Vascular Plants of the Pacific Northwest
Cyperaceae
Cyperaceae
Generated from PNW Herbaria database
November 28, 2020.
18 genus names
624 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)
Index to Genera:
A: Amphiscirpus
D: Dulichium
E: Eleocharis, Eriophorum
F: Fuirena
I: Isolepis
K: Kobresia
L: Lipocarpha
R: Rhynchospora
T: Trichophorum,
Amphiscirpus nevadensis (BC, ID, MT, OR, WA; 99; 1885-2015)
Blysmopsis rufa (AK, YK; 4; 1931-2003)
Bolboschoenus fluviatilis (BC, ID, MT, OR, WA; 60; 1900-2017)
Bolboschoenus glaucus (BC, ID; 13; 1939-2008)
Bolboschoenus maritimus (AK, BC, ID, MT, OR, WA; 495; 1882-2019)
ssp. maritimus (WA; 3; 1976-1992)
ssp. paludosus (AK, BC, ID, MT, OR, WA; 314; 1882-2019)
Bolboschoenus novae-angliae (OR; 2; 2003)
Bolboschoenus robustus (BC, ID, OR, WA; 11; 1916-1965)
Bulboschoenus glaucus (ID; 1; 2016)
Bulbostylis capillaris (BC, MT, OR; 6; 1887-2005)
Bulbostylis stenophylla (ID, OR; 2; 1999-2002)
Carex aboriginum (BC, ID; 10; 1899-2019)
Carex abrupta (ID, OR, WA; 81; 1916-2020)
Carex acuta (AK; 1; 1940)
Carex adelostoma (AK, ID; 5; 1973-2015)
Carex adjusta (BC; 1; 1963)
Carex adusta (BC, ID; 7; 1955-2015)
Carex affinis (ID; 1; 1933)
var. concinnoides (ID; 1; 1933)
Carex agastachys (OR; 1; 2019)
Carex albonigra (AK, BC, ID, MT, WA, YK; 335; 1895-2018)
Carex amphibola (ID, MT, OR; 4; 1988-2014)
Carex amplifolia (BC, ID, MT, OR, WA; 432; 1866-2020)
Carex angustata (ID, OR, WA; 143; 1882-2013)
Carex anthoxanthea (AK, BC, WA; 223; 1904-2019)
Carex aperta (BC, ID, MT, OR, WA; 287; 1881-2018)
f. hydroessa (WA; 1; 1909)
f. mimetica (WA; 1; 1914)
Carex aquatilis (AK, BC, ID, MT, OR, WA, YK; 2180; 1883-2020)
ssp. aquatilis (AK, BC, YK; 34; 1959-2011)
var. aquatilis (AK, BC, ID, MT, OR, WA, YK; 420; 1886-2020)
var. dives (AK, BC, ID, MT, OR, WA; 539; 1883-2018)
Carex aquatilis var. dives × Carex lyngbyei (BC; 1; 1957)
Carex aquatilis var. dives × Carex obnupta (WA; 1; 2009)
var. minor (AK, BC, ID, YK; 43; 1950-2016)
var. substricta (BC; 3; 2003-2012)
Carex aquatilis × Carex scopulorum (WA; 1; 1979)
Carex aquatilis × Carex scopulorum var. bracteosa (OR; 1; 1980)
Carex arapahoensis (MT; 2; 1976-1978)
Carex arcta (AK, BC, ID, MT, OR, WA, YK; 483; 1882-2020)
var. atrosquama (BC; 1; 1944)
Carex arctaeformis (BC; 19; 1915-1993)
Carex arctiformis (AK, BC; 30; 1915-2001)
Carex arenaria (OR; 11; 1916-2010)
Carex arenicola (BC; 1; 1957)
ssp. arenicola (BC; 1; 1957)
Carex arthrostachya (WA; 1; 1975)
Carex assiniboinensis (AK; 1; 1941)
Carex atherodes (AK, BC, ID, MT, OR, WA, YK; 182; 1889-2019)
Carex athrostachya (BC, ID, MT, OR, WA; 898; 1882-2020)
Carex atrata (AK, BC, ID, MT, OR, WA, YK; 76; 1888-2014)
Carex atratiformis (AK, BC, ID, MT, OR, WA, YK; 61; 1936-2015)
Carex atrofusca (AK, YK; 134; 1918-2019)
Carex atrosquama (AK, BC, ID, MT, OR, WA, YK; 228; 1894-2017)
Carex atrosquama × Heteroneura (WA; 1; 2009)
Carex aurea (AK, BC, ID, MT, OR, WA, YK; 730; 1880-2020)
Carex backii (BC, ID, MT, WA; 29; 1948-2018)
Carex barbarae (OR; 24; 1884-2010)
Carex bebbii (AK, BC, ID, MT, OR, WA, YK; 378; 1892-2017)
Carex bicolor (AK, BC, YK; 120; 1926-2019)
var. androgyma (YK; 1; 1968)
var. androgyna (BC; 1; 1968)
var. bicolor (BC; 1; 1982)
Carex bigelovii (BC; 1; 2008)
ssp. lugens (BC; 1; 2008)
Carex bigelowii (AK, BC, ID, MT, WA, YK; 728; 1800-2019)
ssp. bigelowii (AK, WA, YK; 16; 1929-1952)
ssp. lugens (AK, YK; 171; 1899-2017)
Carex bolanderi (BC, ID, MT, OR, WA; 212; 1882-2020)
