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Taxon author: Scribn.

ITIS records citing taxon author "Scribn."
 
 Kingdom Plantae
  Achnatherum multinode (Scribn. ex Beal) Valdés-Reyna & Barkworth -- accepted
  Achnatherum nelsonii (Scribn.) Barkworth -- accepted -- Columbia needlegrass, Nelson achnatherum
  Achnatherum nelsonii ssp. nelsonii (Scribn.) Barkworth -- accepted -- Columbia needlegrass, Nelson needlegrass
  Aegopogon breviglumis (Scribn.) Nash -- not accepted
  Aegopogon cenchroides var. breviglumis (Scribn.) Beetle -- not accepted
  Aegopogon geminiflorus var. breviglumis Scribn. -- not accepted
  Agropyron alaskanum Scribn. & Merr. -- not accepted
  Agropyron albicans Scribn. & J.G. Sm. -- not accepted
  Agropyron albicans var. albicans Scribn. & J.G. Sm. -- not accepted
  Agropyron albicans var. griffithii (Scribn. & J.G. Sm. ex Piper) Beetle -- not accepted
  Agropyron albicans var. griffithsii (Scribn. & J.G. Sm. ex Piper) Beetle -- not accepted
  Agropyron andinum (Scribn. & J.G. Sm.) Rydb. -- not accepted
  Agropyron arizonicum Scribn. & J.G. Sm. -- not accepted
  Agropyron biflorum ssp. andinum (Scribn. & J.G. Sm.) Piper -- not accepted
  Agropyron biflorum ssp. latiglume (Scribn. & J.G. Sm.) Piper -- not accepted
  Agropyron boreale ssp. alaskanum (Scribn. & Merr.) Melderis -- not accepted
  Agropyron boreale var. alaskanum (Scribn. & Merr.) S.L. Welsh -- not accepted
  Agropyron brevifolium Scribn. -- not accepted
  Agropyron caninoides var. pubescens Scribn. & J.G. Sm. -- not accepted
  Agropyron caninum f. ciliatum (Scribn. & J.G. Sm.) Pease & A.H. Moore -- not accepted
  Agropyron caninum f. pringlei (Scribn. & J.G. Sm.) Pease & A.H. Moore -- not accepted
  Agropyron caninum f. pubescens (Scribn. & J.G. Sm.) Pease & A.H. Moore -- not accepted
  Agropyron caninum var. andinum (Scribn. & J.G. Sm.) Pease & A.H. Moore -- not accepted
  Agropyron caninum var. latiglume (Scribn. & J.G. Sm.) Pease & A.H. Moore -- not accepted
  Agropyron caninum var. majus Scribn. -- not accepted
  Agropyron caninum var. pubescens Scribn. & J.G. Sm. -- not accepted
  Agropyron dasystachyum (Hook.) Scribn. -- not accepted
  Agropyron dasystachyum ssp. albicans (Scribn. & J.G. Sm.) D.R. Dewey -- not accepted
  Agropyron dasystachyum ssp. yukonense (Scribn. & Merr.) D.R. Dewey -- not accepted
  Agropyron dasystachyum var. dasystachyum (Hook.) Scribn. -- not accepted
  Agropyron dasystachyum var. riparium (Scribn. & J.G. Sm.) Bowden -- not accepted
  Agropyron dasystachyum var. riparum (Scribn. & J.G. Sm.) Bowden -- not accepted
  Agropyron dasystachyum var. subvillosum (Hook.) Scribn. & J.G. Sm. -- not accepted
  Agropyron divergens var. inerme Scribn. & J.G. Sm. -- not accepted
  Agropyron divergens var. tenuispicum Scribn. & J.G. Sm. -- not accepted
  Agropyron elmeri Scribn. -- not accepted
  Agropyron glaucum var. occidentale Scribn. -- not accepted
  Agropyron gmelinii var. pringlei Scribn. & J.G. Sm. -- not accepted
  Agropyron griffithii Scribn. & J.G. Sm. ex Piper -- not accepted
  Agropyron griffithsii Scribn. & J.G. Sm. ex Piper -- not accepted
  Agropyron inerme (Scribn. & J.G. Sm.) Rydb. -- not accepted
  Agropyron laeve (Scribn. & J.G. Sm.) Hitchc. -- not accepted
  Agropyron lanceolatum Scribn. & J.G. Sm. -- not accepted
  Agropyron latiglume (Scribn. & J.G. Sm.) Rydb. -- not accepted
  Agropyron latiglume var. andinum (Scribn. & J.G. Sm.) Malte -- not accepted
  Agropyron molle (Scribn. & J.G. Sm.) Rydb. -- not accepted
  Agropyron novae-angliae Scribn. -- not accepted
  Agropyron occidentale (Scribn.) Scribn. -- not accepted
  Agropyron occidentale var. molle (Scribn. & J.G. Sm.) Scribn. -- not accepted
  Agropyron occidentale var. occidentale (Scribn.) Scribn. -- not accepted
  Agropyron occidentale var. palmeri (Scribn. & J.G. Sm.) Scribn. -- not accepted
  Agropyron palmeri (Scribn. & J.G. Sm.) Rydb. -- not accepted
  Agropyron parishii Scribn. & J.G. Sm. -- not accepted
  Agropyron parishii var. laeve Scribn. & J.G. Sm. -- not accepted
  Agropyron pauciflorum ssp. laeve (Scribn. & J.G. Sm.) Gould -- not accepted
  Agropyron pauciflorum ssp. novae-angliae (Scribn.) Melderis -- not accepted
  Agropyron pauciflorum var. novae-angliae (Scribn.) Taylor & MacBryde -- not accepted
  Agropyron pringlei (Scribn. & J.G. Sm.) Hitchc. -- not accepted
  Agropyron pseudorepens Scribn. & J.G. Sm. -- not accepted
  Agropyron pseudorepens var. magnum Scribn. & J.G. Sm. -- not accepted
  Agropyron repens f. pilosum (Scribn.) Fernald -- not accepted
  Agropyron repens var. glaucum (Roem. & Schult.) Scribn. -- not accepted
  Agropyron repens var. novae-angliae Scribn. & J.G. Sm. -- not accepted
  Agropyron repens var. pilosum Scribn. -- not accepted
  Agropyron richardsonii Schrad. ex Scribn. & J.G. Sm. -- not accepted
  Agropyron richardsonii var. ciliatum Scribn. & J.G. Sm. -- not accepted
  Agropyron riparium Scribn. & J.G. Sm. -- not accepted
  Agropyron riparum Scribn. & J.G. Sm. -- not accepted
  Agropyron saxicola (Scribn. & J.G. Sm.) Piper -- not accepted
  Agropyron smithii f. molle (Scribn. & J.G. Sm.) J.M. Gillett -- not accepted
  Agropyron smithii var. molle (Scribn. & J.G. Sm.) M.E. Jones -- not accepted
  Agropyron smithii var. palmeri (Scribn. & J.G. Sm.) A. Heller -- not accepted
  Agropyron smithii var. riparium (Scribn. & J.G. Sm.) M.E. Jones -- not accepted
  Agropyron spicatum (Pursh) Scribn. & J.G. Sm. -- not accepted
  Agropyron spicatum f. inerme (Scribn. & J.G. Sm.) Beetle -- not accepted
  Agropyron spicatum var. arizonicum (Scribn. & J.G. Sm.) M.E. Jones -- not accepted
  Agropyron spicatum var. inerme (Scribn. & J.G. Sm.) A. Heller -- not accepted
  Agropyron spicatum var. molle Scribn. & J.G. Sm. -- not accepted
  Agropyron spicatum var. palmeri Scribn. & J.G. Sm. -- not accepted
  Agropyron spicatum var. pringlei (Scribn. & J.G. Sm.) M.E. Jones -- not accepted
  Agropyron spicatum var. spicatum (Pursh) Scribn. & J.G. Sm. -- not accepted
  Agropyron spicatum var. vaseyi (Scribn. & J.G. Sm.) E.E. Nelson -- not accepted
  Agropyron subsecundum var. andinum (Scribn. & J.G. Sm.) Hitchc. -- not accepted
  Agropyron tenerum ssp. magnum (Scribn. & J.G. Sm.) Piper -- not accepted
  Agropyron tenerum var. ciliatum Scribn. & J.G. Sm. -- not accepted
  Agropyron tenerum var. longifolium Scribn. & J.G. Sm. -- not accepted
  Agropyron tenerum var. novae-angliae (Scribn.) Farw. -- not accepted
  Agropyron tenerum var. pseudorepens (Scribn. & J.G. Sm.) M.E. Jones -- not accepted
  Agropyron tetrastachys Scribn. & J.G. Sm. -- not accepted
  Agropyron trachycaulum f. andinum (Scribn. & J.G. Sm.) Beetle -- not accepted
  Agropyron trachycaulum f. ciliatum (Scribn. & J.G. Sm.) Dore -- not accepted
  Agropyron trachycaulum f. pseudorepens (Scribn. & J.G. Sm.) Beetle -- not accepted
  Agropyron trachycaulum var. ciliatum (Scribn. & J.G. Sm.) Malte -- not accepted
  Agropyron trachycaulum var. ciliatum (Scribn. & J.G. Sm.) Gleason -- not accepted
  Agropyron trachycaulum var. latiglume (Scribn. & J.G. Sm.) Beetle -- not accepted
  Agropyron trachycaulum var. novae-angliae (Scribn.) Fernald -- not accepted
  Agropyron vaseyi Scribn. & J.G. Sm. -- not accepted
  Agropyron violaceum ssp. andinum (Scribn. & J.G. Sm.) Melderis -- not accepted
  Agropyron violaceum var. andinum Scribn. & J.G. Sm. -- not accepted
  Agropyron violaceum var. latiglume Scribn. & J.G. Sm. -- not accepted
  Agropyron X brevifolium Scribn. -- not accepted
  Agropyron X pseudorepens Scribn. & J.G. Sm. -- not accepted
  Agropyron X saxicola (Scribner & J.G. Smith) Piper (pro sp.) -- not accepted
  Agropyron yukonense Scribn. & Merr. -- not accepted
  Agrostis arenaria (Vasey) Scribn. -- not accepted
  Agrostis borealis var. americana (Scribner ex Macoun) Fernald -- not accepted
  Agrostis borealis var. paludosa (Scribn.) Fernald -- not accepted
  Agrostis davyi Scribn. -- not accepted
  Agrostis hallii var. pringlei (Scribn.) Hitchc. -- not accepted -- Pringle's bentgrass
  Agrostis howellii Scribn. -- accepted -- Howell's bentgrass
  Agrostis hyemalis var. nutkaensis (Kunth) Scribn. & Merr. -- not accepted
  Agrostis inflata Scribn. -- not accepted -- spider bentgrass
  Agrostis intermedia Scribn. ex Kearney -- not accepted
  Agrostis occidentalis Scribn. & Merr. -- not accepted
  Agrostis paludosa Scribn. -- not accepted
  Agrostis pringlei Scribn. -- not accepted
  Agrostis rosei Scribn. & Merr. -- accepted
  Agrostis rubra var. americana Scribner ex Macoun -- not accepted
  Agrostis virescens var. microphylla (Steud.) Scribn. -- not accepted
  Aira curtifolia (Scribn.) Rydb. -- not accepted
  Alopecurus alpinus var. occidentalis (Scribn. & Tweedy) B. Boivin -- not accepted
  Alopecurus geniculatus var. caespitosus Scribn. -- not accepted
  Alopecurus occidentalis Scribn. & Tweedy -- not accepted
  Anastrophus paspaloides (Scribner) Nash -- not accepted
  Anastrophus rosei (Scribn. & Merr.) Nash -- not accepted
  Anatherum argyraeum var. pringlei (Scribn. & Merr.) Roberty -- not accepted
  Anatherum virginicum subvar. floridanum (Scribn.) Roberty -- not accepted
  Anatherum virginicum subvar. laxiflorum (Scribn.) Roberty -- not accepted
  Andropogon bakeri Scribn. & C.R. Ball -- not accepted
  Andropogon elliottii var. glaucescens Scribn. -- not accepted
  Andropogon elliottii var. laxiflorus Scribn. -- not accepted
  Andropogon floridanus Scribn. -- accepted -- Florida bluestem
