Vascular Plants of Washington
Poaceae
Poaceae
Generated from PNW Herbaria database
November 28, 2020.
119 genus names
625 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)
Index to Genera:
A: Achnatherum, Acnatherum, Aegilops, Agropyron, Agrostis, Aira, Alopecurus, Ammophila, Anthoxanthum, Apera, Aristida, Arrhenatherum, Avena
C: Calamagrostis, Calamovilfa, Calotheca, Capillare, Cenchrus, Chasmanthium, Cinna, Coleanthus, Cortaderia, Corynephorus, Crypsis, Cynodon, Cynosurus
G: Glyceria, Graphephorum
K: Koeleria
N: Nassella, Nicoraepoa
O: Oryzopsis
P: Panicum, Parapholia, Parapholis, Pascopyrum, Paspalum, Pennisetum, Phalaris, Phleum, Phragmites, Piptatheropsis, Pleuropogon, Poa, Podagrostis, Polypogon, Polytrias, Psathyrostachys, Pseudelymus, Pseudoroegnaria, Pseudoroegneria, Pseudosasa, Puccinellia
R: Redfieldia, Rostraria
S: Sasa, Schedonorus, Schizachne, Schizachyrium, Sclerochloa, Scolochloa, Scribneria, Secale, Setaria, Sorghum, Spartina, Sphenopholis, Sporobolus, Stipa
Achnatherum contractum (ID; 1; 1992)
Achnatherum hendersonii (BLMMD, ID, OSC, UBC, WS, WTU; 46; 1892-2013)
Achnatherum hymenoides (CIC, EWU, ID, IDS, OSC, PLU, PNNL, PSM, SRP, WCW, WS, WSTC, WTU, WWB; 159; 1884-2019)
Achnatherum lemmonii (CIC, EWU, ID, IDS, NOCA, OSC, REED, RM, UBC, WS, WTU, WWB; 210; 1882-2019)
ssp. lemmonii (CIC, ID, NOCA, OSC, RM, UBC, WS, WTU, WWB; 105; 1882-2015)
ssp. lemmonnii (NOCA; 1; 2010)
ssp. pubescens (WS, WTU; 23; 1883-2000)
var. lemmonnii (NOCA; 2; 2006)
Achnatherum lettermanii (EWU, ID, NOCA, WTU; 26; 1900-2006)
Achnatherum nelsonii (EWU, ID, IDS, OSC, PSM, RM, SRP, UBC, WS, WTU, WWB; 119; 1884-2020)
ssp. dorei (EWU, IDS, OSC, RM, SRP, UBC, WS, WTU; 79; 1884-2011)
ssp. nelsonii (ID, IDS, OSC, RM, WS, WTU; 31; 1884-1996)
Achnatherum occidentale (CIC, EWU, ID, NOCA, NY, OSC, PSM, RM, SOC, SRP, UBC, WS, WTU, WWB; 195; 1880-2020)
ssp. californicum (EWU, OSC, WS, WTU; 37; 1884-2020)
ssp. occidentale (NOCA, WS, WTU; 41; 1882-2005)
ssp. pubescens (CIC, OSC, SOC, UBC, WS, WTU; 60; 1880-2013)
Achnatherum richardsonii (ID, WS, WTU; 6; 1940-2009)
Achnatherum robustum (WS; 3; 1898-1904)
Achnatherum thurberianum (EWU, ID, IDS, NOCA, OSC, PNNL, WS, WSTC, WTU, WWB; 87; 1884-2019)
Achnatherum webberi (WS, WTU; 3; 1952-1996)
Acnatherum occidentalis (ID; 1; 1996)
var. occidentalis (ID; 1; 1996)
Aegilops bicornis (WTU; 1; 1931)
Aegilops cylindrica (BBLM, EWU, IDE, OSC, PSM, SRP, WCW, WS, WTU, WWB; 48; 1917-2017)
Agropyron alba (WS; 1; 1992)
Agropyron caninum (WTU; 4; 1940-1996)
ssp. trachycaulis (WTU; 4; 1940-1996)
Agropyron caninum var. tenerum × Elymus elymoides (WTU; 1; 1962)
Agropyron cristatum (CIC, EWU, ID, IDS, MONT, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, V, WCW, WS, WTU, WWB; 82; 1898-2017)
Agropyron divergens (NY; 1; 1893)
var. inermis (NY; 1; 1893)
Agropyron fragile (PNNL, V, WS; 3; 1971-1980)
ssp. fragile (V; 1; 1971)
Agropyron glaucum × Agropyron spicatum (WTU; 1; 1906)
Agropyron lutosus (WS; 2; 1897-1900)
Agrostis alba (EWU, ID, NOCA, OSC, PLU, SRP, WSTC, WTU, WWB; 94; 1884-2003)
var. alba (ID, NOCA, WTU, WWB; 20; 1970-2002)
Agrostis capillaris (CIC, EVE, HPSU, ID, MORA, NOCA, OSC, PLU, PNNL, PSM, RM, UBC, USFS, UWB, V, WS, WTU, WWB; 124; 1906-2018)
Agrostis castellana (WTU; 3; 2007-2010)
Agrostis densiflora (OSC, WS; 2; 1902-2013)
Agrostis exarata (CIC, EWU, HPSU, ID, IDS, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, V, WCW, WS, WTU, WWB; 501; 1880-2019)
var. ampla (ID, OSC, WS; 8; 1900-1965)
var. asperifolia (WS, WTU; 2; 1892)
Agrostis gigantea (EVE, OSC, PSM, V, WS, WTU; 49; 1889-2019)
Agrostis hallii (PLU; 1; 1975)
Agrostis howellii (WS, WTU; 2; 1992)
Agrostis hyemalis (EWU, NOCA, OSC, REED, WS, WTU; 11; 1918-2008)
Agrostis idahoensis (ID, NOCA, OSC, PSM, V, WS, WTU, WWB; 49; 1883-2012)
var. idahoensis (WTU; 1; 2006)
Agrostis idahoensis × Agrostis scabra (WTU; 1; 1955)
Agrostis idahoensis × Agrostis variabilis (WTU; 3; 1890)
Agrostis mertensii (NOCA, OSC, WTU, WWB; 8; 1978-2006)
Agrostis microphylla (PLU, PSM, WS, WTU, WWB; 18; 1889-2001)
Agrostis ×murbeckii (WTU; 1; 2007)
Agrostis oregonensis (CIC, ID, NY, OSC, PSM, UBC, WS, WTU, WWB; 61; 1883-2009)
Agrostis oregonensis × Agrostis scabra (WS; 1; 1910)
Agrostis pallens (CIC, EVE, EWU, ID, OSC, PLU, PSM, REED, WS, WTU, WWB; 104; 1883-2016)
Agrostis perennans (OSC, SRP, WS, WTU; 4; 1884-1965)
Agrostis rossae (EWU, ID, REED, WTU; 6; 1919-1940)
Agrostis rossiae (PSM, WTU, WWB; 4; 1935-1951)
Agrostis scabra (CIC, EWU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UBC, UWB, V, WCW, WS, WSTC, WTU, WWB; 375; 1881-2019)
Agrostis scabra × Agrostis oregonensis (WS; 2; 1893-1900)
Agrostis stolonifera (BABY, CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UBC, USFS, WS, WSTC, WTU, WWB; 303; 1882-2019)
Agrostis variabilis (CIC, NOCA, OSC, PLU, PSM, RM, V, WS, WTU, WWB; 130; 1877-2008)