ssp. bolanderi (BC, ID, MT, OR, WA; 37; 1883-1995)
ssp. infirminervia (BC, ID, MT, OR, WA; 7; 1928-1949)
Carex bonanzensis (AK, YK; 15; 1899-2014)
Carex boolanderi (BC; 1; 2013)
Carex brainerdii (OR; 23; 1916-2012)
Carex brevior (BC, ID, MT, OR, WA; 190; 1888-2017)
Carex breweri (BC, ID, MT, OR, WA; 111; 1882-2013)
Carex brewerii (MT, OR; 2; 1970)
Carex brewweri (WA; 1; 1978)
var. padvensis (WA; 1; 1978)
Carex brunnescens (AK, BC, ID, MT, OR, WA, YK; 334; 1861-2018)
ssp. brunnescens (AK, BC, ID, OR, WA, YK; 57; 1938-2016)
ssp. heleonastes (BC; 1; 1980)
ssp. sphaerostachya (BC, ID, WA; 9; 1939-2001)
var. brunnescens (BC, ID, MT, OR; 13; 1987-2008)
var. disjuncta (BC; 1; 1975)
Carex buchananii (OR, WA; 6; 2012-2013)
Carex bushii (ID; 1; 1965)
Carex buxbaumii (AK, BC, ID, MT, OR, WA, YK; 348; 1890-2020)
Carex californica (ID, OR, WA; 61; 1893-2019)
Carex campacta (AK; 1; 1918)
Carex canescens (AK, BC, ID, MT, OR, WA, YK; 1064; 1882-2020)
ssp. canescens (AK, BC, ID, OR, WA; 155; 1912-2020)
ssp. disjuncta (BC, MT; 8; 1971-2015)
var. arctaeformis (BC; 1; 1977)
var. canescens (AK, ID, MT, WA; 41; 1895-2011)
Carex capillaris (AK, BC, ID, MT, OR, WA, YK; 498; 1888-2019)
ssp. capillaris (BC, ID, YK; 4; 1944-2005)
ssp. elongata (BC; 4; 1956)
ssp. fuscidula (AK, YK; 68; 1939-2004)
Carex capitata (AK, BC, ID, MT, OR, WA, YK; 234; 1931-2018)
var. capitata (YK; 1; 1960)
Carex chalciolepis (MT; 11; 1941-2015)
Carex chionophila (YK; 1; 1902)
Carex chloropoda (MT; 1; 1903)
Carex chordorrhiza (AK, BC, ID, MT, OR, WA, YK; 215; 1948-2019)
Carex circinata (AK, BC, WA; 178; 1900-2019)
Carex comans (OR; 3; 2009-2012)
Carex comosa (BC, ID, MT, OR, WA; 69; 1882-2019)
Carex concinna (AK, BC, ID, MT, OR, WA, YK; 277; 1887-2018)
Carex concinnoides (BC, ID, MT, OR, WA; 400; 1893-2018)
Carex conescens (MT; 1; 1917)
Carex congdonii (ID; 1; 1990)
Carex cordillerana (BC, ID, MT, OR, WA; 83; 1886-2020)
Carex crawei (BC, ID, MT, OR; 31; 1916-2015)
var. tinctoria (BC; 1; 2004)
Carex crawfordii (AK, BC, ID, MT, OR, WA, YK; 228; 1904-2020)
Carex crinita (ID; 1; 2000)
Carex cristatella (ID; 1; 1884)
Carex cryptolepis (MT; 1; 1950)
Carex cusickii (BC, ID, MT, OR, WA; 413; 1879-2020)
Carex davyi (ID, OR, WA; 13; 1898-2009)
Carex deflex (ID; 3; 2005-2013)
var. boottii (ID; 3; 2005-2013)
Carex deflexa (AK, BC, ID, MT, OR, WA, YK; 118; 1882-2020)
var. boottii (BC, ID, MT, OR, WA; 53; 1882-2020)
var. deflexa (BC, ID; 5; 2009-2013)
Carex densa (OR, WA; 168; 1886-2019)
Carex deweyana (AK, BC, ID, MT, OR, WA, YK; 437; 1884-2019)
var. deweyana (AK, BC, ID, MT, WA, YK; 72; 1884-2019)
Carex diandra (AK, BC, ID, MT, OR, WA, YK; 286; 1889-2020)
Carex diluta (MT; 6; 1995-2014)
Carex dioica × Carex tenuiflora (AK; 1; 1951)
Carex disperma (AK, BC, ID, MT, OR, WA, YK; 667; 1881-2020)
Carex distans (OR; 9; 2001-2017)
Carex divulsa (OR, WA; 8; 2007-2019)
ssp. divulsa (WA; 1; 2007)
ssp. leersii (WA; 3; 2011-2015)
Carex douglasii (BC, ID, MT, OR, WA; 560; 1882-2019)
var. laxiflora (MT; 1; 1888)
Carex duriuscula (AK, BC, ID, MT, OR, YK; 250; 1885-2019)
Carex ebenea (ID, MT; 13; 1941-2000)
Carex eburnea (AK, BC, MT, WA, YK; 108; 1941-2015)
Carex echinata (AK, BC, ID, MT, OR, WA; 741; 1881-2020)
ssp. echinata (AK, BC, ID, MT, OR, WA; 296; 1881-2020)
ssp. phyllomanica (AK, BC, ID, OR, WA; 262; 1884-2014)
var. echinata (OR, WA; 2; 1946-2007)
Carex egglestonii (ID; 8; 1939)
Carex eleusinoides (AK, BC, MT, YK; 65; 1944-2013)
Carex elrodi (MT; 2; 1909)
Carex elynoides (ID, MT; 170; 1929-2018)
