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Taxon: Achnatherum robustum (Vasey) Barkworth

Genus: Achnatherum
Family: Poaceae (alt.Gramineae)
Subfamily: Pooideae
Tribe: Stipeae
Nomen number: 402278
Place of publication: Phytologia 74:12. 1993
Link to protologue:
Comment: based on Stipa viridula var. robusta Vasey, which is conserved (nom. cons.) with a conserved type (Shenzhen ICN Art. 14.9 & App. IV)
Name Verified on: 02-Jun-1995 by ARS Systematic Botanists. Last Changed: 21-Mar-2019
Species priority site is: Western Regional PI Station (W6)
Accessions: 7 (7 active, 6 available) in National Plant Germplasm System (GoogleMap)


Common names:

  • sleepy grass  (Source: Grass US) - English

Economic Importance:

  • Vertebrate poisons: mammals (fide Kingsbury, as Stipa robusta; Taxon 42:712. 1993, as Stipa robusta); mammals (fide Kingsbury, as Stipa robusta; Taxon 42:712. 1993, as Stipa robusta)

Distributional Range:


    Northern America
    • NORTH-CENTRAL U.S.A.: United States [Kansas (Greeley Co.), South Dakota (w.)]
    • NORTHWESTERN U.S.A.: United States [Colorado, Wyoming (s.)]
    • SOUTH-CENTRAL U.S.A.: United States [New Mexico]
    • SOUTHWESTERN U.S.A.: United States [Arizona]
    • Mexico (n.)


  1. Barkworth, M. E. 1993. (1072) Proposal to conserve the type of Stipa robusta [=Achnatherum robustum] (Poaceae) under Art. 69.3 (Taxon) 42:711.
  2. Brummitt, R. K. 1995. Report of the Committee for Spermatophyta: 43 (Taxon) 44:610.
  3. FNA Editorial Committee Flora of North America. (F NAmer)
  4. Hitchcock, A. S. Manual of the grasses of the United States, ed. 2. (Grass US)

Check other web resources for Achnatherum robustum (Vasey) Barkworth :

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2019. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=402278. Accessed 19 April 2019.