Aira caryophyllea (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, V, WS, WTU; 190; 1886-2019)
var. caryophyllea (NOCA, WS, WTU; 40; 1892-2019)
Aira praecox (CIC, HPSU, NOCA, OSC, PLU, PSM, REED, RM, V, WS, WTU; 148; 1889-2019)
Alopecurus aequalis (EVE, EWU, ID, IDS, NOCA, OSC, PLU, PNNL, PSM, RM, UBC, V, WCW, WS, WTU, WWB; 189; 1880-2019)
var. aequalis (OSC, RM, WS, WTU; 105; 1880-2019)
Alopecurus arundinaceus (WTU; 1; 1961)
Alopecurus carolinianus (EWU, ID, V, WS, WTU; 10; 1893-2013)
Alopecurus geniculatus (CIC, EWU, ID, NOCA, OSC, PLU, PSM, RM, USFS, UWB, WS, WTU, WWB; 108; 1880-2018)
var. geniculatus (WTU; 2; 1999)
Alopecurus magellanicus (WS; 1; 1898)
Alopecurus myosuroides (ID, IDE, OSC, PSM, SRP, WCW, WS, WTU; 37; 1900-2004)
Alopecurus pratensis (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, WS, WTU, WWB; 82; 1898-2017)
Alopecurus saccatus (ID, OSC, PSM, WS, WTU; 17; 1899-2019)
Ammophila arenaria (CIC, HPSU, IDE, PLU, SRP, UBC, WCW, WS, WTU, WWB; 30; 1923-2018)
ssp. arenaria (HPSU, WS, WTU; 9; 1923-2018)
Ammophila breviligulata (ID, OSC, WTU; 6; 1989-2019)
ssp. breviligulata (ID, WTU; 3; 2017-2019)
Anthoxanthum aristatum (IDE, PLU, RM, USFS, WS, WTU; 12; 1912-2016)
ssp. aristatum (WS; 2; 1912-1939)
Anthoxanthum odoratum (EVE, HPSU, ID, IDE, NOCA, PLU, PSM, SRP, UAAH, UBC, USFS, UWB, V, WS, WTU, WWB; 125; 1889-2018)
Apera interrupta (CIC, EWU, ID, IDE, IDS, OSC, PNNL, PSM, RM, UBC, USFS, V, WCW, WS, WTU; 75; 1922-2017)
Apera spica-venti (RM; 2; 2001)
Aristida purpurea (EWU, OSC, PNNL, SOC, WS, WTU; 36; 1893-2016)
var. longiseta (PNNL, WS, WTU; 33; 1897-2015)
Arrhenatherum elatius (BLMVL, CIC, EVE, EWU, HPSU, ID, OSC, PLU, PSM, RM, SRP, UWB, V, WS, WTU, WWB; 96; 1882-2020)
ssp. bulbosum (BLMVL, HPSU, OSC, WTU; 4; 1972-2000)
ssp. elatius (RM, WS, WTU; 20; 1882-2016)
Avena barbata (WS, WTU; 5; 1909-2017)
Avena fatua (EWU, IDE, PLU, PSM, RM, UBC, WCW, WS, WTU, WWB; 80; 1885-2019)
var. glabrescens (UBC; 1; 1902)
Avena pubiscens (SRP; 1; 1937)
Avena sativa (CIC, HPSU, NOCA, PSM, V, WS, WTU, WWB; 24; 1890-2019)
Beckmannia erucaeformis (WTU; 5; 1892-1992)
Beckmannia syzigachne (EWU, OSC, PLU, PSM, SRP, WCW, WS, WTU; 40; 1881-2018)
Bouteloua dactyloides (WTU; 1; 2007)
Bouteloua gracilis (WS; 1; 1898)
Brachypodium sylvaticum (WTU; 5; 2013-2018)
Briza maxima (OSC, WS, WTU; 7; 1948-2008)
Briza minor (WTU; 1; 1999)
Bromus anomalus (PLU, WS; 7; 1898-1983)
Bromus arenarius (RM, WS; 4; 1928-1996)
Bromus berteroanus (PSM; 1; 1977)
Bromus briziformis (CIC, EWU, ID, OSC, PLU, PSM, REED, RM, SRP, UBC, USFS, V, WCW, WS, WTU, WWB; 119; 1884-2019)
Bromus ciliatus (ID, PSM, RM, WCW, WS, WTU, WWB; 34; 1889-2009)
Bromus commutatus (EWU, ID, NOCA, OSC, RM, UWB, V, WCW, WS, WTU, WWB; 116; 1889-2018)
Bromus commutatus × Bromus hordeaceus (WTU; 1; 1892)
Bromus diandrus (EWU, HPSU, OSC, PLU, PSM, SRP, UBC, UWB, V, WCW, WS, WTU, WWB; 162; 1890-2019)
Bromus erectus (EWU, IDS, PLU, PSM, WS, WTU; 7; 1936-1975)
Bromus eximius (NY; 1; 1893)
var. umbraticus (NY; 1; 1893)
Bromus hordeaceus (CIC, EWU, ID, IDE, IDS, NOCA, OSC, PLU, PSM, RM, SRP, USFS, V, WCW, WS, WSTC, WTU, WWB; 331; 1882-2018)
Bromus inermis (EWU, ID, NOCA, OSC, PLU, PNNL, PSM, REED, RM, UBC, V, WS, WSTC, WTU, WWB; 103; 1894-2019)
Bromus japonicus (CIC, EWU, ID, NOCA, OSC, PNNL, RM, UBC, V, WS, WTU; 76; 1903-2018)
Bromus laevipes (ID, OSC; 2; 1896)
Bromus madritensis (WS; 2; 1898-1928)
Bromus orcuttianus (ID, OSC, PSM, UBC, WS, WTU; 20; 1884-2009)
Bromus pacificus (CIC, NY, PLU, PSM, UBC, WS, WTU, WWB; 81; 1904-2016)
Bromus porteri (RM; 17; 1996-2002)
Bromus ×pseudothominii (WTU; 1; 1963)
Bromus pumpellianus (EWU, RM, WS, WTU; 13; 1884-2012)
ssp. pumpellianus (WS, WTU; 9; 1884-1999)
Bromus racemosus (CIC, EWU, PSM, RM, USFS, WCW, WS, WTU; 21; 1874-2018)
Bromus rubens (PSM, WS, WTU; 6; 1905-2011)
Bromus secalinus (EWU, ID, IDE, OSC, PLU, PSM, WS, WTU; 50; 1884-2019)
Bromus sitchensis (CIC, EWU, ID, IDS, NOCA, NY, OSC, PLU, PSM, REED, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 752; 1884-2020)
var. aleutensis (PLU, WS, WTU; 6; 1963-2006)
var. carinatus (EWU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 355; 1884-2018)
var. marginatus (CIC, EWU, ID, IDS, NOCA, NY, OSC, REED, UBC, V, WS, WTU, WWB; 268; 1885-2020)
var. maritimus (OSC, WTU; 12; 1893-2006)
var. polyanthus (EWU, REED, WS; 8; 1919-1997)
var. sitchensis (ID, NOCA, OSC, SRP, WS, WTU; 35; 1889-2011)
Bromus squarrosus (EWU, RM, UBC, WTU; 12; 1947-2020)
var. villosus (UBC; 1; 1947)
Bromus sterilis (CIC, EVE, HPSU, ID, IDE, OSC, PLU, PSM, SRP, UWB, WCW, WS, WTU, WWB; 110; 1904-2018)
Bromus subuliflora (WTU; 1; 1999)
Bromus suksdorfii (EWU, ID, NY, OSC, PSM, UBC, WS, WTU; 28; 1883-2008)
Bromus tectorum (CIC, EWU, HPSU, ID, NOCA, NY, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, USFS, V, WCW, WS, WSTC, WTU, WWB; 514; 1882-2019)
Bromus tenerum (REED; 1; 1919)
Bromus vulgaris (CIC, EWU, ID, NOCA, NY, OSC, PLU, PSM, RM, SRP, UBC, WCW, WS, WTU, WWB; 222; 1882-2019)