Carex emoryi (ID; 1; 1977)
Carex enanderi (AK, BC, MT, YK; 161; 1909-2015)
Carex engelmannii (BC, ID, MT, WA; 118; 1889-2018)
Carex epapillosa (BC, ID, MT, OR, WA; 162; 1888-2020)
Carex exsiccata (BC, ID, MT, OR, WA; 397; 1880-2020)
var. globosa (BC; 2; 1897-1898)
var. pungens (BC; 1; 1962)
var. pungeus (BC; 2; 1895-1896)
Carex falcata (AK; 1; 1968)
Carex feta (BC, ID, OR, WA; 169; 1885-2018)
Carex filifolia (AK, BC, ID, MT, OR, WA, YK; 607; 1884-2018)
var. erostrata (OR; 3; 1967-1994)
var. filifolia (ID, OR, WA; 54; 1884-2018)
Carex filiformis (BC; 2; 1976-1984)
Carex fissuricola (ID, OR; 12; 1942-2010)
Carex flava (AK, BC, ID, MT, WA, YK; 243; 1889-2020)
ssp. viridula (BC; 3; 1942-1970)
Carex ×flavicans (YK; 4; 2006)
Carex foenea (AK, BC, ID, MT, YK; 74; 1892-2018)
Carex fracta (ID, MT, OR, WA; 69; 1893-2017)
Carex frankii (BC; 4; 1993)
Carex fuliginosa (AK, BC, ID, MT, YK; 293; 1929-2019)
Carex garberi (AK, BC, ID, MT, WA, YK; 168; 1892-2017)
ssp. garberi (BC; 10; 1992-2012)
Carex geophila (ID; 1; 1993)
Carex geyeri (BC, ID, MT, OR, WA; 883; 1880-2020)
Carex glacialis (AK, BC, MT, YK; 133; 1949-2017)
var. glacialis (BC; 1; 1978)
Carex glareosa (AK, BC, YK; 146; 1700-2019)
ssp. glareosa (AK, BC; 17; 1898-2012)
ssp. pribylovensis (AK; 2; 1941-1976)
Carex globosa (OR; 2; 1950)
Carex gmelini (AK; 9; 1970-1979)
Carex gmelinii (AK, BC; 155; 1897-2017)
Carex gracillima (ID; 1; 2000)
Carex granularis (BC, ID; 4; 1993-2006)
Carex gravida (MT; 31; 1955-2013)
Carex grenicola (BC; 1; 1984)
Carex grisea (OR; 1; 1992)
Carex gynocrates (AK, BC, ID, MT, OR, WA, YK; 315; 1912-2018)
Carex gynodynama (OR; 16; 1913-2012)
Carex halliana (OR, WA; 126; 1882-2017)
Carex hallii (ID, MT; 4; 1871-2008)
Carex harfordii (OR, WA; 9; 1929-2008)
Carex ×hartii (WA; 1; 1932)
Carex hassei (AK, BC, ID, MT, OR, WA; 53; 1880-2013)
Carex haydeniana (BC, ID, MT, OR, WA; 239; 1886-2019)
Carex heleonastes (AK, BC, ID, YK; 14; 1960-2010)
Carex hendersonii (BC, ID, OR, WA; 294; 1881-2019)
Carex heteroneura (BC, ID, MT, OR, WA; 127; 1886-2018)
Carex hirsutella (OR; 3; 2013-2014)
Carex hirta (BC, OR; 7; 1916-2014)
Carex holmgreniorum (ID; 1; 1993)
Carex holostoma (AK, YK; 38; 1950-2018)
Carex hoodii (AK, BC, ID, MT, OR, WA; 1177; 1881-2020)
var. nervosa (ID; 1; 1912)
Carex hystericina (BC, ID, MT, OR, WA; 152; 1886-2019)
Carex idahoa (ID, MT, OR; 61; 1895-2016)
Carex idahoensis (WA; 1; 1892)
Carex illota (BC, ID, MT, OR, WA; 463; 1882-2020)
Carex incurviformis (AK, BC, ID, MT, YK; 40; 1944-2017)
Carex infirminervia (AK, BC, MT, OR, WA; 42; 1894-2017)
Carex inops (BC, MT, OR, WA; 552; 1881-2019)
ssp. heliophila (BC, MT; 102; 1888-2011)
ssp. inops (BC, OR, WA; 327; 1881-2018)
Carex integra (AK, MT, OR, WA; 39; 1903-2019)
Carex interior (AK, BC, ID, MT, OR, WA, YK; 307; 1884-2020)
f. keweenawensis (MT; 1; 1955)
Carex interrupta (BC, ID, MT, OR, WA; 127; 1881-2019)
Carex intumescens (OR; 1; 2000)
Carex jonesii (BC, ID, MT, OR, WA; 170; 1892-2016)
Carex kelloggii (AK, BC, ID, MT, OR, WA, YK; 1537; 1881-2020)
var. impressa (AK, ID, OR, WA; 97; 1905-2016)
var. kelloggii (AK, BC, ID, MT, OR, WA, YK; 863; 1881-2020)
var. limnophila (AK, BC, OR, WA; 278; 1886-2017)
Carex klamathensis (OR; 23; 1930-2009)
Carex kobomugi (OR, WA; 12; 1907-2015)
Carex krausei (AK, BC, YK; 152; 1926-2019)
Carex lachenalii (AK, BC, ID, MT, YK; 560; 1909-2019)
Carex lacustris (BC, ID, MT, WA; 15; 1952-2014)
Carex laevicaulis (BC; 2; 1979-1992)
Carex laeviconica (ID, MT; 14; 1886-2017)
