Sphenopholis obtusata (Michx.) Scribn. GRIN-Global

Taxon: Sphenopholis obtusata (Michx.) Scribn.

Summary

Genus:

Sphenopholis

Family:

Poaceae (alt. Gramineae)

Subfamily:

Pooideae

Tribe:

Poeae

Subtribe:

Aveninae

Nomen number:

35246

Place of publication:

Rhodora 8:144. 1906

Verified:

04/07/2000 ARS Systematic Botanists.

Accessions:

0 (0 active, 0 available) in National Plant Germplasm System.

Other conspecific taxa

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

Basionym

Aira obtusata Michx.

No images

Reference(s)

Cronquist, A. et al. Intermountain flora. 1972-
Erdman, K. S. 1965. Taxonomy of the genus Sphenopholis (Gramineae). Iowa State J. Sci. 39:297.
Finot, V. L. et al. 2004. A revision of Trisetum, Peyritschia, and Sphenopholis (Poaceae: Pooideae: Aveninae) in Mexico and Central America. Ann. Missouri Bot. Gard. 91:5-6.
Gleason, H. A. & A. Cronquist. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2. 1991
Hitchcock, A. S. Manual of the grasses of the West Indies. 1936
Martin, W. C. & C. R. Hutchins. A flora of New Mexico. 1980
McGregor, R. L. et al. (The Great Plains Flora Association). Flora of the Great Plains. 1986
McVaugh, R. Flora Novo-Galiciana. 1983-
Strausbaugh, T. D. & E. L. Core. Flora of West Virginia, ed. 2. 1978
Voss, E. Michigan flora. 1972-
Webster's third new international dictionary. 1961

Common names

English
prairie grass –
prairie wedge grass –
wedge grass –

Distribution

order_code	Status	Continent	Subcontinent	Country	State
1	Native	Northern America	Eastern Canada	Canada	Newfoundland
1	Native	Northern America	Eastern Canada	Canada	Nova Scotia
1	Native	Northern America	Eastern Canada	Canada	Ontario
1	Native	Northern America	Eastern Canada	Canada	Quebec
1	Native	Northern America	North-Central U.S.A.	United States	Illinois
1	Native	Northern America	North-Central U.S.A.	United States	Iowa
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	Missouri
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	North-Central U.S.A.	United States	Wisconsin
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana
1	Native	Northern America	Northeastern U.S.A.	United States	Maine
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey
1	Native	Northern America	Northeastern U.S.A.	United States	New York
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania
1	Native	Northern America	Northeastern U.S.A.	United States	Rhode Island
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia
1	Native	Northern America	Northern Mexico	Mexico	Baja Norte
1	Native	Northern America	Northern Mexico	Mexico	Chihuahua
1	Native	Northern America	Northern Mexico	Mexico	Coahuila
1	Native	Northern America	Northern Mexico	Mexico	Durango
1	Native	Northern America	Northern Mexico	Mexico	Nuevo Leon
1	Native	Northern America	Northern Mexico	Mexico	Sonora
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	Southeastern U.S.A.	United States	Alabama
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware
1	Native	Northern America	Southeastern U.S.A.	United States	Florida
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana
1	Native	Northern America	Southeastern U.S.A.	United States	Maryland
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia
1	Native	Northern America	Southern Mexico	Mexico	Aguascalientes
1	Native	Northern America	Southern Mexico	Mexico	Federal District
1	Native	Northern America	Southern Mexico	Mexico	Guanajuato
1	Native	Northern America	Southern Mexico	Mexico	Jalisco
1	Native	Northern America	Southern Mexico	Mexico	Oaxaca
1	Native	Northern America	Southern Mexico	Mexico	Puebla
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	Subarctic America	Canada	Northwest Territory
1	Native	Northern America	Subarctic America	United States	Alaska
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
1	Native	Southern America	Caribbean	Bermuda
1	Native	Southern America	Caribbean	Dominican Republic

Native
Northern America

EASTERN CANADA: Canada [Newfoundland, Nova Scotia, Ontario, Quebec]
NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin]
NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia]
NORTHERN MEXICO: Mexico [Baja Norte, Chihuahua, Coahuila, Durango, Nuevo Leon, Sonora]
NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington, Wyoming]
SOUTH-CENTRAL U.S.A.: United States [New Mexico, Texas]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia]
SOUTHERN MEXICO: Mexico [Aguascalientes, Federal District, Guanajuato, Jalisco, Oaxaca, Puebla]
SOUTHWESTERN U.S.A.: United States [Arizona, California, Nevada, Utah]
SUBARCTIC AMERICA: Canada [Northwest Territory], United States [Alaska]
WESTERN CANADA: Canada [Alberta, British Columbia, Manitoba, Saskatchewan]

Southern America

CARIBBEAN: Bermuda, Dominican Republic

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://ausgenebank.agriculture.vic.gov.au/gringlobal/taxon/taxonomydetail?id=35246. Accessed 25 May 2026.