaceae]
Astragalus
americanus (Hook.) M. E. Jones
[Fabaceae]
Synonymies:
Astragalus frigidus var. americanus (Hook.) S. Watson
Astragalus
bisulcatus (Hook.) A. Gray
[Fabaceae]
Synonymies:
Phaca bisulcata Hook.
Astragalus
canadensis L.
[Fabaceae]
Astragalus
canadensis var.
brevidens (Gand.) Barneby
[Fabaceae]
Synonymies:
Astragalus mortonii f. brevidens Gand.
Astragalus
canadensis var.
canadensis
[Fabaceae]
Astragalus
canadensis var. mortonii
(Nutt.) S. Watson [Fabaceae]
Synonymies:
Astragalus mortonii Nutt.
Astragalus
collinus (Hook.) Douglas ex G.
Don [Fabaceae]
Synonymies:
Phaca collina Hook.
Astragalus
crassicarpus Nutt.
[Fabaceae]
Astragalus
crassicarpus var.
crassicarpus
[Fabaceae]
Synonymies:
Astragalus caryocarpus Ker Gawl.
Astragalus
crassicarpus var.
paysonii (Kelso) Barneby
[Fabaceae]
Synonymies:
Astragalus succulentus var. paysonii Kelso
Astragalus
drummondii Douglas ex Hook.
[Fabaceae]
Astragalus
eucosmus B. L. Rob.
[Fabaceae]
Astragalus
filipes Torr. ex A. Gray
[Fabaceae]
Synonymies:
Astragalus stenophyllus Torr. & A. Gray, nom. dubium
Astragalus
flexuosus (Hook.) Douglas ex G.
Don [Fabaceae]
Synonymies:
Astragalus flexuosus var. sierrae-blancae (Rydb.) Barneby
Phaca flexuosa Hook.
Astragalus
lentiginosus Douglas ex Hook.
[Fabaceae]
Astragalus
lentiginosus var.
lentiginosus
[Fabaceae]
Astragalus
lotiflorus Hook.
[Fabaceae]
Synonymies:
Astragalus lotiflorus var. nebraskensis Bates
Astragalus
miser Douglas ex Hook.
[Fabaceae]
Astragalus
miser var. miser
[Fabaceae]
Astragalus
miser var. serotinus (A.
Gray ex J. G. Cooper) Barneby [Fabaceae]
Synonymies:
Astragalus palliseri A. Gray
Astragalus serotinus A. Gray ex J. G. Cooper
Astragalus
missouriensis Nutt.
[Fabaceae]
Astragalus
neglectus (Torr. & A. Gray)
J. Sheld. [Fabaceae]
Synonymies:
Astragalus cooperi A. Gray, nom. illeg.
Phaca neglecta Torr. & A. Gray
Astragalus
pectinatus (Douglas ex Hook.)
Douglas ex G. Don [Fabaceae]
Synonymies:
Phaca pectinata Douglas ex Hook.
Astragalus
purshii Douglas ex Hook.
[Fabaceae]
Astragalus
purshii var. glareosus
(Douglas) Barneby [Fabaceae]
Synonymies:
Astragalus ventosus Suksd. ex Rydb.
Astragalus
purshii var. purshii
[Fabaceae]
Astragalus
racemosus Pursh
[Fabaceae]
Astragalus
robbinsii (Oakes) A. Gray
[Fabaceae]
Astragalus
robbinsii var. minor
(Hook.) Barneby [Fabaceae]
Synonymies:
Phaca elegans var. minor Hook.
Astragalus
tenellus Pursh
[Fabaceae]
Astragalus
vexilliflexus J. Sheld.
[Fabaceae]
Athyrium
distentifolium Tausch ex Opiz
[Dryopteridaceae]
Synonymies:
Athyrium alpestre Milde, nom. illeg.
Athyrium
filix-femina (L.) Roth ex Mert.
[Dryopteridaceae]
Synonymies:
Polypodium filix-femina L.
Athyrium
filix-femina var.
angustum (Willd.) G. Lawson
[Dryopteridaceae]
Synonymies:
Aspidium angustum Willd.
Athyrium angustum (Willd.) C. Presl
Atriplex
canescens (Pursh) Nutt.
[Chenopodiaceae]
Synonymies:
Calligonum canescens Pursh
Atriplex
gardneri (Moq.) D. Dietr.
[Chenopodiaceae]
Atriplex
gardneri var. aptera (A.
Nelson) S. L. Welsh & Crompton [Chenopodiaceae]
Synonymies:
Atriplex aptera A. Nelson
Atriplex nuttallii S. Watson
Atriplex
gmelini C. A. Mey.
[Chenopodiaceae]
Synonymies:
Atriplex gmelini var. zosterifolia (Hook.) Moq.
Atriplex patula var. zosterifolia (Hook.) C. L. Hitchc.
Atriplex
truncata (Torr. ex S. Watson)
A. Gray [Chenopodiaceae]
Synonymies:
Obione truncata Torr. ex S. Watson
Avena
x glabrata Hausskn.
[Poaceae]
Azolla
caroliniana Willd.
[Azollaceae]
Azolla
filiculoides Lam.
[Azollaceae]
Balsamorhiza
sagittata (Pursh) Nutt.
[Asteraceae]
Synonymies:
Buphthalmum sagittatum Pursh
Baptisia
tinctoria (L.) R. Br.
[Fabaceae]
Synonymies:
Sophora tinctoria L.
Beckmannia
syzigachne (Steud.) Fernald
[Poaceae]
Synonymies:
Panicum syzigachne Steud.
Berula
erecta (Huds.) Coville
[Apiaceae]
Synonymies:
Berula angustifolia (L.) Mert. & W. D. J. Koch
Berula pusilla Fernald
Berula thunbergii (DC.) H. Wolff
Sium erecta Huds.
Sium thunbergii DC.
Betula
alleghaniensis Britton
[Betulaceae]
Synonymies:
Betula lutea auct.
Betula
glandulosa Michx.
[Betulaceae]
Betula
kenaica W. H. Evans
[Betulaceae]
Synonymies:
Betula papyrifera var. kenaica (W. H. Evans) A. Henry
Betula
lenta L.
[Betulaceae]
Betula
michauxii Spach
[Betulaceae]
Betula
nana L.
[Betulaceae]
Betula
nana subsp. exilis
(Sukaczev) Hultén [Betulaceae]
Synonymies:
Betula exilis Sukaczev
Betula
nana subsp. nana
[Betulaceae]
Betula
neoalaskana Sarg.
[Betulaceae]
Synonymies:
Betula papyrifera var. neoalaskana (Sarg.) Raup
Betula resinifera Britton, nom. illeg.
Betula
occidentalis Hook.
[Betulaceae]
Synonymies:
Betula fontinalis Sarg.
Betula papyrifera var. occidentalis (Hook.) Sarg.
Betula
papyrifera Marshall
[Betulaceae]
Synonymies:
Betula excelsa Aiton
Betula lyalliana Koehne, nom. invalidum
Betula papyrifera var. commutata (Regel) Fernald
Betula
platyphylla Sukaczev
[Betulaceae]
Betula
populifolia Marshall
[Betulaceae]
Synonymies:
Betula populifolia f. purpurea (Ellw. & P. Barry) C. K. Schneid.
Betula
pumila L.
[Betulaceae]
Synonymies:
Betula hallii Howell
Betula
pumila var. glandulifera
Regel [Betulaceae]
Betula
x purpusii C. K. Schneid.
[Betulaceae]
Betula
x raymundii Lepage
[Betulaceae]
Betula
x sandbergii Britton
[Betulaceae]
Bidens
frondosa L.
[Asteraceae]
Bidens
vulgata Greene
[Asteraceae]
Blechnum
spicant (L.) Sm.
[Blechnaceae]
Boisduvalia
densiflora (Lindl.) S. Watson
[Onagraceae]
Synonymies:
Oenothera densiflora Lindl.
Botrychium
matricariifolium (Döll) A.
Braun ex W. D. J. Koch [Ophioglossaceae]
Synonymies:
Botrychium lunaria var. matricariifolium Döll
Bouteloua
curtipendula (Michx.) Torr.
[Poaceae]
Synonymies:
Chloris curtipendula Michx.
Bouteloua
curtipendula var.
curtipendula
[Poaceae]
Bouteloua
gracilis (Kunth) Lag. ex
Griffiths, nom. illeg. [Poaceae]
Synonymies:
Atheropogon oligostachyus Nutt.
Bouteloua oligostachya (Nutt.) Torr. ex A. Gray
Chondrosum gracile Kunth
Bouteloua
hirsuta Lag.
[Poaceae]
Synonymies:
Chondrosum hirsutum (Lag.) Sweet
Brasenia
schreberi J. F. Gmel.
[Cabombaceae]
Braya
humilis (C. A. Mey.) B. L. Rob.
[Brassicaceae]
Synonymies:
Sisymbrium humile C. A. Mey.
Torularia humilis (C. A. Mey.) O. E. Schulz
Brodiaea
coronaria (Salisb.) Engl.
[Liliaceae]
Bromus
carinatus Hook. & Arn.
[Poaceae]
Synonymies:
Bromus carinatus var. hookerianus (Thurb.) Shear
Bromus hookerianus Thurb.
Bromus virens Buckley
Bromus
ciliatus L.
[Poaceae]
Synonymies:
Bromus richardsonii Link
Bromus
inermis Leyss.
[Poaceae]
Bromus
inermis subsp.
pumpellianus (Scribn.)
Wagnon [Poaceae]
Synonymies:
Bromopsis inermis subsp. pumpelliana (Scribn.) W. A. Weber
Bromus pumpellianus Scribn.
Bromus sibiricus Drobow
Bromus
latiglumis (Shear) Hitchc.
[Poaceae]
Synonymies:
Bromus altissimus Pursh, nom. illeg.
Bromus
marginatus Nees ex Steud.
[Poaceae]
Synonymies:
Bromus breviaristatus Buckley
Bromus marginatus var. latior Shear
Bromus parviflorus Nutt. ex A. Gray, nom. invalidum
Bromus
sitchensis Trin.
[Poaceae]
Cabomba
caroliniana A. Gray
[Cabombaceae]
Cakile
edentula (Bigelow) Hook.
[Brassicaceae]
Calamagrostis
canadensis (Michx.) P. Beauv.
[Poaceae]
Synonymies:
Arundo canadensis Michx.
Calamagrostis
coarctata (Torr.) Eaton
[Poaceae]
Synonymies:
Arundo coarctata Torr.
Calamagrostis cinnoides auct.
Calamagrostis
rubescens Buckley
[Poaceae]
Calamagrostis
stricta (Timm) Koeler
[Poaceae]
Calamagrostis
stricta subsp. inexpansa
(A. Gray) C. W. Greene [Poaceae]
Synonymies:
Calamagrostis inexpansa A. Gray
Calamagrostis
stricta subsp. stricta
[Poaceae]
Synonymies:
Calamagrostis neglecta (Ehrh.) C. F. Gaertn., B. Mey. & Scherb.
Calamovilfa
longifolia (Hook.) Scribn.
[Poaceae]
Synonymies:
Calamagrostis longifolia Hook.
Calla
palustris L.
[Araceae]
Calla
palustris f. polyspathacea
Vict. & J. Rousseau [Araceae]
Calopogon
tuberosus (L.) Britton et al.
[Orchidaceae]
Caltha
leptosepala DC.
[Ranunculaceae]
Caltha
palustris L.
[Ranunculaceae]
Synonymies:
Caltha polypetala Hochst. ex Lorent
Calystegia
macounii (Greene) Brummitt
[Convolvulaceae]
Synonymies:
Convolvulus macounii Greene
Calystegia
sepium (L.) R. Br.
[Convolvulaceae]
Synonymies:
Convolvulus sepium L.
Camassia
leichtlinii (Baker) S. Watson
[Liliaceae]
Synonymies:
Chlorogalum leichtlinii Baker
Quamasia leichtlinii (Baker) Coville
Camassia
quamash (Pursh) Greene
[Liliaceae]
Camissonia
contorta (Douglas ex Lehm.)
Kearney [Onagraceae]
Synonymies:
Oenothera contorta Douglas ex Lehm.
Campanula
americana L.
[Campanulaceae]
Synonymies:
Campanulastrum americana (L.) Small
Campanula
rotundifolia L.
[Campanulaceae]
Synonymies:
Campanula polymorpha Witasek
Capnoides
sempervirens (L.) Borkh.
[Papaveraceae]
Synonymies:
Corydalis glauca Pursh
Corydalis sempervirens (L.) Pers.
Cardamine
nuttallii Greene
[Brassicaceae]
Cardamine
nuttallii var. nuttallii
[Brassicaceae]
Synonymies:
Cardamine nuttallii var. pulcherrima (Greene) Roy L. Taylor & MacBryde
Cardamine pulcherrima Greene
Cardamine pulcherrima var. tenella (Pursh) Cronquist
Dentaria tenella Pursh
Carex
athrostachya Olney
[Cyperaceae]
Carex
atlantica L. H. Bailey
[Cyperaceae]
Carex
bicknellii Britton
[Cyperaceae]
Carex
capillaris L.
[Cyperaceae]
Carex
filifolia Nutt.
[Cyperaceae]
Carex
haydenii Dewey
[Cyperaceae]
Carex
limnophila F. J. Herm.
[Cyperaceae]
Carex
longii Mack.
[Cyperaceae]
Carex
microptera Mack.
[Cyperaceae]
Carex
nebrascensis Dewey
[Cyperaceae]
Carex
phaeocephala f. eastwoodiana
(Stacey) F. J. Herm. [Cyperaceae]
Synonymies:
Carex eastwoodiana Stacey
Carpinus
caroliniana Walter
[Betulaceae]
Carya
cordiformis (Wangenh.) K. Koch
[Juglandaceae]
Synonymies:
Juglans cordiformis Wangenh.
Carya
glabra (Mill.) Sweet
[Juglandaceae]
Synonymies:
Juglans glabra Mill.
Juglans pyriformis Muhl.
Carya
laciniosa (F. Michx.) Loudon
[Juglandaceae]
Synonymies:
Hicorius laciniosa (F. Michx.) Sarg.
Juglans laciniosa F. Michx.
Carya
ovalis (Wangenh.) Sarg.
[Juglandaceae]
Synonymies:
Carya glabra var. odorata (Marshall) Little
Juglans alba var. odorata Marshall
Juglans ovalis Wangenh.
Carya
ovata (Mill.) K. Koch
[Juglandaceae]
Synonymies:
Carya alba auct.
Juglans ovata Mill.
Cassiope
lycopodioides (Pall.) D. Don
[Ericaceae]
Synonymies:
Andromeda lycopodioides Pall.
Cassiope
mertensiana (Bong.) G. Don
[Ericaceae]
Synonymies:
Andromeda mertensiana Bong.
Cassiope
tetragona (L.) D. Don
[Ericaceae]
Synonymies:
Andromeda tetragona L.
Castanea
dentata (Marshall) Borkh.
[Fagaceae]
Synonymies:
Castanea americana (Michx.) Raf.
Fagus-Castanea dentata Marshall
Castilleja
levisecta Greenm.
[Scrophulariaceae]
Caulophyllum
thalictroides (L.) Michx.
[Berberidaceae]
Ceanothus
americanus L.
[Rhamnaceae]
Synonymies:
Ceanothus americanus var. intermedius (Pursh) Torr. & A. Gray
Ceanothus
herbaceus Raf.
[Rhamnaceae]
Synonymies:
Ceanothus herbaceus var. pubescens (Torr. & A. Gray ex S. Watson) Shinners
Ceanothus
velutinus Douglas ex Hook.
[Rhamnaceae]
Ceanothus
velutinus var.
laevigatus (Hook.) Torr.
& A. Gray [Rhamnaceae]
Synonymies:
Ceanothus laevigatus Hook.
Celastrus
scandens L.
[Celastraceae]
Celtis
occidentalis L.
[Celtidaceae]
Synonymies:
Celtis audibertiana Spach
Celtis crassifolia Lam.
Celtis occidentalis var. crassifolia (Lam.) A. Gray
Cenchrus
longispinus (Hack.) Fernald
[Poaceae]
Cephalanthus
occidentalis L.
[Rubiaceae]
Cerastium
arvense L.
[Caryophyllaceae]
Cerastium
beeringianum var.
grandiflorum (Fenzl)
Hultén [Caryophyllaceae]
Synonymies:
Cerastium vulgatum var. grandiflorum Fenzl
Chamaecyparis
nootkatensis (D. Don) Spach
[Cupressaceae]
Synonymies:
Chamaecyparis nootkatensis f. lutea (G. L. Webster) Rehder
Chamaecyparis nootkatensis f. pendula (Beissner) Rehder
Cupressus nootkatensis Lamb.
Chamaedaphne
calyculata (L.) Moench
[Ericaceae]
Synonymies:
Andromeda calyculata L.
Cassandra calyculata D. Don
Chamaelirium
luteum (L.) A. Gray
[Liliaceae]
Chamaesyce
glyptosperma (Engelm.) Small
[Euphorbiaceae]
Synonymies:
Euphorbia glyptosperma Engelm.
Chamaesyce
nutans (Lag.) Small
[Euphorbiaceae]
Synonymies:
Euphorbia nutans Lag.
Chelone
glabra L.
[Scrophulariaceae]
Chenopodium
berlandieri subsp.
zschackei (J. Murr) A. Zobel
[Chenopodiaceae]
Chenopodium
bushianum Aellen
[Chenopodiaceae]
Chenopodium
rubrum L.
[Chenopodiaceae]
Chenopodium
simplex Raf.
[Chenopodiaceae]
Synonymies:
Chenopodium gigantospermum Aellen
Chenopodium
strictum Roth
[Chenopodiaceae]
Chimaphila
umbellata subsp.
cisatlantica (S. F. Blake)
Hultén [Ericaceae]
Synonymies:
Chimaphila corymbosa Pursh
Chimaphila umbellata var. cisatlantica S. F. Blake
Chrysopsis
villosa var. hispida (Hook.) A.
Gray
Synonym of Heterotheca
villosa var. minor
(Hook.) Semple
Synonymies:
Chrysopsis hispida (Hook.) Nutt.
Diplopappus hispidus Hook.
Chrysopsis
villosa var. villosa
Synonym of Heterotheca
villosa var. villosa
Chrysothamnus
nauseosus (Pall. ex Pursh)
Britton [Asteraceae]
Synonymies:
Chrysocoma nauseosa Pall. ex Pursh
Ericameria nauseosa (Pall. ex Pursh) G. L. Nesom & G. I. Baird
Chrysothamnus
viscidiflorus (Hook.) Nutt.
[Asteraceae]
Synonymies:
Ericameria viscidiflora (Hook.) L. C. Anderson
Cicuta
bulbifera L.
[Apiaceae]
Cicuta
douglasii (DC.) J. M. Coult.
& Rose [Apiaceae]
Synonymies:
Cicuta californica A. Gray
Cicuta vagans Greene
Sium douglasii DC.