Carex laeviculmis (AK, BC, ID, MT, OR, WA; 627; 1880-2020)
Carex lapponica (AK, BC, MT, YK; 34; 1901-2017)
Carex lasiocarpa (AK, BC, ID, MT, OR, WA, YK; 719; 1880-2020)
Carex laxa (AK, YK; 5; 1995-2004)
Carex laxiculmis (AK; 1; 1992)
Carex lenticularis (AK, BC, ID, MT, OR, WA; 426; 1888-2016)
ssp. lipocarpa (AK; 1; 2016)
var. lenticularis (BC, ID, MT, WA; 43; 1908-2012)
Carex leporina (BC, ID, OR, WA; 112; 1890-2018)
Carex leporinella (ID, MT, OR, WA; 173; 1886-2020)
Carex leptalea (AK, BC, ID, MT, OR, WA, YK; 512; 1881-2020)
Carex leptopoda (BC, ID, MT, OR, WA; 335; 1882-2020)
var. leptopoda (BC; 1; 1956)
Carex limosa (AK, BC, ID, MT, OR, WA, YK; 395; 1881-2017)
Carex livida (AK, BC, ID, MT, OR, WA, YK; 271; 1901-2017)
Carex loliacea (AK, BC, YK; 73; 1943-2017)
Carex longii (BC, OR, WA; 7; 1998-2004)
Carex lupulina (ID, OR; 3; 1940-2003)
Carex luzulifolia (OR, WA; 2; 1892-1996)
Carex luzulina (BC, ID, MT, OR, WA; 625; 1880-2020)
Carex lyngbeyii (BC; 1; 2003)
Carex lyngbyei (AK, BC, ID, OR, WA; 660; 1871-2020)
ssp. cryptocarpa (AK, BC; 37; 1911-2005)
Carex machrochaeta (AK; 1; 2011)
Carex mackenziei (AK, BC, YK; 65; 1941-2017)
Carex macloviana (AK, BC, ID, MT, OR, WA, YK; 238; 1886-2019)
Carex macrocephala (AK, BC, ID, OR, WA; 272; 1882-2019)
ssp. anthericoides (AK; 3; 1951)
ssp. pachystachya (AK; 1; 1977)
Carex macrochaeta (AK, BC, OR, WA, YK; 561; 1869-2019)
Carex magellanica (AK, BC, ID, MT, WA, YK; 308; 1912-2020)
ssp. irrigua (AK, BC, ID, MT, WA, YK; 208; 1912-2020)
Carex marcida (MT, OR, WA; 6; 1885-1914)
var. debilis (OR; 1; 1885)
Carex marina (AK, YK; 56; 1939-2019)
Carex mariposana (ID, OR; 4; 1982-2005)
Carex maritima (AK, BC, MT, YK; 162; 1943-2017)
Carex media (AK, BC, ID, MT, OR, WA, YK; 325; 1904-2019)
ssp. media (BC; 4; 1972-1981)
Carex melanocarpa (AK; 1; 1968)
Carex membranacea (AK, BC, YK; 413; 1893-2019)
Carex mendocinensis (OR, WA; 78; 1884-2012)
Carex merritt-fernaldii (ID; 1; 1997)
Carex mertensii (AK, BC, ID, MT, OR, WA; 852; 1881-2020)
ssp. mertensii (BC; 2; 1957-1993)
var. mertensii (BC; 3; 1957-1960)
Carex mesochorea (WA; 2; 1898)
Carex michrochaeta (AK; 1; 2016)
ssp. michrochaeta (AK; 1; 2016)
Carex microchaeta (AK, BC, YK; 496; 1902-2019)
ssp. microchaeta (AK, BC, YK; 79; 1931-2016)
ssp. microcheata (BC; 1; 1998)
ssp. nesophila (AK, YK; 153; 1944-2019)
Carex microglochin (AK, BC, MT, YK; 72; 1931-2014)
Carex micropoda (AK, BC, ID, MT, OR, WA, YK; 313; 1700-2020)
Carex microptera (BC, ID, MT, OR, WA, YK; 1906; 1882-2020)
var. microptera (ID, MT, OR, WA; 210; 1895-2012)
Carex minicaulis (OR; 1; 1975)
Carex molesta (ID; 1; 1965)
Carex monile (ID, WA; 2; 1908-1929)
var. pacifica (ID, WA; 2; 1908-1929)
Carex multicaulis (ID, OR; 63; 1884-2016)
Carex muricata (AK, BC, ID, MT, WA; 58; 1886-1999)
var. lamprocarpa (ID, WA; 4; 1974-1994)
Carex nardina (AK, BC, ID, MT, OR, WA, YK; 525; 1700-2020)
Carex naticola (AK; 1; 1948)
Carex nebrascensis (ID, MT, OR, WA; 822; 1880-2020)
var. erucaeformis (WA; 1; 1919)
Carex nebraskensis (MT; 2; 1886-1888)
var. praevia (MT; 2; 1886-1888)
Carex nelsonii (MT; 13; 1976-2015)
Carex nervina (OR; 12; 1918-2010)
Carex neurophora (ID, MT, OR, WA; 180; 1892-2018)
Carex nigra (BC; 8; 1997-2014)
Carex nigricans (AK, BC, ID, MT, OR, WA, YK; 919; 1882-2020)
Carex norvegica (ID, MT, OR, YK; 18; 1887-2002)
Carex nova (ID, MT; 7; 1994-2010)
var. nova (ID, MT; 7; 1994-2010)
Carex nudata (ID, OR, WA; 141; 1882-2018)
Carex obnupta (AK, BC, OR, WA; 542; 1882-2020)