  Andropogon glomeratus var. abbreviatus (Hack.) Scribn. -- not accepted
  Andropogon glomeratus var. corymbosus (Chapm. ex Hack.) Scribn. -- not accepted
  Andropogon hallii var. grandiflorus Scribn. -- not accepted
  Andropogon linnaeanus (Hack.) Scribn. & Kearney -- not accepted
  Andropogon mississippiensis Scribn. & C.R. Ball -- not accepted
  Andropogon pringlei Scribn. & Merr. -- accepted
  Andropogon provincialis var. tennesseensis Scribn. -- not accepted
  Andropogon saccharoides var. glaucus Scribn. -- not accepted
  Andropogon scoparius var. polycladus Scribn. & C.R. Ball -- not accepted
  Andropogon tennesseensis (Scribn.) Scribn. -- not accepted
  Andropogon ternarius var. glaucescens (Scribn.) Fernald & Griscom -- not accepted
  Anthochloa colusana (Burtt Davy) Scribn. -- not accepted
  Aristida americana var. bromoides (Kunth) Scribn. & Merr. -- not accepted
  Aristida combsii Scribn. & C.R. Ball -- not accepted
  Aristida condensata var. combsii (Scribn. & C.R. Ball) Henrard -- not accepted
  Aristida intermedia Scribn. & C.R. Ball -- not accepted
  Aristida lanuginosa Scribn. ex Hitchc. -- not accepted
  Aristida lemmonii Scribn. -- not accepted
  Aristida mexicana Scribn. ex Henrard -- accepted
  Aristida purpurascens var. glaucissima Kearney ex Scribn. & Ball -- not accepted
  Arrhenatherum hookeri (Scribn.) Potztal -- not accepted
  Arrhenatherum mortonianum (Scribn.) Potztal -- not accepted
  Arundinaria gigantea var. tecta (Walter) Scribn. -- not accepted
  Atropis alaskana (Scribn. & Merr.) V.I. Krecz. -- not accepted
  Atropis canbyi (Scribn.) Beal -- not accepted
  Atropis nevadensis (Vasey ex Scribn.) Beal -- not accepted
  Atropis pringlei (Scribn.) Vasey ex Beal -- not accepted
  Atropis unilaterale (Scribn. ex Vasey) Beal -- not accepted
  Avena americana (Scribn.) Scribn. -- not accepted
  Avena hookeri Scribn. -- not accepted
  Avena micrantha Scribn. -- not accepted
  Avena mortoniana Scribn. -- not accepted
  Avena pratensis var. americana Scribn. -- not accepted
  Avena stipoides Scribn. -- not accepted
  Avenochloa hookeri (Scribn.) Holub -- not accepted
  Avenula hookeri (Scribn.) Holub -- accepted
  Avenula hookeri ssp. hookeri (Scribn.) Holub -- accepted
  Axonopus rosei (Scribn. & Merr.) Chase -- accepted
  Bealia Scribn. -- accepted
  Bealia mexicana Scribn. -- not accepted
  Bealia mexicana Scribn. ex Beal -- not accepted
  Beckmannia eruciformis var. uniflora Scribn. ex A. Gray -- not accepted
  Beckmannia syzigachne var. uniflora (Scribn. ex A. Gray) B. Boivin -- not accepted
  Botelua americana (L.) Scribn. -- not accepted
  Bouteloua americana (L.) Scribn. -- accepted -- American grama
  Bouteloua burkii Scribn. -- not accepted
  Bouteloua burkii Scribn. ex S. Watson -- not accepted
  Bouteloua gracilis f. pallida (Scribn. ex Beal) B. Boivin -- not accepted
  Bouteloua hirta Scribn. ex Vasey -- not accepted
  Bouteloua hirta (Kunth) Scribn. -- not accepted
  Bouteloua hirticulmis Scribn. -- not accepted
  Bouteloua mexicana (Scribn.) Columbus -- accepted
  Bouteloua micrantha Scribn. & Merr. -- not accepted
  Bouteloua oligostachya var. pallida Scribn. ex Beal -- not accepted
  Bouteloua oligostachya var. ramosa (Scribn. ex Vasey) Scribn. ex Beal -- not accepted
  Bouteloua pringlei Scribn. -- not accepted
  Bouteloua ramosa Scribn. ex Vasey -- accepted -- Chino grama
  Bouteloua repens (Kunth) Scribn. -- accepted -- slender grama
  Bouteloua stolonifera Scribn. -- accepted
  Bouteloua triaena (Trin. ex Spreng.) Scribn. -- accepted
  Bouteloua trifida var. burkii (Scribn. ex S. Watson) Vasey ex L.H. Dewey -- not accepted -- red grama
  Bouteloua vestita (S. Watson) Scribn. ex L.H. Dewey -- not accepted
  Brachiaria arizonica (Scribn. & Merr.) S.T. Blake -- not accepted -- Arizona signalgrass
  Brachiaria arizonica var. laeviglumis (Scribn. & Merr.) Beetle -- not accepted
  Brachiaria arizonica var. tenuis (Scribn. & Merr.) Beetle -- not accepted
  Brachypodium pringlei Scribn. ex Beal -- accepted
  Bromelica geyeri var. howellii (Scribn.) Farw. -- not accepted
  Bromelica spectabilis (Scribn.) W.A. Weber -- not accepted
  Bromopsis arctica (Shear ex Scribn. & Merr.) Holub -- not accepted
  Bromopsis inermis ssp. pumpelliana (Scribn.) W.A. Weber -- not accepted
  Bromopsis inermis var. pumpelliana (Scribn.) C.L. Hitchc. -- not accepted
  Bromopsis latiglumis (Scribn. ex Shear) Holub -- not accepted
  Bromopsis pumpelliana (Scribn.) Holub -- not accepted
  Bromopsis pumpelliana ssp. arctica (Shear ex Scribn. & Merr.) Á. Löve & D. Löve -- not accepted
  Bromopsis pumpelliana ssp. arctica (Shear ex Scribn. & Merr.) Tzvelev -- not accepted
  Bromus arcticus Shear ex Scribn. & Merr. -- not accepted
  Bromus ciliatus f. laeviglumis (Scribn. ex Shear) Wiegand -- not accepted
  Bromus ciliatus subvar. latiglumus (Scribn. ex Shear) Farw. -- not accepted
  Bromus ciliatus var. laeviglumis Scribn. ex Shear -- not accepted
  Bromus ciliatus var. latiglumis Scribn. ex Shear -- not accepted
  Bromus ciliatus var. scariosus Scribn. -- not accepted
  Bromus hookerianus var. minor Scribn. ex Vasey -- not accepted
  Bromus inermis ssp. pumpellianus (Scribn.) Wagnon -- not accepted -- Pumpelly's brome
  Bromus inermis ssp. pumpellianus var. arcticus (Shear ex Scribn. & Merr.) Wagnon -- not accepted -- Pumpelly's brome
  Bromus inermis ssp. pumpellianus var. pumpellianus (Scribn.) C.L. Hitchc. -- not accepted -- Pumpelly's brome
  Bromus inermis var. arcticus (Shear ex Scribn. & Merr.) Wagnon -- not accepted -- Pumpelly's brome
  Bromus inermis var. aristatus Schur ex Scribn. & Merr. -- not accepted
  Bromus inermis var. tweedyi (Scribn. ex Beal) C.L. Hitchc. -- not accepted
  Bromus laeviglumis (Scribn. ex Shear) Hitchc. -- not accepted
  Bromus latiglumis (Scribn. ex Shear) Hitchc. -- accepted -- broad-glumed brome, early-leaf brome, earlyleaf brome
  Bromus latiglumis f. latiglumis (Scribn. ex Shear) Hitchc. -- accepted
  Bromus multiflorus Scribn. -- not accepted
  Bromus polyanthus Scribn. ex Shear -- accepted -- Great Basin brome, polyanthus brome
  Bromus polyanthus var. polyanthus Scribn. ex Shear -- accepted -- Great Basin brome
  Bromus pubescens var. laeviglumis (Scribn. ex Shear) Swallen -- not accepted
  Bromus pumpellianus Scribn. -- accepted
  Bromus pumpellianus ssp. pumpellianus Scribn. -- accepted
  Bromus pumpellianus var. arcticus (Shear ex Scribn. & Merr.) A.E. Porsild -- accepted
  Bromus pumpellianus var. pumpellianus Scribn. -- accepted
  Bromus pumpellianus var. tweedyi Scribn. -- not accepted
  Bromus pumpellianus var. tweedyi Scribn. ex Beal -- not accepted
  Bromus purgans var. laeviglumis (Scribn. ex Shear) Swallen -- not accepted
  Bromus purgans var. latiglumis Scribn. ex Shear -- not accepted
  Bromus scabratus Scribn. -- not accepted
  Bromus schaffneri (E. Fourn.) Scribn. & Merr. -- not accepted
  Bromus virens var. minor Scribn. ex Beal -- not accepted
  Calamagrostis americana (Vasey) Scribn. -- not accepted
  Calamagrostis breviseta (A. Gray) Scribn. -- not accepted
  Calamagrostis caespitosa Scribn. -- not accepted
  Calamagrostis canadensis var. dubia (Scribn. & Tweedy) Vasey -- not accepted
  Calamagrostis deschampsioides ssp. macrantha Piper ex Scribn. & Merr. -- not accepted
  Calamagrostis deschampsioides var. macrantha (Piper ex Scribn. & Merr.) Tzvelev -- not accepted
  Calamagrostis dubia (Scribn. & Tweedy) Scribn. ex Vasey -- not accepted
  Calamagrostis lucida Scribn. -- not accepted
  Calamagrostis macrantha (Piper ex Scribn. & Merr.) V.N. Vassil. -- not accepted
  Calamagrostis montanensis (Scribn.) Beal -- not accepted
  Calamagrostis montanensis Scribn. ex Vasey -- not accepted -- plains reedgrass
  Calamagrostis montanensis (Scribn.) Vasey -- accepted
  Calamagrostis neglecta var. gracilis Scribn. ex Kearney -- not accepted
  Calamagrostis pallida Vasey & Scribn. ex Vasey -- not accepted
  Calamagrostis perplexa Scribn. -- accepted -- wood reedgrass
  Calamagrostis plumosa (E. Fourn.) Scribn. ex Beal -- not accepted
  Calamagrostis porteri ssp. perplexa (Scribn.) R.T. Clausen -- not accepted
  Calamagrostis pringlei Scribn. ex Beal -- accepted
  Calamagrostis rigescens (J. Presl) Scribn. -- accepted
  Calamagrostis suksdorfii (Scribn.) Scribn. -- not accepted
  Calamagrostis suksdorfii var. suksdorfii (Scribn.) Scribn. -- not accepted
  Calamagrostis tweedyi (Scribn.) Scribn. -- accepted -- Tweedy's reedgrass
  Calamovilfa (A. Gray) Hack. ex Scribn. & Southw. -- accepted -- sandreed
  Calamovilfa brevipilis (Torr.) Hack. ex Scribn. & Southw. -- accepted -- pine barren sandreed
  Calamovilfa brevipilis var. brevipilis (Torr.) Hack. ex Scribn. & Southw. -- not accepted
  Calamovilfa curtissii (Vasey) Scribn. -- accepted -- Florida sandreed
  Calamovilfa gigantea (Nutt.) Scribn. & Merr. -- accepted -- big sandreed, giant sandreed
  Calamovilfa longifolia (Hook.) Hack. ex Scribn. & Southw. -- accepted -- prairie sandreed
  Calamovilfa longifolia var. longifolia (Hook.) Hack. ex Scribn. & Southw. -- accepted -- prairie sand-reed, prairie sandreed
  Calamovilfa longifolia var. magna Scribn. & Merr. -- accepted -- prairie sandreed
  Campulosus aromaticus (Walter) Scribn. -- not accepted
  Cenchrus echinatus var. brevisetus (E. Fourn.) Scribn. -- not accepted
  Cenchrus insularis Scribn. -- not accepted
  Cenchrus macrocephalus (Döll) Scribn. -- not accepted
  Ceratochloa polyantha (Scribn. ex Shear) Tzvelev -- not accepted