Calamagrostis ×acutiflora (IDE; 1; 2008)
Calamagrostis canadensis (CIC, EWU, ID, NOCA, NY, OSC, PLU, PSM, RM, SOC, UBC, V, WS, WTU, WWB; 296; 1880-2019)
var. canadensis (NOCA, NY, OSC, WS, WTU, WWB; 145; 1880-2016)
var. langsdorffii (CIC, EWU, ID, NOCA, OSC, PLU, SOC, V, WS, WTU, WWB; 33; 1884-2019)
Calamagrostis deacon (WTU; 2; 1892)
var. robusta (WTU; 2; 1892)
Calamagrostis howellii (OSC, PLU, PSM, UBC, WS, WTU; 21; 1882-1994)
Calamagrostis koelerioides (WWB; 2; 1970-1978)
Calamagrostis lapponica (OSC; 1; 1893)
Calamagrostis montanensis (PSM; 1; 1951)
Calamagrostis nutkaensis (ID, OSC, PLU, PSM, UBC, V, WS, WTU, WWB; 28; 1886-2018)
Calamagrostis purpurascens (HPSU, ID, NOCA, OSC, PSM, SRP, V, WS, WTU, WWB; 50; 1886-2017)
Calamagrostis rigescens (WTU; 1; 1937)
Calamagrostis rubescens (BLMMD, CIC, EWU, ID, NOCA, OSC, PSM, REED, RM, V, WCW, WS, WTU, WWB; 183; 1882-2019)
Calamagrostis stricta (ID, NOCA, OSC, PLU, RM, UBC, WS, WTU, WWB; 82; 1880-2006)
ssp. inexpansa (NOCA, OSC, PLU, RM, UBC, WS, WTU, WWB; 70; 1880-2006)
ssp. stricta (WTU; 3; 1934-2005)
var. inexpansa (WTU; 5; 1884-1934)
Calamagrostis tacomensis (NY, OSC, PLU, PSM, WS, WTU; 37; 1886-2017)
Calamagrostis tweedyi (BLMMD, ID, NOCA, UBC, WS, WTU, WWB; 16; 1937-2012)
Calamovilfa gigantea (ID, WS; 3; 1937-1993)
Calamovilfa longifolia (BLMMD, CIC, ID, SOC, WS; 7; 1948-2012)
var. longifolia (BLMMD, WS; 2; 1981-2006)
Calotheca brizoides (WCW; 1; 1894)
Capillare capillare (WS; 1; 1980)
ssp. capillare (WS; 1; 1980)
Cenchrus biflorus (V, WS; 2; 1937-1963)
Cenchrus longispinus (BLMMD, HPSU, ID, OSC, PNNL, PSM, SRP, V, WS, WSTC, WTU, WWB; 31; 1923-2018)
Cenchrus orientalis (WTU; 1; 2014)
Cenchrus spinifex (UBC, WS; 3; 1926-1956)
Chasmanthium latifolium (PLU; 1; 1959)
Cinna latifolia (CIC, EWU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, WS, WTU, WWB; 146; 1883-2017)
Coleanthus subtilis (OSC, WS; 8; 1880-1905)
Cortaderia jubata (WTU; 6; 2000-2016)
Cortaderia selloana (OSC, WTU; 10; 2000-2018)
Corynephorus canescens (ID, WS, WTU; 8; 1949-2016)
Crypsis alopecuroides (ID, OSC, RM, WS, WTU; 19; 1945-2018)
Crypsis vaginiflora (ID, WTU; 6; 2008-2016)
Cynodon dactylon (ID, IDE, OSC, UBC, WCW, WS, WSTC, WTU, WWB; 30; 1897-2018)
Cynosurus cristata (WTU; 1; 2017)
Cynosurus cristatus (CIC, HPSU, NOCA, OSC, PLU, PSM, WS, WTU, WWB; 46; 1929-2017)
Cynosurus echinatus (ID, OSC, PLU, PSM, SRP, WS, WTU, WWB; 38; 1972-2017)
Dactylis glomerata (CIC, EWU, ID, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, V, WS, WSTC, WTU, WWB; 225; 1882-2019)
Danthonia californica (CIC, EVE, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, UBC, WCW, WS, WTU, WWB; 125; 1881-2020)
ssp. americana (WTU; 1; 1889)
Danthonia compressa (WS; 1; 1926)
Danthonia decumbens (OSC, WS, WTU; 8; 1991-2007)
Danthonia intermedia (EVE, EWU, ID, MORA, NOCA, OSC, RM, UBC, V, WS, WTU, WWB; 155; 1884-2018)
Danthonia spicata (CIC, EVE, ID, NOCA, OSC, PLU, PSM, RM, V, WS, WTU, WWB; 69; 1890-2019)
Danthonia unispicata (EWU, ID, IDS, NOCA, OSC, RM, V, WS, WTU; 88; 1889-2019)
Deschampsia caespitosa (WTU; 2; 1963)
var. holciformis (WTU; 2; 1963)
Deschampsia cespitosa (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, WCW, WS, WTU, WWB; 171; 1881-2017)
Deschampsia danthonioides (CIC, EWU, ID, NOCA, OSC, PSM, REED, RM, SRP, V, WCW, WS, WTU; 105; 1881-2019)
Deschampsia elongata (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, WCW, WS, WTU, WWB; 281; 1884-2019)
Dichanthelium acuminatum (EVE, HPSU, ID, NOCA, NY, OSC, PLU, PNNL, PSM, V, WS, WTU, WWB; 140; 1881-2019)
ssp. acuminatum (EVE, HPSU, ID, NOCA, NY, PLU, PNNL, WS, WTU, WWB; 36; 1898-2017)
ssp. fasciculatum (ID, NOCA, OSC, V, WS, WTU; 92; 1881-2018)
ssp. lindheimeri (WTU; 1; 1905)
Dichanthelium latifolium (WS; 1; 1922)
Dichanthelium oligosanthes (EWU, ID, IDS, NOCA, OSC, RM, SOC, SRP, UBC, WS, WTU; 81; 1882-2016)
ssp. scribnerianum (ID, IDS, NOCA, OSC, RM, SOC, SRP, UBC, WS, WTU; 78; 1882-2016)
Dichanthelium scabriusculum (PLU; 1; 1981)
Digitaria ischaemum (EWU, NOCA, OSC, PLU, SRP, WS, WTU, WWB; 20; 1894-2014)
Digitaria sanguinalis (CIC, EWU, ID, NOCA, OSC, PSM, UWB, WCW, WS, WSTC, WTU; 63; 1892-2019)
Diplachne fusca (SRP, WS, WTU; 18; 1924-2016)
ssp. fascicularis (SRP, WS, WTU; 17; 1924-2016)
ssp. uninervia (WS; 1; 2002)
Distichlis spicata (CIC, EWU, ID, IDS, NY, OSC, PLU, PNNL, PSM, RM, UBC, WCW, WS, WSTC, WTU, WWB; 251; 1863-2014)
var. dentata (WTU; 1; 1971)
Echinochloa colona (WS; 1; 2008)
Echinochloa crus-galli (CIC, EWU, ID, IDE, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UBC, USFS, UWB, V, WCW, WS, WSTC, WTU, WWB; 182; 1886-2018)
Echinochloa crus-gallii (WS; 2; 1958-2001)
Echinochloa crus-pavonis (WWB; 2; 1961-1967)
var. crus-pavonis (WWB; 2; 1961-1967)
Echinochloa muricata (ID, OSC, RM, WS, WTU; 36; 1886-2019)
var. microstachya (ID, RM, WS, WTU; 31; 1886-2019)
var. muricata (WS; 1; 1894)