Cicuta
maculata L.
[Apiaceae]
Cicuta
maculata var.
angustifolia Hook.
[Apiaceae]
Synonymies:
Cicuta occidentalis Greene
Cicuta
maculata var. maculata
[Apiaceae]
Synonymies:
Cicuta curtissii J. M. Coult. & Rose
Cicuta mexicana Coult. & Rose
Cicuta
virosa L.
[Apiaceae]
Synonymies:
Cicuta mackenzieana Raup
Cinna
arundinacea L.
[Poaceae]
Cirsium
hillii (Canby) Fernald
[Asteraceae]
Synonymies:
Cnicus hillii Canby
Cirsium
pitcheri (Torr. ex Eaton) Torr.
& A. Gray [Asteraceae]
Synonymies:
Cnicus pitcheri Torr. ex Eaton
Cirsium
undulatum (Nutt.) Spreng.
[Asteraceae]
Clarkia
amoena (Lehm.) A. Nelson &
J. F. Macbr. [Onagraceae]
Synonymies:
Godetia amoena (Lehm.) G. Don
Clarkia
pulchella Pursh
[Onagraceae]
Claytonia
lanceolata Pursh
[Portulacaceae]
Synonymies:
Claytonia lanceolata var. peirsonii Munz & I. M. Johnst.
Claytonia
perfoliata Donn ex Willd.
[Portulacaceae]
Synonymies:
Montia perfoliata (Donn ex Willd.) Howell
Claytonia
virginica L.
[Portulacaceae]
Clematis
ligusticifolia Nutt.
[Ranunculaceae]
Synonymies:
Clematis brevifolia Howell
Clematis
virginiana L.
[Ranunculaceae]
Clinopodium
vulgare L.
[Lamiaceae]
Synonymies:
Calamintha clinopodium Spenn.
Satureja vulgaris (L.) Fritsch
Cochlearia
officinalis L.
[Brassicaceae]
Collomia
grandiflora Douglas ex Lindl.
[Polemoniaceae]
Comandra
umbellata (L.) Nutt.
[Santalaceae]
Comandra
umbellata subsp. pallida
(A. DC.) Piehl [Santalaceae]
Synonymies:
Comandra pallida A. DC.
Comptonia
peregrina (L.) J. M. Coult.
[Myricaceae]
Synonymies:
Comptonia asplenifolia (L.) L'Hér. ex Aiton
Conyza
canadensis (L.) Cronquist
[Asteraceae]
Synonymies:
Erigeron canadensis L.
Coptis
trifolia (L.) Salisb.
[Ranunculaceae]
Synonymies:
Anemone groenlandica Oeder
Coptis groenlandica (Oeder) Fernald
Coptis trifolia subsp. groenlandica (Oeder) Hultén
Coptis trifolia var. groenlandica (Oeder) Fassett
Corema
conradii (Torr.) Torr. ex
Loudon [Empetraceae]
Synonymies:
Empetrum conradii Torr.
Coreopsis
lanceolata L.
[Asteraceae]
Coreopsis
tinctoria Nutt.
[Asteraceae]
Synonymies:
Calliopsis cardaminifolia DC.
Coreopsis cardaminifolia (DC.) Nutt.
Cornus
alternifolia L. f.
[Cornaceae]
Cornus
amomum Mill.
[Cornaceae]
Cornus
canadensis L.
[Cornaceae]
Synonymies:
Chamaepericlymenum canadense (L.) Asch. & Graebn.
Cornus
drummondii C. A. Mey.
[Cornaceae]
Cornus
florida L.
[Cornaceae]
Cornus
florida subsp. florida
[Cornaceae]
Synonymies:
Cornus florida f. rubra (Weston) Schelle
Cornus florida f. xanthocarpa Rehder
Cornus florida var. rubra Weston
Cornus
nuttallii Audubon
[Cornaceae]
Cornus
racemosa Lam.
[Cornaceae]
Synonymies:
Cornus foemina subsp. racemosa (Lam.) J. S. Wilson
Cornus
rugosa Lam.
[Cornaceae]
Cornus
sericea subsp.
occidentalis (Torr. & A.
Gray) Fosberg [Cornaceae]
Synonymies:
Cornus occidentalis (Torr. & A. Gray) Coville
Cornus sericea var. occidentalis Torr. & A. Gray
Cornus stolonifera var. occidentalis (Torr. & A. Gray) C. L. Hitchc.
Cornus
sericea subsp. sericea
[Cornaceae]
Synonymies:
Cornus alba var. coloradensis Koehne
Cornus stolonifera Michx.
Cornus stolonifera var. coloradensis (Koehne) C. K. Schneid.
Cornus
unalaschkensis Ledeb.
[Cornaceae]
Corydalis
aurea Willd.
[Papaveraceae]
Corydalis
flavula (Raf.) DC.
[Papaveraceae]
Synonymies:
Fumaria flavula Raf.
Corylus
americana Marshall
[Betulaceae]
Corylus
cornuta Marshall
[Betulaceae]
Corylus
cornuta subsp.
californica (A. DC.) E.
Murray [Betulaceae]
Synonymies:
Corylus cornuta var. californica (A. DC.) W. M. Sharp
Corylus
cornuta subsp. cornuta
[Betulaceae]
Synonymies:
Corylus rostrata Aiton
Crataegus
beata Sarg.
[Rosaceae]
Synonymies:
Crataegus strigosa Sarg.
Crataegus
calpodendron (Ehrh.) Medik.
[Rosaceae]
Synonymies:
Crataegus calpodendron var. hispidula (Sarg.) E. J. Palmer
Crataegus downingii hort.
Crataegus hispidula Sarg.
Mespilus calpodendron Ehrh.
Crataegus
canadensis Sarg.
[Rosaceae]
Crataegus
chrysocarpa Ashe
[Rosaceae]
Synonymies:
Crataegus praecoqua Sarg.
Crataegus praecox Sarg., nom. illeg.
Crataegus
chrysocarpa var.
chrysocarpa
[Rosaceae]
Synonymies:
Crataegus doddsi Ramaley
Crataegus faxonii Sarg.
Crataegus rotundifolia Moench, nom. illeg.
Crataegus
chrysocarpa var.
phoenicea E. J. Palmer
[Rosaceae]
Crataegus
chrysocarpa var. piperi
(Britton) Kruschke [Rosaceae]
Synonymies:
Crataegus columbiana auct.
Crataegus piperi Britton
Crataegus
coccinea L.
[Rosaceae]
Crataegus
crus-galli L.
[Rosaceae]
Synonymies:
Crataegus regalis Beadle
Crataegus salicifolia Medik.
Crataegus
disperma Ashe
[Rosaceae]
Crataegus
douglasii Lindl.
[Rosaceae]
Synonymies:
Crataegus punctata var. brevispina Douglas ex Hook.
Crataegus
flabellata (Bosc ex Spach) K.
Koch [Rosaceae]
Synonymies:
Mespilus flabellata Bosc ex Spach
Crataegus
flabellata var. grayana
(Eggl.) E. J. Palmer [Rosaceae]
Synonymies:
Crataegus grayana Eggl.
Crataegus
holmesiana Ashe
[Rosaceae]
Crataegus
intricata Lange
[Rosaceae]
Synonymies:
Crataegus foetida Ashe
Crataegus
iracunda Beadle
[Rosaceae]
Synonymies:
Crataegus brumalis Ashe
Crataegus iracunda var. brumalis (Ashe) Kruschke, nom. illeg.
Crataegus
irrasa Sarg.
[Rosaceae]
Crataegus
irrasa var. blanchardii
(Sarg.) Eggl. [Rosaceae]
Synonymies:
Crataegus blanchardii Sarg.
Crataegus
jonesae Sarg.
[Rosaceae]
Crataegus
macracantha Lodd. ex Loudon
[Rosaceae]
Crataegus
macracantha var.
macracantha
[Rosaceae]
Crataegus
macracantha var.
occidentalis (Britton) Eggl.
[Rosaceae]
Synonymies:
Crataegus occidentalis Britton
Crataegus
macrosperma Ashe
[Rosaceae]
Synonymies:
Crataegus prona Ashe
Crataegus
macrosperma var. matura
(Sarg.) Eggl. [Rosaceae]
Synonymies:
Crataegus fretalis Sarg.
Crataegus matura Sarg.
Crataegus
mollis (Torr. & A. Gray)
Scheele [Rosaceae]
Synonymies:
Crataegus arkansana Sarg.
Crataegus coccinea var. mollis Torr. & A. Gray
Crataegus dumetosa Sarg.
Crataegus mollis f. dumetosa (Sarg.) E. J. Palmer
Crataegus
pedicellata Sarg.
[Rosaceae]
Synonymies:
Crataegus caesa Ashe
Crataegus
persimilis Sarg.
[Rosaceae]
Synonymies:
Crataegus prunifolia Pers., nom. illeg.
Crataegus
pringlei Sarg.
[Rosaceae]
Synonymies:
Crataegus lobulata Sarg.
Crataegus pringlei var. lobulata (Sarg.) Eggl.
Crataegus
pruinosa (H. L. Wendl.) K. Koch
[Rosaceae]
Synonymies:
Mespilus pruinosa H. L. Wendl.
Crataegus
punctata Jacq.
[Rosaceae]
Synonymies:
Crataegus punctata var. aurea Aiton
Crataegus
submollis Sarg.
[Rosaceae]
Crataegus
suborbiculata Sarg.
[Rosaceae]
Crataegus
succulenta Schrad. ex Link
[Rosaceae]
Crepis
acuminata Nutt.
[Asteraceae]
Cryptantha
celosioides (Eastw.) Payson
[Boraginaceae]
Synonymies:
Cryptantha sheldonii (Brand) Payson
Oreocarya celosioides Eastw.
Cryptantha
intermedia (A. Gray) Greene
[Boraginaceae]
Synonymies:
Eritrichium intermedium A. Gray
Cryptogramma
acrostichoides R. Br.
[Pteridaceae]
Cryptogramma
stelleri (S. G. Gmel.) Prantl
[Pteridaceae]
Cryptotaenia
canadensis (L.) DC.
[Apiaceae]
Synonymies:
Deringa canadensis (L.) Kuntze
Cuscuta
campestris Yunck.
[Cuscutaceae]
Cuscuta
coryli Engelm.
[Cuscutaceae]
Cuscuta
gronovii Willd. ex Schult.
[Cuscutaceae]
Cuscuta
pentagona Engelm.
[Cuscutaceae]
Synonymies:
Cuscuta arvensis Beyr. ex Engelm.
Cuscuta arvensis var. pentagona (Engelm.) Engelm.
Cycloloma
atriplicifolium (Spreng.) J. M.
Coult. [Chenopodiaceae]
Synonymies:
Salsola atriplicifolia Spreng.
Cyperus
eragrostis Lam.
[Cyperaceae]
Cyperus
odoratus L.
[Cyperaceae]
Synonymies:
Cyperus engelmannii Steud.
Cyperus ferax Rich.
Torulinium odoratum (L.) Hooper
Cyperus
strigosus L.
[Cyperaceae]
Cystopteris
bulbifera (L.) Bernh.
[Dryopteridaceae]
Dalea
candida Michx. ex Willd.
[Fabaceae]
Dalea
candida var. candida
[Fabaceae]
Synonymies:
Petalostemon candidum Michx.
Dalea
candida var. oligophylla
(Torr.) Shinners [Fabaceae]
Synonymies:
Kuhnistera occidentalis A. Heller ex Britton & Kearney
Petalostemon candidum var. occidentalis A. Gray ex Britton & Kearney
Petalostemon gracile var. oligophyllum Torr.
Petalostemon occidentale (A. Heller) Fernald
Dalea
purpurea Vent.
[Fabaceae]
Synonymies:
Petalostemon molle Rydb.
Petalostemon purpureum (Vent.) Rydb.
Dalea
villosa (Nutt.) Spreng.
[Fabaceae]
Synonymies:
Petalostemon villosum Nutt.
Danthonia
californica Bol.
[Poaceae]
Danthonia
compressa Austin
[Poaceae]
Danthonia
intermedia Vasey
[Poaceae]
Danthonia
parryi Scribn.
[Poaceae]
Danthonia
spicata (L.) P. Beauv. ex Roem.
& Schult. [Poaceae]
Daucus
pusillus Michx.
[Apiaceae]
Synonymies:
Daucus hispidifolius Clos
Daucus montevidensis Link ex Spreng.
Delphinium
bicolor Nutt.
[Ranunculaceae]
Delphinium
glaucum S. Watson
[Ranunculaceae]
Synonymies:
Delphinium brownii Rydb.
Delphinium
nuttallianum Pritz.
[Ranunculaceae]
Synonymies:
Delphinium nelsonii Greene
Delphinium venenosum A. Nelson
Delphinium
virescens Nutt.
[Ranunculaceae]
Dendranthema
arcticum (L.) Tzvelev
[Asteraceae]
Synonymies:
Arctanthemum arcticum (L.) Tzvelev
Dennstaedtia
punctilobula (Michx.) T. Moore
[Dennstaedtiaceae]
Deschampsia
cespitosa (L.) P. Beauv.
[Poaceae]
Deschampsia
cespitosa subsp.
beringensis (Hultén)
W. E. Lawr. [Poaceae]
Synonymies:
Deschampsia beringensis Hultén
Deschampsia
cespitosa subsp.
brevifolia (R. Br.) Tzvelev
[Poaceae]
Synonymies:
Deschampsia brevifolia R. Br.
Deschampsia
cespitosa subsp.
cespitosa
[Poaceae]
Synonymies:
Aira cespitosa L.
Aira cespitosa var. setifolia Bisch. ex W. D. J. Koch
Deschampsia cespitosa var. pallida Gren. & Godr.
Deschampsia cespitosa var. setifolia (Bisch. ex W. D. J. Koch) Griseb.
Deschampsia
cespitosa subsp.
holciformis (J. Presl) W. E.
Lawr. [Poaceae]
Synonymies:
Deschampsia holciformis J. Presl
Deschampsia
cespitosa subsp.
orientalis Hultén
[Poaceae]
Synonymies:
Deschampsia sukatschewii (Popl.) Kom.
Deschampsia
flexuosa (L.) Trin.
[Poaceae]
Synonymies:
Aira flexuosa L.
Avenella flexuosa (L.) Parl.
Descurainia
incana (Bernh. ex Fisch. &
C. A. Mey.) Dorn [Brassicaceae]
Synonymies:
Descurainia richardsonii O. E. Schulz
Sisymbrium incanum Bernh. ex Fisch. & C. A. Mey.
Descurainia
incisa (Engelm. ex A. Gray)
Britton [Brassicaceae]
Synonymies:
Descurainia richardsonii subsp. incisa (Engelm. ex A. Gray) Detling
Descurainia richardsonii var. sonnei (B. L. Rob.) C. L. Hitchc.
Sisymbrium incisum Engelm. ex A. Gray
Descurainia
incisa subsp. incisa
[Brassicaceae]
Descurainia
incisa subsp. viscosa
(Rydb.) Rollins [Brassicaceae]
Synonymies:
Descurainia incana var. viscosa (Rydb.) Dorn
Descurainia richardsonii subsp. viscosa (Rydb.) Detling
Descurainia
pinnata (Walter) Britton
[Brassicaceae]
Desmodium
canadense (L.) DC.
[Fabaceae]
Synonymies:
Hedysarum canadense L.
Desmodium
canescens (L.) DC.
[Fabaceae]
Synonymies:
Hedysarum canescens L.
Desmodium
cuspidatum (Muhl. ex Willd.)
DC. ex Loudon [Fabaceae]
Synonymies:
Hedysarum cuspidatum Muhl. ex Willd.
Desmodium
paniculatum (L.) DC.
[Fabaceae]
Synonymies:
Hedysarum paniculatum L.
Desmodium
rotundifolium DC.
[Fabaceae]
Dicentra
canadensis (Goldie) Walp.
[Papaveraceae]
Synonymies:
Corydalis canadensis Goldie
Dicentra
cucullaria (L.) Bernh.
[Papaveraceae]
Synonymies:
Fumaria cucullaria L.
Dicentra
formosa (Haw.) Walp.
[Papaveraceae]
Synonymies:
Fumaria formosa Haw.
Diervilla
lonicera Mill.
[Diervillaceae]
Dirca
palustris L.
[Thymelaeaceae]
Distichlis
spicata (L.) Greene
[Poaceae]
Synonymies:
Uniola spicata L.
Distichlis
spicata var. stricta
(Torr.) Scribn. [Poaceae]
Synonymies:
Distichlis spicata subsp. stricta (Torr.) Thorne
Distichlis stricta (Torr.) Rydb.
Uniola stricta Torr.
Draba
corymbosa R. Br. ex DC.
[Brassicaceae]
Synonymies:
Draba alpina var. bellii (Holm) O. E. Schulz
Draba bellii Holm
Draba macrocarpa Adams
Draba
glabella Pursh
[Brassicaceae]
Synonymies:
Draba daurica DC.
Draba
incana L.
[Brassicaceae]
Draba
palanderiana Kjellm.
[Brassicaceae]
Dracocephalum
parviflorum Nutt.
[Lamiaceae]
Synonymies:
Moldavica parviflora (Nutt.) Britton
Drosera
anglica Huds.
[Droseraceae]
Drosera
rotundifolia L.
[Droseraceae]
Dryas
octopetala L.
[Rosaceae]
Dryopteris
carthusiana (Vill.) H. P. Fuchs
[Dryopteridaceae]
Synonymies:
Dryopteris spinulosa Watt
Polypodium carthusianum Vill.
Polypodium spinulosum O. F. Müll., nom. illeg.
Dryopteris
cristata (L.) A. Gray
[Dryopteridaceae]
Dryopteris
filix-mas (L.) Schott
[Dryopteridaceae]
Dryopteris
fragrans (L.) Schott
[Dryopteridaceae]
Dryopteris
goldiana (Hook. ex Goldie) A.
Gray [Dryopteridaceae]
Synonymies:
Aspidium goldianum Hook. ex Goldie
Dryopteris
intermedia (Muhl. ex Willd.) A.
Gray [Dryopteridaceae]
Dryopteris
marginalis (L.) A. Gray
[Dryopteridaceae]
Dupontia
fisheri R. Br.
[Poaceae]
Synonymies:
Dupontia fisheri subsp. fisheri
Dupontia fisheri subsp. psilosantha (Rupr.) Hultén
Echinacea
angustifolia DC.
[Asteraceae]
Echinacea
angustifolia var.
angustifolia
[Asteraceae]
Synonymies:
Brauneria angustifolia (DC.) A. Heller
Echinacea pallida var. angustifolia (DC.) Cronquist
Echinocystis
lobata (Michx.) Torr. &
Gray [Cucurbitaceae]
Elaeagnus
commutata Bernh. ex Rydb.
