Achnatherum hymenoides (Roem. & Schult.) Barkworth GRIN-Global

Taxon: Achnatherum hymenoides (Roem. & Schult.) Barkworth

Summary

Genus:

Achnatherum

Family:

Poaceae (alt. Gramineae)

Subfamily:

Pooideae

Tribe:

Stipeae

Nomen number:

402285

Place of publication:

Phytologia 74:7. 1993

Verified:

06/02/1995 ARS Systematic Botanists.

Accessions:

5 (5 active, 4 available) in Australian Pastures Genebank. (Map it)

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Basionym

Stipa hymenoides Roem. & Schult.

Homotypic Synonym(s)

Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper

Heterotypic Synonym(s)

Eriocoma cuspidata Nutt.

No images

Reference(s)

Alderson, J. & W. C. Sharp. Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. 1995
Cronquist, A. et al. Intermountain flora. 1972-
Englert, J. M. et al. 1999. USDA-NRCS Improved conservation plant materials released by NRCS and cooperators. 1999-
Hickman, J. C., ed. The Jepson manual: higher plants of California. 1993
Markle, G. M. et al., eds. Food and feed crops of the United States, ed. 2. 1998
Rehm, S. Multilingual dictionary of agronomic plants. 1994
Welsh, S. L. et al. A Utah flora. 1993
Webster's third new international dictionary. 1961

Common names

English
Indian ricegrass –
mountain-rice –

Distribution

order_code	Status	Continent	Subcontinent	Country	State
1	Native	Northern America	North-Central U.S.A.	United States	Kansas
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado
1	Native	Northern America	Northwestern U.S.A.	United States	Idaho
1	Native	Northern America	Northwestern U.S.A.	United States	Montana
1	Native	Northern America	Northwestern U.S.A.	United States	Oregon
1	Native	Northern America	Northwestern U.S.A.	United States	Washington
1	Native	Northern America	Northwestern U.S.A.	United States	Wyoming
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico
1	Native	Northern America	South-Central U.S.A.	United States	Texas
1	Native	Northern America	Southwestern U.S.A.	United States	Arizona
1	Native	Northern America	Southwestern U.S.A.	United States	California
1	Native	Northern America	Southwestern U.S.A.	United States	Nevada
1	Native	Northern America	Southwestern U.S.A.	United States	Utah
1	Native	Northern America	Western Canada	Canada	Alberta
1	Native	Northern America	Western Canada	Canada	British Columbia
1	Native	Northern America	Western Canada	Canada	Manitoba
1	Native	Northern America	Western Canada	Canada	Saskatchewan

Native
Northern America

NORTH-CENTRAL U.S.A.: United States [Kansas, Minnesota, Nebraska, North Dakota, Oklahoma, South Dakota]
NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington, Wyoming]
SOUTH-CENTRAL U.S.A.: United States [New Mexico, Texas]
SOUTHWESTERN U.S.A.: United States [Arizona, California, Nevada, Utah]
WESTERN CANADA: Canada [Alberta, British Columbia, Manitoba, Saskatchewan]

Economic Uses

Usage	Type	Note	Reference
Animal food	forage		Cronquist, A. et al. Intermountain flora. 1972-

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2025. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://apg.pir.sa.gov.au/gringlobal/taxon/taxonomydetail?id=402285. Accessed 19 July 2025.