Eleusine coracana (WS; 2; 1897)
Eleusine tristachya (WS; 2; 1898)
×Elyhordeum macounii (OSC, WS, WTU; 13; 1893-2014)
×Elyleymus aristatus (EWU, ID, SRP, UBC, WS, WTU; 37; 1905-1937)
Elymus albicans (OSC, RM, UBC, WS; 8; 1893-2009)
Elymus canadensis (ID, NOCA, OSC, PLU, PSM, RM, UBC, V, WS, WTU; 60; 1889-2019)
var. canadensis (RM, V, WS, WTU; 32; 1889-2019)
Elymus canadensis × Elymus glaucus (WTU; 1; 1892)
Elymus caninus (CIC, NOCA, PLU, PNNL, PSM, WTU, WWB; 23; 1893-2003)
Elymus curvatus (WS; 1; 1902)
Elymus elymoides (CIC, EWU, ID, LEA, NOCA, NY, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, V, WS, WSTC, WTU, WWB; 402; 1882-2019)
ssp. brevifolius (OSC, REED, RM, WS, WTU; 26; 1890-2017)
ssp. elymoides (CIC, ID, NOCA, OSC, WS, WTU; 204; 1884-2019)
ssp. hordeoides (ID, NOCA, NY, OSC, PLU, PNNL, WS, WTU; 39; 1889-2009)
var. elymoides (RM, WTU; 3; 1962-1995)
Elymus glaucus (CIC, COLO, EVE, EWU, ID, MONTU, MORA, NOCA, NY, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, V, WS, WSTC, WTU; 572; 1880-2020)
ssp. glaucus (COLO, EWU, MONTU, MORA, NOCA, NY, OSC, PLU, RM, SRP, UBC, V, WS, WTU; 341; 1880-2019)
ssp. virescens (NOCA, PLU, V, WS, WTU; 21; 1893-2019)
Elymus glaucus × Elymus latiglumis (WTU; 1; 1930)
Elymus glaucus × Hordeum nodosum (WTU; 1; 1905)
Elymus glaucus × Sitanion (WTU; 3; 1902-1905)
Elymus glaucus × Sitanion hystrix (WTU; 1; 1923)
Elymus glaucus × Sitanion hystrix var. californicum (WTU; 1; 1890)
Elymus ×hansenii (ID, OSC, WS, WSTC, WTU; 46; 1886-1964)
Elymus hirsutus (HPSU, NOCA, OSC, PSM, WTU; 17; 1900-2013)
Elymus hystrix (WTU; 2; 1898-2002)
var. californican (WTU; 1; 1898)
Elymus lanceolatus (EWU, ID, NOCA, NY, OSC, PNNL, REED, RM, WS, WSTC, WTU, WWB; 119; 1886-2020)
ssp. lanceolatus (ID, NOCA, NY, OSC, PNNL, WS, WSTC, WTU, WWB; 89; 1886-2019)
ssp. psammophilus (OSC, WTU; 6; 1920-2018)
ssp. riparius (EWU, ID, OSC, REED, WTU; 11; 1889-1974)
var. lanceolatus (RM; 5; 2001)
Elymus multisetus (EWU, ID, OSC, PNNL, PSM, SRP, UBC, WS, WSTC, WTU; 64; 1890-2009)
Elymus repens (CIC, EWU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, UWB, WCW, WS, WTU, WWB; 183; 1882-2019)
Elymus scribneri (RM, WS, WTU; 7; 1902-1996)
Elymus semicostatus (WS; 1; ?)
Elymus sibiricus (NY; 1; 1882)
Elymus trachycaulus (EWU, ID, IDE, NOCA, NY, OSC, PNNL, PSM, RM, UBC, V, WCW, WS, WSTC, WTU, WWB; 148; 1882-2018)
ssp. subsecundus (V, WS, WTU, WWB; 11; 1898-1982)
ssp. trachycaulus (EWU, ID, NOCA, NY, OSC, PNNL, RM, UBC, V, WCW, WS, WSTC, WTU, WWB; 124; 1882-2016)
Elymus trachycaulus × Elymus scribneri (NOCA, WTU; 7; 1930-1972)
Elymus trachycaulus × Hordeum jubatum (PSM; 1; 1951)
Elymus violaceus (EWU, ID, OSC, V, WS, WTU, WWB; 33; 1884-1987)
Elymus virginicus (EWU, PLU, WCW; 5; 1897-1977)
Elymus wawawaiensis (UBC, WS, WTU; 4; 1933-2003)
Eragrostis cilianensis (ID, IDE, OSC, RM, UBC, WS, WTU; 28; 1929-2019)
Eragrostis curvula (ID, IDE, OSC, WTU; 13; 1991-2019)
Eragrostis hypnoides (ID, OSC, SRP, UBC, WS, WTU; 48; 1883-2019)
Eragrostis lutescens (PNNL, WS, WSTC, WTU; 6; 1896-2018)
Eragrostis mexicana (BABY, BLMMD, CIC, ID, IDE, OSC, UBC, WCW, WS, WTU; 23; 1897-2019)
ssp. mexicana (WS; 1; 1897)
ssp. virescens (BABY, BLMMD, CIC, ID, IDE, OSC, UBC, WS, WTU; 21; 1955-2019)
Eragrostis minor (BLMMD, ID, IDE, OSC, WS, WTU; 24; 1985-2019)
Eragrostis pectinacea (EWU, ID, IDE, OSC, PNNL, PSM, V, WS, WSTC, WTU; 63; 1894-2018)
var. pectinacea (OSC, WS, WTU; 34; 1894-2018)
Eragrostis pilosa (ID, WS, WTU; 4; 1923-2017)
var. pilosa (ID, WS, WTU; 4; 1923-2017)
Eragrostis reptans (WCW; 1; 1894)
Eragrostis trichodes (WS; 2; 1897)
Eremopyrum triticeum (CIC, ID, WCW, WS, WTU; 12; 1952-2013)
Eriochloa polystachya (PLU; 1; 1913)
Fargesia spathacea (WTU; 1; 2007)
Festuca actoflora (PLU; 3; 1976)
Festuca brachyphylla (EWU, MORA, NOCA, RM, WS, WTU, WWB; 71; 1882-2010)
ssp. brachyphylla (NOCA, WS, WTU; 30; 1882-2010)
ssp. coloradensis (RM, WTU; 2; 1956-1996)
Festuca campestris (CIC, EWU, IDS, NY, OSC, PSM, RM, WS, WTU; 54; 1884-2014)
Festuca doreana (OSC; 1; 1935)
Festuca elmeri (REED, V; 3; 1882-1995)
Festuca filiformis (WTU; 5; 1965-2002)
Festuca idahoensis (CIC, EVE, EWU, ID, IDS, NOCA, OSC, PLU, PSM, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 422; 1885-2020)
Festuca occidentalis (EVE, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, WS, WTU, WWB; 239; 1882-2020)
Festuca ovina (ID, NOCA, PLU, PNNL, PSM, REED, SRP, WCW, WTU, WWB; 21; 1882-2002)
var. sulcata (WCW; 1; 1894)
Festuca roemeri (ID, OSC, V, WTU; 57; 1898-2017)
var. roemeri (OSC, WTU; 16; 1900-2005)
Festuca rubra (CIC, EVE, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, V, WS, WTU, WWB; 433; 1884-2019)
ssp. commutata (EVE, OSC, WTU; 4; 1969-2007)
ssp. fallax (OSC; 1; 1994)
ssp. juncea (OSC, WS, WTU; 33; 1889-2007)
ssp. mediana (OSC, PLU, SRP, WS, WTU, WWB; 40; 1889-2006)
ssp. rubra (ID, NOCA, OSC, RM, UBC, UWB, WS, WTU; 104; 1884-2008)
ssp. secunda (V; 1; ?)