[Elaeagnaceae]
Eleocharis
palustris (L.) Roem. &
Schult. [Cyperaceae]
Synonymies:
Eleocharis intersita Zinserl.
Elodea
canadensis Michx.
[Hydrocharitaceae]
Synonymies:
Anacharis canadensis (Michx.) Planch.
X
Elyhordeum dutillyanum (Lepage)
Bowden [Poaceae]
Synonymies:
X Elymordeum dutillyanum Lepage
Elymus
canadensis L.
[Poaceae]
Synonymies:
Elymus philadelphicus L.
Elymus
elymoides (Raf.) Swezey
[Poaceae]
Synonymies:
Aegilops hystrix Nutt.
Sitanion hystrix (Nutt.) J. G. Sm.
Elymus
glaucus Buckley
[Poaceae]
Elymus
glaucus subsp. virescens
(Piper) Gould [Poaceae]
Synonymies:
Elymus virescens Piper
Elymus
lanceolatus (Scribn. & J.
G. Sm.) Gould [Poaceae]
Elymus
lanceolatus subsp.
albicans (Scribn. & J.
G. Sm.) D. R. Dewey [Poaceae]
Synonymies:
Agropyron albicans Scribn. & J. G. Sm.
Agropyron albicans var. griffithsii (Scribn. & J. G. Sm. ex Piper) Beetle
Agropyron griffithsii Scribn. & J. G. Sm. ex Piper
Agropyron griffithsii Scribn. & J. G. Sm.
Elymus griffithsii (Scribn. & J. G. Sm.) Á. Löve
Elytrigia dasystachya subsp. albicans (Scribn. & J. G. Sm.) D. R. Dewey
Elymus
lanceolatus subsp.
lanceolatus
[Poaceae]
Synonymies:
Agropyron dasystachyum (Hook.) Scribn.
Agropyron dasystachyum var. riparium (Scribn. & J. G. Sm.) Bowden
Agropyron elmeri Scribn.
Agropyron lanceolatum Scribn. & J. G. Sm.
Agropyron riparium Scribn. & J. G. Sm.
Andropogon riparium Scribn. & J. G. Sm.
Elytrigia dasystachya (Hook.) Á. Löve & D. Löve
Elymus
lanceolatus subsp.
psammophilus (J. M. Gillett
& H. Senn) Á. Löve [Poaceae]
Synonymies:
Agropyron psammophilum J. M. Gillett & H. Senn
Elytrigia dasystachya subsp. psammophila (J. M. Gillett & H. Senn) D. R. Dewey
Elymus
lanceolatus subsp.
yukonensis (Scribn. &
Merr.) Á. Löve [Poaceae]
Synonymies:
Agropyron yukonense Scribn. & Merr.
Elytrigia dasystachya subsp. yukonensis (Scribn. & Merr.) D. R. Dewey
Elymus
scribneri (Vasey) M. E. Jones
[Poaceae]
Synonymies:
Agropyron scribneri Vasey
Elymus
trachycaulus (Link) Gould ex
Shinners [Poaceae]
Elymus
trachycaulus subsp.
latiglumis (Scribn. & J.
G. Sm.) Barkworth & D. R. Dewey [Poaceae]
Synonymies:
Agropyron latiglume (Scribn. & J. G. Sm.) Rydb.
Agropyron violaceum var. latiglume Scribn. & J. G. Sm.
Elymus alaskanus subsp. latiglumis (Scribn. & J. G. Sm.) Á. Löve
Elymus
trachycaulus subsp.
subsecundus (Link) Á.
Löve & D. Löve [Poaceae]
Synonymies:
Agropyron subsecundum (Link) Hitchc.
Agropyron trachycaulum var. unilaterale Malte
Agropyron unilaterale Cassidy
Elymus subsecundus (Link) Á. Löve & D. Löve
Triticum subsecundum Link
Elymus
trachycaulus subsp.
trachycaulus
[Poaceae]
Synonymies:
Agropyron novae-angliae Scribn.
Agropyron pauciflorum (Schwein.) Hitchc., nom. illeg.
Agropyron tenerum Vasey
Agropyron trachycaulum (Link) Malte ex H. F. Lewis
Elymus novae-angliae (Scribn.) Tzvelev
Elymus pauciflorus (Schwein.) Gould, nom. illeg.
Roegneria trachycaula (Link) Nevski
Triticum pauciflorum Schwein.
Elymus
trachycaulus subsp.
violaceus (Hornem.)
Á. Löve & D. Löve [Poaceae]
Synonymies:
Agropyron violaceum (Hornem.) Lange
Roegneria violacea (Hornem.) Melderis
Triticum violaceum Hornem.
Elymus
villosus Muhl. ex Willd.
[Poaceae]
Synonymies:
Elymus propinquus Fresen. ex Steud.
Elymus
virginicus L.
[Poaceae]
Synonymies:
Elymus carolinianus Walter
Elymus hirsutiglumis Scribn.
Elymus virginicus var. intermedius (Vasey) Bush
Empetrum
nigrum L.
[Empetraceae]
Epigaea
repens L.
[Ericaceae]
Epilobium
angustifolium L.
[Onagraceae]
Synonymies:
Chamaenerion angustifolium (L.) Scop.
Chamerion angustifolium (L.) Holub
Epilobium spicatum Lam.
Epilobium
latifolium L.
[Onagraceae]
Synonymies:
Chamerion latifolium (L.) Holub
Equisetum
arvense L.
[Equisetaceae]
Equisetum
x ferrissii Clute
[Equisetaceae]
Equisetum
hyemale L.
[Equisetaceae]
Equisetum
hyemale subsp. affine
(Engelm.) Calder & Roy L. Taylor [Equisetaceae]
Equisetum
palustre L.
[Equisetaceae]
Equisetum
telmateia subsp. braunii
(Milde) Hauke [Equisetaceae]
Eragrostis
pectinacea (Michx.) Nees
[Poaceae]
Synonymies:
Eragrostis diffusa Buckley
Poa pectinacea Michx.
Erechtites
hieraciifolia (L.) Raf. ex DC.
[Asteraceae]
Synonymies:
Senecio hieraciifolius L.
Erechtites
hieraciifolia var.
hieraciifolia
[Asteraceae]
Erigeron
acris L.
[Asteraceae]
Synonymies:
Erigeron acer auct.
Erigeron
acris subsp.
droebachiensis (O. F.
Müll.) Arcang. [Asteraceae]
Erigeron
alpinus L.
[Asteraceae]
Erigeron
annuus (L.) Pers.
[Asteraceae]
Synonymies:
Aster annuus L.
Erigeron
caespitosus Nutt.
[Asteraceae]
Erigeron
pulchellus Michx.
[Asteraceae]
Synonymies:
Erigeron bellidifolius Muhl. ex Willd.
Erigeron
radicatus Hook.
[Asteraceae]
Erigeron
speciosus (Lindl.) DC.
[Asteraceae]
Erigeron
uniflorus L.
[Asteraceae]
Eriocaulon
parkeri B. L. Rob.
[Eriocaulaceae]
Eriogonum
niveum Douglas ex Benth.
[Polygonaceae]
Eriogonum
umbellatum Torr.
[Polygonaceae]
Erysimum
asperum (Nutt.) DC.
[Brassicaceae]
Synonymies:
Cheiranthus asper Nutt.
Erysimum
cheiranthoides L.
[Brassicaceae]
Erysimum
inconspicuum (S. Watson)
MacMill. [Brassicaceae]
Erysimum
inconspicuum var.
coarctatum (Fernald)
Rossbach [Brassicaceae]
Synonymies:
Erysimum coarctatum Fernald
Erysimum
inconspicuum var.
inconspicuum
[Brassicaceae]
Synonymies:
Erysimum asperum var. inconspicuum S. Watson
Erysimum parviflorum Nutt., nom. illeg.
Erysimum
pallasii (Pursh) Fernald
[Brassicaceae]
Synonymies:
Cheiranthus pallasii Pursh
Erythronium
americanum Ker Gawl.
[Liliaceae]
Erythronium
grandiflorum Pursh
[Liliaceae]
Erythronium
oregonum Applegate
[Liliaceae]
Erythronium
revolutum Sm.
[Liliaceae]
Synonymies:
Erythronium johnstonii Bol.
Euonymus
atropurpureus Jacq.
[Celastraceae]
Euonymus
obovatus Nutt.
[Celastraceae]
Eupatorium
maculatum L.
[Asteraceae]
Eupatorium
perfoliatum L.
[Asteraceae]
Euphorbia
corollata L.
[Euphorbiaceae]
Eutrema
edwardsii R. Br.
[Brassicaceae]
Fagus
grandifolia Ehrh.
[Fagaceae]
Synonymies:
Fagus americana Sweet
Fagus ferruginea Aiton
Festuca
altaica Trin.
[Poaceae]
Synonymies:
Festuca scabrella Torr. ex Hook.
Festuca
brachyphylla Schult. &
Schult. f. [Poaceae]
Synonymies:
Festuca brevifolia R. Br., nom. illeg.
Festuca ovina var. brachyphylla (Schult.) Hitchc.
Festuca ovina var. brevifolia S. Watson
Festuca
idahoensis Elmer
[Poaceae]
Synonymies:
Festuca ovina var. ingrata Hack. ex Beal
Festuca
lenensis Drobow
[Poaceae]
Festuca
occidentalis Hook.
[Poaceae]
Festuca
rubra L.
[Poaceae]
Festuca
rubra subsp. rubra
[Poaceae]
Synonymies:
Festuca glaucescens Hegetschw. & Heer, nom. illeg.
Festuca rubra subsp. glaucodea Piper
Festuca rubra subsp. vulgaris (Gaudin) Hayek
Festuca rubra var. glaucescens K. Richt., nom. illeg.
Festuca rubra var. glaucescens Hack.
Festuca rubra var. lanuginosa Mert. & W. D. J. Koch
Festuca
subulata Trin.
[Poaceae]
Festuca
subuliflora Scribn.
[Poaceae]
Festuca
viridula Vasey
[Poaceae]
Festuca
vivipara (L.) Sm.
[Poaceae]
Synonymies:
Festuca ovina var. vivipara L.
Fimbristylis
autumnalis (L.) Roem. &
Schult. [Cyperaceae]
Floerkea
proserpinacoides Willd.
[Limnanthaceae]
Fragaria
x ananassa subsp.
cuneifolia (Nutt. ex Howell)
Staudt [Rosaceae]
Synonymies:
Fragaria cuneifolia Nutt. ex Howell
Fragaria x ananassa var. cuneifolia (Nutt. ex Howell) Staudt
Fragaria
chiloensis (L.) Mill.
[Rosaceae]
Synonymies:
Fragaria vesca var. chiloensis L.
Fragaria
chiloensis subsp. lucida
(E. Vilm. ex Gay) Staudt [Rosaceae]
Synonymies:
Fragaria lucida E. Vilm. ex Gay
Fragaria
chiloensis subsp.
pacifica Staudt
[Rosaceae]
Fragaria
vesca L.
[Rosaceae]
Synonymies:
Fragaria insularis Rydb.
Fragaria
vesca f. bracteata (A. Heller)
Staudt [Rosaceae]
Synonymies:
Fragaria bracteata A. Heller
Fragaria crinita Rydb.
Fragaria vesca var. crinita (Rydb.) C. L. Hitchc.
Fragaria
vesca f. helleri (Holzinger)
Staudt [Rosaceae]
Synonymies:
Fragaria helleri Holzinger
Fragaria
vesca subsp. americana
(Porter) Staudt [Rosaceae]
Synonymies:
Fragaria americana (Porter) Britton
Fragaria
vesca subsp. bracteata
(A. Heller) Staudt [Rosaceae]
Fragaria
virginiana Mill.
[Rosaceae]
Fragaria
virginiana subsp. glauca
(S. Watson) Staudt [Rosaceae]
Synonymies:
Fragaria glauca (S. Watson) Rydb.
Fragaria multicipita Fernald
Fragaria ovalis (Lehm.) Rydb.
Fragaria virginiana f. multicipita (Fernald) Catling & J. Cay.
Potentilla ovalis Lehm.
Fragaria
virginiana subsp.
platypetala (Rydb.) Staudt
[Rosaceae]
Synonymies:
Fragaria platypetala Rydb.
Fragaria virginiana var. platypetala (Rydb.) H. M. Hall
Fragaria
virginiana subsp.
virginiana
[Rosaceae]
Synonymies:
Fragaria canadensis Michx.
Frangula
purshiana (DC.) J. G. Cooper
[Rhamnaceae]
Synonymies:
Rhamnus purshiana DC.
Fraxinus
americana L.
[Oleaceae]
Fraxinus
nigra Marshall
[Oleaceae]
Fraxinus
pennsylvanica Marshall
[Oleaceae]
Synonymies:
Fraxinus lanceolata Borkh.
Fraxinus pennsylvanica var. lanceolata (Borkh.) Sarg.
Fraxinus pennsylvanica var. subintegerrima (Vahl) Fernald
Fraxinus pubescens Lam.
Fraxinus
quadrangulata Michx.
[Oleaceae]
Gaillardia
aristata Pursh
[Asteraceae]
Galium
asprellum Michx.
[Rubiaceae]
Galium
boreale L.
[Rubiaceae]
Gamochaeta
purpurea (L.) Cabrera
[Asteraceae]
Synonymies:
Gnaphalium purpureum L.
Gaultheria
humifusa (Graham) Rydb.
[Ericaceae]
Synonymies:
Vaccinium humifusum Graham
Gaultheria
ovatifolia A. Gray
[Ericaceae]
Gaultheria
procumbens L.
[Ericaceae]
Gaultheria
shallon Pursh
[Ericaceae]
Gaura
coccinea Pursh
[Onagraceae]
Synonymies:
Gaura odorata Sessé ex Lag.
Gaylussacia
baccata (Wangenh.) K. Koch
[Ericaceae]
Synonymies:
Andromeda baccata Wangenh.
Gaylussacia
dumosa (Andrews) Torr. & A.
Gray [Ericaceae]
Synonymies:
Vaccinium dumosum Andrews
Gentiana
algida Pall.
[Gentianaceae]
Geranium
carolinianum L.
[Geraniaceae]
Geranium
maculatum L.
[Geraniaceae]
Geranium
robertianum L.
[Geraniaceae]
Geum
aleppicum Jacq.
[Rosaceae]
Geum
calthifolium Menzies ex Sm.
[Rosaceae]
Geum
triflorum Pursh
[Rosaceae]
Gilia
capitata Sims
[Polemoniaceae]
Githopsis
specularioides Nutt.
[Campanulaceae]
Gleditsia
triacanthos L.
[Fabaceae]
Glehnia
littoralis F. Schmidt ex Miq.
[Apiaceae]
Glyceria
canadensis (Michx.) Trin.
[Poaceae]
Synonymies:
Briza canadensis Michx.
Glyceria
elata (Nash) Hitchc.
[Poaceae]
Synonymies:
Panicularia elata Nash
Glyceria
fluitans (L.) R. Br.
[Poaceae]
Synonymies:
Festuca fluitans L.
Panicularia fluitans (L.) Kuntze
Glyceria
grandis S. Watson
[Poaceae]
Synonymies:
Panicularia americana (Torr.) MacMill.
Glyceria
laxa (Scribn.) Scribn.
[Poaceae]
Synonymies:
Panicularia laxa Scribn.
Glyceria
obtusa (Muhl.) Trin.
[Poaceae]
Synonymies:
Poa obtusa Muhl.
Glyceria
pulchella (Nash) K. Schum.
[Poaceae]
Synonymies:
Panicularia pulchella Nash
Glyceria
striata (Lam.) Hitchc.
[Poaceae]
Synonymies:
Panicularia nervata (Willd.) Kuntze
Poa nervata Willd.
Poa striata Lam.
Glycyrrhiza
lepidota Pursh
[Fabaceae]
Gnaphalium
obtusifolium L.
[Asteraceae]
Synonymies:
Pseudognaphalium obtusifolium (L.) Hilliard & Burtt
Grindelia
squarrosa (Pursh) Dunal
[Asteraceae]
Gutierrezia
sarothrae (Pursh) Britton &
Rusby [Asteraceae]
Synonymies:
Gutierrezia diversifolia Greene
Solidago sarothrae Pursh
Xanthocephalum sarothrae (Pursh) Shinners
Gymnocarpium
dryopteris (L.) Newman
[Dryopteridaceae]
Gymnocladus
dioicus (L.) K. Koch
[Fabaceae]
Synonymies:
Guilandina dioica L.
Hamamelis
virginiana L.
[Hamamelidaceae]
Harrimanella
hypnoides (L.) Coville
[Ericaceae]
Synonymies:
Cassiope hypnoides (L.) D. Don
Hedeoma
hispida Pursh
[Lamiaceae]
Hedeoma
pulegioides (L.) Pers.
[Lamiaceae]
Synonymies:
Melissa pulegioides L.
Hedysarum
alpinum L.
[Fabaceae]
Hedysarum
alpinum var. americanum
Michx. [Fabaceae]
Hedysarum
boreale Nutt.
[Fabaceae]
Hedysarum
boreale subsp.
mackenziei (Richardson) S.
L. Welsh [Fabaceae]
Synonymies:
Hedysarum mackenziei Richardson
Hedysarum
boreale var. boreale
[Fabaceae]
Synonymies:
Hedysarum boreale var. cinerascens (Rydb.) Rollins
Hedysarum boreale var. utahense (Rydb.) Rollins
Hedysarum cinerascens Rydb.
Hedysarum pabulare A. Nelson
Hedysarum utahense Rydb.
Hedysarum
sulphurescens Rydb.
[Fabaceae]
Helenium
autumnale L.
[Asteraceae]
Helianthus
annuus L.
[Asteraceae]
Synonymies:
Helianthus annuus subsp. lenticularis (Cockerell) Cockerell
Helianthus annuus var. lenticularis Cockerell
Helianthus annuus var. macrocarpus (DC.) Cockerell
Helianthus lenticularis Douglas
Helianthus
decapetalus L.
[Asteraceae]
Synonymies:
Helianthus trachelifolius Mill.
Helianthus
divaricatus L.
[Asteraceae]
Helianthus
giganteus L.
[Asteraceae]
Helianthus
grosseserratus Mart.
[Asteraceae]
Helianthus
maximilianii Schrad.
[Asteraceae]
Helianthus
nuttallii Torr. & A. Gray
[Asteraceae]
Helianthus
nuttallii subsp.
nuttallii (Torr. & A.
Gray) Heiser [Asteraceae]
Synonymies:
Helianthus coloradensis Cockerell
Helianthus
nuttallii subsp.
rydbergii (Britton) R. Long
[Asteraceae]
Helianthus
pauciflorus Nutt.
[Asteraceae]
Helianthus
pauciflorus subsp.
subrhomboideus (Rydb.) O.
Spring & E. E. Schill. [Asteraceae]
Synonymies:
Helianthus laetiflorus var. subrhomboideus (Rydb.) Fernald
Helianthus rigidus subsp. subrhomboideus (Rydb.) Heiser
Helianthus
petiolaris Nutt.