  Ceratochloa polyantha (Scribn. ex Shear) W.A. Weber -- not accepted
  Chaetochloa Scribn. -- not accepted
  Chaetochloa ambigua (Guss.) Scribn. & Merr. -- not accepted
  Chaetochloa amplifolia (Steud.) Scribn. -- not accepted
  Chaetochloa brevispica Scribn. & Merr. -- not accepted
  Chaetochloa brevispica Scribn. -- not accepted
  Chaetochloa caudata (Lam.) Scribn. -- not accepted
  Chaetochloa composita (Kunth) Scribn. -- not accepted
  Chaetochloa corrugata (Elliott) Scribn. -- not accepted
  Chaetochloa corrugata var. parviflora (Poir.) Scribn. & Merr. -- not accepted
  Chaetochloa flava (Nees) Scribn. -- not accepted
  Chaetochloa gibbosa Scribn. & Merr. -- not accepted
  Chaetochloa glauca (L.) Scribn. -- not accepted
  Chaetochloa gracilis (Kunth) Scribn. & Merr. -- not accepted
  Chaetochloa grisebachii (E. Fourn.) Scribn. -- not accepted
  Chaetochloa grisebachii var. ampla Scribn. & Merr. -- not accepted
  Chaetochloa grisebachii var. mexicana Scribn. & Merr. -- not accepted
  Chaetochloa hispida Scribn. & Merr. -- not accepted
  Chaetochloa imberbis (Poir.) Scribn. -- not accepted
  Chaetochloa imberbis var. geniculata (Poir.) Scribn. & Merr. -- not accepted
  Chaetochloa imberbis var. imberbis (Poir.) Scribn. -- not accepted
  Chaetochloa imberbis var. penicillata (Willd. ex Nees) Scribn. & Merr. -- not accepted
  Chaetochloa imberbis var. perennis (Hall ex Smyth) Scribn. & Merr. -- not accepted
  Chaetochloa imberbis var. streptobotrys (E. Fourn.) Scribn. & Merr. -- not accepted
  Chaetochloa italica (L.) Scribn. -- not accepted
  Chaetochloa italica var. germanica (Mill.) Scribn. -- not accepted
  Chaetochloa laevigata Scribn. -- not accepted
  Chaetochloa latifolia Scribn. -- not accepted
  Chaetochloa latifolia var. breviseta Scribn. & Merr. -- not accepted
  Chaetochloa leucopila Scribn. & Merr. -- not accepted
  Chaetochloa liebmannii (E. Fourn.) Scribn. & Merr. -- not accepted
  Chaetochloa liebmannii var. pauciflora (Vasey ex Beal) Scribn. & Merr. -- not accepted
  Chaetochloa longipila (E. Fourn.) Scribn. & Merr. -- not accepted
  Chaetochloa macrosperma Scribn. & Merr. -- not accepted
  Chaetochloa macrostachya (Kunth) Scribn. & Merr. -- not accepted
  Chaetochloa magna (Griseb.) Scribn. -- not accepted
  Chaetochloa onurus (Willd. ex Trin.) Scribn. & Merr. -- not accepted
  Chaetochloa parviflora (Poir.) Scribn. -- not accepted
  Chaetochloa penicillata (Willd. ex Nees) Scribn. -- not accepted
  Chaetochloa polystachya (Scheele) Scribn. & Merr. -- not accepted
  Chaetochloa purpurascens (Kunth) Scribn. & Merr. -- not accepted
  Chaetochloa ramiseta (Scribn.) Smyth -- not accepted
  Chaetochloa rigida Scribn. & Merr. -- not accepted
  Chaetochloa scandens (Schrad.) Scribn. -- not accepted
  Chaetochloa scandens (Schrad.) Scribn. & Merr. -- not accepted
  Chaetochloa setosa (Sw.) Scribn. -- not accepted
  Chaetochloa verticillata (L.) Scribn. -- not accepted
  Chaetochloa villosissima Scribn. & Merr. -- not accepted
  Chaetochloa viridis (L.) Scribn. -- not accepted
  Chloris anisopoda Scribn. ex B.L. Rob. -- not accepted
  Chloris clandestina Scribn. & Merr. -- not accepted
  Chloris paniculata Scribn. -- accepted
  Chloropsis blanchardiana (E. Fourn. ex Scribn.) Kuntze -- not accepted
  Chloropsis blanchardiana Gay ex Scribn. -- not accepted
  Chusquea nelsonii Scribn. & J.G. Sm. -- accepted
  Cinna bolanderi Scribn. -- accepted -- Bolander's woodreed
  Cinna latifolia var. glomerata Scribn. ex Beal -- not accepted
  Cinna pendula var. bolanderi (Scribn.) Vasey -- not accepted
  Cinna pendula var. glomerula Scribn. -- not accepted
  Cinna poiformis (Kunth) Scribn. & Merr. -- accepted
  Clinelymus borealis (Scribn.) Nevski -- not accepted
  Clinelymus velutinus (Scribn. & Merr.) Nevski -- not accepted
  Coleataenia longifolia ssp. combsii (Scribner & C.R. Ball) Soreng -- accepted
  Coleataenia longifolia ssp. elongata (Scribn.) Soreng -- accepted
  Colpodium wrightii Scribn. & Merr. -- not accepted
  Colpodium wrightii var. flavum Scribn. & Merr. -- not accepted
  Colpodium wrightii var. wrightii Scribn. & Merr. -- not accepted
  Critesion depressum (Scribn. & J.G. Sm.) Á. Löve -- not accepted
  Ctenium glandulosum Scribn. & J.G. Sm. -- not accepted
  Cyclostachya stolonifera (Scribn.) Reeder & C. Reeder -- not accepted
  Danthonia americana Scribn. -- not accepted
  Danthonia californica var. americana (Scribn.) Hitchc. -- accepted
  Danthonia epilis Scribn. -- not accepted -- Carolina oatgrass
  Danthonia mexicana Scribn. -- not accepted
  Danthonia parryi Scribn. -- accepted -- Parry danthonia, Parry oatgrass, Parry's danthonia, Parry's oatgrass
  Danthonia parryi var. longifolia Scribn. -- not accepted
  Danthonia sericea var. epilis (Scribn.) Blomq. -- not accepted
  Danthonia spicata var. longipila Scribn. & Merr. -- not accepted
  Danthonia thermale Scribn. -- not accepted
  Danthonia thermalis Scribn. -- not accepted
  Deschampsia atropurpurea var. latifolia (Hook.) Scribn. ex Macoun -- not accepted
  Deschampsia curtifolia Scribn. -- not accepted
  Deschampsia hookeriana Scribn. -- not accepted
  Deschampsia pringlei Scribn. -- not accepted
  Deyeuxia bolanderi (Thurb.) Scribn. -- not accepted
  Deyeuxia deschampsioides (Trin.) Scribn. -- not accepted
  Deyeuxia dubia Scribn. & Tweedy -- not accepted
  Deyeuxia montanensis Scribn. -- not accepted
  Deyeuxia neglecta var. gracilis Scribn. -- not accepted
  Deyeuxia pringlei Scribn. ex Beal -- not accepted
  Deyeuxia suksdorfii Scribn. -- not accepted
  Deyeuxia tweedyi Scribn. -- not accepted
  Dichanthelium acuminatum ssp. columbianum (Scribn.) Freckmann & Lelong -- not accepted
  Dichanthelium acuminatum ssp. implicatum (Scribn.) Freckmann & Lelong -- not accepted
  Dichanthelium acuminatum var. implicatum (Scribn.) Gould & C.A. Clark -- not accepted
  Dichanthelium acuminatum var. thurowii (Scribn. & J.G. Sm.) Gould & C.A. Clark -- not accepted -- Thurow's panicgrass
  Dichanthelium acuminatum var. wrightianum (Scribn.) Gould & C.A. Clark -- not accepted
  Dichanthelium albomaculatum (Scribn.) Gould -- not accepted
  Dichanthelium columbianum (Scribn.) Freckmann -- not accepted
  Dichanthelium commutatum ssp. equilatrale (Scribn.) Freckmann & Lelong -- not accepted
  Dichanthelium implicatum (Scribn.) Kerguélen -- not accepted
  Dichanthelium linearifolium (Scribn.) Gould -- accepted -- slim-leaf rosette grass, slimleaf panicgrass, slimleaf panicum
  Dichanthelium linearifolium var. linearifolium (Scribn.) Gould -- not accepted
  Dichanthelium linearifolium var. werneri (Scribn.) Mohlenbr. -- not accepted
  Dichanthelium portoricense ssp. patulum (Scribn. & Merr.) Freckmann & Lelong -- not accepted
  Dichanthelium ravenelii (Scribn. & Merr.) Gould -- accepted -- Ravenel's rosette grass
  Dichanthelium sabulorum var. patulum (Scribn. & Merr.) Gould & C.A. Clark -- not accepted -- hemlock rosette grass
  Dichanthelium sphaerocarpon var. isophyllum (Scribn.) Gould & C.A. Clark -- not accepted -- roundseed panicgrass, roundseed panicum
  Dichanthelium viscidellum (Scribn.) Gould -- accepted
  Dichanthelium wrightianum (Scribn.) Freckmann -- not accepted -- Wright's rosette grass
  Digitaria badia (Scribn. & Merr.) Fernald -- accepted
  Digitaria gracillima (Scribn.) Fernald -- accepted -- longleaf crabgrass
  Diplachne dubia (Kunth) Scribn. -- not accepted
  Diplachne dubia var. dubia (Kunth) Scribn. -- not accepted
  Diplachne imbricata (Thurb.) Scribn. -- not accepted
  Diplachne mexicana (Scribn.) Hack. -- not accepted
  Diplachne viscida Scribn. -- not accepted
  Distichlis spicata var. stricta (Torr.) Scribn. -- not accepted
  Distichlis texana (Vasey) Scribn. -- not accepted
  Eatonia aristata Scribn. & Merr. -- not accepted
  Eatonia pallens (Biehler) Scribn. & Merr. -- not accepted
  Eatonia pubescens Scribn. & Merr. -- not accepted
  Elionurus barbiculmis var. parviflorus Scribn. -- not accepted
  Elymus alaskanus (Scribn. & Merr.) Á. Löve -- accepted -- Alaskan wheatgrass
  Elymus alaskanus ssp. alaskanus (Scribn. & Merr.) Á. Löve -- accepted -- Alaskan wheatgrass
  Elymus alaskanus ssp. latiglumis (Scribn. & J.G. Sm.) Á. Löve -- not accepted -- Alaskan wheatgrass
  Elymus albicans (Scribn. & J.G. Sm.) Á. Löve -- accepted -- Montana wheatgrass
  Elymus albicans var. albicans (Scribn. & J.G. Sm.) Á. Löve -- not accepted
  Elymus albicans var. griffithii (Scribn. & J.G. Sm. ex Piper) Dorn -- not accepted
  Elymus albicans var. griffithsii (Scribn. & J.G. Sm. ex Piper) Dorn -- not accepted
  Elymus ambiguus Vasey & Scribn. -- not accepted
  Elymus ambiguus var. ambiguus Vasey & Scribn. -- not accepted
  Elymus americanus Vasey & Scribn. ex Cassidy -- not accepted
  Elymus arenarius ssp. villosissimus (Scribn.) Hultén -- not accepted
  Elymus arenarius var. brevispicus (Scribn. & J.G. Sm.) B. Boivin -- not accepted
  Elymus arenarius var. villosissimus (Scribn.) Polunin -- not accepted
  Elymus arenarius var. villosissimus (Scribn.) Hultén -- not accepted
  Elymus arenicola Scribn. & J.G. Sm. -- not accepted
  Elymus arenicolus Scribn. & J.G. Sm. -- not accepted
  Elymus arizonicus (Scribn. & J.G. Sm.) Gould -- accepted -- Arizona wheatgrass, Arizona wildrye
  Elymus arkansanus Scribn. & C.R. Ball -- not accepted
  Elymus australis Scribn. & C.R. Ball -- not accepted
  Elymus borealis Scribn. -- not accepted
  Elymus brachystachys Scribn. & C.R. Ball -- not accepted
