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

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

• Basionym: Aira obtusata Michx.

Common names:

• prairie grass  (Source: Websters Dict) - English
• prairie wedge grass  (Source: F WVa) - English
• wedge grass  (Source: Glea Cron ed2) - English

Distributional Range:

Native

Northern America

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

Southern America

• CARIBBEAN: Bermuda, Dominican Republic

References:

1. Cronquist, A. et al. 1972-. Intermountain flora.
2. Erdman, K. S. 1965. Taxonomy of the genus Sphenopholis (Gramineae). Iowa State J. Sci. 39:297.
3. 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.
4. Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
5. Hitchcock, A. S. 1936. Manual of the grasses of the West Indies.
6. Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
7. McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
8. McVaugh, R. 1983-. Flora Novo-Galiciana.
9. Strausbaugh, T. D. & E. L. Core. 1978. Flora of West Virginia, ed. 2.
10. Voss, E. 1972-. Michigan flora.
11. Wofford, B. E. Database of Tennessee vascular plants (on-line resource). URL: https://herbarium.utk.edu/vascular/vascular-database.php?CategoryID=Monocots&FamilyID=Poaceae&GenusID=Sphenopholis&SpeciesID=obtusata%20(Michx.)%20Scribn.%20var.%20obtusata target='_blank' Note: recognizes two vars.
12. 1961. Webster's third new international dictionary.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2024. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: http://gringlobal.iita.org/gringlobal/taxonomydetail.aspx?id=35246. Accessed 5 July 2024.