[Asteraceae]
Helianthus
petiolaris subsp.
petiolaris
[Asteraceae]
Helianthus
strumosus L.
[Asteraceae]
Synonymies:
Helianthus macrophyllus Willd.
Helictotrichon
hookeri (Scribn.) Henrard
[Poaceae]
Synonymies:
Avena hookeri Scribn.
Avenula hookeri (Scribn.) Holub
Heliopsis
helianthoides (L.) Sweet
[Asteraceae]
Synonymies:
Buphthalmum helianthoides L.
Heliopsis
helianthoides var.
scabra (Dunal) Fernald
[Asteraceae]
Synonymies:
Heliopsis scabra Dunal
Heracleum
sphondylium L.
[Apiaceae]
Hesperostipa
comata (Trin. & Rupr.)
Barkworth [Poaceae]
Synonymies:
Stipa comata Trin. & Rupr.
Hesperostipa
comata subsp. comata
[Poaceae]
Hesperostipa
comata subsp. intermedia
(Scribn. & Tweedy) Barkworth [Poaceae]
Synonymies:
Stipa comata var. intermedia Scribn. & Tweedy
Hesperostipa
spartea (Trin.) Barkworth
[Poaceae]
Synonymies:
Stipa spartea Trin.
Heteranthera
dubia (Jacq.) MacMill.
[Pontederiaceae]
Synonymies:
Commelina dubia L.
Zosterella dubia (Jacq.) Small
Heterotheca
villosa (Pursh) Shinners
[Asteraceae]
Synonymies:
Amellus villosa Pursh
Chrysopsis villosa (Pursh) Nutt. ex DC.
Heterotheca
villosa var. minor
(Hook.) Semple [Asteraceae]
Synonymies:
Chrysopsis villosa var. hispida (Hook.) A. Gray
Chrysopsis villosa var. minor Hook.
Heterotheca villosa var. hispida (Hook.) V. L. Harms
Heterotheca
villosa var. villosa
[Asteraceae]
Synonymies:
Chrysopsis villosa var. villosa
Heuchera
micrantha Douglas ex Lindl.
[Saxifragaceae]
Hieracium
umbellatum L.
[Asteraceae]
Synonymies:
Hieracium scabriusculum Schwein.
Hierochloe
odorata (L.) P. Beauv.
[Poaceae]
Synonymies:
Hierochloe borealis Roem. & Schult., nom. illeg.
Torresia odorata (L.) Hitchc.
Holodiscus
discolor (Pursh) Maxim.
[Rosaceae]
Synonymies:
Holodiscus discolor var. ariaefolius (Sm.) Asch. & Graebn.
Spiraea discolor Pursh
Hordeum
brachyantherum Nevski
[Poaceae]
Hordeum
brachyantherum subsp.
brachyantherum
[Poaceae]
Synonymies:
Critesion brachyantherum (Nevski) Barkworth & D. R. Dewey
Hordeum boreale Scribn. & J. G. Sm., nom. illeg.
Hordeum
depressum (Scribn. & J. G.
Sm.) Rydb. [Poaceae]
Synonymies:
Hordeum nodosum var. depressum Scribn. & J. G. Sm.
Hordeum
jubatum L.
[Poaceae]
Synonymies:
Critesion jubatum (L.) Nevski
Hordeum caespitosum Scribn.
Hordeum jubatum var. caespitosum (Scribn.) Hitchc.
Hordeum
pusillum Nutt.
[Poaceae]
Houstonia
caerulea L.
[Rubiaceae]
Humulus
lupulus L.
[Cannabaceae]
Humulus
lupulus var. lupuloides
E. Small [Cannabaceae]
Humulus
lupulus var.
neomexicanus A. Nelson &
Cockerell [Cannabaceae]
Hydrastis
canadensis L.
[Ranunculaceae]
Hydrocotyle
umbellata L.
[Apiaceae]
Hymenoxys
richardsonii (Hook.) Cockerell
[Asteraceae]
Synonymies:
Picradenia richardsonii Hook.
Hypericum
kalmianum L.
[Clusiaceae]
Hypericum
mutilum L.
[Clusiaceae]
Hypericum
prolificum L.
[Clusiaceae]
Synonymies:
Hypericum spathulatum (Spach) Steud.
Hypericum
punctatum Lam.
[Clusiaceae]
Synonymies:
Hypericum maculatum Walter, nom. illeg.
Ilex
glabra (L.) A. Gray
[Aquifoliaceae]
Ilex
verticillata (L.) A. Gray
[Aquifoliaceae]
Iliamna
rivularis (Douglas ex Hook.)
Greene [Malvaceae]
Synonymies:
Malva rivularis Douglas ex Hook.
Ipomoea
pandurata (L.) G. Mey.
[Convolvulaceae]
Ipomopsis
aggregata (Pursh) V. E. Grant
[Polemoniaceae]
Synonymies:
Cantua aggregata Pursh
Gilia aggregata (Pursh) Spreng.
Iris
lacustris Nutt.
[Iridaceae]
Iris
missouriensis Nutt.
[Iridaceae]
Iris
versicolor L.
[Iridaceae]
Isoetes
echinospora Durieu
[Isoetaceae]
Isolepis
cernua (Vahl) Roem. &
Schult. [Cyperaceae]
Synonymies:
Scirpus cernuus Vahl
Iva
axillaris Pursh
[Asteraceae]
Iva
frutescens var. oraria
(Bartlett) Fernald & Griscom [Asteraceae]
Iva
xanthifolia Nutt.
[Asteraceae]
Juglans
cinerea L.
[Juglandaceae]
Juglans
nigra L.
[Juglandaceae]
Juncus
articulatus L.
[Juncaceae]
Juncus
balticus Willd.
[Juncaceae]
Juncus
effusus var. decipiens
Buchenau [Juncaceae]
Synonymies:
Juncus decipiens (Buchenau) Nakai
Juncus
filiformis L.
[Juncaceae]
Juncus
gerardii Loisel.
[Juncaceae]
Juncus
longistylis Torr.
[Juncaceae]
Juncus
tenuis Willd.
[Juncaceae]
Juniperus
communis L.
[Cupressaceae]
Juniperus
communis subsp. alpina
(Suter) Celak. [Cupressaceae]
Synonymies:
Juniperus communis subsp. nana Syme
Juniperus communis var. alpina Suter
Juniperus communis var. montana Aiton
Juniperus communis var. nipponica (Maxim.) E. H. Wilson
Juniperus communis var. saxatilis Pall.
Juniperus communis var. sibirica (Burgsd.) Rydb.
Juniperus sibirica Burgsd.
Juniperus
communis subsp. depressa
(Pursh) Franco [Cupressaceae]
Synonymies:
Juniperus communis var. depressa Pursh
Juniperus
horizontalis Moench
[Cupressaceae]
Synonymies:
Juniperus horizontalis var. argentea hort.
Juniperus horizontalis var. glauca Hornibr.
Juniperus
scopulorum Sarg.
[Cupressaceae]
Juniperus
virginiana L.
[Cupressaceae]
Kalmia
angustifolia L.
[Ericaceae]
Synonymies:
Kalmia intermedia Lange
Kalmia
angustifolia var.
angustifolia
[Ericaceae]
Kalmia
microphylla (Hook.) A. Heller
[Ericaceae]
Synonymies:
Kalmia glauca var. microphylla Hook.
Kalmia polifolia var. microphylla (Hook.) Rehder
Kalmia
microphylla var.
microphylla
[Ericaceae]
Kalmia
microphylla var.
occidentalis (Small) Ebinger
[Ericaceae]
Synonymies:
Kalmia microphylla subsp. occidentalis (Small) Roy L. Taylor & MacBryde
Kalmia occidentalis Small
Kalmia
polifolia Wangenh.
[Ericaceae]
Synonymies:
Kalmia glauca Aiton
Kobresia
bellardii (All.) Degl.
[Cyperaceae]
Synonymies:
Carex bellardii All.
Koeleria
macrantha (Ledeb.) Schult.
[Poaceae]
Synonymies:
Aira cristata L.
Aira macrantha Ledeb.
Koeleria albescens auct.
Koeleria cristata auct.
Koeleria gracilis Pers.
Koeleria mukdenensis Domin
Koeleria nitida Nutt.
Koeleria pyramidata auct. Amer.
Krascheninnikovia
lanata (Pursh) A. Meeuse &
A. Smit [Chenopodiaceae]
Synonymies:
Ceratoides lanata (Pursh) J. T. Howell
Diotis lanata Pursh
Eurotia lanata (Pursh) Moq.
Lactuca
canadensis L.
[Asteraceae]
Lactuca
canadensis var.
longifolia (Michx.) Farw.
[Asteraceae]
Synonymies:
Lactuca longifolia Michx.
Lactuca
tatarica (L.) C. A. Mey.
[Asteraceae]
Lactuca
tatarica subsp.
pulchella (Pursh) Stebbins
[Asteraceae]
Synonymies:
Lactuca oblongifolia Nutt.
Lactuca pulchella (Pursh) DC.
Sonchus pulchellus Pursh
Laportea
canadensis (L.) Wedd.
[Urticaceae]
Synonymies:
Urtica canadensis L.
Lappula
redowskii (Hornem.) Greene
[Boraginaceae]
Synonymies:
Myosotis redowskii Hornem.
Larix
laricina (Du Roi) K. Koch
[Pinaceae]
Synonymies:
Pinus laricina Du Roi
Larix
lyallii Parl.
[Pinaceae]
Larix
occidentalis Nutt.
[Pinaceae]
Lathyrus
japonicus Willd.
[Fabaceae]
Lathyrus
japonicus subsp.
japonicus
[Fabaceae]
Lathyrus
japonicus subsp.
maritimus (L.) P. W. Ball
[Fabaceae]
Synonymies:
Lathyrus japonicus var. glaber (Ser.) Fernald
Lathyrus maritimus Bigelow
Lathyrus
nevadensis S. Watson
[Fabaceae]
Synonymies:
Vicia nana Kellogg, nom. illeg.
Lathyrus
ochroleucus Hook.
[Fabaceae]
Lathyrus
palustris L.
[Fabaceae]
Lathyrus
venosus Muhl. ex Willd.
[Fabaceae]
Synonymies:
Lathyrus oreophyllus Wooton & Standl.
Lathyrus
venosus var. intonsus
Butters & H. St. John [Fabaceae]
Synonymies:
Lathyrus venosus var. meridionalis Butters & H. St. John
Ledum
glandulosum Nutt.
[Ericaceae]
Ledum
glandulosum var.
columbianum (Piper) C. L.
Hitchc. [Ericaceae]
Synonymies:
Ledum columbianum Piper
Ledum
glandulosum var.
glandulosum
[Ericaceae]
Ledum
palustre L.
[Ericaceae]
Synonymies:
Rhododendron palustre (L.) Kron & Judd, nom. illeg.
Rhododendron tomentosum (Stokes) Harmaja
Leersia
oryzoides (L.) Sw.
[Poaceae]
Synonymies:
Homalocenchrus oryzoides (L.) Haller
Lemna
minor L.
[Lemnaceae]
Lemna
trisulca L.
[Lemnaceae]
Lepidium
densiflorum Schrad.
[Brassicaceae]
Lepidium
ramosissimum A. Nelson
[Brassicaceae]
Lepidium
ramosissimum var.
bourgeauanum (Thell.)
Rollins [Brassicaceae]
Synonymies:
Lepidium bourgeauanum Thell.
Lepidium
ramosissimum var.
ramosissimum
[Brassicaceae]
Lepidium
virginicum L.
[Brassicaceae]
Lepidium
virginicum var.
menziesii (DC.) C. L.
Hitchc. [Brassicaceae]
Synonymies:
Lepidium menziesii DC.
Lespedeza
capitata Michx.
[Fabaceae]
Lespedeza
frutescens (L.) Hornem.
[Fabaceae]
Synonymies:
Hedysarum frutescens L.
Lespedeza intermedia Britton, nom. illeg.
Lespedeza violacea auct.
Lespedeza
hirta (L.) Hornem.
[Fabaceae]
Synonymies:
Hedysarum hirtum L.
Lespedeza
violacea (L.) Pers.
[Fabaceae]
Synonymies:
Hedysarum violaceum L.
Lespedeza intermedia auct.
Lespedeza stuevei var. intermedia S. Watson
Lespedeza
virginica (L.) Britton
[Fabaceae]
Synonymies:
Medicago virginica L.
Lesquerella
alpina (Nutt.) S. Watson
[Brassicaceae]
Synonymies:
Vesicaria alpina Nutt.
Lesquerella
arctica (Wormsk. ex Hornem.) S.
Watson [Brassicaceae]
Synonymies:
Alyssum arcticum Wormsk. ex Hornem.
Lesquerella
arenosa (Richardson) Rydb.
[Brassicaceae]
Synonymies:
Vesicaria arenosa Richardson
Lesquerella
calderi G. A. Mulligan & A.
E. Porsild [Brassicaceae]
Lesquerella
douglasii S. Watson
[Brassicaceae]
Leucophysalis
grandiflora (Hook.) Rydb.
[Solanaceae]
Synonymies:
Chamaesaracha grandiflora (Hook.) Fernald
Physalis grandiflora Hook.
Lewisia
columbiana (Howell) B. L. Rob.
[Portulacaceae]
Synonymies:
Calandrinia columbiana Howell ex A. Gray
Lewisia
tweedyi (A. Gray) B. L. Rob.
[Portulacaceae]
Synonymies:
Calandrinia tweedyi A. Gray
Leymus
cinereus (Scribn. & Merr.)
Á. Löve [Poaceae]
Synonymies:
Elymus cinereus Scribn. & Merr.
Leymus
innovatus (Beal) Pilg.
[Poaceae]
Synonymies:
Elymus innovatus Beal
Leymus
mollis (Trin.) Pilg.
[Poaceae]
Synonymies:
Elymus arenarius var. mollis (Trin.) Koidz.
Elymus arenarius var. villosus E. Mey.
Elymus mollis Trin.
Leymus
x vancouverensis (Vasey) Pilg.
[Poaceae]
Synonymies:
Elymus vancouverensis Vasey
Liatris
punctata Hook.
[Asteraceae]
Liatris
spicata (L.) Willd.
[Asteraceae]
Synonymies:
Laciniaria spicata (L.) Kuntze
Liatris callilepis hort., ined.
Ligusticum
scoticum L.
[Apiaceae]
Lilaeopsis
chinensis (L.) Kuntze
[Apiaceae]
Synonymies:
Crantzia lineata (Michx.) Nutt.
Hydrocotyle lineata Michx.
Lilaeopsis lineata (Michx.) Greene
Lilium
canadense L.
[Liliaceae]
Lilium
philadelphicum L.
[Liliaceae]
Limnanthes
macounii Trel.
[Limnanthaceae]
Linaria
canadensis (L.) Dum. Cours.
[Scrophulariaceae]
Synonymies:
Antirrhinum canadense L.
Nuttallanthus canadensis (L.) D. A. Sutton
Lindera
benzoin (L.) Blume
[Lauraceae]
Synonymies:
Benzoin aestivale (L.) Nees
Linum
lewisii Pursh
[Linaceae]
Linum
rigidum Pursh
[Linaceae]
Linum
sulcatum Riddell
[Linaceae]
Linum
virginianum L.
[Linaceae]
Liriodendron
tulipifera L.
[Magnoliaceae]
Synonymies:
Liriodendron tulipifera f. aureo-marginatum (Dippel) Schelle
Liriodendron tulipifera f. integrifolium (G. Kirchn.) Schelle
Lithospermum
ruderale Douglas ex Lehm.
[Boraginaceae]
Lobelia
cardinalis L.
[Campanulaceae]
Synonymies:
Lobelia cardinalis subsp. graminea (Lam.) McVaugh
Lobelia fulgens Willd.
Lobelia graminea Lam.
Lobelia splendens Willd.
Lobelia
inflata L.
[Campanulaceae]
Lobelia
siphilitica L.
[Campanulaceae]
Loiseleuria
procumbens (L.) Desv.
[Ericaceae]
Synonymies:
Azalea procumbens L.
Lomatium
ambiguum (Nutt.) J. M. Coult.
& Rose [Apiaceae]
Lomatium
dissectum (Nutt.) Mathias &
Constance [Apiaceae]
Synonymies:
Ferula multifida (Nutt.) A. Gray
Leptotaenia dissectum Nutt.
Leptotaenia multifida Nutt.
Lomatium
macrocarpum (Nutt. ex Torr.
& A. Gray) J. M. Coult. & Rose [Apiaceae]
Lonicera
dioica L.
[Caprifoliaceae]
Lonicera
involucrata (Richardson) Banks
ex Spreng. [Caprifoliaceae]
Synonymies:
Xylosteon involucratum Richardson
Lonicera
oblongifolia (Goldie) Hook.
[Caprifoliaceae]
Synonymies:
Xylosteon oblongifolium Goldie
Lotus
denticulatus (Drew) Greene
[Fabaceae]
Synonymies:
Hosackia denticulata Drew
Lotus
micranthus Benth.
[Fabaceae]
Lotus
unifoliolatus (Hook.) Benth.
[Fabaceae]
Synonymies:
Hosackia americana (Nutt.) Piper
Hosackia purshiana Benth., nom. illeg.
Lotus americanus (Nutt.) Bisch., nom. illeg.
Lotus purshianus Clem. & E. G. Clem.
Lotus sericeus Pursh, nom. illeg.
Trigonella americana Nutt.
Lotus
unifoliolatus var.
unifoliolatus
[Fabaceae]
Synonymies:
Hosackia unifoliolata Hook.
Lotus purshianus var. glaber (Nutt.) Munz
Ludwigia
palustris (L.) Elliott
[Onagraceae]
Synonymies:
Isnardia palustris L.
Luetkea
pectinata (Pursh) Kuntze
[Rosaceae]
Synonymies:
Saxifraga pectinata Pursh
Lupinus
arbustus Douglas ex Lindl.
[Fabaceae]
Synonymies:
Lupinus arbustus subsp. neolaxiflorus D. B. Dunn
Lupinus laxiflorus auct.
Lupinus
arcticus S. Watson
[Fabaceae]
Lupinus
arcticus subsp. arcticus
[Fabaceae]
Lupinus
arcticus subsp.
subalpinus (Piper & B.
L. Rob.) D. B. Dunn [Fabaceae]
Synonymies:
Lupinus subalpinus Piper & B. L. Rob.
Lupinus
argenteus Pursh
[Fabaceae]
Lupinus
argenteus var. argenteus
[Fabaceae]
Synonymies:
Lupinus argenteus var. tenellus (Douglas ex D. Don) D. B. Dunn, nom. illeg.
Lupinus laxiflorus Douglas ex Lindl.
Lupinus tenellus Douglas ex G. Don
Lupinus
bicolor Lindl.