  Elymus brownii Scribn. & J.G. Sm. -- not accepted
  Elymus canadensis var. brachystachys (Scribn. & C.R. Ball) Farw. -- accepted
  Elymus canadensis var. robustus (Scribn. & J.G. Sm.) Mack. & Bush -- accepted
  Elymus capitatus Scribn. -- not accepted
  Elymus ciliatus Scribn. -- not accepted
  Elymus cinereus Scribn. & Merr. -- not accepted
  Elymus cinereus var. cinereus Scribn. & Merr. -- not accepted
  Elymus diversiglumis Scribn. & C.R. Ball -- accepted -- diverseglume wildrye
  Elymus flavescens Scribn. & J.G. Sm. -- not accepted
  Elymus glabriflorus (Vasey ex L.H. Dewey) Scribn. & C.R. Ball -- accepted
  Elymus glabriflorus var. australis (Scribn. & C.R. Ball) J.J.N. Campb. -- accepted
  Elymus glabriflorus var. glabriflorus (Vasey ex L.H. Dewey) Scribn. & C.R. Ball -- accepted
  Elymus glaucifolius var. robustus (Scribn. & J.G. Sm.) Bush -- not accepted
  Elymus griffithii (Scribn. & J.G. Sm. ex Piper) Á. Löve -- not accepted
  Elymus griffithsii (Scribn. & J.G. Sm. ex Piper) Á. Löve -- not accepted
  Elymus hansenii Scribn. -- not accepted
  Elymus hirsutiglumis Scribn. -- not accepted
  Elymus howellii Scribn. & Merr. -- not accepted
  Elymus intermedius Scribn. & J.G. Sm. -- not accepted
  Elymus kronokensis var. alaskanus (Scribn. & Merr.) Jaaska -- not accepted
  Elymus laevis (Scribn. & J.G. Sm.) Hoover -- not accepted
  Elymus lanceolatus (Scribn. & J.G. Sm.) Gould -- accepted -- streambank wheatgrass, streamside wild rye
  Elymus lanceolatus ssp. albicans (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey -- not accepted
  Elymus lanceolatus ssp. lanceolatus (Scribn. & J.G. Sm.) Gould -- accepted -- streambank wheatgrass, streamside wild rye, thickspike wheatgrass
  Elymus lanceolatus ssp. riparius (Scribn. & J.G. Sm.) Barkworth -- accepted
  Elymus lanceolatus ssp. yukonensis (Scribn. & Merr.) Á. Löve -- not accepted
  Elymus lanceolatus var. riparius (Scribn. & J.G. Sm.) Dorn -- not accepted
  Elymus mollis ssp. villosissimus (Scribn.) Á. Löve -- not accepted
  Elymus mollis var. brevispicus Scribn. & J.G. Sm. -- not accepted
  Elymus mollis var. brevispisus Scribn. & J.G. Sm. -- not accepted
  Elymus novae-angliae (Scribn.) Tzvelev -- not accepted
  Elymus occidentalis Scribn. -- not accepted
  Elymus pauciflorus ssp. laeve (Scribn. & J.G. Sm.) Gould -- not accepted
  Elymus pauciflorus ssp. pseudorepens (Scribn. & J.G. Sm.) Gould -- not accepted
  Elymus philadelphicus var. brachystachys (Scribn. & C.R. Ball) Farw. -- not accepted
  Elymus philadelphicus var. robustus (Scribn. & J.G. Sm.) Farw. -- not accepted
  Elymus pringlei Scribn. & Merr. -- accepted
  Elymus riparius (Scribn. & J.G. Sm.) Gould -- not accepted
  Elymus robustus Scribn. & J.G. Sm. -- not accepted
  Elymus saxicola Scribn. & J.G. Sm. -- not accepted
  Elymus simplex Scribn. & T.A. Williams -- not accepted
  Elymus simplex var. luxurians Scribn. & T.A. Williams -- not accepted
  Elymus striatus var. arkansanus (Scribn. & C.R. Ball) Hitchc. -- not accepted
  Elymus trachycaulus f. andinus (Scribn. & J.G. Sm.) Beetle -- not accepted
  Elymus trachycaulus ssp. andinus (Scribn. & J.G. Sm.) Á. Löve & D. Löve -- accepted
  Elymus trachycaulus ssp. novae-angliae (Scribn.) Tzvelev -- accepted
  Elymus trachycaulus var. andinus (Scribn. & J.G. Sm.) Dorn -- not accepted
  Elymus trachycaulus var. latiglumis (Scribn. & J.G. Sm.) Beetle -- not accepted
  Elymus tricoides ssp. simplex (Scribn. & Williams) Á. Löve -- not accepted
  Elymus tricoides var. simplex (Scribn. & Williams) A.S. Hitchc. -- not accepted
  Elymus triticoides ssp. simplex (Scribn. & T.A. Williams) Á. Löve -- not accepted
  Elymus triticoides var. simplex (Scribn. & T.A. Williams) Hitchc. -- not accepted
  Elymus velutinus Scribn. & Merr. -- not accepted
  Elymus villosissimus Scribn. -- not accepted
  Elymus villosus f. arkansanus (Scribn. & C.R. Ball) Fernald -- not accepted
  Elymus villosus var. arkansanus (Scribn. & C.R. Ball) J.J.N. Campb. -- accepted
  Elymus virginicus f. australis (Scribn. & C.R. Ball) Fernald -- not accepted
  Elymus virginicus f. hirsutiglumis (Scribn.) Fernald -- not accepted
  Elymus virginicus var. australis (Scribn. & C.R. Ball) Hitchc. -- not accepted
  Elymus virginicus var. hirsutiglumis (Scribn.) Hitchc. -- not accepted
  Elymus X hansenii Scribn. -- accepted -- Hansen squirreltail, Hansen's wildrye
  Elymus X pseudorepens (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey -- accepted -- creeping wildrye, false quackgrass
  Elymus X saxicola Scribn. & J.G. Sm. -- not accepted
  Elymus X yukonensis (Scribn. & Merr.) Á. Löve -- accepted -- Yukon wheatgrass
  Elyonurus barbiculmis var. parviflorus Scribn. -- not accepted
  Elytrigia arizonica (Scribn. & J.G. Sm.) D.R. Dewey -- not accepted
  Elytrigia dasystachya ssp. albicans (Scribn. & J.G. Sm.) D.R. Dewey -- not accepted
  Elytrigia dasystachya ssp. yukonense (Scribn. & Merr.) D.R. Dewey -- not accepted
  Elytrigia dasystachya ssp. yukonensis (Scribn. & Merr.) D.R. Dewey -- not accepted
  Elytrigia parishii (Scribn. & J.G. Sm.) D.R. Dewey -- not accepted
  Elytrigia ripara (Scribn. & J.G. Sm.) Beetle -- not accepted
  Elytrigia riparia (Scribn. & J.G. Sm.) Beetle -- not accepted
  Elytrigia smithii var. molle (Scribn. & J.G. Sm.) Beetle -- not accepted
  Elytrigia smithii var. mollis (Scribn. & J.G. Sm.) Beetle -- not accepted
  Epicampes anomala Scribn. ex Beal -- not accepted
  Epicampes distichophylla var. mutica Scribn. ex Beal -- not accepted
  Epicampes ligulata Scribn. ex Vasey -- not accepted
  Epicampes mexicana (Scribn.) M.E. Jones -- not accepted
  Epicampes stricta var. mutica (Scribn. ex Beal) M.E. Jones -- not accepted
  Eragrostis caroliniana (Biehler) Scribn. -- not accepted
  Eragrostis erosa Scribn. ex Beal -- accepted -- Chihuahua lovegrass, Chihuahuan lovegrass
  Eragrostis lutescens Scribn. -- accepted -- sixweeks lovegrass
  Eragrostis obtusiflora (E. Fourn.) Scribn. -- accepted -- alkali lovegrass
  Eragrostis plumbea Scribn. ex Beal -- accepted
  Eragrostis purshii var. delicatula Munro ex Scribn. -- not accepted
  Eragrostis pusilla Scribn. ex Beal -- not accepted
  Eragrostis refracta (Muhl. ex Elliott) Scribn. -- accepted -- coastal lovegrass
  Eragrostis rigida (Vasey) Scribn. -- not accepted
  Eragrostis simplex Scribn. -- not accepted
  Eragrostis viscosa Scribn. -- not accepted
  Eriochloa lemmonii Vasey & Scribn. -- accepted -- canyon cupgrass, southwest cupgrass
  Eriochloa lemmonii var. lemmonii Vasey & Scribn. -- not accepted
  Eriochloa nelsonii Scribn. & J.G. Sm. -- accepted
  Eriochloa nelsonii var. nelsonii Scribn. & J.G. Sm. -- accepted
  Festuca elmeri Scribn. & Merr. -- accepted -- coast fescue
  Festuca elmeri ssp. elmeri Scribn. & Merr. -- not accepted
  Festuca elmeri var. elmeri Scribn. & Merr. -- accepted
  Festuca kingii (S. Watson) Scribn. -- not accepted
  Festuca microstachys var. pauciflora Scribn. ex Beal -- not accepted
  Festuca microstachys var. pauciflora Scribn. -- not accepted
  Festuca prostrata Muhl. ex Scribn. & Merr. -- not accepted
  Festuca rubra ssp. secunda var. secunda (J. Presl) Scribn. -- not accepted -- red fescue
  Festuca rubra var. secunda (J. Presl) Scribn. -- not accepted
  Festuca subuliflora Scribn. -- accepted -- crinkleawn fescue
  Forasaccus ciliatus var. laeviglumis (Scribn. ex Shear) Lunell -- not accepted
  Forasaccus latiglumis (Scribn. ex Shear) Lunell -- not accepted
  Forasaccus pumpellianus (Scribn.) Lunell -- not accepted
  Fourniera Scribn. -- not accepted
  Fourniera mexicana Scribn. -- not accepted
  Glyceria canadensis var. laxa (Scribn.) Hitchc. -- accepted
  Glyceria canbyi Scribn. -- not accepted
  Glyceria flava Scribn. ex Farw. -- not accepted
  Glyceria laxa Scribn. ex E.L. Rand & Redfield -- not accepted -- limp mannagrass
  Glyceria striata f. stricta (Scribn.) B. Boivin -- not accepted
  Glyceria striata ssp. stricta (Scribn.) Hultén -- not accepted
  Glyceria striata var. stricta (Scribn.) Fernald -- not accepted -- fowl mannagrass
  Glyceria X laxa (Scribn.) Scribn. -- not accepted
  Gouinia mexicana (Scribn.) Vasey -- accepted
  Gouinia virgata (J. Presl) Scribn. -- accepted
  Gouinia virgata var. virgata (J. Presl) Scribn. -- accepted
  Graphephorum brandegeei (Scribn.) Rydb. -- not accepted
  Graphephorum melicoides var. cooleyi (A. Gray) Scribn. -- not accepted
  Graphephorum pringlei Scribn. ex Beal -- not accepted
  Graphephorum shearii (Scribn.) Rydb. -- not accepted
  Helictotrichon hookeri (Scribn.) Henrard -- not accepted -- Hooker's alpine oat grass, spikeoat
  Helictotrichon hookeri ssp. hookeri (Scribn.) Henrard -- not accepted
  Helictotrichon mortonianum (Scribn.) Henrard -- accepted -- Morton's alpineoatgrass
  Hesperostipa comata ssp. intermedia (Scribn. & Tweedy) Barkworth -- accepted -- intermediate needle and thread, intermediate needleandthread, needleandthread
  Hilaria cenchroides var. ciliata Scribn. -- not accepted
  Hilaria ciliata (Scribn.) Nash -- accepted
  Hilaria ciliata (Scribn.) Sohns -- not accepted
  Hilaria rigida (Thurb.) Benth. ex Scribn. -- accepted
  Hordeum boreale Scribn. & J.G. Sm. -- not accepted
  Hordeum caespitosum Scribn. ex Pammel -- not accepted
  Hordeum depressum (Scribn. & J.G. Sm.) Rydb. -- accepted -- dwarf barley
  Hordeum jubatum var. caespitosum (Scribn.) Hitchc. -- not accepted
  Hordeum montanense Scribn. ex Beal -- not accepted