Carex obtusata (AK, BC, ID, MT, WA, YK; 191; 1887-2015)
Carex occidentalis (ID, MT; 11; 1895-2018)
Carex olympica (BC, WA; 10; 1890-1915)
Carex ovalis (AK, BC, ID, MT, OR, WA; 152; 1891-2018)
Carex pachycarpa (AK, ID, MT, OR, WA; 306; 1882-2020)
Carex pachystachya (AK, BC, ID, MT, OR, WA, YK; 1456; 1700-2020)
ssp. compacta (BC, MT, WA; 16; 1892-1972)
ssp. pachystachya (AK, BC, ID, MT, OR, WA; 135; 1883-1980)
var. compacta (ID; 5; 1910-1987)
Carex pallescens (BC, ID, MT, WA; 34; 1978-2014)
Carex ×paludivagans (AK; 8; 1926-2005)
Carex panicea (WA; 1; 1965)
Carex pansa (BC, OR, WA; 101; 1886-2012)
Carex parallela (AK; 1; 1968)
Carex parryana (AK, BC, ID, MT, WA, YK; 103; 1886-2011)
ssp. parryana (MT; 3; 1995-1997)
Carex pauciflora (AK, BC, WA, YK; 208; 1890-2018)
Carex paysonis (AK, BC, ID, MT, OR, WA, YK; 385; 1895-2020)
Carex peckii (AK, BC; 25; 1956-2014)
Carex pedunculata (BC; 5; 1978-2006)
Carex pellita (AK, BC, ID, MT, OR, WA, YK; 581; 1866-2020)
Carex pelocarpa (ID, MT, OR; 145; 1894-2020)
Carex pendula (BC, OR, WA; 61; 1999-2019)
Carex pensylvanica (BC, MT, OR, WA; 29; 1887-1994)
Carex petasata (BC, ID, MT, OR, WA, YK; 508; 1881-2019)
Carex petricosa (AK, BC, MT, YK; 149; 1943-2017)
var. petricosa (AK, YK; 18; 1957-2013)
Carex phaeocephala (AK, BC, ID, MT, OR, WA, YK; 890; 1880-2020)
Carex phaeolepis (OR; 1; 1894)
Carex ×physocarpioides (ID, OR, WA; 10; 1977-2000)
Carex pluriflora (AK, BC, OR, WA; 301; 1891-2019)
Carex podocarpa (AK, BC, ID, MT, WA, YK; 620; 1883-2020)
Carex polytrichoides (WA; 1; 1893)
Carex praeceptorum (BC, ID, MT, OR, WA; 120; 1886-2020)
Carex praegracilis (BC, ID, MT, OR, WA, YK; 762; 1884-2019)
var. simulata (BC; 1; 1978)
Carex prairea (BC, MT, YK; 14; 1975-2017)
Carex praticola (AK, BC, ID, MT, OR, WA, YK; 527; 1884-2020)
Carex preslii (BC, ID, MT, OR, WA; 353; 1882-2020)
Carex proposita (ID, MT, WA; 77; 1916-2020)
Carex pumila (OR; 4; 1916)
Carex pyrenaica (AK, BC, ID, MT, OR, WA, YK; 427; 1890-2015)
Carex radiata (ID, WA; 3; 1970-2001)
Carex ramenskii (AK, YK; 54; 1951-2019)
Carex rariflora (AK, YK; 201; 1945-2019)
ssp. rariflora (YK; 1; 2008)
Carex raynoldsii (BC, ID, MT, OR, WA; 534; 1881-2020)
Carex redowskiana (MT; 1; 1887)
Carex retrorsa (BC, ID, MT, OR, WA; 248; 1887-2020)
Carex retrorsa × Carex utriculata (WA; 1; 2010)
Carex reynoldsii (MT; 6; 1921-1960)
Carex richardsonii (BC, MT, OR; 14; 1893-2006)
Carex rigida (OR; 1; 1906)
var. inferalfoina (OR; 1; 1906)
Carex rossii (AK, BC, ID, MT, OR, WA, YK; 1261; 1882-2020)
Carex rostrata (AK, BC, ID, MT, YK; 531; 1888-2016)
Carex rotundata (AK, YK; 219; 1925-2019)
Carex rupestris (AK, BC, ID, MT, WA, YK; 260; 1943-2018)
ssp. rupestris (BC; 6; 1979-2008)
Carex rupestrius (BC; 1; 1996)
Carex rynchophysa (AK; 1; 1952)
Carex sabulosa (YK; 35; 1915-2009)
Carex salina (AK; 1; 1937)
Carex sartwellii (AK, BC, ID, MT, WA, YK; 83; 1887-2015)
var. occidentalis (BC; 1; 1918)
Carex saxatilis (AK, BC, ID, MT, OR, WA, YK; 759; 1892-2020)
var. laxa (BC; 7; 1970-1981)
Carex saxatilis × Carex utriculata (AK; 1; 2011)
Carex saximontana (BC, MT; 37; 1888-2009)
Carex scabriuscula (OR; 20; 1902-2007)
Carex scirpoidea (AK, BC, ID, MT, OR, WA, YK; 1016; 1800-2020)
ssp. pseudoscirpoidea (BC, ID, MT, OR, WA; 189; 1896-2020)
ssp. scirpoidea (AK, BC, ID, MT, OR, WA, YK; 194; 1904-2018)
ssp. stenochlaena (AK, BC, ID, MT, OR, WA, YK; 150; 1892-2020)
Carex scogganii (BC; 1; 1964)
Carex scoparia (BC, ID, MT, OR, WA; 191; 1882-2020)