[Fabaceae]
Synonymies:
Lupinus bicolor subsp. tridentatus (Eastw. ex C. P. Sm.) D. B. Dunn
Lupinus micranthus Douglas, nom. illeg.
Lupinus polycarpus Greene
Lupinus
lepidus Douglas ex Lindl.
[Fabaceae]
Lupinus
lepidus var. lepidus
[Fabaceae]
Synonymies:
Lupinus minimus Douglas ex Hook.
Lupinus
lepidus var. lobbii (A.
Gray ex S. Watson) C. L. Hitchc. [Fabaceae]
Synonymies:
Lupinus aridus var. lobbii A. Gray ex S. Watson
Lupinus lyallii A. Gray
Lupinus
leucophyllus Douglas ex Lindl.
[Fabaceae]
Synonymies:
Lupinus canescens Howell
Lupinus cyaneus Rydb.
Lupinus erectus L. F. Hend.
Lupinus leucophyllus subsp. erectus (L. F. Hend.) Harmon
Lupinus leucophyllus subsp. leucophyllus
Lupinus leucophyllus var. belliae C. P. Sm.
Lupinus leucophyllus var. canescens (Howell) C. P. Sm.
Lupinus
littoralis Douglas
[Fabaceae]
Lupinus
microcarpus Sims
[Fabaceae]
Lupinus
microcarpus var.
microcarpus
[Fabaceae]
Synonymies:
Lupinus ruber A. Heller
Lupinus
nootkatensis Donn ex Sims
[Fabaceae]
Lupinus
perennis L.
[Fabaceae]
Lupinus
polyphyllus Lindl.
[Fabaceae]
Synonymies:
Lupinus polyphyllus var. albiflorus Lindl.
Lupinus
polyphyllus var.
humicola (A. Nelson) Barneby
[Fabaceae]
Synonymies:
Lupinus humicola A. Nelson
Lupinus wyethii S. Watson
Lupinus
polyphyllus var.
polyphyllus
[Fabaceae]
Synonymies:
Lupinus polyphyllus var. grandifolius Lindl. ex J. Agardh
Lupinus
pusillus Pursh
[Fabaceae]
Lupinus
rivularis Douglas ex Lindl.
[Fabaceae]
Lupinus
sericeus Pursh
[Fabaceae]
Synonymies:
Lupinus flexuosus Lindl. ex J. Agardh
Lupinus leucopsis J. Agardh
Lupinus ornatus Douglas
Lupinus sericeus var. egglestonianus C. P. Sm.
Lupinus sericeus var. flexuosus (Lindl. ex J. Agardh) C. P. Sm.
Lupinus sericeus var. maximus Fleak & D. B. Dunn
Lupinus
sulphureus Douglas ex Hook.
[Fabaceae]
Lycopodium
obscurum L.
[Lycopodiaceae]
Lygodesmia
juncea (Pursh) D. Don
[Asteraceae]
Synonymies:
Prenanthes juncea Pursh
Lysichiton
americanus Hultén &
H. St. John [Araceae]
Synonymies:
Lysichiton camtschatcensis auct.
Lysimachia
terrestris (L.) Britton et al.
[Primulaceae]
Machaeranthera
canescens (Pursh) A. Gray
[Asteraceae]
Synonymies:
Aster canescens Pursh
Machaeranthera ramosa A. Nelson
Machaeranthera spinulosa Greene
Machaeranthera
grindelioides (Nutt.) Shinners
[Asteraceae]
Synonymies:
Eriocarpum grindelioides Nutt.
Machaeranthera grindelioides (Nutt.) Britton
Machaeranthera
pinnatifida (Hook.) Shinners
[Asteraceae]
Synonymies:
Amellus spinulosus Pursh
Diplopappus pinnatifidus Hook.
Haplopappus spinulosus (Pursh) DC.
Magnolia
acuminata L.
[Magnoliaceae]
Magnolia
acuminata var. acuminata
[Magnoliaceae]
Mahonia
aquifolium (Pursh) Nutt.
[Berberidaceae]
Synonymies:
Berberis aquifolium Pursh
Berberis diversifolia (Sweet) Steud.
Mahonia diversifolia Sweet
Mahonia
nervosa (Pursh) Nutt.
[Berberidaceae]
Synonymies:
Berberis nervosa Pursh
Mahonia
repens (Lindl.) G. Don
[Berberidaceae]
Synonymies:
Berberis repens Lindl.
Berberis sonnei (Abrams) McMinn
Mahonia repens var. rotundifolia (May) Fedde
Mahonia sonnei Abrams
Maianthemum
canadense Desf.
[Liliaceae]
Maianthemum
dilatatum (A. W. Wood) A.
Nelson & J. F. Macbr. [Liliaceae]
Synonymies:
Maianthemum bifolium var. dilatatum A. W. Wood
Malus
coronaria (L.) Mill.
[Rosaceae]
Synonymies:
Malus bracteata Rehder
Malus coronaria var. dasycalyx Rehder
Malus fragrans Rehder
Malus glabrata Rehder
Malus glaucescens Rehder
Malus lancifolia Rehder
Malus
fusca (Raf.) C. K. Schneid.
[Rosaceae]
Synonymies:
Malus diversifolia (Bong.) M. Roem.
Malus fusca var. diversifolia (Bong.) C. K. Schneid.
Malus rivularis Douglas ex Hook.
Pyrus diversifolia Bong.
Pyrus fusca Raf.
Pyrus rivularis Douglas ex Hook.
Marsilea
vestita Hook. & Grev.
[Marsileaceae]
Matricaria
matricarioides (Less.) Porter
[Asteraceae]
Synonymies:
Artemisia matricarioides Less.
Chamomilla suaveolens (Pursh) Rydb.
Santolina suaveolens Pursh
Melica
bulbosa Geyer ex Porter &
J. M. Coult. [Poaceae]
Melica
subulata (Griseb.) Scribn.
[Poaceae]
Synonymies:
Bromus subulatus Griseb.
Menispermum
canadense L.
[Menispermaceae]
Mentha
canadensis L.
[Lamiaceae]
Synonymies:
Mentha arvensis f. glabrata (Fernald) S. R. Stewart
Mentha arvensis f. piperascens Malinv. ex Holmes
Mentha arvensis var. glabrata Fernald
Mentha arvensis var. piperascens Malinv. ex L. H. Bailey
Menyanthes
trifoliata L.
[Menyanthaceae]
Menziesia
ferruginea Sm.
[Ericaceae]
Menziesia
ferruginea subsp.
ferruginea
[Ericaceae]
Menziesia
ferruginea subsp.
glabella (A. Gray) Calder
& Roy L. Taylor [Ericaceae]
Synonymies:
Menziesia glabella A. Gray
Mertensia
virginica (L.) Pers. ex Link
[Boraginaceae]
Microsteris
gracilis (Hook.) Greene
[Polemoniaceae]
Synonymies:
Collomia gracilis (Hook.) Douglas ex Benth.
Gilia gracilis Hook.
Phlox gracilis (Hook.) Greene
Milium
effusum L.
[Poaceae]
Mimulus
guttatus Fisch. ex DC.
[Scrophulariaceae]
Mimulus
ringens var. colpophilus
Fernald [Scrophulariaceae]
Mirabilis
nyctaginea (Michx.) MacMill.
[Nyctaginaceae]
Synonymies:
Allionia nyctaginea Michx.
Mitchella
repens L.
[Rubiaceae]
Moehringia
macrophylla (Hook.) Fenzl
[Caryophyllaceae]
Synonymies:
Arenaria macrophylla Hook.
Monarda
fistulosa L.
[Lamiaceae]
Morus
rubra L.
[Moraceae]
Muhlenbergia
asperifolia (Nees & Meyen)
Parodi [Poaceae]
Synonymies:
Vilfa asperifolia Nees & C. A. Mey.
Muhlenbergia
mexicana (L.) Trin.
[Poaceae]
Synonymies:
Agrostis mexicana L.
Muhlenbergia
schreberi J. F. Gmel.
[Poaceae]
Synonymies:
Muhlenbergia diffusa Willd.
Musineon
divaricatum (Pursh) Nutt. ex
Torr. & A. Gray [Apiaceae]
Synonymies:
Seseli divaricatum Pursh
Myrica
gale L.
[Myricaceae]
Myrica
pensylvanica Mirb.
[Myricaceae]
Myriophyllum
heterophyllum Michx.
[Haloragaceae]
Myriophyllum
sibiricum Kom.
[Haloragaceae]
Synonymies:
Myriophyllum exalbescens Fernald
Myriophyllum
verticillatum L.
[Haloragaceae]
Najas
guadalupensis (Spreng.) Magnus
[Najadaceae]
Nassella
viridula (Trin.) Barkworth
[Poaceae]
Synonymies:
Stipa viridula Trin.
Navarretia
squarrosa (Eschsch.) Hook.
& Arn. [Polemoniaceae]
Synonymies:
Hoitzia squarrosa Eschsch.
Nelumbo
lutea Willd.
[Nelumbonaceae]
Synonymies:
Nelumbo pentapetala (Walter) Willd.
Nymphaea pentapetala Walter
Nuphar
advena (Aiton) W. T. Aiton
[Nymphaeaceae]
Synonymies:
Nuphar lutea subsp. advena (Aiton) Kartesz & Gandhi
Nymphaea advena Aiton
Nuphar
polysepala Engelm.
[Nymphaeaceae]
Synonymies:
Nuphar lutea subsp. polysepala (Engelm.) E. O. Beal
Nuphar
variegata Durand
[Nymphaeaceae]
Synonymies:
Nuphar lutea subsp. variegata (Durand) E. O. Beal
Nymphaea
odorata Aiton
[Nymphaeaceae]
Nymphaea
odorata subsp. odorata
[Nymphaeaceae]
Synonymies:
Castalia odorata Woodv. & Wood
Nymphaea
odorata subsp. tuberosa
(Paine) Wiersema & Hellq. [Nymphaeaceae]
Synonymies:
Nymphaea tuberosa Paine
Nymphaea
tetragona Georgi
[Nymphaeaceae]
Nyssa
sylvatica Marshall
[Cornaceae]
Oenothera
biennis L.
[Onagraceae]
Synonymies:
Oenothera acutifolia Rostanski, nom. invalidum
Oenothera biennis var. sulfurea Kleb., nom. invalidum
Oenothera chicagoensis Renner ex R. E. Cleland & Blakeslee, nom. invalidum
Oenothera purpurata Kleb.
Oenothera rubricaulis Kleb.
Oenothera suaveolens Pers.
Onagra biennis (L.) Scop.
Oenothera
caespitosa Nutt.
[Onagraceae]
Oenothera
fruticosa subsp. glauca
(Michx.) Straley, nom. illeg. [Onagraceae]
Synonymies:
Oenothera glauca Michx.
Oenothera
nutans G. F. Atk. &
Bartlett [Onagraceae]
Synonymies:
Oenothera austromontana (Munz) P. H. Raven et al.
Oenothera
oakesiana (A. Gray) J. W.
Robbins ex S. Watson [Onagraceae]
Synonymies:
Oenothera ammophila Focke
Oenothera syrticola Bartlett, nom. invalidum
Oenothera
parviflora L.
[Onagraceae]
Synonymies:
Oenothera atrovirens Shull & Bartlett
Oenothera cruciata Nutt. ex G. Don
Oenothera lipsiensis Rostanski & Gutte
Oenothera parviflora subsp. angustissima (R. R. Gates) Munz
Oenothera
villosa Thunb.
[Onagraceae]
Oenothera
villosa subsp. strigosa
(Rydb.) W. Dietr. & P. H. Raven [Onagraceae]
Synonymies:
Oenothera cheradophila Bartlett
Oenothera strigosa (Rydb.) Mack. & Bush
Oenothera strigosa subsp. cheradophila (Bartlett) Munz
Oenothera
villosa subsp. villosa
[Onagraceae]
Synonymies:
Oenothera canovirens E. Steele
Oenothera strigosa subsp. canovirens (E. Steele) Munz
Onoclea
sensibilis L.
[Dryopteridaceae]
Onosmodium
molle Michx.
[Boraginaceae]
Oplopanax
horridus (Sm.) Miq.
[Araliaceae]
Synonymies:
Echinopanax horridus (Sm.) Decne. & Planch., nom. invalidum
Fatsia horrida (Sm.) Benth. & Hook. f. ex W. H. Brewer & S. Watson
Opuntia
humifusa (Raf.) Raf.
[Cactaceae]
Synonymies:
Cactus humifusus Raf.
Opuntia compressa auct.
Opuntia vulgaris auct. nonn.
Opuntia
polyacantha Haw.
[Cactaceae]
Osmunda
cinnamomea L.
[Osmundaceae]
Osmunda
claytoniana L.
[Osmundaceae]
Ostrya
virginiana (Mill.) K. Koch
[Betulaceae]
Synonymies:
Carpinus virginiana Mill.
Oxalis
stricta L.
[Oxalidaceae]
Synonymies:
Oxalis europaea Jordan
Oxypolis
rigidior (L.) Raf.
[Apiaceae]
Synonymies:
Sium rigidius L.
Oxyria
digyna (L.) Hill
[Polygonaceae]
Synonymies:
Rumex digynus L.
Oxytropis
besseyi (Rydb.) Blank.
[Fabaceae]
Oxytropis
campestris (L.) DC.
[Fabaceae]
Oxytropis
campestris var.
johannensis Fernald
[Fabaceae]
Oxytropis
campestris var. spicata
Hook. [Fabaceae]
Synonymies:
Aragallus gracilis A. Nelson
Oxytropis campestris var. gracilis (A. Nelson) Barneby
Oxytropis gracilis (A. Nelson) K. Schum.
Oxytropis
campestris var. varians
(Rydb.) Barneby [Fabaceae]
Synonymies:
Aragallus varians Rydb.
Oxytropis varians (Rydb.) K. Schum.
Oxytropis
deflexa (Pall.) DC.
[Fabaceae]
Oxytropis
deflexa var. deflexa
[Fabaceae]
Synonymies:
Astragalus deflexus Pall.
Oxytropis
deflexa var. sericea
Torr. & A. Gray [Fabaceae]
Oxytropis
huddelsonii A. E. Porsild
[Fabaceae]
Oxytropis
lambertii Pursh
[Fabaceae]
Oxytropis
lambertii var. lambertii
[Fabaceae]
Oxytropis
maydelliana Trautv.
[Fabaceae]
Oxytropis
nigrescens (Pall.) Fisch. ex
DC. [Fabaceae]
Synonymies:
Astragalus nigrescens Pall.
Oxytropis
sericea Nutt.
[Fabaceae]
Oxytropis
sericea var. speciosa
(Torr. & A. Gray) S. L. Welsh [Fabaceae]
Synonymies:
Aragallus macounii Greene
Oxytropis campestris var. speciosa Torr. & A. Gray
Oxytropis macounii (Greene) Rydb.
Oxytropis
splendens Douglas ex Hook.
[Fabaceae]
Oxytropis
viscida Nutt.
[Fabaceae]
Panax
quinquefolius L.
[Araliaceae]
Panicum
capillare L.
[Poaceae]
Synonymies:
Panicum barbipulvinatum Nash
Panicum
clandestinum L.
[Poaceae]
Panicum
dichotomiflorum Michx.
[Poaceae]
Panicum
dichotomum L.
[Poaceae]
Synonymies:
Dichanthelium dichotomum (L.) Gould
Panicum
gattingeri Nash
[Poaceae]
Panicum
virgatum L.
[Poaceae]
Papaver
nudicaule L.
[Papaveraceae]
Synonymies:
Papaver miyabeanum Tatew. ex Miyabe & Tatew.
Papaver
nudicaule subsp.
americanum Randell ex D. F.
Murray [Papaveraceae]
Parietaria
pensylvanica Muhl. ex Willd.
[Urticaceae]
Parthenocissus
quinquefolia (L.) Planch.
[Vitaceae]
Parthenocissus
vitacea (Knerr) Hitchc.
[Vitaceae]
Synonymies:
Ampelopsis quinquefolia var. vitacea Knerr
Parthenocissus inserta auct.
Pascopyrum
smithii (Rydb.) Á.
Löve [Poaceae]
Synonymies:
Agropyron glaucum var. occidentale Scribn.
Agropyron occidentale (Scribn.) Scribn.
Agropyron smithii Rydb.
Agropyron smithii var. molle (Scribn. & J. G. Sm.) M. E. Jones
Agropyron spicatum var. molle Scribn. & J. G. Sm.
Elymus smithii (Rydb.) Gould
Elytrigia smithii (Rydb.) Á. Löve
Paxistima
myrsinites (Pursh) Raf.
[Celastraceae]
Synonymies:
Ilex myrsinites Pursh
Pedicularis
furbishiae S. Watson
[Scrophulariaceae]
Pediomelum
argophyllum (Pursh) J. W.
Grimes [Fabaceae]
Synonymies:
Psoralea argophylla Pursh
Pediomelum
esculentum (Pursh) Rydb.
[Fabaceae]
Synonymies:
Psoralea esculenta Pursh
Peltandra
virginica (L.) Schott
[Araceae]
Penstemon
albertinus Greene
[Scrophulariaceae]
Penstemon
davidsonii Greene
[Scrophulariaceae]
Penstemon
fruticosus (Pursh) Greene
[Scrophulariaceae]
Penstemon
fruticosus var. scouleri
(Lindl.) Cronquist [Scrophulariaceae]
Synonymies:
Penstemon fruticosus var. albus ined.
Penstemon scouleri Lindl.
Penstemon
gracilis Nutt.
[Scrophulariaceae]
Synonymies:
Penstemon glaucus Graham
Penstemon
hirsutus (L.) Willd.
[Scrophulariaceae]
Synonymies:
Chelone hirsuta L.
Penstemon
nitidus Douglas ex Benth.
[Scrophulariaceae]
Penstemon
procerus Douglas ex Graham
[Scrophulariaceae]
Penstemon
procerus var. procerus
[Scrophulariaceae]
Penstemon
serrulatus Menzies ex Sm.
[Scrophulariaceae]
Perideridia
gairdneri (Hook. & Arn.)
Mathias [Apiaceae]
Synonymies:
Atenia gairdneri Hook. & Arn.
Carum gairdneri (Hook. & Arn.) A. Gray
Phacelia
heterophylla Pursh
[Hydrophyllaceae]
Phalaris
arundinacea L.
[Poaceae]
Synonymies:
Phalaris arundinacea f. variegata (Parn.) Druce
Phlox
divaricata L.
[Polemoniaceae]
Phlox
pilosa L.
[Polemoniaceae]
Phlox
subulata L.
[Polemoniaceae]
Phyllodoce
aleutica (Spreng.) A. Heller
[Ericaceae]
Synonymies:
Menziesia aleutica Spreng.
Phyllodoce
caerulea (L.) Bab.
[Ericaceae]
Synonymies:
Andromeda caerulea L.
Phyllodoce
empetriformis (Sm.) D. Don
[Ericaceae]
Physalis
grisea (Waterf.) M.