  Hordeum nodosum var. depressum Scribn. & J.G. Sm. -- not accepted
  Hordeum pammelii Scribn. & C.R. Ball -- not accepted
  Hordeum X montanense Scribn. ex Beal -- not accepted
  Ichnanthus apiculatus Scribn. -- not accepted
  Ichnanthus lanceolatus Scribn. & J.G. Sm. -- accepted
  Ixophorus pringlei Scribn. -- not accepted
  Ixophorus pringlei var. minor Scribn. -- not accepted
  Ixophorus pringlei var. pringlei Scribn. -- not accepted
  Jouvea pilosa (J. Presl) Scribn. -- accepted
  Koeleria arkansana Nutt. ex Scribn. -- not accepted
  Koeleria nitida var. arkansana Scribn. -- not accepted
  Leptochloa aquatica Scribn. & Merr. -- accepted
  Leptochloa dubia var. pringleana (Kuntze) Scribn. & Merr. -- not accepted
  Leptochloa filiformis var. pulchella (Scribn.) Beetle -- not accepted
  Leptochloa halei (Nash) Scribn. & Merr. -- not accepted
  Leptochloa mexicana Scribn. -- not accepted
  Leptochloa mucronata var. pulchella Scribn. -- not accepted
  Leptochloa palmeri Vasey ex Scribn. -- not accepted
  Leptochloa pilosa Scribn. -- not accepted
  Leptochloa spicata (Nees) Scribn. -- not accepted
  Leptochloa viscida (Scribn.) Beal -- accepted -- sticky sprangletop
  Leymus ambiguus (Vasey & Scribn.) D.R. Dewey -- accepted -- Colorado wildrye
  Leymus arenicola (Scribn. & J.G. Sm.) Pilg. -- not accepted
  Leymus cinereus (Scribn. & Merr.) Á. Löve -- accepted -- basin wildrye
  Leymus flavescens (Scribn. & J.G. Sm.) Pilg. -- accepted -- yellow wildrye
  Leymus innovatus ssp. ambiguus (Vasey & Scribn.) Á. Löve -- not accepted
  Leymus mollis ssp. villosissimus (Scribn.) Á. Löve & D. Löve -- accepted
  Leymus mollis ssp. villosissimus (Scribn.) Á. Löve -- not accepted -- American dunegrass
  Leymus simplex (Scribn. & T.A. Williams) D.R. Dewey -- accepted -- alkali wildrye, bullgrass
  Leymus simplex var. luxurians (Scribn. & T.A. Williams) Beetle -- accepted
  Leymus simplex var. simplex (Scribn. & T.A. Williams) D.R. Dewey -- accepted
  Leymus triticoides ssp. simplex (Scribn. & T.A. Williams) Á. Löve -- not accepted
  Leymus villosissimus (Scribn.) Tzvelev -- not accepted
  Limnodea arkansana var. pilosa (Trin.) Scribn. -- not accepted
  Lycurus phleoides var. brevifolius Scribn. ex Beal -- not accepted
  Manisuris rugosa var. chapmanii (Hack.) Scribn. -- not accepted
  Manisuris tessellata (Steud.) Scribn. -- not accepted
  Manisuris tessellata var. areolata (Hack.) Scribn. -- not accepted
  Melica anomala Scribn. ex Beal -- not accepted
  Melica bromoides var. howellii Scribn. -- not accepted
  Melica bulbosa var. spectabilis (Scribn.) B. Boivin -- not accepted
  Melica californica Scribn. -- accepted -- California melicgrass
  Melica californica var. californica Scribn. -- accepted -- California melicgrass
  Melica cepacea (Phil.) Scribn. -- accepted
  Melica diffusa var. nitens Scribn. -- not accepted
  Melica frutescens Scribn. -- accepted -- woody melic, woody melicgrass
  Melica imperfecta var. minor Scribn. -- not accepted
  Melica imperfecta var. pubens Scribn. -- not accepted
  Melica imperfecta var. sesquiflora Torr. ex Scribn. -- not accepted
  Melica longiligula Scribn. & Kearney -- not accepted
  Melica nitens Nutt. ex Scribn. -- not accepted
  Melica nitens (Scribn.) Nutt. ex Piper -- accepted -- shining oniongrass, threeflower melic, threeflower melicgrass
  Melica pammelii Scribn. -- not accepted
  Melica parviflora (Porter) Scribn. -- not accepted
  Melica poaeoides Bol. ex Scribn. -- not accepted
  Melica porteri Scribn. -- accepted -- Porter melic, Porter's melicgrass
  Melica porteri var. porteri Scribn. -- accepted -- Porter melicgrass, Porter's melicgrass
  Melica scabrata Scribn. ex Piper -- not accepted
  Melica spectabilis Scribn. -- accepted -- purple oniongrass
  Melica subulata (Griseb.) Scribn. -- accepted -- Alaska oniongrass
  Melica subulata var. pammelii (Scribn.) C.L. Hitchc. -- accepted -- Pammel's oniongrass
  Melica subulata var. subulata (Griseb.) Scribn. -- accepted -- Alaska oniongrass
  Melica torreyana Scribn. -- accepted -- Torrey's melicgrass
  Melica X curtisetosa (Scribn.) R.W. Pohl -- not accepted
  Merathrepta americana (Scribn.) Piper -- not accepted
  Merathrepta parryi (Scribn.) A. Heller -- not accepted
  Merathrepta thermale (Scribn.) A. Heller -- not accepted
  Metcalfia mexicana (Scribn.) Conert -- accepted
  Muhlenbergia arizonica Scribn. -- accepted -- Arizona muhly
  Muhlenbergia articulata Scribn. -- accepted
  Muhlenbergia brevifolia Scribn. ex Beal -- accepted
  Muhlenbergia brevigluma (Scribn.) Columbus -- accepted
  Muhlenbergia buckleyana Scribn. -- not accepted
  Muhlenbergia commutata (Scribn.) Bush -- not accepted
  Muhlenbergia curtifolia Scribn. -- accepted -- low muhly, Utah muhly
  Muhlenbergia curtifolia ssp. curtifolia Scribn. -- not accepted
  Muhlenbergia curtifolia ssp. griffithsii Scribn. -- not accepted
  Muhlenbergia curtisetosa (Scribn.) Bush -- not accepted
  Muhlenbergia densiflora Scribn. & Merr. -- not accepted
  Muhlenbergia depauperata Scribn. -- accepted -- sixweeks muhly
  Muhlenbergia diffusa var. attenuata (Scribn.) Farw. -- not accepted
  Muhlenbergia distichophylla var. mutica Scribn. ex Urbina -- not accepted
  Muhlenbergia dumosa Scribn. ex Vasey -- accepted -- bamboo muhly
  Muhlenbergia dumosa var. minor Scribn. ex Beal -- not accepted
  Muhlenbergia elongata Scribn. ex Beal -- accepted -- sycamore muhly
  Muhlenbergia enervis (Scribn. ex Beal) Hitchc. -- not accepted
  Muhlenbergia flaviseta Scribn. -- accepted
  Muhlenbergia foliosa ssp. ambigua (Torr.) Scribn. -- not accepted
  Muhlenbergia foliosa ssp. setiglumis (S. Watson) Scribn. -- not accepted
  Muhlenbergia frondosa f. commutata (Scribn.) Fernald -- accepted
  Muhlenbergia glabriflora Scribn. -- not accepted -- inland muhly
  Muhlenbergia glabrifloris Scribn. -- accepted
  Muhlenbergia gracilis var. enervis Scribn. ex Beal -- not accepted
  Muhlenbergia laxiflora Scribn. -- not accepted
  Muhlenbergia lemmonii Scribn. -- not accepted
  Muhlenbergia ligulata (E. Fourn.) Scribn. & Merr. -- accepted
  Muhlenbergia mexicana f. commutata (Scribn.) Wiegand -- not accepted
  Muhlenbergia mexicana ssp. commutata Scribn. -- not accepted
  Muhlenbergia mexicana var. commutata (Scribn.) Farw. -- not accepted
  Muhlenbergia mexicana var. filiformis (Willd.) Scribn. -- not accepted
  Muhlenbergia mexicana var. filiformis (Torr.) Scribn. -- accepted
  Muhlenbergia nebulosa Scribn. ex Beal -- not accepted
  Muhlenbergia palustris Scribn. -- not accepted
  Muhlenbergia polycaulis Scribn. -- accepted -- cliff muhly
  Muhlenbergia porteri Scribn. ex Beal -- accepted -- bush muhly
  Muhlenbergia pringlei (Scribn.) Scribn. -- not accepted
  Muhlenbergia pulcherrima Scribn. ex Beal -- not accepted
  Muhlenbergia racemosa ssp. violacea Scribn. -- not accepted
  Muhlenbergia reverchonii Vasey & Scribn. -- accepted -- seep muhly
  Muhlenbergia schaffneri var. longiseta Scribn. -- not accepted
  Muhlenbergia schreberi ssp. curtisetosa Scribn. -- not accepted
  Muhlenbergia schreberi ssp. palustris (Scribn.) Scribn. -- not accepted
  Muhlenbergia schreberi var. curtisetosa (Scribn.) Steyerm. & C. Kucera -- not accepted
  Muhlenbergia schreberi var. palustris (Scribn.) Scribn. ex B.L. Rob. -- not accepted
  Muhlenbergia seatonii Scribn. -- accepted
  Muhlenbergia simplex (Scribn.) Rydb. -- not accepted
  Muhlenbergia sobolifera f. setigera (Scribn.) Deam -- not accepted
  Muhlenbergia sobolifera ssp. setigera Scribn. -- not accepted
  Muhlenbergia sobolifera var. setigera (Scribn.) Hitchc. & Chase -- not accepted
  Muhlenbergia strictior Scribn. ex Beal -- accepted
  Muhlenbergia sylvatica f. attenuata (Scribn.) E.J. Palmer & Steyerm. -- not accepted
  Muhlenbergia sylvatica var. gracilis Scribn. -- not accepted
  Muhlenbergia sylvatica var. pringlei Scribn. -- not accepted
  Muhlenbergia tenuiflora ssp. variabilis Scribn. -- not accepted
  Muhlenbergia tenuiflora var. variabilis (Scribn.) R.W. Pohl -- not accepted -- slender muhly
  Muhlenbergia thurberi (Scribn.) Rydb. -- accepted -- Thurber muhly, Thurber's muhly
  Muhlenbergia umbrosa Scribn. -- not accepted
  Muhlenbergia umbrosa f. attenuata (Scribn.) Deam -- not accepted
  Muhlenbergia umbrosa ssp. attenuata Scribn. -- not accepted
  Muhlenbergia vaseyana Scribn. -- not accepted
  Muhlenbergia X curtisetosa (Scribn.) Bush (pro sp.) -- accepted -- Illinois nimblewill
  Nazia aliena (Spreng.) Scribn. -- not accepted
  Nazia occidentalis (Nees) Scribn. -- not accepted
  Nazia racemosa var. aliena (Spreng.) Scribn. & J.G. Sm. -- not accepted
  Ocellochloa biglandularis (Scribn. & J. G. Sm.) Zuloaga & Morrone -- accepted
  Ochellochloa biglandularis (Scribn. & J. G. Sm.) Zuloaga & Morrone -- not accepted
  Oryzopsis macounii (Scribn.) Beal -- not accepted
  Oryzopsis pringlei Scribn. ex Beal -- not accepted
  Oryzopsis pubiflora (Trin. & Rupr.) Scribn. -- not accepted
  Paneion longiligulum (Scribn. & T.A. Williams) Lunell -- not accepted
  Panicularia angustata (R. Br.) Scribn. -- not accepted
  Panicularia distans var. airoides (Nutt.) Scribn. -- not accepted
  Panicularia laxa Scribn. -- not accepted
  Panicularia maritima (Huds.) Scribn. -- not accepted
  Panicularia nervata f. stricta (Scribn.) House -- not accepted
  Panicularia nervata var. parviglumis Scribn. & Merr. -- not accepted
  Panicularia nervata var. stricta (Scribn.) Scribn. ex Hitchc. -- not accepted
  Panicum aciculare var. ovinum (Scribn. & J.G. Sm.) Beetle -- not accepted