ssp. vallicola (OSC, WS; 2; 1900-1983)
var. commutata (NOCA, OSC, WTU; 8; 1951-2006)
var. saxiruimfaun (WTU; 1; 1897)
Festuca saximontana (CIC, NOCA, OSC, RM, UBC, WS, WTU, WWB; 63; 1883-1996)
var. purpusiana (OSC, UBC, WS, WTU; 29; 1890-1994)
var. saximontana (CIC, NOCA, OSC, RM, WS, WTU, WWB; 26; 1883-1996)
Festuca scabrella (EWU, ID, OSC, PLU, UBC, WTU, WWB; 20; 1897-1996)
Festuca subulata (CIC, HPSU, NOCA, OSC, PLU, PSM, REED, SRP, UBC, WS, WTU, WWB; 96; 1883-2019)
Festuca subuliflora (ID, NY, OSC, SRP, UBC, WS, WTU; 38; 1890-2018)
Festuca trachyphylla (EWU, UBC, WTU; 8; 1939-2019)
Festuca valesiaca (EWU, OSC, WTU; 8; 1994-2019)
Festuca viridula (CIC, EWU, ID, NOCA, OSC, PLU, PSM, RM, SOC, WS, WTU, WWB; 168; 1882-2012)
Festuca washingtonica (BLMMD, OSC, UBC, WS, WTU; 46; 1932-2004)
Glyceria borealis (BLMMD, EWU, ID, NOCA, OSC, PLU, PSM, RM, SRP, UWB, V, WS, WTU, WWB; 118; 1884-2019)
Glyceria canadensis (BLMMD, OSC, SOC, WTU; 8; 1998-2013)
Glyceria declinata (ID, WTU; 7; 1998-2018)
Glyceria elata (CIC, EWU, HPSU, ID, IDS, NOCA, NY, OSC, PLU, RM, SRP, UBC, UWB, V, WS, WTU, WWB; 203; 1886-2018)
Glyceria fluitans (RM, WS, WTU; 7; 1885-1999)
Glyceria grandis (CIC, EWU, ID, NOCA, PLU, PSM, RM, V, WS, WTU, WWB; 97; 1889-2018)
var. grandis (NOCA, WS, WTU, WWB; 29; 1889-2017)
Glyceria leptostachya (NOCA, OSC, PLU, PSM, UBC, WS, WTU, WWB; 44; 1893-2019)
Glyceria maxima (WTU; 4; 2009)
Glyceria ×occidentalis (ID, NY, OSC, PSM, WS, WTU; 24; 1897-2016)
Glyceria striata (EWU, ID, IDS, OSC, PLU, PSM, RM, WS, WTU, WWB; 114; 1884-2012)
Graphephorum wolfii (ID, WS, WTU, WWB; 14; 1882-1987)
Hesperostipa comata (BBLM, EWU, ID, IDE, IDS, NOCA, NY, OSC, PLU, PNNL, PSM, RM, WCW, WS, WTU, WWB; 179; 1884-2019)
ssp. comata (EWU, IDS, NOCA, NY, OSC, PNNL, RM, WS, WTU; 135; 1884-2019)
ssp. intermedia (NY, WS, WTU; 4; 1916-1932)
Hesperostipa spartea (RM; 2; 1995-1996)
Hierochloe alpina (IDS; 1; 1939)
var. alpina (IDS; 1; 1939)
Hierochloe occidentalis (WTU; 1; 1992)
Hierochloe odorata (ID, OSC, PNNL, PSM, WS, WTU; 31; 1881-2007)
Hilaria mutica (WS; 1; 1897)
Holcus lanatus (CIC, EWU, HPSU, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, USFS, UWB, V, WS, WSTC, WTU, WWB; 218; 1882-2016)
Holcus mollis (OSC, PLU, PSM, UBC, UWB, WS, WTU, WWB; 20; 1966-2018)
ssp. mollis (WTU; 1; 2007)
Hordeum brachyantherum (CIC, EWU, NOCA, OSC, PLU, PNNL, PSM, UBC, V, WS, WTU, WWB; 178; 1882-2017)
ssp. brachyantherum (OSC, WS, WTU; 7; 1893-2008)
ssp. californicum (OSC; 1; 1898)
Hordeum bulbosum (WS; 1; 1897)
Hordeum depressum (PLU, PSM, WS, WTU; 10; 1892-2018)
Hordeum discolor (UBC; 2; 1975-1983)
Hordeum jubatum (EWU, ID, IDS, NOCA, OSC, PLU, PNNL, PSM, REED, WCW, WS, WSTC, WTU, WWB; 140; 1884-2014)
ssp. intermedium (WS; 21; 1886-1987)
ssp. jubatum (WS, WTU; 45; 1884-2014)
Hordeum marinum (ID, OSC, PLU, PSM, WS, WSTC, WTU; 53; 1885-2019)
ssp. gussoneanum (ID, OSC, PLU, WS, WTU; 46; 1885-2019)
Hordeum murinum (CIC, EWU, HPSU, ID, PLU, PNNL, PSM, REED, RM, SRP, WCW, WS, WTU, WWB; 157; 1884-2019)
ssp. glaucum (EWU, ID, PLU, PNNL, REED, WS, WTU, WWB; 33; 1889-2011)
ssp. leporinum (EWU, HPSU, WS, WTU, WWB; 34; 1884-2003)
ssp. murinum (CIC, SRP, WS, WTU; 35; 1897-2019)
Hordeum pusillum (ID; 1; 1951)
Hordeum vulgare (EWU, IDE, NOCA, OSC, PLU, PSM, WS, WTU, WWB; 36; 1889-2018)
Koeleria macrantha (CIC, EVE, EWU, ID, NOCA, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 378; 1877-2017)
Leersia oryzoides (HPSU, ID, PNNL, WS, WTU, WWB; 48; 1889-2020)
Leymus arenarius (WWB; 1; 1967)
Leymus cinereus (BLMMD, EWU, ID, NOCA, NY, OSC, PNNL, PSM, RM, WCW, WS, WSTC, WTU, WWB; 140; 1880-2018)
var. cinereus (WTU; 2; 1983-1992)
Leymus condensatus (EWU, IDS, OSC, REED, WS, WTU; 13; 1898-2019)
Leymus elymoides (WTU; 1; 1965)
Leymus flavescens (ID, OSC, PNNL, V, WCW, WS, WTU; 35; 1886-2017)
Leymus innovatus (WS; 1; 1895)
Leymus mollis (CIC, HPSU, ID, OSC, PLU, PSM, RM, SRP, UWB, WS, WTU, WWB; 136; 1886-2019)
ssp. mollis (OSC, RM, UWB, WS, WTU; 50; 1889-2019)
Leymus racemosus (BLMMD, OSC, UBC, WS, WTU; 10; 1950-2013)
Leymus triticoides (EWU, ID, MONTU, NY, OSC, PSM, WS, WSTC, WTU; 65; 1884-1963)
Leymus ×vancouverensis (OSC, PLU, V, WTU; 18; 1889-1991)
Lolium multiflorum (CIC, EVE, HPSU, NOCA, OSC, PLU, PNNL, RM, USFS, UWB, WS, WSTC, WTU, WWB; 88; 1893-2008)
Lolium perenne (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, WCW, WS, WTU, WWB; 137; 1885-2016)
Lolium rigidum (OSC; 1; 1939)
Lolium temulentum (NOCA, OSC, USFS, WS, WTU; 18; 1884-2018)
ssp. temulentum (WS, WTU; 7; 1889-2018)
Melica aristata (WS; 1; 1883)
Melica bulbosa (CIC, EWU, ID, NOCA, OSC, PLU, PSM, REED, RM, WS, WTU; 72; 1881-2017)