Martínez [Solanaceae]
Synonymies:
Physalis pruinosa auct.
Physalis pubescens var. grisea Waterf.
Physalis
heterophylla Nees
[Solanaceae]
Physalis
longifolia Nutt.
[Solanaceae]
Physalis
longifolia var.
subglabrata (Mack. &
Bush) Cronquist [Solanaceae]
Synonymies:
Physalis subglabrata Mack. & Bush
Physalis
virginiana Mill.
[Solanaceae]
Physaria
didymocarpa (Hook.) A. Gray
[Brassicaceae]
Physaria
didymocarpa var.
didymocarpa
[Brassicaceae]
Synonymies:
Vesicaria didymocarpa Hook.
Physocarpus
capitatus (Pursh) Kuntze
[Rosaceae]
Synonymies:
Spiraea capitata Pursh
Physocarpus
opulifolius (L.) Maxim.
[Rosaceae]
Synonymies:
Physocarpus opulifolius f. nanus (G. Kirchn.) Zabel
Physocarpus stellatus (Rydb. ex Small) Rehder
Physostegia
parviflora Nutt. ex A. Gray
[Lamiaceae]
Synonymies:
Dracocephalum nuttallii Britton
Physostegia
virginiana (L.) Benth.
[Lamiaceae]
Synonymies:
Dracocephalum virginianum L.
Phytolacca
americana L.
[Phytolaccaceae]
Synonymies:
Phytolacca decandra L.
Picea
engelmannii Parry ex Engelm.
[Pinaceae]
Picea
glauca (Moench) Voss
[Pinaceae]
Synonymies:
Abies canadensis Mill.
Picea canadensis (Mill.) Britton et al., nom. illeg.
Picea glauca f. aurea (J. Nelson) Rehder
Picea glauca var. conica Rehder
Pinus glauca Moench
Pinus laxa Ehrh.
Picea
mariana (Mill.) Britton et al.
[Pinaceae]
Synonymies:
Abies mariana Mill.
Picea
rubens Sarg.
[Pinaceae]
Synonymies:
Pinus abies var. acutissima Münchh.
Picea
sitchensis (Bong.)
Carrière [Pinaceae]
Pinus
albicaulis Engelm.
[Pinaceae]
Pinus
banksiana Lamb.
[Pinaceae]
Pinus
contorta Douglas ex Loudon
[Pinaceae]
Pinus
contorta var. contorta
[Pinaceae]
Pinus
contorta var. latifolia
Engelm. [Pinaceae]
Synonymies:
Pinus contorta subsp. latifolia (Engelm.) Critchf.
Pinus
flexilis E. James
[Pinaceae]
Pinus
monticola Douglas ex D. Don
[Pinaceae]
Pinus
ponderosa Douglas ex Lawson
& C. Lawson [Pinaceae]
Pinus
ponderosa var. ponderosa
[Pinaceae]
Pinus
ponderosa var.
scopulorum Engelm.
[Pinaceae]
Pinus
resinosa Aiton
[Pinaceae]
Pinus
rigida Mill.
[Pinaceae]
Pinus
strobus L.
[Pinaceae]
Synonymies:
Pinus strobus f. prostrata (Rehder ex Beissner) Fernald & Weath.
Piptatherum
micranthum (Trin. & Rupr.)
Barkworth [Poaceae]
Synonymies:
Oryzopsis micrantha (Trin. & Rupr.) Thurb.
Urachne micrantha Trin. & Rupr.
Piptatherum
racemosum (Sm.) Barkworth
[Poaceae]
Synonymies:
Milium racemosum Sm.
Oryzopsis racemosa (Sm.) Ricker ex Hitchc.
Plagiobothrys
figuratus (Piper) I. M. Johnst.
ex M. Peck [Boraginaceae]
Synonymies:
Allocarya figurata Piper
Plagiobothrys
figuratus subsp.
figuratus
[Boraginaceae]
Plantago
cordata Lam.
[Plantaginaceae]
Plantago
rugelii Decne.
[Plantaginaceae]
Platanthera
leucophaea (Nutt.) Lindl.
[Orchidaceae]
Synonymies:
Orchis leucophaea Nutt.
Platanus
occidentalis L.
[Platanaceae]
Poa
alpina L.
[Poaceae]
Poa
arctica R. Br.
[Poaceae]
Poa
arctica subsp. arctica
[Poaceae]
Poa
arctica subsp. lanata
(Scribn. & Merr.) Soreng [Poaceae]
Synonymies:
Poa lanata Scribn. & Merr.
Poa
confinis Vasey
[Poaceae]
Poa
cusickii Vasey
[Poaceae]
Poa
cusickii subsp. epilis
(Scribn.) W. A. Weber [Poaceae]
Synonymies:
Poa epilis Scribn.
Poa
fendleriana (Steud.) Vasey
[Poaceae]
Synonymies:
Eragrostis fendleriana Steud.
Poa
fendleriana subsp.
fendleriana
[Poaceae]
Poa
fendleriana subsp.
longiligula (Scribn. &
T. A. Williams) Soreng [Poaceae]
Synonymies:
Poa fendleriana var. longiligula (Scribn. & T. A. Williams) Gould
Poa longiligula Scribn. & T. A. Williams
Poa
glauca Vahl
[Poaceae]
Synonymies:
Poa balfourii Parn.
Poa caesia Sm.
Poa glauca var. glaucanthos (Gaudin) Lindm.
Poa glaucanthos Gaudin
Poa
glauca subsp. glauca
[Poaceae]
Poa
languida Hitchc.
[Poaceae]
Poa
nervosa (Hook.) Vasey
[Poaceae]
Synonymies:
Festuca nervosa Hook.
Poa
palustris L.
[Poaceae]
Synonymies:
Poa fertilis Host
Poa serotina Ehrh.
Poa triflora Gilib.
Poa
pratensis L.
[Poaceae]
Poa
pratensis subsp.
angustifolia (L.) Lej.
[Poaceae]
Synonymies:
Poa angustifolia L.
Poa
pratensis subsp.
pratensis
[Poaceae]
Poa
secunda J. Presl
[Poaceae]
Synonymies:
Glyceria canbyi Scribn.
Poa ampla Merr.
Poa canbyi (Scribn.) Howell
Poa juncifolia Scribn.
Poa nevadensis Vasey ex Scribn.
Poa sandbergii Vasey
Poa scabrella (Thurb.) Benth. ex Vasey
Poa
wheeleri Vasey
[Poaceae]
Podophyllum
peltatum L.
[Berberidaceae]
Polanisia
dodecandra subsp.
trachysperma (Torr. & A.
Gray) Iltis [Capparaceae]
Synonymies:
Polanisia trachysperma Torr. & A. Gray
Polemonium
acutiflorum Willd.
[Polemoniaceae]
Polygala
paucifolia Willd.
[Polygalaceae]
Polygala
sanguinea L.
[Polygalaceae]
Polygala
senega L.
[Polygalaceae]
Polygonatum
biflorum (Walter) Elliott
[Liliaceae]
Polygonum
amphibium L.
[Polygonaceae]
Synonymies:
Persicaria amphibia (L.) Gray
Polygonum
erectum L.
[Polygonaceae]
Polygonum
hydropiperoides Michx.
[Polygonaceae]
Synonymies:
Persicaria hydropiperoides (Michx.) Small
Polygonum
pensylvanicum L.
[Polygonaceae]
Synonymies:
Persicaria pensylvanica (L.) M. Gómez
Polygonum
punctatum Elliott
[Polygonaceae]
Synonymies:
Persicaria punctata (Elliott) Small
Polygonum acre Kunth, nom. illeg.
Polygonum
sagittatum L.
[Polygonaceae]
Polypodium
appalachianum Haufler &
Windham [Polypodiaceae]
Polypodium
glycyrrhiza D. C. Eaton
[Polypodiaceae]
Polypodium
sibiricum Sipliv.
[Polypodiaceae]
Polypodium
virginianum L.
[Polypodiaceae]
Polystichum
acrostichoides (Michx.) Schott
[Dryopteridaceae]
Polystichum
braunii (Spenn.) Fée
[Dryopteridaceae]
Polystichum
munitum (Kaulf.) C. Presl
[Dryopteridaceae]
Synonymies:
Aspidium munitum Kaulf.
Pontederia
cordata var. cordata
[Pontederiaceae]
Synonymies:
Pontederia cordata var. lancifolia (Muhl.) Torr.
Pontederia lanceolata Nutt.
Pontederia lancifolia Muhl.
Populus
balsamifera subsp.
balsamifera
[Salicaceae]
Synonymies:
Populus candicans Aiton
Populus tacamahacca Mill.
Populus
balsamifera subsp.
trichocarpa (Torr. & A.
Gray) Brayshaw [Salicaceae]
Synonymies:
Populus trichocarpa Torr. & A. Gray
Populus
deltoides subsp.
deltoides
[Salicaceae]
Synonymies:
Populus deltoides var. missouriensis (A. Henry) A. Henry
Populus
deltoides subsp.
monilifera (Aiton) Eckenw.
[Salicaceae]
Synonymies:
Populus deltoides var. occidentalis Rydb.
Populus sargentii Dode
Populus
grandidentata Michx.
[Salicaceae]
Populus
x jackii Sarg.
[Salicaceae]
Synonymies:
Populus candicans auct.
Populus manitobensis Dode
Populus x gileadensis Rouleau
Populus
tremuloides Michx.
[Salicaceae]
Potamogeton
foliosus Raf.
[Potamogetonaceae]
Potamogeton
gramineus L.
[Potamogetonaceae]
Potamogeton
illinoensis Morong
[Potamogetonaceae]
Potamogeton
natans L.
[Potamogetonaceae]
Potamogeton
richardsonii (A. Benn.) Rydb.
[Potamogetonaceae]
Potentilla
anserina L.
[Rosaceae]
Potentilla
anserina subsp. anserina
[Rosaceae]
Potentilla
anserina subsp. egedii
(Wormsk.) Hiitonen [Rosaceae]
Synonymies:
Potentilla egedii Wormsk. ex Hornem.
Potentilla
anserina subsp. pacifica
(Howell) Rousi [Rosaceae]
Synonymies:
Potentilla pacifica Howell
Potentilla
arguta Pursh
[Rosaceae]
Potentilla
canadensis L.
[Rosaceae]
Potentilla
diversifolia Lehm.
[Rosaceae]
Potentilla
fruticosa L.
[Rosaceae]
Synonymies:
Dasiphora fruticosa (L.) Rydb.
Pentaphylloides fruticosa (L.) O. Schwarz
Potentilla fruticosa var. farreri Besant
Potentilla fruticosa var. pyrenaica Willd. ex Schltdl.
Potentilla
gracilis Douglas ex Hook.
[Rosaceae]
Potentilla
gracilis var.
flabelliformis (Lehm.) Nutt.
ex Torr. & A. Gray [Rosaceae]
Synonymies:
Potentilla flabelliformis Lehm.
Potentilla
multifida L.
[Rosaceae]
Synonymies:
Potentilla ornithopoda Tausch
Potentilla
norvegica L.
[Rosaceae]
Synonymies:
Potentilla monspeliensis L.
Potentilla norvegica subsp. monspeliensis (L.) Asch. & Graebn.
Potentilla
paradoxa Nutt.
[Rosaceae]
Potentilla
pensylvanica L.
[Rosaceae]
Synonymies:
Potentilla sibirica Th. Wolf
Potentilla strigosa auct.
Potentilla
simplex Michx.
[Rosaceae]
Prenanthes
alba L.
[Asteraceae]
Synonymies:
Prenanthes alba subsp. pallida Milstead, nom. invalidum
Prenanthes
trifoliolata (Cass.) Fernald
[Asteraceae]
Synonymies:
Nabalus trifoliatus Cass.
Prunella
vulgaris L.
[Lamiaceae]
Prunus
americana Marshall
[Rosaceae]
Prunus
emarginata (Douglas ex Hook.)
Eaton [Rosaceae]
Prunus
maritima Marshall
[Rosaceae]
Prunus
nigra Aiton
[Rosaceae]
Synonymies:
Prunus americana var. lanata Sudw.
Prunus americana var. mollis (Torr.) Torr. & A. Gray
Prunus
pensylvanica L. f.
[Rosaceae]
Synonymies:
Cerasus pensylvanica (L. f.) Loisel.
Prunus
pumila L.
[Rosaceae]
Prunus
pumila var. depressa
(Pursh) Bean [Rosaceae]
Synonymies:
Prunus depressa Pursh
Prunus
serotina Ehrh.
[Rosaceae]
Prunus
serotina subsp. serotina
[Rosaceae]
Prunus
virginiana L.
[Rosaceae]
Pseudoroegneria
spicata (Pursh) Á.
Löve [Poaceae]
Synonymies:
Agropyron divergens var. inerme Scribn. & J. G. Sm.
Agropyron inerme (Scribn. & J. G. Sm.) Rydb.
Agropyron spicatum (Pursh) Scribn. & J. G. Sm.
Agropyron spicatum f. inerme (Scribn. & J. G. Sm.) Beetle
Agropyron spicatum var. inerme (Scribn. & J. G. Sm.) A. Heller
Elymus spicatus (Pursh) Gould
Elytrigia spicata (Pursh) D. R. Dewey
Festuca spicata Pursh
Pseudoroegneria spicata subsp. inermis (Scribn. & J. G. Sm.) Á. Löve
Pseudotsuga
menziesii (Mirb.) Franco
[Pinaceae]
Pseudotsuga
menziesii var. glauca
(Beissner) Franco [Pinaceae]
Synonymies:
Pseudotsuga menziesii var. caesia (Schwer.) Franco
Pseudotsuga taxifolia var. caesia (Schwer.) Asch. & Graebn.
Pseudotsuga taxifolia var. glauca (Beissner) Sudw.
Pseudotsuga
menziesii var. menziesii
[Pinaceae]
Synonymies:
Abies menziesii Mirb.
Abies mucronata Raf.
Abies taxifolia Poir., nom. illeg.
Pinus douglasii Sabine ex D. Don
Pinus taxifolia Lamb., nom. illeg.
Pseudotsuga douglasii (Sabine ex D. Don) Carrière
Pseudotsuga mucronata (Raf.) Sudw.
Pseudotsuga taxifolia Britton
Psoralidium
lanceolatum (Pursh) Rydb.
[Fabaceae]
Synonymies:
Psoralea lanceolata Pursh
Puccinellia
agrostidea T. J.
Sørensen [Poaceae]
Synonymies:
Phippsia agrostidea (T. J. Sørensen) Á. Löve & D. Löve
Puccinellia
andersonii Swallen
[Poaceae]
Synonymies:
Phippsia andersonii (Swallen) Á. Löve & D. Löve
Puccinellia
arctica (Hook.) Fernald &
Weath. [Poaceae]
Synonymies:
Glyceria arctica Hook.
Puccinellia
nuttalliana (Schult.) Hitchc.
[Poaceae]
Synonymies:
Poa nuttalliana Schult.
Puccinellia airoides S. Watson & J. M. Coult.
Puccinellia
tenella (Lange) Holmb. ex
Porsild [Poaceae]
Synonymies:
Glyceria tenella Lange
Puccinellia
tenella subsp. langeana
(Berlin) Tzvelev [Poaceae]
Synonymies:
Glyceria langeana Berlin
Puccinellia langeana (Berlin) T. J. Sørensen
Purshia
tridentata (Pursh) DC.
[Rosaceae]
Synonymies:
Tigarea tridentata Pursh
Pycnanthemum
pilosum Nutt.
[Lamiaceae]
Pycnanthemum
tenuifolium Schrad.
[Lamiaceae]
Pycnanthemum
verticillatum (Michx.) Pers.
[Lamiaceae]
Synonymies:
Brachystemum verticillatum Michx.
Pycnanthemum
virginianum (L.) T. Durand
& B. D. Jacks. ex B. L. Rob. & Fernald
[Lamiaceae]
Synonymies:
Satureja virginiana L.
Pyrrocoma
lanceolata (Hook.) Greene
[Asteraceae]
Synonymies:
Donia lanceolata Hook.
Haplopappus lanceolatus (Hook.) Torr. & A. Gray
Pyrrocoma
uniflora (Hook.) Greene
[Asteraceae]
Synonymies:
Donia uniflora Hook.
Haplopappus uniflorus (Hook.) Torr. & A. Gray
Quercus
alba L.
[Fagaceae]
Quercus
bicolor Willd.
[Fagaceae]
Quercus
ellipsoidalis E. J. Hill
[Fagaceae]
Quercus
garryana Douglas ex Hook.
[Fagaceae]
Quercus
ilicifolia Wangenh.
[Fagaceae]
Quercus
macrocarpa Michx.
[Fagaceae]
Quercus
muehlenbergii Engelm.
[Fagaceae]
Quercus
palustris Münchh.
[Fagaceae]
Quercus
prinoides Willd.
[Fagaceae]
Quercus
rubra L.
[Fagaceae]
Synonymies:
Quercus borealis F. Michx.
Quercus borealis var. maxima (Marshall) Sarg.
Quercus rubra var. borealis (F. Michx.) Farw.
Quercus
shumardii Buckley
[Fagaceae]
Quercus
velutina Lam.
[Fagaceae]
Ranunculus
abortivus L.
[Ranunculaceae]
Ranunculus
cymbalaria Pursh
[Ranunculaceae]
Synonymies:
Halerpestes cymbalaria (Pursh) Greene
Halerpestes salsuginosa (Georgi) Greene
Ranunculus salsuginosa Georgi
Ranunculus
flammula L.
[Ranunculaceae]
Ranunculus
sceleratus L.
[Ranunculaceae]
Rhexia
virginica L.
[Melastomataceae]
Rhodiola
rosea subsp.
integrifolium (Raf.) Hara
[Crassulaceae]
Synonymies:
Rhodiola atropurpurea (Turcz.) Trautv. & C. A. Mey.
Sedum integrifolium subsp. leedyi (Rosend. & J. W. Moore) R. T. Clausen
Sedum rosea var. leedyi Rosend. & J. W. Moore
Rhodiola
rosea subsp. rosea
[Crassulaceae]
Rhododendron
albiflorum Hook.
[Ericaceae]
Rhododendron
canadense (L.) Torr.
[Ericaceae]
Synonymies:
Rhodora canadensis L.
Rhododendron
macrophyllum D. Don ex G. Don
[Ericaceae]
Synonymies:
Rhododendron californicum Hook.
Rhododendron
maximum L.
[Ericaceae]
Rhus
aromatica Aiton
[Anacardiaceae]
Synonymies:
Rhus canadensis Marshall, nom. illeg.
Rhus
copallinum L.
[Anacardiaceae]
Synonymies:
Rhus copallinum var. latifolia Engl.
Rhus
glabra L.
[Anacardiaceae]
Synonymies:
Rhus cismontana Greene
Rhus glabra var. cismontana (Greene) Cockerell
Rhus
trilobata Nutt. ex Torr. &
A. Gray [Anacardiaceae]
Rhus
typhina L.
