''Eriocoma'' is a genus of plants in the grass family (

Poaceae Poaceae ( ), also called Gramineae ( ), is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos, the grasses of natural grassland and species cultivate ...

). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to northern Mexico.

Species

27 species are currently accepted: *'' Eriocoma alta'' – northeastern Mexico *''

Eriocoma arida ''Eriocoma arida'' is a species of Poaceae, grass known by the common name Mormon needlegrass. It is native to the southwestern United States and northeastern Mexico. Description ''Eriocoma arida'' is a tuft-forming perennial bunchgrass without ...

'' – southwestern United States and northeastern Mexico *'' Eriocoma arnowiae'' – Utah *'' Eriocoma × bloomeri'' – western United States *'' Eriocoma bracteata'' – northwestern Mexico *'' Eriocoma contracta'' – Montana, Wyoming, Colorado *'' Eriocoma coronata'' – California and northwestern Mexico *''

Eriocoma curvifolia ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – New Mexico, Texas, and northeastern Mexico *''

Eriocoma hendersonii ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Washington, Oregon, and Idaho *''

Eriocoma hymenoides ''Eriocoma hymenoides'' (common names: Indian ricegrass and sand rice grass) is a cool-season, perennial bunchgrass. It is native to western North America. Description In the wild, ''Eriocoma hymenoides'' typically grows tall and wide.Tirmen ...

'' – Yukon through western and central Canada, western and central United States, and northern Mexico *''

Eriocoma latiglumis ''Eriocoma latiglumis'' is a species of grass known by the common names wide-glumed needlegrass and Sierra needlegrass. It is a bunchgrass is endemic to montane California, where it grows in the mountain meadows and pine forests of the Sierra ...

'' – central California *''

Eriocoma lemmonii ''Eriocoma lemmonii'' is a species of grass known by the common name Lemmon's needlegrass. It is native to western North America, where its distribution extends from British Columbia to southern California. This perennial grass forms a dense clu ...

'' – British Columbia and western United States *''

Eriocoma lettermanii ''Eriocoma lettermanii'' is a species of grass known by the common name Letterman's needlegrass. It is native to the western United States from California and Oregon to Montana and New Mexico, where it is a resident of several types of habitat. ...

'' – western United States *''

Eriocoma lobata ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – southeastern Arizona to western Texas and northeastern Mexico *''

Eriocoma nelsonii ''Eriocoma nelsonii'' is a species of grass known by the common names Columbia needlegrass, subalpine needlegrass, and western needlegrass. It is native to western North America, from Yukon and British Columbia to California to Texas.Zouhar, Kri ...

'' – Yukon to western Canada and western and central United States *''

Eriocoma nevadensis ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – western United States (California and Oregon to Wyoming and Colorado) *''

Eriocoma occidentalis ''Eriocoma occidentalis'' is a species of grass known by the common name western needlegrass. It is native to western North America from British Columbia to California, Colorado, and Arizona and in northeastern Mexico (Chihuahua), where it grows ...

'' – western Canada, western United States, and northeastern Mexico *''

Eriocoma parishii ''Eriocoma parishii'' is a species of Poaceae, grass known by the common name Parish's needlegrass.

'' – southwestern United States and northeastern Mexico *'' Eriocoma perplexa'' – Utah, Colorado, Arizona, New Mexico, Texas, and northeastern Mexico *''

Eriocoma pinetorum ''Eriocoma pinetorum'' is a species of grass known by the common names pinewoods needlegrass and pine needlegrass. It is native to most of the western United States from California to Montana to New Mexico, where it grows in woodland and forest i ...

'' – western United States *''

Eriocoma richardsonii ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Alaska through western and central Canada to Washington, Colorado, and South Dakota *''

Eriocoma robusta ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Wyoming and South Dakota to northeastern Mexico *''

Eriocoma scribneri ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Wyoming, Colorado, New Mexico, Oklahoma, and Texas *''

Eriocoma swallenii ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Idaho and western Wyoming *''

Eriocoma thurberiana ''Eriocoma thurberiana'' is a species of grass known by the common name Thurber's needlegrass. It is native to the western United States, where it occurs from Washington to California and east to Montana and Wyoming.Archer, Amy J. 2000''Achnather ...

'' – western United States *''

Eriocoma valdesii ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – northeastern Mexico *''

Eriocoma wallowaensis ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – Oregon *''

Eriocoma webberi ''Eriocoma'' is a genus of plants in the grass family (Poaceae). It includes 27 species of grasses native to western and central North America. Species range from Alaska through western and central Canada, western and central United States, to no ...

'' – western United States (Oregon and California to Colorado) and South Dakota

References

{{Taxonbar, from=Q15963700 Flora of the Nearctic realm Poaceae genera Taxa named by Thomas Nuttall Grasses of North America