  Panicum acuminatum var. columbianum (Scribn.) Lelong -- not accepted
  Panicum acuminatum var. implicatum (Scribn.) Beetle -- not accepted
  Panicum acuminatum var. implicatum (Scribn.) C.F. Reed -- not accepted
  Panicum acuminatum var. thurowii (Scribn. & J.G. Sm.) C.F. Reed -- not accepted
  Panicum acuminatum var. wrightianum (Scribn.) C.F. Reed -- not accepted
  Panicum agrostoides var. elongatum Scribn. -- not accepted
  Panicum albomaculatum Scribn. -- not accepted
  Panicum amaroides Scribn. & Merr. -- not accepted
  Panicum amarum var. minus Vasey & Scribn. -- not accepted
  Panicum arizonicum Scribn. & Merr. -- not accepted
  Panicum arizonicum var. arizonicum Scribn. & Merr. -- not accepted
  Panicum arizonicum var. laeviglume Scribn. & Merr. -- not accepted
  Panicum arizonicum var. majus (Vasey) Scribn. & Merr. -- not accepted
  Panicum arizonicum var. tenue Scribn. & Merr. -- not accepted
  Panicum aureum Muhl. ex Scribn. & Merr. -- not accepted
  Panicum badium Scribn. & Merr. -- not accepted
  Panicum baldwinii Nutt. ex Scribn. -- not accepted
  Panicum bartowense Scribn. & Merr. -- not accepted
  Panicum biglandulare Scribn. & J.G. Sm. -- not accepted
  Panicum capillare var. brevifolium Vasey ex Scribn. -- not accepted
  Panicum capillare var. geniculatum Scribn. -- not accepted
  Panicum capillare var. vulgare Scribn. -- not accepted
  Panicum caricifolium Scribn. ex Ashe -- not accepted
  Panicum cirrhosum (E. Fourn.) Scribn. & Merr. -- not accepted
  Panicum columbianum Scribn. -- not accepted
  Panicum columbianum var. columbianum Scribn. -- not accepted
  Panicum combsii Scribn. & C.R. Ball -- not accepted
  Panicum commutatum var. latifolium Scribn. -- not accepted
  Panicum dichotomiflorum ssp. bartowense (Scribn. & Merr.) Freckmann & Lelong -- accepted
  Panicum dichotomiflorum var. bartowense (Scribn. & Merr.) Fernald -- not accepted -- fall panicgrass, fall panicum, western witchgrass
  Panicum dichotomum var. nitidum Chapm. ex Scribn. -- not accepted
  Panicum equilaterale Scribn. -- not accepted
  Panicum fasciculatum var. dissitiflorum Vasey ex Scribn. & Merr. -- not accepted
  Panicum filipes Scribn. -- not accepted
  Panicum flexile (Gatt.) Scribn. -- accepted -- wiry panic grass, wiry panicgrass, wiry witch grass
  Panicum flexuosum Muhl. ex Scribn. & Merr. -- not accepted
  Panicum funstonii Scribn. & Merr. -- not accepted
  Panicum fuscum var. reticulatum (Torr.) Scribn. & Merr. -- not accepted
  Panicum glaberrimum Elliott ex Scribn. & Merr. -- not accepted
  Panicum gracillimum Scribn. -- not accepted
  Panicum hallii ssp. filipes (Scribn.) Freckmann & Lelong -- not accepted
  Panicum hallii var. filipes (Scribn.) F.R. Waller -- accepted -- filly panicum, Hall's panicgrass
  Panicum hians var. purpurascens Scribn. -- not accepted
  Panicum implicatum Scribn. -- not accepted
  Panicum inflatum Scribn. & J.G. Sm. -- not accepted
  Panicum jurgensenii (E. Fourn.) Scribn. & Merr. -- not accepted
  Panicum lancearium var. patulum (Scribn. & Merr.) Fernald -- not accepted
  Panicum lanuginosum var. implicatum (Scribn.) Fernald -- not accepted
  Panicum leibergii (Vasey) Scribn. -- not accepted
  Panicum leibergii Scribn. -- not accepted
  Panicum leibergii var. leibergii (Vasey) Scribn. -- not accepted
  Panicum leucocomum (Nash) Scribn. -- not accepted
  Panicum lindheimeri var. implicatum (Scribn.) Fernald -- not accepted
  Panicum linearifolium Scribn. -- not accepted
  Panicum linearifolium var. linearifolium Scribn. -- not accepted
  Panicum linearifolium var. werneri (Scribn.) Fernald -- not accepted
  Panicum longifolium var. combsii (Scribn. & C.R. Ball) Fernald -- not accepted
  Panicum longipedunculatum Scribn. -- not accepted
  Panicum mexicanum Scribn. & Merr. -- not accepted
  Panicum microcarpon var. isophyllum Scribn. -- not accepted
  Panicum minimum (Engelm. ex Gatt.) Scribn. & Merr. -- not accepted
  Panicum multirameum Scribn. -- not accepted
  Panicum mutabile Scribn. & J.G. Sm. ex Nash -- not accepted
  Panicum nashianum Scribn. -- not accepted
  Panicum nashianum var. nashianum Scribn. -- not accepted
  Panicum nashianum var. patulum Scribn. & Merr. -- not accepted
  Panicum nitidum var. octonodum (J.G. Sm.) Scribn. & Merr. -- not accepted
  Panicum nitidum var. pubescens Scribn. ex Kearney -- not accepted
  Panicum occidentale Scribn. -- not accepted
  Panicum octonodum Scribn. & J.G. Sm. -- not accepted
  Panicum ovinum Scribn. & J.G. Sm. -- not accepted
  Panicum parvulum Muhl. ex Scribn. & Merr. -- not accepted
  Panicum patulum (Scribn. & Merr.) Hitchc. -- not accepted
  Panicum pilosum var. macranthum Scribn. -- not accepted
  Panicum portoricense var. nashianum (Scribn.) Lelong -- not accepted
  Panicum pungens Muhl. ex Scribn. & Merr. -- not accepted
  Panicum ramisetum Scribn. -- not accepted
  Panicum ravenelii Scribn. & Merr. -- not accepted
  Panicum rigidulum ssp. combsii (Scribn. & C.R. Ball) Freckmann & Lelong -- not accepted
  Panicum rigidulum ssp. elongatum (Scribn.) Freckmann & Lelong -- not accepted
  Panicum rigidulum var. combsii (Scribn. & C.R. Ball) Lelong -- not accepted -- Combs' panicgrass
  Panicum rigidulum var. elongatum (Scribn.) Lelong -- not accepted -- redtop panicgrass
  Panicum sabulorum var. patulum (Scribn. & Merr.) C.F. Reed -- not accepted
  Panicum scoparium var. genuinum Scribn. -- not accepted
  Panicum scoparium var. minus Scribn. -- not accepted
  Panicum scoparium var. pauciflorum Scribn. -- not accepted
  Panicum scribnerianum var. leibergii (Vasey) Scribn. -- not accepted
  Panicum shastense Scribn. & Merr. -- not accepted
  Panicum soboliferum Tuck. ex Scribn. & Merr. -- not accepted
  Panicum sphaerocarpon ssp. inflatum (Scribn. & J.G. Sm.) Hitchc. -- not accepted
  Panicum sphaerocarpon var. inflatum (Scribn. & J.G. Sm.) Hitchc. -- not accepted
  Panicum sphaerocarpon var. isophyllum (Scribn.) Wipff & S.D. Jones -- not accepted
  Panicum sphaerocarpon var. isophyllum (Scribn.) Angelo -- not accepted
  Panicum sphaerocarpon var. isophyllum (Scribn.) C. F. Reed -- not accepted
  Panicum strictum subvar. werneri (Scribn.) Farw. -- not accepted
  Panicum strictum var. linearifolium (Scribn.) Farw. -- not accepted
  Panicum subbarbulatum Scribn. & Merr. -- not accepted
  Panicum thurowii Scribn. & J.G. Sm. -- not accepted
  Panicum unciphyllum f. pilosum Scribn. & Merr. -- not accepted
  Panicum unciphyllum f. prostratum Scribn. & Merr. -- not accepted
  Panicum unciphyllum var. implicatum (Scribn.) Scribn. & Merr. -- not accepted
  Panicum unciphyllum var. meridionale (Ashe) Scribn. & Merr. -- not accepted
  Panicum unispicatum Scribn. & Merr. -- not accepted
  Panicum urvilleanum var. longiglume Scribn. -- not accepted
  Panicum utowanaeum Scribn. -- not accepted
  Panicum vaseyanum Scribn. ex Beal -- accepted
  Panicum viscidellum Scribn. -- not accepted
  Panicum werneri Scribn. -- not accepted
  Panicum wrightianum Scribn. -- not accepted
  Panicum X shastense Scribn. & Merr. -- not accepted
  Panicum xanthophysum f. amplifolium Scribn. -- not accepted
  Panicum xanthospermum Scribn. & C. Mohr -- not accepted
  Pappophorum apertum Munro ex Scribn. -- not accepted
  Pappophorum apertum var. vaginatum (Buckley) Scribn. ex L.H. Dewey -- not accepted
  Paspalidium utowanaenum (Scribn.) Davidse & R.W. Pohl -- not accepted
  Paspalum hallii Vasey & Scribn. -- not accepted
  Paspalum laeve var. pilosum Scribn. -- not accepted
  Paspalum laeviglume Scribn. ex Nash -- not accepted
  Paspalum paniculatum var. minus Scribn. -- not accepted
  Paspalum paspalodes (Michx.) Scribn. -- not accepted
  Paspalum paspalodes var. paspalodes (Michx.) Scribn. -- not accepted
  Paspalum paspalodes var. villosum (Vasey) Scribn. & C.R. Ball -- not accepted
  Paspalum paspaloides (Michx.) Scribn. -- not accepted
  Paspalum prostratum Scribn. & Merr. -- accepted
  Paspalum prostratum var. pygmaeum Scribn. & Merr. -- not accepted
  Paspalum pubiflorum var. glabrum Vasey ex Scribn. -- accepted -- hairyseed paspalum
  Paspalum pubiflorum var. glaucum Scribn. -- not accepted
  Paspalum remotum var. glaucum Scribn. ex Vasey -- not accepted
  Paspalum rosei Scribn. & Merr. -- not accepted
  Paspalum scabrum Scribn. -- not accepted
  Paspalum schaffneri (E. Fourn.) Scribn. -- not accepted
  Paspalum unispicatum (Scribn. & Merr.) Nash -- accepted -- onespike paspalum
  Paspalum vaseyanum Scribn. -- not accepted
  Pennisetum crinitum Scribn. ex Beal -- not accepted
  Pentameris americana (Scribn.) A. Nelson & J.F. Macbr. -- not accepted
  Pentameris epilis (Scribn.) A. Nelson & J.F. Macbr. -- not accepted
  Pentameris thermale (Scribn.) A. Nelson & J.F. Macbr. -- not accepted
  Peyritschia pringlei (Scribn.) S.D. Koch -- accepted
  Phippsia langeana ssp. alaskana (Scribn. & Merr.) Á. Löve & D. Löve -- not accepted
  Phippsia wrightii (Scribn. & Merr.) Á. Löve & D. Löve -- not accepted
  Poa acuminata Scribn. ex Beal -- not accepted
  Poa acutiglumis Scribn. -- not accepted
  Poa alpina var. minor Scribn. ex Beal -- not accepted
  Poa alsodes var. wolfii (Scribn.) Vasey ex Scribn. -- not accepted
  Poa annua var. stricta Vasey ex Scribn. -- not accepted
  Poa aperta Scribn. & Merr. -- not accepted
  Poa arctica ssp. aperta (Scribn. & Merr.) Soreng -- accepted -- arctic bluegrass
  Poa arctica ssp. lanata (Scribn. & Merr.) Soreng -- accepted -- arctic bluegrass
