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

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

• Basionym: Elymus condensatus J. Presl

Common names:

• giant wild rye  (Source: Food Feed Crops US) - English
• giant-ryegrass  (Source: Websters Dict) - English

Economic Importance:

• Animal food: potential as forage;

Distributional Range:

Native

Northern America

• SOUTHWESTERN U.S.A.: United States [California (s.w. & w.-c.)]
• NORTHERN MEXICO: Mexico [Baja California (Norte) (n.w.)]

References:

1. Barkworth, M. E. & R. J. Atkins. 1984. Leymus Hochst. (Gramineae: Triticeae) in North America: taxonomy and distribution. Amer. J. Bot. 71:618.
2. FNA Editorial Committee. 1993-. Flora of North America.
3. Hanson, A. A. 1972. Grass varieties in the United States Note: = Elymus
4. Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California
5. Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland.
6. Löve, Á. 1984. Conspectus of the Triticeae. Feddes Repert. 95:483.
7. Markle, G. M. et al., eds. 1998. Food and feed crops of the United States, ed. 2
8. Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:423.
9. Wang, R. R.-C. 2011. Chapter 2. Agropyron and Psathyrostachys. Wild crop relatives: genomic and breeding resources, cereals 77-108. Note: this review mentioned the diversity of genome constitution in Triticeae, all types (NsXm) found in Leymus able to cross with wheat
10. Yang, R.-W. et al. 2006. The genetic diversity among Leymus species based on random amplified microsatellite polymorphism (RAMP). Genet. Resources Crop Evol. 53:139-144. Note: this study included one USDA accession (PI 442483)
11. Yen, C. et al. 2009. Synopsis of Leymus Hochst. (Triticeae: Poaceae). J. Syst. Evol. 47:77.
12. 1961. Webster's third new international dictionary. Note: = Elymus condensatus

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=102176. Accessed 18 May 2024.