var. amplicapitata (ID; 1; 1892)
Carex scopulorum (BC, ID, MT, OR, WA; 1224; 1882-2020)
var. bracteosa (BC, ID, MT, OR, WA; 679; 1882-2020)
var. prionophylla (ID, MT, OR, WA; 70; 1895-2007)
var. prionophyllum (BC, ID, MT, OR, WA; 164; 1895-2020)
var. scopulorum (ID, MT, OR; 81; 1897-2010)
Carex serpenticola (OR; 70; 1931-2007)
Carex serratodens (OR; 19; 1913-2006)
Carex sheldonii (ID, OR, WA; 97; 1897-2016)
Carex siccata (AK, BC, ID, MT, WA, YK; 166; 1893-2016)
var. obscurior (WA; 2; 1893)
Carex simulata (BC, ID, MT, OR, WA; 279; 1882-2019)
Carex specifica (OR; 2; 2003)
Carex spectabilis (AK, BC, ID, MT, OR, WA, YK; 922; 1883-2020)
Carex spicata (WA; 2; 2007)
Carex sprengelii (AK, BC, MT, WA; 109; 1886-2017)
Carex sprengelli (BC; 1; 2016)
Carex squarrosa (ID; 1; 1977)
Carex stellulata (ID; 1; 1913)
Carex stenoptila (ID, MT, WA; 15; 1956-2013)
Carex stevenii (AK, ID, MT; 32; 1965-2011)
Carex stipata (AK, BC, ID, MT, OR, WA; 786; 1880-2020)
ssp. stipa (ID, WA; 3; 1989-2003)
ssp. stipata (WA; 1; 1979)
var. stipata (AK, BC, ID, MT, OR, WA; 306; 1880-2020)
Carex straminea (WA; 2; 1907)
Carex straminiformis (ID, OR, WA; 116; 1882-2019)
Carex striata (MT; 1; ?)
Carex stricticulmis (WA; 1; 1908)
Carex stylosa (AK, BC, WA, YK; 202; 1904-2018)
Carex subbracteata (BC, OR, WA; 30; 1917-2016)
Carex suberecta (ID; 2; 1990-2017)
Carex subfusca (ID, MT, OR, WA; 258; 1896-2020)
Carex subnigricans (ID, OR, WA; 30; 1941-2011)
Carex subspathacea (AK, YK; 90; 1941-2019)
Carex suksdorfii (WA; 2; 1905)
var. ovalis (WA; 2; 1905)
Carex supina (AK, BC, YK; 136; 1939-2017)
ssp. spaniocarpa (AK, BC, YK; 78; 1943-2013)
Carex swanii (BC, ID; 3; 1995-2001)
Carex sychnocephala (AK, BC, ID, MT, OR, WA, YK; 84; 1890-2019)
Carex sylvatica (BC, WA; 26; 1994-2019)
Carex tahoensis (AK, BC, ID, MT, OR, WA, YK; 126; 1913-2020)
Carex tenera (BC, ID, MT, WA; 59; 1885-2016)
Carex tenuiculmis (BC; 1; 2015)
Carex tenuiflora (AK, BC, ID, MT, WA, YK; 196; 1926-2017)
Carex teretiuscula (BC, MT; 2; 1887-1908)
Carex tiogana (OR; 2; 2001-2007)
Carex tonsa (BC; 21; 1976-2015)
var. tonsa (BC; 16; 1976-2015)
Carex torreyi (BC, MT; 33; 1889-2017)
Carex torta (ID; 1; 2001)
Carex tribuloides (BC, MT, OR, WA; 28; 1959-2011)
var. tribuloides (BC, OR, WA; 14; 1989-2011)
Carex trisperma (BC; 25; 1954-2004)
Carex tumulicola (BC, ID, OR, WA; 95; 1893-2018)
Carex umbellata (BC; 1; 1982)
Carex unilateralis (BC, ID, OR, WA; 149; 1882-2018)
Carex ursina (AK, YK; 36; 1950-2015)
Carex utriculata (AK, BC, ID, MT, OR, WA, YK; 2088; 1878-2020)
Carex vagans (OR; 1; 1896)
Carex vaginata (AK, BC, ID, MT, WA, YK; 265; 1926-2017)
ssp. quasivaginata (AK; 1; 1992)
Carex vallicola (BC, ID, MT, OR, WA; 156; 1894-2019)
Carex vernacula (ID, MT, OR, WA; 53; 1884-2020)
Carex versicaria (BC; 1; 1977)
Carex vesicaria (BC, ID, MT, OR, WA; 523; 1883-2020)
Carex viridula (AK, BC, ID, MT, OR, WA, YK; 528; 1887-2020)
ssp. viridula (AK, BC, ID, MT, OR, WA, YK; 345; 1887-2020)
Carex vulgaris (WA; 1; 1882)
var. alpina (WA; 1; 1882)
Carex vulpinoidea (BC, ID, MT, OR, WA, YK; 224; 1893-2019)
Carex whitneyi (OR; 24; 1896-2010)
Carex williamsii (AK, YK; 109; 1899-2019)
Carex woodii (ID; 1; 2014)
Carex xerantica (AK, BC, ID, MT, OR; 87; 1921-2018)
Carex zikae (BC, OR, WA; 84; 1886-2010)
Cyperus acuminatus (BC, ID, MT, OR, WA; 36; 1880-2016)
Cyperus aggregatus (OR; 1; 1916)
Cyperus bipartitus (ID, MT, OR, WA; 96; 1924-2018)
Cyperus diandrus (OR, WA; 11; 2017-2019)
Cyperus difformis (ID, OR, WA; 23; 1997-2019)