  Poa arctica var. lanata (Scribn. & Merr.) B. Boivin -- not accepted
  Poa atropurpurea Scribn. -- accepted -- San Bernardino bluegrass
  Poa bigelovii Vasey & Scribn. -- accepted -- Bigelow bluegrass, Bigelow's bluegrass
  Poa bolanderi var. howellii (Vasey & Scribn.) M.E. Jones -- not accepted
  Poa brandegi Scribn. ex Beal -- not accepted
  Poa brevipaniculata Scribn. & T.A. Williams -- not accepted
  Poa californica (Munro ex Thurb.) Scribn. -- not accepted
  Poa canbyi (Scribn.) Piper -- not accepted
  Poa canbyi (Scribn.) Howell -- not accepted
  Poa candyi (Scribn.) T. Howell -- not accepted
  Poa capillarifolia Scribn. & T.A. Williams -- not accepted
  Poa capillaris Scribn. -- not accepted
  Poa chapmaniana Scribn. -- accepted -- Chapman's bluegrass
  Poa curtifolia Scribn. -- accepted -- little mountain bluegrass
  Poa cusickii ssp. epilis (Scribn.) W.A. Weber -- accepted -- Cusick's bluegrass
  Poa cusickii var. epilis (Scribn.) C.L. Hitchc. -- not accepted
  Poa cuspidata Vasey ex Scribn. -- not accepted
  Poa epilis Scribn. -- not accepted
  Poa fendleriana ssp. longiligula (Scribn. & T.A. Williams) Soreng -- accepted -- muttongrass
  Poa fendleriana var. juncifolia (Scribn.) M.E. Jones -- not accepted
  Poa fendleriana var. longiligula (Scribn. & T.A. Williams) Gould -- not accepted
  Poa fendleriana var. spicata (Vasey) Scribn. -- not accepted
  Poa glacialis Scribn. & Merr. -- not accepted
  Poa glaucifolia Scribn. & T.A. Williams -- not accepted
  Poa gracillima var. saxatilis (Scribn. & T.A. Williams) Hack. -- not accepted
  Poa gracillima var. vaseyochloa (Scribn.) M.E. Jones -- not accepted
  Poa hansenii Scribn. -- not accepted
  Poa howellii Vasey & Scribn. -- accepted -- Howell's bluegrass
  Poa incurva Scribn. & T.A. Williams -- not accepted
  Poa invaginata Scribn. & T.A. Williams -- not accepted
  Poa juncifolia Scribn. -- not accepted
  Poa juncifolia ssp. juncifolia Scribn. -- not accepted
  Poa laevigata Scribn. -- not accepted
  Poa lanata Scribn. & Merr. -- not accepted
  Poa lanata var. lanata Scribn. & Merr. -- not accepted -- wool bluegrass
  Poa leckenbyi Scribn. -- not accepted
  Poa leibergii Scribn. -- accepted -- Leiberg's bluegrass
  Poa leptocoma ssp. elatior Scribn. & Merr. -- not accepted
  Poa leptocoma ssp. paucispicula (Scribn. & Merr.) Tzvelev -- not accepted -- Alaska bluegrass
  Poa leptocoma var. paucispicula (Scribn. & Merr.) C.L. Hitchc. -- not accepted
  Poa leptocoma var. reflexa (Vasey & Scribn.) M.E. Jones -- not accepted
  Poa limosa Scribn. & T.A. Williams -- not accepted
  Poa longepedunculata Scribn. -- not accepted
  Poa longiligula Scribn. & T.A. Williams -- not accepted
  Poa nevadensis Vasey ex Scribn. -- not accepted
  Poa nevadensis var. juncifolia (Scribn.) Beetle -- not accepted
  Poa nevadensis var. laevigata (Scribn.) M.E. Jones -- not accepted
  Poa nevadensis var. leckenbyi (Scribn.) M.E. Jones -- not accepted
  Poa nudata Scribn. -- not accepted
  Poa paucispicula Scribn. & Merr. -- accepted -- Alaska bluegrass
  Poa planifolia Scribn. & T.A. Williams -- not accepted
  Poa pratensis var. pseudopratensis (Scribn. & Rydb.) M.E. Jones -- not accepted
  Poa pringlei Scribn. -- accepted -- Pringle's bluegrass
  Poa pringlei var. hansenii (Scribn.) Smiley -- not accepted
  Poa pseudopratensis Scribn. & Rydb. -- not accepted
  Poa purpurascens var. epilis (Scribn.) M.E. Jones -- not accepted
  Poa reflexa Vasey & Scribn. -- accepted -- nodding bluegrass
  Poa reflexa Elliott ex Scribn. & Merr. -- not accepted
  Poa rigens Trin. ex Scribn. & Merr. -- not accepted
  Poa saxatilis Scribn. & T.A. Williams -- not accepted
  Poa secunda ssp. juncifolia (Scribn.) Soreng -- accepted
  Poa secunda var. incurva (Scribn. & T.A. Williams) Beetle -- not accepted
  Poa stricta var. uniflora Muhl. ex Scribn. & Merr. -- not accepted
  Poa subaristata Scribn. -- not accepted
  Poa subaristata Scribn. ex Beal -- not accepted
  Poa tenerrima Scribn. -- accepted -- delicate bluegrass
  Poa tenuifolia var. scabra Vasey ex Scribn. -- not accepted
  Poa trinii Scribn. & Merr. -- not accepted
  Poa trivialis var. filiculmis Scribn. ex Beal -- not accepted
  Poa turneri Scribn. -- not accepted
  Poa unilateralis Scribn. ex Vasey -- accepted -- San Francisco bluegrass
  Poa unilateralis ssp. unilateralis Scribn. ex Vasey -- accepted
  Poa vaseyana Scribn. ex Beal -- not accepted
  Poa vaseyochloa Scribn. -- not accepted
  Poa wheeleri var. vaseyana (Scribn. ex Beal) Will. & Pammel -- not accepted
  Poa wolfii Scribn. -- accepted -- Wolf's bluegrass
  Poa wrightii (Scribn. & Merr.) Hitchc. -- not accepted
  Poa wyomingensis Scribn. -- not accepted
  Poa X limosa Scribn. & T.A. Williams -- accepted -- Lassen County bluegrass
  Podagrostis (Griseb.) Scribn. & Merr. -- accepted
  Podagrostis aequivalvis (Trin.) Scribn. & Merr. -- accepted
  Podagrostris (Griseb.) Scribn. & Merr. -- not accepted
  Podagrostris aequivalis (Trin.) Scribn. & Merr. -- not accepted
  Podosemum porteri (Scribn. ex Beal) Bush -- not accepted
  Podosemum reverchonii (Vasey & Scribn.) Bush -- not accepted
  Pringleochloa Scribn. -- not accepted
  Pringleochloa stolonifera (E. Fourn.) Scribn. -- not accepted
  Pseudoroegneria arizonica (Scribn. & J.G. Sm.) Á. Löve -- not accepted
  Pseudoroegneria spicata f. inermis (Scribn. & J.G. Sm.) Barkworth -- accepted
  Pseudoroegneria spicata ssp. inermis (Scribn. & J.G. Sm.) Á. Löve -- not accepted -- beardless wheatgrass
  Puccinellia alaskana Scribn. & Merr. -- not accepted
  Puccinellia canbyi (Scribn.) Ponert -- not accepted
  Puccinellia langeana ssp. alaskana (Scribn. & Merr.) T.J. Sřrensen ex Hultén -- not accepted
  Puccinellia langeana var. alaskana (Scribn. & Merr.) T.J. Sřrensen ex Hultén -- not accepted
  Puccinellia lemmonii (Vasey) Scribn. -- accepted -- Lemmon's alkaligrass
  Puccinellia nevadensis (Vasey ex Scribn.) Ponert -- not accepted
  Puccinellia paupercula var. alaskana (Scribn. & Merr.) Fernald & Weath. -- not accepted
  Puccinellia phryganodes (Trin.) Scribn. & Merr. -- accepted -- creeping alkaligrass
  Puccinellia phryganodes ssp. phryganodes (Trin.) Scribn. & Merr. -- accepted -- creeping alkaligrass
  Puccinellia pringlei (Scribn.) Ponert -- not accepted
  Puccinellia simplex Scribn. -- accepted -- California alkaligrass
  Puccinellia tenella ssp. alaskana (Scribn. & Merr.) Tzvelev -- not accepted -- tundra alkaligrass
  Puccinellia tenuiflora (Griseb.) Scribn. & Merr. -- accepted
  Puccinellia unilateralis (Scribn. ex Vasey) Ponert -- not accepted
  Puccinellia vahliana (Liebm.) Scribn. & Merr. -- accepted -- Vahl's alkaligrass
  Puccinellia wrightii (Scribn. & Merr.) Tzvelev -- accepted -- Wright's alkaligrass
  Puccinellia X phryganodes Scribn. & Merr. -- not accepted
  Reboulea obtusata var. pubescens (Scribn. & Merr.) Farw. -- not accepted
  Roegneria alaskana (Scribn. & Merr.) V.N. Vassil. -- not accepted
  Roegneria albicans (Scribn. & J.G. Sm.) Beetle -- not accepted
  Roegneria albicans var. albicans (Scribn. & J.G. Sm.) Beetle -- not accepted
  Roegneria albicans var. griffithii (Scribn. & J.G. Sm. ex Piper) Beetle -- not accepted
  Roegneria albicans var. griffithsii (Scribn. & J.G. Sm. ex Piper) Beetle -- not accepted
  Roegneria latiglumis (Scribn. & J.G. Sm.) Nevski -- not accepted
  Roegneria novae-angliae (Scribn.) Jurtzev & V.V. Petrovsky -- not accepted
  Roegneria spicata f. inerme (Scribn. & J.G. Sm.) Beetle -- not accepted
  Savastana alpina (Sw. ex Willd.) Scribn. -- not accepted
  Savastana odorata (L.) Scribn. -- not accepted
  Savastana pauciflora (R. Br.) Scribn. & Merr. -- not accepted
  Schizachyrium scoparium var. polycladum (Scribn. & C.R. Ball) C.F. Reed -- not accepted
  Senites pringlei (Scribn.) Hitchc. -- not accepted
  Senites smilacifolia (Scribn.) Hitchc. -- not accepted
  Setaria brevispica (Scribn. & Merr.) K. Schum. -- not accepted
  Setaria gibbosa (Scribn. & Merr.) Schum. -- not accepted
  Setaria hispida (Scribn. & Merr.) K. Schum. -- not accepted
  Setaria latifolia (Scribn.) R.A.W. Herrm. -- accepted
  Setaria leucopila (Scribn. & Merr.) K. Schum. -- accepted -- bristlegrass, Plains bristlegrass, streambed bristlegrass, yellow bristlegrass, yellow foxtail
  Setaria macrosperma (Scribn. & Merr.) K. Schum. -- accepted -- coral bristlegrass
  Setaria mexicana W. Schaffn. ex Scribn. & Merr. -- not accepted
  Setaria ramiseta (Scribn.) Pilg. -- not accepted -- bristle panicum, Rio Grande bristlegrass
  Setaria reverchonii ssp. ramiseta (Scribn.) W.E. Fox -- accepted
  Setaria rigida (Scribn. & Merr.) K. Schum. -- not accepted
  Setaria utowanaea (Scribn.) Pilg. -- accepted -- Caribbean bristlegrass
  Setaria utowanaea var. utowanaea (Scribn.) Pilg. -- accepted
  Setaria villosissima (Scribn. & Merr.) K. Schum. -- accepted -- hairy bristlegrass, hairyleaf bristlegrass
  Setariopsis Scribn. -- accepted
  Setariopsis auriculata (E. Fourn.) Scribn. -- accepted
  Setariopsis latiglumis (Vasey) Scribn. -- accepted
  Sieglingia eragrostoides (Vasey & Scribn.) L.H. Dewey -- not accepted
  Sieglingia sesleroides (Michx.) Scribn. -- not accepted
  Sitanion hansenii (Scribn.) J.G. Sm. -- not accepted
  Sitanion marginatum Scribn. & Merr. -- not accepted
  Sitanion X hansenii (Scribn.) J.G. Smith (pro sp.) -- not accepted
  Soderstromia mexicana (Scribn.) C.V. Morton -- not accepted
  Sorengia longifolia ssp. combsii (Scribner & C.R. Ball) Zuloaga & Morrone -- not accepted