Melica ciliata (OSC, WS, WTU; 3; 2004)
ssp. taurica (OSC, WTU; 2; 2004)
Melica fugax (ID, NY, OSC, WS, WTU; 41; 1881-2003)
Melica geyeri (WWB; 1; 1958)
Melica harfordii (ID, NOCA, NY, OSC, PLU, SRP, WS, WTU; 50; 1881-2019)
Melica smithii (NY, OSC, RM, UBC, WS, WTU; 20; 1892-2017)
Melica spectabilis (ID, NOCA, OSC, PSM, RM, WS, WTU, WWB; 39; 1889-2012)
Melica stricta (WS; 2; 1903-1913)
Melica subulata (CIC, EVE, EWU, HPSU, ID, MONT, NOCA, OSC, PLU, PSM, RM, SRP, WCW, WS, WTU, WWB; 175; 1882-2018)
Milium effusum (WTU; 1; 2000)
Miscanthus sinensis (OSC, WTU; 6; 2004-2018)
Molineriella laevis (PSM; 2; 1950-1972)
Muhlenbergia andina (WS, WTU; 5; 1897-2007)
Muhlenbergia asperifolia (ID, OSC, PNNL, PSM, WS, WSTC, WTU; 59; 1889-2019)
Muhlenbergia filiformis (ID, NOCA, OSC, PSM, RM, WS, WTU; 37; 1881-2010)
Muhlenbergia glomerata (CIC, ID, V, WS, WTU, WWB; 16; 1889-2003)
Muhlenbergia mexicana (ID, WS, WTU; 16; 1889-2007)
var. mexicana (WS; 9; 1889-1915)
Muhlenbergia minutissima (OSC, WS; 6; 1882-1898)
Muhlenbergia racemosa (OSC, WS; 8; 1889-1972)
Muhlenbergia richardsonis (EWU, ID, OSC, SRP, WCW, WS, WTU; 52; 1882-2019)
Muhlenbergia schreberi (NY; 2; 1897)
Nassella tenuissima (WTU; 3; 2012-2017)
Nassella viridula (ID, WS; 3; 1937-1996)
Nicoraepoa chonotica (OSC; 1; 1882)
Oryzopsis asperifolia (BLMMD, ID, IDS, OSC, WS, WTU; 21; 1936-2012)
Oryzopsis hendersonii × Stipa lemmonii (WTU; 1; 1967)
Panicum capillare (CIC, EVE, EWU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, V, WS, WSTC, WTU, WWB; 164; 1882-2018)
ssp. capillare (EWU, ID, NOCA, OSC, SRP, WS, WTU; 99; 1882-2018)
Panicum dichotomiflorum (NOCA, PNNL, SRP, WTU; 20; 1979-2018)
ssp. dichotomiflorum (NOCA, WTU; 7; 1990-2017)
Panicum miliaceum (CIC, ID, NOCA, PLU, PSM, WS, WTU, WWB; 25; 1897-2019)
ssp. miliaceum (WS, WTU; 8; 1999-2019)
ssp. ruderale (WTU; 1; 2015)
Panicum occidenatle (NY; 1; 1984)
Parapholia incurva (WS; 1; 2004)
Parapholis incurva (ID, OSC, SRP, UBC, WTU; 12; 2001-2018)
Pascopyrum smithii (ID, OSC, PSM, RM, SRP, WS, WTU, WWB; 75; 1893-2009)
Paspalum distichum (ID, OSC, PNNL, WS, WTU; 18; 1885-2017)
Pennisetum alopecuroided (UBC; 1; 2001)
Pennisetum setaceum (WTU; 1; 2001)
Phalaris alpinum (SRP; 1; 1897)
Phalaris arundinacea (CIC, EWU, ID, NOCA, OSC, PLU, PSM, RM, SRP, UBC, USFS, UWB, V, WCW, WS, WTU, WWB; 225; 1885-2019)
Phalaris canariensis (PLU, SRP, WS, WTU; 7; 1889-2000)
Phalaris paradoxa (WTU; 1; 1947)
Phleum alpinum (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, REED, RM, UBC, V, WS, WTU, WWB; 194; 1863-2013)
ssp. alpinum (WTU; 1; 2004)
var. alpinum (RM, WTU; 3; 1995-2002)
Phleum paniculatum (WS; 1; 1899)
Phleum pratense (CIC, EVE, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, WCW, WS, WSTC, WTU, WWB; 166; 1885-2017)
ssp. pratense (UWB, WS; 34; 1885-2017)
var. pratense (ID, RM, USFS, WTU; 38; 1914-2002)
Phragmites australis (CIC, ID, OSC, PLU, PSM, REED, V, WS, WSTC, WTU; 110; 1885-2019)
ssp. americanus (WTU; 4; 1976-2015)
ssp. australis (CIC, REED, WSTC, WTU; 39; 1947-2019)
Piptatheropsis exigua (NOCA, OSC, WS, WTU, WWB; 41; 1883-2015)
Pleuropogon hooverianus (WS; 13; 1883-1980)
Pleuropogon refractus (EWU, ID, OSC, PLU, PSM, SRP, WS, WTU; 38; 1890-2017)
Poa abbreviata (NOCA; 2; 2003)
ssp. pattersonii (NOCA; 2; 2003)
Poa alpina (ID, NOCA, OSC, UBC, V, WS, WTU, WWB; 78; 1881-2019)
ssp. alpina (NOCA, WTU; 13; 1930-2008)
Poa annua (CIC, EVE, EWU, IDS, NOCA, OSC, PLU, PSM, SRP, UWB, V, WS, WTU, WWB; 181; 1878-2019)
Poa arctica (CIC, NOCA, OSC, PLU, PSM, WTU, WWB; 16; 1939-2011)
ssp. arctica (WTU; 1; 2011)
ssp. grayana (CIC, NOCA, PLU, WTU, WWB; 12; 1972-2004)
Poa arida (PLU, PSM, RM, SRP, WTU; 7; 1941-1995)
Poa bolanderi (PSM, WS, WWB; 11; 1896-1967)
Poa bulbosa (CIC, EWU, ID, IDS, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UWB, V, WCW, WS, WSTC, WTU, WWB; 350; 1876-2019)
ssp. bulbosa (WTU; 1; 2007)
ssp. vivipara (EWU, ID, NOCA, UWB, WCW, WS, WTU; 162; 1908-2019)
Poa cambyi (EWU; 1; 1964)
Poa compressa (CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 195; 1882-2019)
Poa confinis (OSC, PLU, PSM, V, WS, WTU, WWB; 36; 1889-2017)
Poa curtifolia (BLMMD, CIC, EWU, ID, NOCA, OSC, PLU, SOC, WS, WTU, WWB; 46; 1898-2012)
Poa cusickii (CIC, EWU, ID, NOCA, NY, OSC, PNNL, PSM, REED, SRP, UBC, V, WCW, WS, WSTC, WTU, WWB; 300; 1880-2015)
ssp. cusickii (EWU, ID, NOCA, NY, OSC, PNNL, SRP, WS, WTU, WWB; 75; 1882-2008)
ssp. epilis (EWU, ID, NOCA, OSC, V, WS, WTU, WWB; 60; 1885-2013)
ssp. pallida (WTU; 1; 2008)
ssp. purpurascens (EWU, ID, NOCA, OSC, SRP, V, WS, WTU, WWB; 79; 1880-2008)
Poa epilis (OSC; 1; 1882)
var. purpurascens (OSC; 1; 1882)