[Anacardiaceae]
Synonymies:
Datisca hirta L.
Rhus hirta (L.) Sudw.
Ribes
americanum Mill.
[Grossulariaceae]
Ribes
aureum Pursh
[Grossulariaceae]
Synonymies:
Ribes flavum Berland.
Ribes tenuiflorum Lindl.
Ribes
aureum var. aureum
[Grossulariaceae]
Ribes
bracteosum Douglas ex Hook.
[Grossulariaceae]
Ribes
cereum Douglas
[Grossulariaceae]
Ribes
cereum var. cereum
[Grossulariaceae]
Ribes
cynosbati L.
[Grossulariaceae]
Synonymies:
Ribes gracile Michx.
Ribes
divaricatum Douglas
[Grossulariaceae]
Ribes
glandulosum Grauer
[Grossulariaceae]
Synonymies:
Ribes prostratum L'Hér.
Ribes
hirtellum Michx.
[Grossulariaceae]
Ribes
howellii Greene
[Grossulariaceae]
Ribes
hudsonianum Richardson
[Grossulariaceae]
Ribes
hudsonianum var.
hudsonianum
[Grossulariaceae]
Ribes
hudsonianum var.
petiolare (Douglas) Jancz.
[Grossulariaceae]
Synonymies:
Ribes petiolare Douglas
Ribes
inerme Rydb.
[Grossulariaceae]
Ribes
lacustre (Pers.) Poir.
[Grossulariaceae]
Synonymies:
Ribes grossularioides Michx. ex Steud.
Ribes
laxiflorum Pursh
[Grossulariaceae]
Synonymies:
Ribes affine Douglas ex Bong., nom. illeg.
Ribes coloradense Coville
Ribes
lobbii A. Gray
[Grossulariaceae]
Ribes
montigenum McClatchie
[Grossulariaceae]
Synonymies:
Ribes lacustre var. lentum M. E. Jones
Ribes lentum (M. E. Jones) Coville & Rose
Ribes
oxyacanthoides L.
[Grossulariaceae]
Ribes
sanguineum Pursh
[Grossulariaceae]
Synonymies:
Ribes sanguineum f. atrorubens (Loudon) Rehder
Ribes
sanguineum var.
sanguineum
[Grossulariaceae]
Ribes
triste Pall.
[Grossulariaceae]
Ribes
viscosissimum Pursh
[Grossulariaceae]
Rorippa
palustris (L.) Besser
[Brassicaceae]
Synonymies:
Rorippa islandica auct.
Rosa
acicularis subsp. sayi
(Schwein.) W. H. Lewis [Rosaceae]
Synonymies:
Rosa acicularis var. bourgeauiana Crepin
Rosa acicularis var. engelmannii (S. Watson) Crepin ex Rehder
Rosa acicularis var. sayiana Erlanson
Rosa
arkansana Porter
[Rosaceae]
Synonymies:
Rosa heliophila var. alba (Rehder) Rehder
Rosa
gymnocarpa Nutt.
[Rosaceae]
Rosa
nutkana C. Presl
[Rosaceae]
Synonymies:
Rosa muriculata Greene
Rosa
nutkana var. nutkana
[Rosaceae]
Rosa
pisocarpa A. Gray
[Rosaceae]
Rosa
setigera Michx.
[Rosaceae]
Rosa
woodsii Lindl.
[Rosaceae]
Rosa
woodsii var. fendleri
(Crepin) Rydb. [Rosaceae]
Synonymies:
Rosa fendleri Crepin
Rosa
woodsii var.
ultramontana (S. Watson)
Jeps. [Rosaceae]
Synonymies:
Rosa gratissima Greene
Rosa woodsii var. gratissima (Greene) D. Cole
Rosa
woodsii var. woodsii
[Rosaceae]
Rubus
allegheniensis Porter
[Rosaceae]
Synonymies:
Rubus amnicola Blanch.
Rubus avipes L. H. Bailey
Rubus nigrobaccus L. H. Bailey
Rubus pergratus Blanch.
Rubus
arcticus L.
[Rosaceae]
Rubus
arcticus subsp. acaulis
(Michx.) Focke [Rosaceae]
Synonymies:
Rubus acaulis Michx.
Rubus
arcticus subsp. arcticus
[Rosaceae]
Rubus
arcticus subsp.
stellatus (Sm.) B. Boivin
[Rosaceae]
Synonymies:
Rubus stellatus Sm.
Rubus
arundelanus Blanch.
[Rosaceae]
Rubus
biformispinus Blanch.
[Rosaceae]
Rubus
canadensis L.
[Rosaceae]
Synonymies:
Rubus millspaughii Britton
Rubus
chamaemorus L.
[Rosaceae]
Rubus
flagellaris Willd.
[Rosaceae]
Synonymies:
Rubus geophilus Blanch.
Rubus
frondosus Bigelow
[Rosaceae]
Synonymies:
Rubus villosus var. frondosus (Bigelow) Torr.
Rubus
glandicaulis Blanch.
[Rosaceae]
Rubus
hispidus L.
[Rosaceae]
Rubus
kennedyanus Fernald
[Rosaceae]
Synonymies:
Rubus acridens L. H. Bailey
Rubus
lasiococcus A. Gray
[Rosaceae]
Rubus
leucodermis Douglas ex Torr.
& A. Gray [Rosaceae]
Rubus
nivalis Douglas ex Hook.
[Rosaceae]
Rubus
occidentalis L.
[Rosaceae]
Rubus
odoratus L.
[Rosaceae]
Rubus
parviflorus Nutt.
[Rosaceae]
Synonymies:
Rubus nutkanus Moc. ex Ser.
Rubus
pedatus Sm.
[Rosaceae]
Rubus
pennus L. H. Bailey
[Rosaceae]
Synonymies:
Rubus cardianus L. H. Bailey
Rubus
pensilvanicus Poir.
[Rosaceae]
Rubus
pubescens Raf.
[Rosaceae]
Synonymies:
Rubus triflorus Richardson
Rubus
recurvans Blanch.
[Rosaceae]
Rubus
setosus Bigelow
[Rosaceae]
Rubus
spectabilis Pursh
[Rosaceae]
Rubus
strigosus Michx.
[Rosaceae]
Synonymies:
Rubus idaeus var. peramoenus (Greene) Fernald
Rubus idaeus var. strigosus (Michx.) Maxim.
Rubus
ursinus Cham. & Schltdl.
[Rosaceae]
Synonymies:
Rubus vitifolius Cham. & Schltdl.
Rubus
vermontanus Blanch.
[Rosaceae]
Rudbeckia
laciniata L.
[Asteraceae]
Rumex
maritimus L.
[Polygonaceae]
Rumex
maritimus var.
persicarioides (L.) R. S.
Mitch. [Polygonaceae]
Synonymies:
Rumex persicarioides L.
Rumex
venosus Pursh
[Polygonaceae]
Sagina
nodosa (L.) Fenzl
[Caryophyllaceae]
Synonymies:
Spergula nodosa L.
Sagittaria
brevirostra Mack. & Bush
[Alismataceae]
Synonymies:
Sagittaria engelmanniana subsp. brevirostra (Mack. & Bush) Bogin
Sagittaria
engelmanniana J. G. Sm.
[Alismataceae]
Sagittaria
graminea Michx.
[Alismataceae]
Sagittaria
graminea subsp. graminea
[Alismataceae]
Sagittaria
latifolia Willd.
[Alismataceae]
Synonymies:
Sagittaria chinensis Pursh
Salicornia
bigelovii Torr.
[Chenopodiaceae]
Salicornia
virginica L.
[Chenopodiaceae]
Salix
alaxensis (Andersson) Coville
[Salicaceae]
Synonymies:
Salix speciosa var. alaxensis Andersson
Salix
amygdaloides Andersson
[Salicaceae]
Salix
barclayi Andersson
[Salicaceae]
Salix
bebbiana Sarg.
[Salicaceae]
Salix
brachycarpa subsp.
niphoclada (Rydb.) Argus
[Salicaceae]
Synonymies:
Salix niphoclada Rydb.
Salix
candida Flüggé ex
Willd. [Salicaceae]
Salix
cordata Michx.
[Salicaceae]
Salix
discolor Muhl.
[Salicaceae]
Salix
drummondiana Barratt ex Hook.
[Salicaceae]
Salix
eriocephala Michx.
[Salicaceae]
Synonymies:
Salix cordata Muhl., nom. illeg.
Salix cordata d. vestita Andersson
Salix rigida Muhl.
Salix
exigua Nutt.
[Salicaceae]
Salix
exigua subsp. exigua
[Salicaceae]
Synonymies:
Salix hindsiana Benth.
Salix sessilifolia subsp. hindsiana (Benth.) Andersson
Salix
exigua subsp. interior
(Rowlee) Cronquist [Salicaceae]
Synonymies:
Salix interior Rowlee
Salix longifolia Muhl., nom. illeg.
Salix
glauca L.
[Salicaceae]
Synonymies:
Salix villosa D. Don ex Hook.
Salix
hastata L.
[Salicaceae]
Salix
herbacea L.
[Salicaceae]
Salix
hookeriana Barratt ex Hook.
[Salicaceae]
Synonymies:
Salix piperi Bebb
Salix
humilis Marshall
[Salicaceae]
Salix
lucida Muhl.
[Salicaceae]
Salix
lucida subsp. lasiandra
(Benth.) E. Murray [Salicaceae]
Synonymies:
Salix lasiandra Benth.
Salix lasiandra var. lancifolia (Andersson) Bebb
Salix
lutea Nutt.
[Salicaceae]
Salix
melanopsis Nutt.
[Salicaceae]
Salix
myricoides Muhl.
[Salicaceae]
Synonymies:
Salix glaucophylloides Fernald
Salix glaucophylloides var. glaucophylla (Bebb) C. K. Schneid.
Salix
nigra Marshall
[Salicaceae]
Salix
pellita Andersson
[Salicaceae]
Salix
petiolaris Sm.
[Salicaceae]
Salix
phlebophylla Andersson
[Salicaceae]
Salix
planifolia Pursh
[Salicaceae]
Salix
prolixa Andersson
[Salicaceae]
Synonymies:
Salix mackenzieana Barratt ex Andersson
Salix rigida var. mackenzieana (Barratt ex Andersson) Cronquist
Salix
pyrifolia Andersson
[Salicaceae]
Salix
reticulata L.
[Salicaceae]
Salix
reticulata subsp.
nivalis (Hook.) Á.
Löve et al. [Salicaceae]
Synonymies:
Salix saximontana Rydb.
Salix
reticulata subsp.
reticulata
[Salicaceae]
Salix
scouleriana Barratt ex Hook.
[Salicaceae]
Salix
sericea Marshall
[Salicaceae]
Salix
serissima (L. H. Bailey)
Fernald [Salicaceae]
Synonymies:
Salix lucida var. serissima L. H. Bailey
Salix
sitchensis C. A. Sanson
[Salicaceae]
Salix
uva-ursi Pursh
[Salicaceae]
Sambucus
canadensis L.
[Adoxaceae]
Sambucus
canadensis var.
canadensis
[Adoxaceae]
Sambucus
cerulea Raf.
[Adoxaceae]
Synonymies:
Sambucus cerulea var. neomexicana (Wooton) Rehder
Sambucus glauca Nutt.
Sambucus mexicana auct.
Sambucus neomexicana Wooton
Sambucus
racemosa L.
[Adoxaceae]
Synonymies:
Sambucus racemosa var. laciniata W. D. J. Koch ex DC.
Sambucus
racemosa subsp. pubens
(Michx.) House [Adoxaceae]
Synonymies:
Sambucus pubens Michx.
Sambucus pubens f. xanthocarpa (Cockerell) Fernald
Sambucus pubescens Pers.
Sambucus racemosa f. xanthocarpa Cockerell
Sambucus
racemosa var.
arborescens (Torr. & A.
Gray) A. Gray [Adoxaceae]
Synonymies:
Sambucus callicarpa Greene
Sambucus pubens var. arborescens Torr. & A. Gray
Sambucus
racemosa var.
melanocarpa (A. Gray) McMinn
[Adoxaceae]
Synonymies:
Sambucus melanocarpa A. Gray
Sanguinaria
canadensis L.
[Papaveraceae]
Sanguisorba
canadensis L.
[Rosaceae]
Sanguisorba
officinalis L.
[Rosaceae]
Synonymies:
Poterium officinale (L.) A. Gray
Sanguisorba carnea Fisch. ex Link, nom. illeg.
Sanguisorba polygama F. Nyl.
Sanicula
canadensis L.
[Apiaceae]
Sarcobatus
vermiculatus (Hook.) Torr.
[Sarcobataceae]
Synonymies:
Batis vermiculata Hook.
Sarcocornia
perennis (Mill.) A. J. Scott
[Chenopodiaceae]
Synonymies:
Salicornia perennis Mill.
Sarracenia
purpurea L.
[Sarraceniaceae]
Sarracenia
sp. [Sarraceniaceae]
Sassafras
albidum (Nutt.) Nees
[Lauraceae]
Synonymies:
Laurus albida Nutt.
Sassafras officinale Nees & C. H. Eberm.
Sassafras variifolium (Salisb.) Kuntze
Schizachne
purpurascens (Torr.) Swallen
[Poaceae]
Synonymies:
Trisetum purpurascens Torr.
Schizachyrium
scoparium (Michx.) Nash
[Poaceae]
Synonymies:
Andropogon scoparius Michx.
Schoenoplectus
acutus (Muhl. ex Bigelow)
Á. Löve & D. Löve [Cyperaceae]
Synonymies:
Scirpus acutus Muhl. ex Bigelow
Scirpus
cyperinus (L.) Kunth
[Cyperaceae]
Synonymies:
Eriophorum cyperinum L.
Scirpus
longii Fernald
[Cyperaceae]
Scrophularia
lanceolata Pursh
[Scrophulariaceae]
Scrophularia
marilandica L.
[Scrophulariaceae]
Scutellaria
lateriflora L.
[Lamiaceae]
Sedum
spathulifolium Hook.
[Crassulaceae]
Selaginella
selaginoides (L.) Link
[Selaginellaceae]
Synonymies:
Selaginella spinosa P. Beauv., nom. illeg.
Senecio
congestus (R. Br.) DC.
[Asteraceae]
Synonymies:
Senecio tubicaulis Mansf.
Senecio
integerrimus Nutt.
[Asteraceae]
Senecio
plattensis Nutt.
[Asteraceae]
Senecio
pseudoarnica Less.
[Asteraceae]
Senecio
schweinitzianus Nutt.
[Asteraceae]
Synonymies:
Senecio robbinsii Oakes ex Rusby
Senna
hebecarpa (Fernald) H. S. Irwin
& Barneby [Fabaceae]
Synonymies:
Cassia hebecarpa Fernald
Sicyos
angulatus L.
[Cucurbitaceae]
Silene
acaulis (L.) Jacq.
[Caryophyllaceae]
Synonymies:
Cucubalus acaulis L.
Silene
acaulis var. exscapa
(All.) DC. [Caryophyllaceae]
Synonymies:
Silene acaulis subsp. arctica Á. Löve & D. Löve
Silene
acaulis var.
subacaulescens (F. N.
Williams) Fernald & H. St. John [Caryophyllaceae]
Synonymies:
Silene acaulis subsp. subacaulescens (F. N. Williams) Hultén
Silene
antirrhina L.
[Caryophyllaceae]
Silene
uralensis (Rupr.) Bocquet
[Caryophyllaceae]
Synonymies:
Gastrolychnis uralensis Rupr.
Silene
uralensis subsp.
uralensis
[Caryophyllaceae]
Sisyrinchium
californicum (Ker Gawl.)
Dryand. [Iridaceae]
Synonymies:
Hydastilus borealis E. P. Bicknell
Marica californica Ker Gawl.
Sisyrinchium boreale (E. P. Bicknell) J. K. Henry
Sium
suave Walter
[Apiaceae]
Synonymies:
Sium cicutifolium Schrank
Smilacina
racemosa (L.) Desf.
[Liliaceae]
Synonymies:
Convallaria racemosa L.
Vagnera racemosa Morong
Smilacina
stellata Desf.
[Liliaceae]
Smilax
rotundifolia L.
[Smilacaceae]
Solanum
carolinense L.
[Solanaceae]
Solanum
ptycanthum Dunal
[Solanaceae]
Synonymies:
Solanum americanum auct.
Solanum
triflorum Nutt.
[Solanaceae]
Solidago
arguta Aiton
[Asteraceae]
Solidago
bicolor L.
[Asteraceae]
Solidago
canadensis var.
canadensis
[Asteraceae]
Solidago
canadensis var. scabra
(Muhl.) Torr. & A. Gray [Asteraceae]
Synonymies:
Solidago altissima L.
Solidago
gigantea Aiton
[Asteraceae]
Synonymies:
Solidago serotina Aiton
Solidago
houghtonii Torr. & A. Gray
[Asteraceae]
Solidago
missouriensis Nutt.
[Asteraceae]
Synonymies:
Solidago concinna A. Nelson
Solidago
mollis Bartl.
[Asteraceae]
Sorbus
americana Marshall
[Rosaceae]
Sorbus
decora (Sarg.) C. K. Schneid.
[Rosaceae]
Synonymies:
Pyrus americana DC.
Sorbus
scopulina Greene
[Rosaceae]
Sorbus
scopulina var.
cascadensis (G. N. Jones) C.
L. Hitchc. [Rosaceae]
Synonymies:
Sorbus cascadensis G. N. Jones
Sorbus
sitchensis M. Roem.
[Rosaceae]
Sorbus
sitchensis var. grayi
(Wenz.) C. L. Hitchc. [Rosaceae]
Sorghastrum
nutans (L.) Nash
[Poaceae]
Synonymies:
Andropogon avenaceus Michx.
Andropogon nutans var. avenaceus (Michx.) Hack.
Chrysopogon avenaceus (Michx.) Benth.
Sorghastrum avenaceum (Michx.) Nash
Sparganium
eurycarpum Engelm.
[Sparganiaceae]
Synonymies:
Sparganium ramosum subsp. stoloniferum Graebn.
Sparganium stoloniferum (Graebn.) Buch.-Ham. ex Juz.
Spartina
alterniflora Loisel.
[Poaceae]
Spartina
gracilis Trin.
[Poaceae]
Spartina
patens (Aiton) H. L. Mühl.
[Poaceae]
Spartina
pectinata Link
[Poaceae]
Spergularia
marina (L.) Griseb.
[Caryophyllaceae]
Synonymies:
Arenaria rubra var. marina L.
Spergularia salina J. Presl & C. Presl
Sphaeralcea
coccinea (Nutt.) Rydb.
[Malvaceae]
Synonymies:
Cristaria coccinea (Nutt.) Pursh, nom. illeg.
Malva coccinea Nutt.
Sphaeralcea
munroana (Douglas ex Lindl.)