Cyperus eragrostis (BC, ID, OR, WA; 121; 1903-2019)
Cyperus erythrorhizos (BC, ID, MT, OR, WA; 207; 1883-2019)
Cyperus esculentus (BC, ID, MT, OR, WA; 111; 1877-2019)
var. leptostachyus (BC, ID, OR, WA; 63; 1877-2019)
Cyperus filiculmis (ID; 1; 1937)
Cyperus fuscus (OR, WA; 11; 2013-2019)
Cyperus iria (OR; 2; 2014)
Cyperus lupulinus (ID, OR, WA; 13; 1886-2009)
ssp. lupulinus (ID, OR, WA; 13; 1886-2009)
Cyperus lupulinus × Cyperus schweinitzii (WA; 1; 2015)
Cyperus ×mesochorus (OR; 2; 2006)
Cyperus niger (OR; 4; 2007-2013)
Cyperus odoratus (OR, WA; 2; 1915-1998)
Cyperus retrorsus (BC; 1; 1995)
Cyperus schweinitzii (ID, MT, OR, WA; 49; 1941-2010)
Cyperus squarrosus (BC, ID, MT, OR, WA; 420; 1880-2020)
Cyperus strigosus (BC, ID, MT, OR, WA; 134; 1885-2020)
Dulichium arundinaceum (AK, BC, ID, MT, OR, WA; 286; 1880-2020)
Eleocharis acicularis (AK, BC, ID, MT, OR, WA, YK; 613; 1877-2019)
Eleocharis atropurpurea (BC, WA; 5; 1892-2014)
Eleocharis bella (ID, MT, OR, WA; 86; 1880-2016)
Eleocharis bolanderi (ID, OR, WA; 63; 1900-2019)
Eleocharis coloradoensis (BC, ID, WA; 24; 1939-2019)
Eleocharis compressa (BC, MT; 5; 1895-1997)
var. acutisquamata (BC; 1; 1951)
var. compressa (MT; 1; 1933)
Eleocharis decumbens (OR; 3; 1929-1982)
Eleocharis elliptica (BC, MT; 23; 1894-2014)
Eleocharis engelmannii (BC, ID, MT, OR, WA; 41; 1892-2017)
Eleocharis erythropoda (AK, BC, ID, MT, OR, WA, YK; 38; 1934-2016)
Eleocharis flavescens (MT, OR, WA; 4; 1881-1970)
var. flavescens (MT; 2; 1881-1897)
var. olivacea (WA; 1; 1889)
Eleocharis geniculata (BC; 11; 1939-2014)
Eleocharis intermedia (OR; 1; 1965)
Eleocharis kamtschatica (AK, BC; 82; 1940-2014)
Eleocharis macrostachya (AK, BC, ID, MT, OR, WA, YK; 550; 1880-2019)
Eleocharis macrostachya × Eleocharis obtusa (WA; 1; 2014)
Eleocharis mamillata (AK, BC, WA, YK; 41; 1926-2019)
ssp. mamillata (BC, WA; 6; 2003-2015)
Eleocharis microstachya (OR; 1; 2017)
Eleocharis montevidensis (ID, OR; 2; 1932-1972)
Eleocharis nitida (AK, BC; 8; 1931-2013)
Eleocharis obtusa (AK, BC, ID, OR, WA; 292; 1877-2019)
Eleocharis ovata (BC, ID, MT, OR, WA; 206; 1886-2019)
Eleocharis palustris (AK, BC, ID, MT, OR, WA, YK; 1535; 1881-2020)
ssp. alustris (AK; 3; 2002)
ssp. pacifica (BC; 1; 2007)
var. calva (OR; 2; 1940)
Eleocharis parishii (ID, OR; 20; 1909-2007)
Eleocharis parvula (AK, BC, ID, OR, WA; 42; 1915-2019)
Eleocharis quadrangulata (OR; 6; 1996-1997)
Eleocharis quinqueflora (AK, BC, ID, MT, OR, WA, YK; 343; 1887-2018)
Eleocharis rostellata (BC, ID, MT, OR, WA; 139; 1882-2017)
Eleocharis suksdorfiana (BC, ID, OR, WA; 96; 1882-2020)
Eleocharis suskdorfiana (WA; 1; 2006)
Eleocharis tenuis (BC, ID, MT, WA; 38; 1892-2013)
var. verrucosa (BC; 1; 1972)
Eleocharis uniglumis (AK, BC, ID, WA; 21; 1916-2005)
Eriophorum angustifolium (AK, BC, ID, MT, OR, WA, YK; 1137; 1862-2020)
ssp. angustifolium (AK, BC, ID, MT, OR, WA, YK; 298; 1862-2020)
ssp. triste (AK, BC, YK; 75; 1939-2012)
var. angustifolium (WA; 1; 2003)
var. major (AK; 1; 1939)
var. scabrescula (AK; 1; 1933)
Eriophorum brachyantherum (AK, BC, ID, MT, WA, YK; 147; 1927-2017)
Eriophorum callitrix (AK, BC, MT, YK; 111; 1933-2018)
Eriophorum chamissonis (AK, BC, ID, MT, OR, WA, YK; 494; 1887-2020)
f. albidum (WA; 1; 1928)
var. chamissonis (AK, BC; 4; 1971-2008)
var. leucothrix (AK; 1; 1967)
Eriophorum crinigerum (OR; 65; 1884-2009)
Eriophorum gracile (AK, BC, ID, MT, OR, WA, YK; 225; 1886-2019)
Eriophorum komarovii (AK; 31; 1954-2005)
Eriophorum lanatum (OR; 2; 2018)
