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

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

• (-) Festuca idahoensis subsp. idahoensis Elmer
• (-) Festuca idahoensis var. idahoensis Elmer
• (=) Festuca ovina var. ingrata Hack. ex Beal

Distributional Range:

Native

Northern America

• WESTERN CANADA: Canada [Alberta, British Columbia, Saskatchewan (s.w.)]
• NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington]
• SOUTH-CENTRAL U.S.A.: United States [New Mexico (n.)]
• SOUTHWESTERN U.S.A.: United States [California (n.), Nevada (n.), Utah]

References:

1. Aiken, S. G. et al. 1996-. Festuca of North America: descriptions, illustrations, identification, and information retrieval.
2. Alderson, J. & W. C. Sharp. 1995. Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. CRC Press. Note: Revised version of AH 170
3. Cronquist, A. et al. 1972-. Intermountain flora.
4. Food and Agriculture Organization of the United Nations (FAO). 2010. Ecocrop (on-line resource). URL: http://ecocrop.fao.org/ecocrop/srv/en/cropListDetails?code=&relation=beginsWith&name=Festuca+idahoensis&quantity=1 target='_blank'
5. Hanson, A. A. 1972. Grass varieties in the United States
6. Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California
7. Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. Note: with two varieties
8. Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
9. Welsh, S. L. et al. 1993. A Utah flora. Note: = Festuca ovina var. ingrata Hack. ex Beal

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=16665. Accessed 5 October 2024.