Spach ex A. Gray [Malvaceae]
Synonymies:
Malva munroana Douglas ex Lindl.
Spiraea
alba Du Roi
[Rosaceae]
Spiraea
alba var. latifolia
(Aiton) Dippel [Rosaceae]
Synonymies:
Spiraea latifolia (Aiton) Borkh.
Spiraea
betulifolia Pall.
[Rosaceae]
Spiraea
betulifolia var.
aemiliana (C. K. Schneid.)
Koidz. [Rosaceae]
Synonymies:
Spiraea aemiliana C. K. Schneid.
Spiraea
douglasii Hook.
[Rosaceae]
Spiranthes
romanzoffiana Cham.
[Orchidaceae]
Spirodela
polyrhiza (L.) Schleid.
[Lemnaceae]
Sporobolus
compositus (Poir.) Merr.
[Poaceae]
Synonymies:
Agrostis aspera Michx., nom. illeg.
Sporobolus asper Kunth
Sporobolus
cryptandrus (Torr.) A. Gray
[Poaceae]
Synonymies:
Vilfa cryptandra Trin.
Sporobolus
heterolepis (A. Gray) A. Gray
[Poaceae]
Sporobolus
neglectus Nash
[Poaceae]
Sporobolus
vaginiflorus (Torr. ex A. Gray)
A. W. Wood [Poaceae]
Synonymies:
Vilfa vaginiflora Torr. ex A. Gray
Stachys
palustris L.
[Lamiaceae]
Stachys
tenuifolia Willd.
[Lamiaceae]
Staphylea
trifolia f. pyriformis Dore
[Staphyleaceae]
Stellaria
longipes Goldie
[Caryophyllaceae]
Synonymies:
Stellaria edwardsii R. Br.
Strophostyles
helvula (L.) Elliott
[Fabaceae]
Synonymies:
Phaseolus helvulus L.
Subularia
aquatica L.
[Brassicaceae]
Subularia
aquatica var. americana
(G. A. Mulligan & Calder) B. Boivin [Brassicaceae]
Swertia
caroliniensis (Walter) Kuntze
[Gentianaceae]
Synonymies:
Frasera caroliniensis Walter
Symphoricarpos
albus (L.) S. F. Blake
[Caprifoliaceae]
Synonymies:
Symphoricarpos racemosus Michx.
Symphoricarpos
albus var. albus
[Caprifoliaceae]
Symphoricarpos
albus var. laevigatus
(Fernald) S. F. Blake [Caprifoliaceae]
Synonymies:
Symphoricarpos rivularis Suksd.
Symphoricarpos
occidentalis Hook.
[Caprifoliaceae]
Symphoricarpos
oreophilus A. Gray
[Caprifoliaceae]
Symplocarpus
foetidus (L.) Salisb. ex W. P.
C. Barton [Araceae]
Synonymies:
Dracontium foetidus L.
Tanacetum
camphoratum Less.
[Asteraceae]
Synonymies:
Tanacetum douglasii DC.
Tanacetum
huronense Nutt.
[Asteraceae]
Synonymies:
Tanacetum pauciflorum Richardson
Taraxacum
ceratophorum (Ledeb.) DC.
[Asteraceae]
Synonymies:
Leontodon ceratophorus Ledeb.
Taraxacum lacerum Greene
Taxus
brevifolia Nutt.
[Taxaceae]
Taxus
canadensis Marshall
[Taxaceae]
Tephrosia
virginiana (L.) Pers.
[Fabaceae]
Synonymies:
Cracca virginiana L.
Tetradymia
canescens DC.
[Asteraceae]
Tetraneuris
herbacea Greene
[Asteraceae]
Synonymies:
Actinella glabra Nutt.
Hymenoxys acaulis var. glabra (Nutt.) K. L. Parker
Hymenoxys herbacea (Greene) Cronquist
Teucrium
canadense L.
[Lamiaceae]
Thalictrum
alpinum L.
[Ranunculaceae]
Thalictrum
dasycarpum Fisch. et al.
[Ranunculaceae]
Thalictrum
dioicum L.
[Ranunculaceae]
Thalictrum
pubescens Pursh
[Ranunculaceae]
Synonymies:
Thalictrum polygamum Muhl.
Thalictrum
revolutum DC.
[Ranunculaceae]
Thelypteris
noveboracensis (L.) Nieuwl.
[Thelypteridaceae]
Synonymies:
Nephrodium thelypterioides Michx.
Thelypteris thelypterioides (Michx.) Holub
Thelypteris
palustris Schott
[Thelypteridaceae]
Synonymies:
Acrostichum thelypteris L.
Dryopteris thelypteris (L.) A. Gray
Thermopsis
rhombifolia (Nutt. ex Pursh)
Richardson [Fabaceae]
Synonymies:
Cytisus rhombifolius Nutt. ex Pursh
Thuja
occidentalis L.
[Cupressaceae]
Synonymies:
Thuja occidentalis f. fastigiata (H. Jaeger) Beissner
Thuja occidentalis f. malonyana C. K. Schneid.
Thuja occidentalis var. fastigiata H. Jaeger
Thuja occidentalis var. nigra L. H. Bailey
Thuja
plicata Donn ex D. Don
[Cupressaceae]
Tilia
americana L.
[Tiliaceae]
Tilia
americana var. americana
[Tiliaceae]
Synonymies:
Tilia glabra Vent.
Torreyochloa
pallida (Torr.) G. L. Church
[Poaceae]
Synonymies:
Glyceria pallida (Torr.) Trin.
Puccinellia pallida (Torr.) R. T. Clausen
Windsoria pallida Torr.
Torreyochloa
pallida var. fernaldii
(Hitchc.) Dore [Poaceae]
Synonymies:
Glyceria fernaldii (Hitchc.) H. St. John
Glyceria pallida var. fernaldii Hitchc.
Puccinellia fernaldii (Hitchc.) E. G. Voss
Torreyochloa fernaldii (Hitchc.) G. L. Church
Torreyochloa
pallida var. pallida
[Poaceae]
Torreyochloa
pallida var. pauciflora
(J. Presl) J. I. Davis [Poaceae]
Synonymies:
Glyceria pauciflora J. Presl
Puccinellia pauciflora (J. Presl) Munz
Torreyochloa pauciflora (J. Presl) G. L. Church
Townsendia
exscapa (Richardson) Porter
[Asteraceae]
Synonymies:
Aster exscapus Richardson
Toxicodendron
diversilobum (Torr. & A.
Gray) Greene [Anacardiaceae]
Synonymies:
Rhus diversiloba Torr. & A. Gray
Toxicodendron
radicans (L.) Kuntze
[Anacardiaceae]
Synonymies:
Rhus radicans L.
Toxicodendron
radicans subsp. radicans
[Anacardiaceae]
Synonymies:
Rhus littoralis Mearns
Rhus radicans var. littoralis (Mearns) Deam
Toxicodendron
rydbergii (Small ex Rydb.)
Greene [Anacardiaceae]
Synonymies:
Rhus radicans var. rydbergii (Small ex Rydb.) Rehder
Rhus rydbergii Small ex Rydb.
Toxicodendron
vernix (L.) Kuntze
[Anacardiaceae]
Synonymies:
Rhus vernicifera Salisb.
Rhus vernix L.
Trifolium
cyathiferum Lindl.
[Fabaceae]
Trifolium
dichotomum Hook. & Arn.
[Fabaceae]
Trifolium
microcephalum Pursh
[Fabaceae]
Trifolium
microdon Hook. & Arn.
[Fabaceae]
Trifolium
oliganthum Steud.
[Fabaceae]
Synonymies:
Trifolium pauciflorum Nutt., nom. illeg.
Trifolium
variegatum Nutt.
[Fabaceae]
Synonymies:
Trifolium appendiculatum Lojac.
Trifolium melananthum Hook. & Arn.
Trifolium variegatum var. melananthum (Hook. & Arn.) Greene
Trifolium
willdenovii Spreng.
[Fabaceae]
Synonymies:
Trifolium aciculare Nutt.
Trifolium tridentatum Lindl.
Trifolium tridentatum var. aciculare (Nutt.) McDermott
Trifolium watsonii Lojac.
Trifolium
wormskioldii Lehm.
[Fabaceae]
Synonymies:
Trifolium fendleri Greene
Trifolium fimbriatum Lindl.
Triglochin
maritima L.
[Juncaginaceae]
Triglochin
palustris L.
[Juncaginaceae]
Trillium
erectum L.
[Liliaceae]
Trillium
grandiflorum (Michx.) Salisb.
[Liliaceae]
Synonymies:
Trillium rhomboideum var. grandiflorum Michx.
Trisetum
canescens Buckley
[Poaceae]
Trisetum
cernuum Trin.
[Poaceae]
Trisetum
sibiricum Rupr.
[Poaceae]
Trisetum
sibiricum subsp.
litorale Rupr. ex Roshev.
[Poaceae]
Trisetum
spicatum (L.) K. Richt.
[Poaceae]
Synonymies:
Aira spicata L.
Melica triflora Bigelow
Trisetum molle Kunth
Trisetum triflorum (Bigelow) Á. Löve & D. Löve
Triteleia
hyacinthina (Lindl.) Greene
[Liliaceae]
Synonymies:
Brodiaea lactea (Lindl.) S. Watson
Hesperoscordum hyacinthinum Lindl.
Tsuga
canadensis (L.) Carrière
[Pinaceae]
Synonymies:
Picea canadensis (L.) Link
Tsuga
heterophylla (Raf.) Sarg.
[Pinaceae]
Synonymies:
Abies albertiana A. Murray bis
Abies heterophylla Raf.
Tsuga
mertensiana (Bong.)
Carrière [Pinaceae]
Synonymies:
Abies hookeriana A. Murray bis
Abies mertensiana (Bong.) Lindl. & Gordon
Abies pattoniana A. Murray bis
Pinus mertensiana Bong.
Tsuga pattoniana (J. Jeffrey ex A. Murray bis) Engelm.
Typha
angustifolia L.
[Typhaceae]
Typha
latifolia L.
[Typhaceae]
Ulmus
americana L.
[Ulmaceae]
Ulmus
rubra Muhl.
[Ulmaceae]
Synonymies:
Ulmus fulva Michx.
Ulmus
thomasii Sarg.
[Ulmaceae]
Synonymies:
Ulmus racemosa D. Thomas, nom. illeg.
Uvularia
grandiflora Sm.
[Liliaceae]
Uvularia
perfoliata L., nom. cons.
[Liliaceae]
Vaccinium
alaskaense Howell
[Ericaceae]
Vaccinium
angustifolium Aiton
[Ericaceae]
Synonymies:
Vaccinium angustifolium var. hypolasium Fernald
Vaccinium angustifolium var. laevifolium House
Vaccinium angustifolium var. nigrum (A. W. Wood) Dole
Vaccinium brittonii Porter ex C. Bicknell
Vaccinium lamarckii Camp
Vaccinium pensylvanicum Lam., nom. illeg.
Vaccinium pensylvanicum var. nigrum A. W. Wood
Vaccinium
boreale I. V. Hall &
Aalders [Ericaceae]
Vaccinium
cespitosum Michx.
[Ericaceae]
Vaccinium
corymbosum L.
[Ericaceae]
Synonymies:
Vaccinium constablaei A. Gray
Vaccinium
deliciosum Piper
[Ericaceae]
Vaccinium
fuscatum Aiton
[Ericaceae]
Synonymies:
Vaccinium arkansanum Ashe
Vaccinium atrococcum (A. Gray) A. Heller
Vaccinium
macrocarpon Aiton
[Ericaceae]
Synonymies:
Oxycoccus macrocarpos (Aiton) Pers.
Vaccinium
membranaceum Douglas ex Torr.
[Ericaceae]
Synonymies:
Vaccinium coccineum Piper
Vaccinium
microcarpum (Turcz. ex Rupr.)
Schmalh. [Ericaceae]
Synonymies:
Oxycoccus microcarpus Turcz. ex Rupr.
Vaccinium
myrtilloides Michx.
[Ericaceae]
Synonymies:
Vaccinium canadense Kalm ex Richardson
Vaccinium
myrtillus L.
[Ericaceae]
Vaccinium
ovalifolium Sm.
[Ericaceae]
Synonymies:
Vaccinium axillare Nakai
Vaccinium chamissonis Bong.
Vaccinium
ovatum Pursh
[Ericaceae]
Vaccinium
oxycoccos L.
[Ericaceae]
Synonymies:
Oxycoccus palustris Pers.
Oxycoccus quadripetalus Gilib.
Vaccinium palustre Salisb.
Vaccinium
parvifolium Sm.
[Ericaceae]
Vaccinium
scoparium Leiberg
[Ericaceae]
Vaccinium
stamineum L.
[Ericaceae]
Vaccinium
uliginosum L.
[Ericaceae]
Vaccinium
uliginosum subsp.
gaultherioides (Bigelow) S.
B. Young [Ericaceae]
Synonymies:
Vaccinium gaultherioides Bigelow
Vaccinium
uliginosum subsp.
occidentale (A. Gray)
Hultén [Ericaceae]
Synonymies:
Vaccinium occidentale A. Gray
Vaccinium
uliginosum subsp.
uliginosum
[Ericaceae]
Vaccinium
vitis-idaea L.
[Ericaceae]
Vaccinium
vitis-idaea subsp. minus
(Lodd.) Hultén [Ericaceae]
Synonymies:
Vaccinium vitis-idaea var. minus Lodd.
Vahlodea
atropurpurea (Wahlenb.) Fr. ex
Hartm. [Poaceae]
Synonymies:
Aira atropurpurea Wahlenb.
Avena atropurpurea (Wahlenb.) Link
Deschampsia atropurpurea (Wahlenb.) Scheele
Valeriana
edulis Nutt. ex Torr. & A.
Gray [Valerianaceae]
Valeriana
sitchensis Bong.
[Valerianaceae]
Vallisneria
americana Michx.
[Hydrocharitaceae]
Veratrum
viride Aiton
[Liliaceae]
Synonymies:
Veratrum eschscholtzii A. Gray
Veratrum lobelianum var. eschscholtzianum Schult. & Schult. f.
Verbena
bracteata Cav. ex Lag. &
Rodríguez [Verbenaceae]
Verbena
hastata L.
[Verbenaceae]
Verbena
simplex Lehm.
[Verbenaceae]
Synonymies:
Verbena angustifolia Michx., nom. illeg.
Verbena
stricta Vent.
[Verbenaceae]
Verbena
urticifolia L.
[Verbenaceae]
Veronica
americana Schwein. ex Benth.
[Scrophulariaceae]
Veronica
peregrina L.
[Scrophulariaceae]
Veronica
serpyllifolia L.
[Scrophulariaceae]
Veronicastrum
virginicum (L.) Farw.
[Scrophulariaceae]
Synonymies:
Leptandra virginica (L.) Nutt.
Viburnum
acerifolium L.
[Adoxaceae]
Viburnum
cassinoides L.
[Adoxaceae]
Viburnum
dentatum L.
[Adoxaceae]
Synonymies:
Viburnum dentatum var. pubescens Aiton
Viburnum pubescens (Aiton) Pursh
Viburnum
dentatum var. lucidum
Aiton [Adoxaceae]
Synonymies:
Viburnum recognitum Fernald
Viburnum
edule (Michx.) Raf.
[Adoxaceae]
Synonymies:
Viburnum opulus var. edule Michx.
Viburnum opulus var. pauciflorum Raf.
Viburnum pauciflorum Bach. Pyl. ex Torr. & A. Gray
Viburnum
lantanoides Michx.
[Adoxaceae]
Synonymies:
Viburnum alnifolium auct.
Viburnum
lentago L.
[Adoxaceae]
Viburnum
opulus L.
[Adoxaceae]
Viburnum
opulus var. americanum
Aiton [Adoxaceae]
Synonymies:
Viburnum trilobum Marshall
Viburnum
rafinesquianum Schult.
[Adoxaceae]
Vicia
americana Muhl. ex Willd.
[Fabaceae]
Synonymies:
Vicia americana var. oregana (Nutt.) A. Nelson
Vicia oregana Nutt.
Vicia
caroliniana Walter
[Fabaceae]
Vicia
nigricans Hook. & Arn.
[Fabaceae]
Vicia
nigricans subsp.
gigantea (Hook.) Lassetter
& C. R. Gunn [Fabaceae]
Synonymies:
Vicia gigantea Hook.
Viola
lanceolata L.
[Violaceae]
Viola
langsdorfii Fisch. ex Ging.
[Violaceae]
Synonymies:
Viola simulata M. S. Baker
Viola
pubescens Aiton
[Violaceae]
Viola
sororia Willd.
[Violaceae]
Vitis
aestivalis Michx.
[Vitaceae]
Synonymies:
Vitis rufotomentosa Small
Vitis
aestivalis var.
argentifolia (Munson)
Fernald [Vitaceae]
Synonymies:
Vitis aestivalis var. bicolor sensu Deam
Vitis argentifolia Munson ex House
Vitis
riparia Michx.
[Vitaceae]
Vulpia
octoflora (Walter) Rydb.
[Poaceae]
Synonymies:
Festuca octoflora Walter
Woodwardia
areolata (L.) T. Moore
[Blechnaceae]
Synonymies:
Acrostichum areolatum L.
Lorinseria areolata (L.) C. Presl
Woodwardia
virginica (L.) Sm.
[Blechnaceae]
Yucca
glauca Nutt.
[Agavaceae]
Zanthoxylum
americanum Mill.
[Rutaceae]
Zigadenus
elegans Pursh
[Liliaceae]
Zigadenus
elegans subsp. elegans
[Liliaceae]
Zigadenus
elegans subsp. glaucus
(Nutt.) Hultén [Liliaceae]
Synonymies:
Melanthium glaucum Nutt.
Zigadenus
venenosus S. Watson
[Liliaceae]
Zigadenus
venenosus var. gramineus
(Rydb.) Walsh ex M. Peck [Liliaceae]
Synonymies:
Zigadenus gramineus Rydb.
Zigadenus
venenosus var. venenosus
[Liliaceae]
Zizania
aquatica L.
[Poaceae]
Zizania
aquatica var. aquatica
[Poaceae]
Synonymies:
Zizania aquatica var. subbrevis B. Boivin
Zizania
aquatica var. brevis
Fassett [Poaceae]
Zizania
palustris L.
[Poaceae]
Zizania
palustris var. interior
(Fassett) Dore [Poaceae]
Synonymies:
Zizania aquatica var. interior Fassett
Zizania
palustris var. palustris
[Poaceae]
Synonymies:
Zizania aquatica var. angustifolia Hitchc.
Cite as: USDA, ARS, National Genetic Resources Program. Germplasm
Resources Information Network - (GRIN). [Online Database]
National Germplasm Resources Laboratory, Beltsville, Maryland.
Available: www.ars-grin.gov/cgi-bin/npgs/html/taxlist.pl?Canada (27
November 1999)