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World Checklist of Selected Plant Families (WCSP)

Agropyron smithii var. palmeri (Scribn. & J.G.Sm.) A.Heller, Cat. N. Amer. Pl., ed. 2: 3 (1900).

This name is a synonym.

Accepted Name: Elymus smithii (Rydb.) Gould, Madroņo 9: 127 (1947).
Family: Poaceae
The Poaceae generic classification system originated from the GrassBase database, originally based on Genera Graminum (1985). Work is in progress to update this to a new globally accepted and collaborative generic classification based on the latest research.
Homotypic Names:

* Agropyron spicatum var. palmeri Scribn. & J.G.Sm., Bull. Div. Agrostol. U.S.D.A. 4: 33 (1897).

Agropyron occidentale var. palmeri (Scribn. & J.G.Sm.) Scribn., Circ. Div. Agrostol. U.S.D.A. 27: 9 (1900).

Agropyron palmeri (Scribn. & J.G.Sm.) Rydb., Fl. Colorado: 55 (1906).

* Basionym/Replaced Synonym

Original Compiler: W.D.Clayton, R.Govaerts, K.T.Harman, H.Williamson & M.Vorontsova