Poa fendleriana (ID, NOCA, OSC, WS, WTU, WWB; 12; 1897-2008)
ssp. longiligula (WS, WTU; 4; 1897-2008)
Poa glauca (NOCA, OSC, PSM, V, WS, WTU, WWB; 25; 1902-1981)
ssp. rupicola (NOCA, V, WS, WTU, WWB; 20; 1902-1981)
Poa gracillima (NOCA; 1; 1971)
Poa hendersoni (NY; 1; 1882)
Poa howellii (ID, OSC, PSM, SRP, V, WS, WTU, WWB; 50; 1885-2009)
Poa infirma (WTU; 1; 2012)
Poa interior (NOCA, OSC, RM, WS, WTU, WWB; 15; 1889-2002)
Poa juncifolia × Poa sandbergii (WTU; 1; 1972)
Poa laxa (SRP; 1; 2018)
Poa laxiflora (OSC, WTU; 4; 1984-2018)
Poa leibergii (ID, OSC, PLU, PSM, RM, WS, WTU; 69; 1877-2018)
Poa leptocoma (CIC, ID, NOCA, OSC, PLU, PSM, RM, V, WS, WTU; 48; 1884-2016)
Poa lettermanii (NOCA, OSC, WS, WTU; 20; 1889-2008)
Poa macrantha (HPSU, ID, OSC, PLU, PSM, UBC, WCW, WS, WTU, WWB; 67; 1892-2008)
Poa marcida (OSC, PLU, PSM, SRP, WS, WTU; 20; 1927-1984)
Poa ×multnomae (WTU; 1; 1980)
Poa nemoralis (ID, OSC, WCW, WS, WTU; 11; 1884-1993)
Poa nervosa (EWU, HPSU, ID, IDS, NOCA, OSC, PSM, SRP, WS, WTU, WWB; 77; 1882-2002)
Poa palustris (EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, WS, WTU, WWB; 190; 1884-2019)
Poa paucispicula (NOCA, OSC, WS, WTU, WWB; 28; 1889-2007)
Poa pratensis (CIC, EVE, EWU, HPSU, ID, NOCA, OSC, PLU, PNNL, PSM, REED, RM, SRP, USFS, UWB, V, WCW, WS, WSTC, WTU, WWB; 435; 1876-2019)
ssp. agassizensis (V; 1; 1970)
ssp. alpigena (WTU; 1; 2010)
ssp. angustifolia (NOCA, WTU; 2; 2006)
ssp. irrigata (WTU; 1; 1944)
ssp. pratensis (WTU; 8; 1982-2013)
Poa pratensis × Poa wheeleri (RM; 1; 1995)
Poa pringlei (WS; 2; 1900-1940)
Poa reflexa (ID, WS; 2; 1896-1937)
Poa rhizomata (WWB; 1; 1967)
Poa sandbergii (WWB; 3; 1978-1986)
var. incurva (WWB; 3; 1978-1986)
Poa secunda (CIC, EWU, ID, IDS, NOCA, NY, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, V, WCW, WS, WSTC, WTU, WWB; 1625; 1878-2019)
ssp. juncifolia (EWU, ID, IDS, NOCA, NY, OSC, PLU, PNNL, RM, V, WCW, WS, WSTC, WTU; 304; 1883-2014)
ssp. nevadensis (NOCA, OSC; 7; 1897-1987)
ssp. secunda (CIC, EWU, ID, IDS, NOCA, NY, OSC, PLU, PNNL, REED, RM, SRP, UBC, V, WCW, WS, WSTC, WTU, WWB; 1070; 1878-2019)
var. saxitilis (WTU; 1; 1939)
var. secunda (ID, WTU; 5; 1995-2009)
Poa stebbinsii (WWB; 1; 1967)
Poa stenantha (NOCA, WS, WTU, WWB; 34; 1928-2019)
var. stenantha (NOCA, WTU; 13; 2004-2019)
Poa suksdorfii (NY, OSC, SRP, V, WS, WTU; 32; 1882-1993)
Poa trivialis (EWU, HPSU, NOCA, OSC, PLU, PSM, RM, SRP, USFS, UWB, V, WCW, WS, WTU, WWB; 81; 1890-2019)
ssp. trivialis (WTU; 1; 2019)
Poa unilateralis (NY, OSC, WS, WTU; 12; 1904-1980)
ssp. pachypholis (NY, WS, WTU; 9; 1904-1980)
Poa wheeleri (EWU, ID, NOCA, OSC, RM, V, WS, WTU; 105; 1883-2019)
Podagrostis aequivalvis (OSC, WS, WTU; 22; 1890-2005)
Podagrostis humilis (IDS, MORA, NOCA, NY, OSC, PSM, UBC, WS, WTU, WWB; 92; 1882-2008)
Podagrostis thurberiana (EWU, ID, MORA, NOCA, OSC, PLU, SRP, V, WTU, WWB; 139; 1882-2008)
Polypogon australis (OSC, WS, WTU; 4; 1895-1918)
Polypogon fugax (WTU; 1; 2016)
Polypogon interruptus (OSC, WS, WTU; 5; 1897-2018)
Polypogon maritimus (WTU; 2; 2019)
Polypogon monspeliensis (CIC, EWU, ID, IDE, NOCA, OSC, PLU, PNNL, PSM, RM, UBC, USFS, WCW, WS, WSTC, WTU, WWB; 221; 1885-2019)
Polypogon viridis (PSM, WS, WTU, WWB; 10; 1895-1963)
Polytrias indica (WWB; 1; 1901)
Psathyrostachys juncea (RM, WTU; 3; 1956-1995)
Pseudelymus douglasii (OSC; 1; 1900)
×Pseudelymus saxicola (NY, WS; 3; 1897-1899)
Pseudoroegnaria spicata (NOCA; 5; 2002-2010)
ssp. spicata (NOCA; 4; 2002-2006)
Pseudoroegneria spicata (EWU, ID, IDS, MONT, NOCA, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, V, WCW, WS, WSTC, WTU, WWB; 575; 1881-2020)
ssp. secunda (WS; 1; 1902)
var. inermis (WTU; 2; 1991-1992)
var. spicatum (WS; 1; 1992)
Pseudosasa japonica (WTU; 2; 2001)
Puccinellia distans (CIC, EWU, ID, OSC, V, WS, WTU, WWB; 23; 1905-2015)
Puccinellia lemmonii (ID, SRP; 2; 1982)
Puccinellia maritima (PLU, WS; 6; 1987-1997)
Puccinellia nutkaensis (CIC, ID, IDS, OSC, PSM, WS, WTU, WWB; 75; 1886-2018)
Puccinellia nuttalliana (IDS, OSC, V, WS, WTU, WWB; 32; 1906-2014)
Puccinellia pumila (OSC, PLU, V, WTU, WWB; 12; 1970-1984)
Redfieldia flexuosa (ID; 2; 1977-1993)
Rostraria cristata (OSC; 1; 1911)
Sasa palmata (WTU; 9; 2000-2018)
Schedonorus arundinaceus (CIC, EWU, ID, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, USFS, UWB, V, WCW, WS, WTU, WWB; 114; 1889-2019)
Schedonorus pratensis (CIC, EWU, ID, PLU, PSM, RM, SRP, USFS, WCW, WS, WSTC, WTU, WWB; 83; 1885-2007)
Schizachne purpurascens (PSM; 1; 1974)
Schizachyrium scoparium (BLMMD, WTU; 7; 1999-2015)
var. scoparium (WTU; 4; 1999-2015)
var. stoloniferum (WTU; 1; 2012)