var. integrifolium (OR; 2; 2018)
Eriophorum ×medium (AK, BC, YK; 25; 1900-2009)
ssp. medium (BC, YK; 4; 2005-2009)
Eriophorum russeolum (AK, WA, YK; 241; 1885-2019)
ssp. leiocarpum (AK, YK; 213; 1921-2019)
var. leucoelsix (AK; 1; 1953)
Eriophorum scheuchzeri (AK, BC, MT, YK; 351; 1904-2019)
ssp. cheuchzeri (AK, YK; 41; 1951-2003)
ssp. leiocarpum (AK; 1; 1984)
var. scheuchzeri (AK, BC; 2; 1981-1984)
Eriophorum vaginatum (AK, BC, MT, YK; 224; 1892-2017)
ssp. vaginatum (AK, BC, YK; 16; 1974-2014)
Eriophorum virginicum (BC, WA; 26; 1990-2007)
Eriophorum viridicarinatum (AK, BC, ID, MT, WA, YK; 149; 1892-2017)
Fuirena scirpoidea (MT; 1; 1999)
Isolepis cernua (AK, BC, OR, WA; 124; 1882-2016)
var. californicus (BC; 1; 1957)
Isolepis pseudosetacea (BC; 6; 2009-2014)
Isolepis setacea (BC, OR, WA; 23; 1919-2018)
Kobresia filifolia (AK; 2; 1993)
ssp. subfilifolia (AK; 2; 1993)
Kobresia hyperborea (AK; 1; 1948)
var. lepagei (AK; 1; 1948)
Kobresia myosuroides (AK, BC, ID, MT, OR, WA, YK; 281; 1900-2018)
Kobresia sibirica (AK, BC, MT, YK; 100; 1959-2019)
Kobresia simpliciuscula (AK, BC, ID, MT, OR, YK; 172; 1941-2018)
Lipocarpha aristulata (OR, WA; 12; 1877-2015)
Lipocarpha drummondii (WA; 11; 1893-1912)
Lipocarpha micrantha (BC, ID, MT, OR, WA; 46; 1885-2019)
Lipocarpha occidentalis (OR, WA; 6; 1881-1996)
Rhynchospora alba (AK, BC, ID, OR, WA; 217; 1890-2020)
Rhynchospora capillacea (BC; 11; 1984-2009)
Rhynchospora capillaris (BC; 1; 1990)
f. leviseta (BC; 1; 1990)
Rhynchospora capitellata (OR; 11; 1919-1997)
Schoenoplectus acutus (AK, BC, ID, MT, OR, WA, YK; 678; 1877-2019)
var. occidentalis (OR; 2; 1997)
Schoenoplectus americanus (BC, ID, MT, OR, WA; 287; 1885-2014)
Schoenoplectus californicus (OR; 5; 2009)
Schoenoplectus heterochaetus (ID, MT, OR, WA; 10; 1896-1997)
Schoenoplectus ×kuekenthalianus (OR, WA; 7; 2003-2008)
Schoenoplectus lacustris (BC, WA; 3; 1908-1972)
Schoenoplectus mucronatus (OR, WA; 16; 1998-2016)
Schoenoplectus pungens (AK, BC, ID, MT, OR, WA; 431; 1882-2019)
Schoenoplectus saximontanus (BC, WA; 11; 1988-2004)
var. saximontanus (BC; 1; 1994)
Schoenoplectus subterminalis (AK, BC, ID, MT, OR, WA; 122; 1882-2016)
Schoenoplectus tabernaemontani (AK, BC, ID, MT, OR, WA, YK; 506; 1877-2019)
Schoenoplectus torreyi (MT; 2; 1901-1903)
Schoenoplectus triqueter (BC, OR, WA; 16; 1982-2011)
Scirpus acutus (BC, YK; 3; 1944-1970)
var. acutus (BC, YK; 3; 1944-1970)
Scirpus atrocinctus (BC, ID, MT, OR, WA; 37; 1950-2020)
Scirpus atrovirens (BC, MT, WA; 7; 1921-2013)
Scirpus caespitosus (AK, YK; 2; 1946-1966)
ssp. austriacus (YK; 1; 1966)
ssp. austriasa (AK; 1; 1946)
Scirpus cernuus (BC; 1; 1982)
var. brachypodus (BC; 1; 1982)
Scirpus cespitosus (AK; 1; 1932)
ssp. callosus (AK; 1; 1932)
Scirpus congdonii (OR, WA; 90; 1903-2014)
Scirpus cyperinus (BC, ID, MT, OR, WA; 142; 1938-2020)
Scirpus georgianus (BC, OR; 42; 1980-2017)
Scirpus macounii (BC; 1; 1901)
Scirpus microcarpus (AK, BC, ID, MT, OR, WA, YK; 1251; 1880-2020)
var. confertus (BC; 1; 1958)
Scirpus nubrotinctus (MT; 1; 1968)
Scirpus pallidus (BC, ID, MT, OR, WA; 118; 1895-2019)
Scirpus pendulus (MT, OR; 64; 1884-2018)
Scirpus pungens × Scirpus triqueter (WA; 1; 2002)
Scirpus syluaticus (BC; 2; 1963)
ssp. digynus (BC; 2; 1963)
Trichophorum alpinum (AK, BC, ID, MT, WA, YK; 98; 1904-2019)
Trichophorum cespitosum (AK, BC, ID, MT, OR, WA, YK; 428; 1893-2017)
ssp. cespitosum (BC; 4; 1972-1978)
Trichophorum pumilum (AK, BC, ID, MT, YK; 35; 1957-2017)