  Sorengia longifolia ssp. elongata (Scribn.) Zuloaga & Morrone -- not accepted
  Spartina stricta var. maritima (Walter) Scribn. -- not accepted
  Sphenopholis Scribn. -- accepted -- wedge grass, wedgegrass, wedgescale
  Sphenopholis aristata (Scribn. & Merr.) A. Heller -- not accepted
  Sphenopholis filiformis (Chapm.) Scribn. -- accepted -- longleaf wedgescale, wedgescale
  Sphenopholis hallii (Scribn.) Scribn. -- not accepted
  Sphenopholis interrupta (Buckley) Scribn. -- accepted
  Sphenopholis interrupta ssp. californica (Vasey) Scribn. -- accepted
  Sphenopholis interrupta ssp. interrupta (Buckley) Scribn. -- accepted
  Sphenopholis nitida (Biehler) Scribn. -- accepted -- shiny wedgescale
  Sphenopholis nitida ssp. glabra (Nash) Scribn. -- not accepted
  Sphenopholis nitida var. glabra (Nash) Scribn. ex B.L. Rob. -- not accepted
  Sphenopholis obtusata (Michx.) Scribn. -- accepted -- prairie wedgegrass, prairie wedgescale
  Sphenopholis obtusata f. obtusata (Michx.) Scribn. -- not accepted
  Sphenopholis obtusata ssp. lobata (Trin.) Scribn. -- not accepted
  Sphenopholis obtusata ssp. pubescens (Scribn. & Merr.) Scribn. -- not accepted
  Sphenopholis obtusata var. lobata (Trin.) Scribn. ex B.L. Rob. -- not accepted
  Sphenopholis obtusata var. obtusata (Michx.) Scribn. -- not accepted
  Sphenopholis obtusata var. pubescens (Scribn. & Merr.) Scribn. ex B.L. Rob. -- not accepted
  Sphenopholis pallens (Biehler) Scribn. -- not accepted
  Sphenopholis pallens ssp. major (Torr.) Scribn. -- not accepted
  Sphenopholis pallens var. longiflora (Vasey ex L.H. Dewey) Scribn. -- not accepted
  Sphenopholis pallens var. major (Torr.) Scribn. ex B.L. Rob. -- not accepted
  Sphenopholis palustris (Michx.) Scribn. -- not accepted
  Sphenopholis palustris ssp. flexuosa Scribn. -- not accepted
  Sphenopholis palustris var. flexuosa (Scribn.) Scribn. ex B.L. Rob. -- not accepted
  Sphenopholis pensylvanica var. flexuosa (Scribn.) F.T. Hubb. -- not accepted
  Sphenopholis pubescens (Scribn. & Merr.) A. Heller -- not accepted
  Sphenopholis X pallens (Biehler) Scribn. -- accepted -- sphenopholis
  Sporobolus airoides var. wrightii (Munro ex Scribn.) Gould -- not accepted
  Sporobolus aspericaulis Scribn. -- not accepted
  Sporobolus complanatus Scribn. ex Beal -- not accepted
  Sporobolus cryptandrus var. strictus Scribn. -- not accepted
  Sporobolus curtissii Small ex Scribn. -- not accepted -- Curtis' dropseed
  Sporobolus depauperatus (Torr. ex Hook.) Scribn. -- not accepted
  Sporobolus expansus Scribn. -- not accepted
  Sporobolus macrospermus Scribn. ex Beal -- accepted
  Sporobolus palmeri Scribn. -- accepted
  Sporobolus simplex Scribn. -- not accepted
  Sporobolus strictus (Scribn.) Merr. -- not accepted
  Sporobolus thurberi Scribn. -- not accepted
  Sporobolus uniflorus (Muhl.) Scribn. & Merr. -- not accepted
  Sporobolus utilis (Torr.) Scribn. -- not accepted
  Sporobolus vaginatus (Steud.) Scribn. -- not accepted
  Sporobolus vaginiflorus var. minor Scribn. ex Chapm. -- not accepted
  Sporobolus vaginiflorus var. neglectus (Nash) Scribn. -- not accepted
  Sporobolus wrightii Munro ex Scribn. -- accepted -- big sacaton, giant sacaton
  Stipa caduca (Beal) Scribn. -- not accepted
  Stipa columbiana var. nelsonii (Scribn.) H. St. John -- not accepted
  Stipa columbiana var. nelsonii (Scribn.) Hitchc. -- not accepted
  Stipa comata var. intermedia Scribn. & Tweedy -- not accepted
  Stipa elmeri Piper & Brodie ex Scribn. -- not accepted
  Stipa lemmonii (Vasey) Scribn. -- not accepted
  Stipa lemmonii var. jonesii Scribn. -- not accepted
  Stipa lemmonii var. lemmonii (Vasey) Scribn. -- not accepted
  Stipa macounii Scribn. -- not accepted
  Stipa minor (Vasey) Scribn. -- not accepted
  Stipa multinodis Scribn. ex Beal -- not accepted
  Stipa nelsonii Scribn. -- not accepted
  Stipa nelsonii ssp. nelsonii Scribn. -- not accepted -- Nelson's needlegrass
  Stipa nelsonii ssp. nelsonii var. nelsonii Scribn. -- not accepted -- Williams needlegrass
  Stipa nelsonii var. nelsonii Scribn. -- not accepted
  Stipa neomexicana (Thurb.) Scribn. -- not accepted
  Stipa occidentalis var. nelsonii (Scribn.) C.L. Hitchc. -- not accepted
  Stipa oregonensis Scribn. -- not accepted
  Stipa pringlei Scribn. ex Beal -- not accepted
  Stipa pringlei Scribn. ex Vasey -- not accepted
  Stipa robusta (Vasey) Scribn. -- not accepted
  Stipa spartea var. intermedia (Scribn. & Tweedy) B. Boivin -- not accepted
  Stipa spartea var. tweedyi (Scribn.) M.E. Jones -- not accepted
  Stipa tweedyi Scribn. -- not accepted
  Stipa vaseyi Scribn. -- not accepted
  Stipa williamsii Scribn. -- not accepted
  Syntherisma badia (Scribn. & Merr.) Chase -- not accepted
  Syntherisma fusca (J. Presl) Scribn. -- not accepted
  Syntherisma fuscescens (J. Presl) Scribn. -- not accepted
  Syntherisma gracillima (Scribn.) Nash -- not accepted
  Syntherisma pubescens (J. Presl) Scribn. -- not accepted
  Terrellia diversiglumis (Scribn. & C.R. Ball) Lunell -- not accepted
  Terrellia hirsutiglumis (Scribn.) Nevski -- not accepted
  Trachypogon secundus (J. Presl) Scribn. -- not accepted -- onesided crinkleawn
  Trichloris blanchardiana E. Fourn. ex Scribn. -- not accepted
  Trichloris mendocina f. blanchardiana (E. Fourn. ex Scribn.) Kurtz -- not accepted
  Tridens drummondii (Scribn. & Kearney) Nash ex Small -- not accepted
  Tridens eragrostoides (Vasey & Scribn.) Nash -- accepted -- lovegrass tridens
  Tridens flavus var. aristatus (Scribn. & C.R. Ball) Shinners -- not accepted
  Triniochloa micrantha (Scribn.) Hitchc. -- accepted
  Triodia drummondii Scribn. & Kearney -- not accepted
  Triodia elongata (Buckley) Scribn. -- not accepted
  Triodia eragrostoides Vasey & Scribn. -- not accepted
  Triodia flava var. aristata (Scribn. & C.R. Ball) Fernald & Griscom -- not accepted
  Triodia mutica (Torr.) Scribn. -- not accepted
  Triodia sesleroides var. aristata Scribn. & C.R. Ball -- not accepted
  Tripsacum pilosum Scribn. & Merr. -- accepted
  Tripsacum pilosum var. pilosum Scribn. & Merr. -- not accepted
  Trisetum altijugum (E. Fourn.) Scribn. -- not accepted
  Trisetum argenteum Scribn. -- not accepted
  Trisetum aristatum (Scribn. & Merr.) Nash -- not accepted
  Trisetum brandegei Scribn. -- not accepted
  Trisetum congdonii Scribn. & Merr. -- not accepted
  Trisetum deyeuxioides var. pubescens Scribn. ex Beal -- not accepted
  Trisetum filifolium Scribn. ex Beal -- accepted
  Trisetum filifolium var. aristatum Scribn. ex Beal -- accepted
  Trisetum filifolium var. filifolium Scribn. ex Beal -- accepted
  Trisetum hallii Scribn. -- not accepted
  Trisetum melicoides (Michx.) Scribn. -- not accepted -- purple false oat
  Trisetum melicoides ssp. cooleyi (A. Gray) Scribn. -- not accepted
  Trisetum melicoides var. melicoides (Michx.) Scribn. -- not accepted
  Trisetum montanum var. shearii (Scribn.) Louis-Marie -- not accepted -- Shear's trisetum
  Trisetum muticum (Bol.) Scribn. -- not accepted
  Trisetum nutkaensis (J. Presl) Scribner & Merr. ex Davy -- not accepted
  Trisetum pringlei (Scribn. ex Beal) Hitchc. -- accepted
  Trisetum rosei Scribn. & Merr. -- accepted
  Trisetum rosei f. tenerum (Scribn. & Merr.) Louis-Marie -- not accepted
  Trisetum rosei var. tenerum Scribn. & Merr. -- not accepted
  Trisetum shearii Scribn. -- not accepted
  Trisetum spicatum ssp. congdonii (Scribn. & Merr.) Hultén -- not accepted
  Trisetum spicatum var. congdonii (Scribn. & Merr.) Hitchc. -- not accepted
  Trisetum spicatum var. molle (Kunth) Scribn. & Merr. -- not accepted
  Trisetum wolfii ssp. muticum (Bol.) Scribn. -- not accepted
  Trisetum wolfii var. brandegei (Scribn.) Louis-Marie -- not accepted
  Tristachya avenacea (J. Presl) Scribn. & Merr. -- accepted
  Tristachya laxa Scribn. & Merr. -- accepted
  Triticum latiglume (Scribn. & J.G. Sm.) F. Herm. -- not accepted
  Triticum repens var. acutum Vasey ex Scribn. & J.G. Sm. -- not accepted
  Uniola longifolia Scribn. -- not accepted
  Urochloa arizonica (Scribn. & Merr.) Morrone & Zuloaga -- accepted -- Arizona signalgrass
  Vilfa filiculmis Thurb. ex Scribn. -- not accepted
  Vulpia microstachys var. pauciflora (Scribn. ex Beal) Lonard & Gould -- accepted -- Pacific fescue
  X Agrositanion saxicola (Scribn. & J.G. Sm.) Bowden -- not accepted
  X Elyhordeum montanense (Scribn. ex Beal) Bowden -- accepted -- mountain barley
  X Elymordeum montanense (Scribn. ex Beal) Bowden -- not accepted
  X Elysitanion hansenii (Scribn.) Bowden -- not accepted
  X Elytesion montanense (Scribn. ex Beal) Barkworth & D.R. Dewey -- not accepted
  X Pseudelymus saxicola (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey -- accepted -- foxtail wheatgrass, pseudelymus
  Zeia mollis (Scribn. & J.G. Sm.) Lunell -- not accepted
  Zeia occidentalis (Scribn.) Lunell -- not accepted
  Zeia pseudorepens (Scribn. & J.G. Sm.) Lunell -- not accepted
  Zeia riparia (Scribn. & J.G. Sm.) Lunell -- not accepted
  Zerna arctica (Shear ex Scribn. & Merr.) Tzvelev -- not accepted
  Zerna latiglumis (Scribn. ex Shear) Henrard -- not accepted
  Zerna pumpelliana (Scribn.) Tzvelev -- not accepted
  Zerna pumpelliana ssp. arctica (Shear ex Scribn. & Merr.) Tzvelev -- not accepted
  Zeugites americanus var. pringlei (Scribn.) McVaugh -- accepted
  Zeugites pringlei Scribn. -- not accepted
  Zeugites smilacifolius Scribn. -- accepted
   

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