Sclerochloa dura (CIC, EWU, ID, IDE, OSC, PSM, WS, WTU; 31; 1941-2011)
Scolochloa festucacea (PSM; 1; 1974)
Scribneria bolanderi (ID, OSC, WS, WTU; 9; 1886-1981)
Secale cereale (CIC, EWU, HPSU, ID, IDE, NOCA, OSC, PLU, PNNL, SRP, USFS, WCW, WS, WTU, WWB; 60; 1889-2019)
Secale strictum (WS, WTU; 2; 1965-2004)
Setaria faberi (WTU; 2; 1998-2000)
Setaria italica (WS, WTU; 5; 1885-2018)
Setaria magna (WWB; 1; 1937)
Setaria pumila (BLMMD, CIC, EWU, HPSU, ID, OSC, PNNL, PSM, SRP, WS, WSTC, WTU, WWB; 58; 1923-2019)
ssp. pumila (BLMMD, CIC, EWU, HPSU, ID, OSC, PNNL, SRP, WS, WSTC, WTU, WWB; 51; 1923-2019)
Setaria verticillata (EWU, OSC, WS, WTU; 9; 1938-2019)
Setaria viridis (CIC, EWU, ID, NOCA, OSC, PLU, PSM, REED, RM, SRP, USFS, WCW, WS, WSTC, WTU, WWB; 119; 1889-2018)
var. major (ID, SRP, WS, WTU; 4; 2002-2017)
var. viridis (ID, NOCA, WTU; 11; 2003-2018)
Sorghum bicolor (IDE, WS, WTU; 16; 1956-2015)
Sorghum halepense (PLU, PSM, WS, WTU; 8; 1890-2017)
Spartina alterniflora (HPSU, OSC, WS, WTU; 11; 1948-2003)
Spartina anglica (HPSU, OSC, SRP, UBC, WS, WTU; 20; 1983-2008)
Spartina cynosuroides (WS; 2; 1902-1904)
Spartina densiflora (UBC, WS, WTU; 3; 2001)
Spartina gracilis (EWU, ID, IDS, MONT, OSC, PSM, WS, WSTC, WTU; 59; 1884-2018)
Spartina patens (ID, OSC, WS, WTU; 4; 1983-2004)
Spartina pectinata (BLMMD, ID, SRP, WS, WTU; 20; 1896-2019)
Spartina ×townsendii (WS, WTU; 3; 1965-1996)
Sphenopholis filiformis (WS; 1; 1902)
Sphenopholis intermedia (WS; 7; 1884-1963)
Sphenopholis obtusata (ID, OSC, PSM, WS, WTU; 25; 1884-1998)
Sphenopholis ×pallens (WS; 3; 1892-1902)
Sporobolus airoides (OSC, WS, WTU; 7; 1902-1984)
Sporobolus compositus (BLMMD, OSC, WTU; 6; 2008-2012)
var. compositus (OSC, WTU; 5; 2008-2012)
Sporobolus cryptandrus (BLMMD, EWU, ID, IDE, NOCA, OSC, PNNL, RM, V, WS, WTU; 57; 1889-2019)
var. cryptandrus (WS; 6; 1889-1919)
Sporobolus neglectus (OSC, WS, WTU; 5; 1902-1916)
Sporobolus richardsonii (OSC; 1; 1902)
Sporobolus vaginiflorus (ID; 1; 2019)
var. vaginiflorus (ID; 1; 2019)
Stipa lemmonii × Stipa occidentalis (ID; 1; 1952)
Stipa lemmonii × Stipa occidentalis var. occidentalis (WTU; 1; 1923)
Stipa occidentalis (NOCA; 3; 1970-2001)
Taeniatherum caput-medusae (EWU, ID, OSC, RM, WS, WTU; 18; 1901-2018)
Thinopyrum elongatum (PNNL; 1; 1984)
Thinopyrum intermedium (EWU, ID, NOCA, OSC, PLU, PNNL, PSM, REED, RM, SRP, UBC, WS, WTU; 40; 1889-2015)
ssp. barbulatum (NOCA, OSC, WTU; 5; 1991-2010)
ssp. intermedium (OSC, WS, WTU; 7; 1893-2012)
Thinopyrum ponticum (IDE, OSC, RM, WTU; 8; 1993-2018)
Thynopyrum intermedium (WTU; 1; 1902)
Torreyochloa pallida (EWU, ID, NOCA, NY, OSC, PLU, PSM, RM, SRP, V, WCW, WS, WSTC, WTU, WWB; 196; 1880-2016)
var. pallida (WTU; 2; 1892-1999)
var. pauciflora (EWU, ID, NOCA, NY, OSC, PLU, RM, SRP, V, WCW, WS, WSTC, WTU, WWB; 188; 1880-2016)
Tridens albescens (WCW; 1; ?)
Tripidium ravennae (CIC, WTU; 6; 2011-2018)
Triplasis purpurea (OSC, WS, WTU; 9; 1990-2016)
Trisetum canescens (EWU, ID, IDS, NOCA, OSC, PSM, RM, SRP, UBC, V, WS, WTU, WWB; 164; 1882-2020)
Trisetum cernuum (CIC, EWU, ID, NOCA, OSC, PLU, RM, SRP, WCW, WS, WTU, WWB; 114; 1883-2019)
var. pubescens (WTU; 4; 1889-1933)
Trisetum flavescens (WS; 1; 1898)
Trisetum spicatum (CIC, EWU, ID, MORA, NOCA, OSC, PLU, PSM, REED, RM, UBC, WS, WTU, WWB; 282; 1880-2019)
×Triticosecale wittmack (IDE; 2; 1988)
Triticum aestivum (CIC, EVE, EWU, HPSU, NOCA, OSC, PLU, PNNL, PSM, RM, UBC, WCW, WS, WTU, WWB; 49; 1918-2020)
Vahlodea atropurpurea (CIC, EWU, ID, MORA, NOCA, OSC, PLU, PNNL, PSM, RM, SRP, UBC, V, WCW, WS, WTU, WWB; 204; 1881-2013)
Ventenata dubia (EWU, HPSU, ID, IDE, OSC, SRP, WS, WTU; 63; 1960-2018)
Vulpia bromoides (BLMMD, CIC, EWU, HPSU, ID, NOCA, OSC, PLU, PSM, RM, SRP, UBC, V, WS, WTU; 201; 1889-2018)
Vulpia microstachys (CIC, COLO, EWU, ID, IDE, IDS, NOCA, NY, OSC, PLU, PNNL, PSM, RM, SRP, UBC, WCW, WS, WSTC, WTU, WWB; 382; 1880-2018)
var. ciliata (EWU, WS; 3; 1909-1926)
var. confusa (IDS, NY, OSC, WS, WTU; 27; 1883-1962)
var. microstachys (IDS, OSC, RM, WS, WTU; 15; 1902-2007)
var. pauciflora (CIC, EWU, ID, IDS, NY, OSC, SRP, WS, WTU; 146; 1880-2007)
Vulpia myuros (BLMVL, CIC, EWU, ID, NOCA, OSC, PLU, PSM, REED, SRP, UWB, V, WCW, WS, WTU, WWB; 240; 1882-2020)
Vulpia octoflora (ID, IDS, NOCA, OSC, PLU, PNNL, PSM, RM, WS, WTU, WWB; 77; 1883-2012)
var. hirtella (ID, WS; 6; 1883-1991)
var. octoflora (IDS, NOCA, OSC, WS, WTU; 43; 1883-2002)
var. tenella (WS; 2; 1892-1898)
Zea mays (WS, WTU; 7; 2002-2007)
ssp. mays (WS, WTU; 6; 2005-2007)
Zizania aquatica (WCW, WS, WWB; 4; 1972-2004)
var. aquatica (WS; 1; 2004)
Zizania palustris (WTU; 5; 1934-2018)
var. palustris (WTU; 5; 1934-2018)