Taxon: Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey

Genus: Pascopyrum
Family: Poaceae (alt.Gramineae)
  Subfamily: Pooideae
      Tribe: Triticeae
Nomen number: 102367
Place of publication: Amer. J. Bot. 72:772. 1985 (Á. Löve, Taxon 29:168, 547. 1980, nom. inval.)
Comment: Löve failed to provide a description or diagnosis on p. 168, so the genus Pascopyrum was not validly published until a later issue (p. 547), when he then failed to fully cite a basionym for P. smithii
Name Verified on: 09-Nov-2007 by ARS Systematic Botanists. Last Changed: 11-Aug-2009
Species priority site is: Western Regional PI Station (W6)
Accessions: 107 in National Plant Germplasm System (GoogleMap)

Common names:

Economic Importance:

  • Environmental: erosion control (fide Grass VarUSA)
  • Environmental: revegetator (fide Grass VarUSA)
  • Animal food: fodder (fide Grass VarUSA)
  • Animal food: forage (fide Grass VarUSA)

Distributional Range:


  • Northern America

    • Eastern Canada: Canada - Ontario
    • North-Central U.S.A.: United States - Illinois, - Iowa, - Kansas, - Minnesota, - Nebraska, - North Dakota, - Oklahoma, - South Dakota, - Wisconsin
    • Northeastern U.S.A.: United States - Michigan
    • 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 - Saskatchewan, - Alberta, - Manitoba, - British Columbia

  • Naturalized:

  • Northern America

    • : North America


  • Alderson, J. & W. C. Sharp Grass varieties in the United States, U.S.D.A. Agric. Handb. 170, rev. ed. 1995 (Grass VarUSA)
  • Barkworth, M. E. & D. R. Dewey 1985. Genomically based genera in the perennial Triticeae of North America: identification and membership Amer. J. Bot. 72:769.
  • Barkworth, M. E. et al. 1983. New generic concepts in the Triticeae of the Intermountain Region: keys and comments Great Basin Naturalist 43:569.
  • Dewey, D. R. 1983. Historical and current taxonomic perspectives of Agropyron, Elymus and related genera Crop Sci. (Madison) 23:640.
  • Englert, J. M. et al. USDA-NRCS Improved conservation plant materials released by NRCS and cooperators. 1999- (NRCS Cons Pl Mat)
  • FNA Editorial Committee Flora of North America. 1993- (F NAmer)
  • International Seed Testing Association A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2. 1982 (Mult Glossary Crops)
  • Löve, Á. 1984. Conspectus of the Triticeae Feddes Repert. 95:484.
  • Markle, G. M. et al., eds. Food and feed crops of the United States, ed. 2. 1998 (Food Feed Crops US)


Check other web resources for Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey :