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World Checklist of Selected Plant Families (WCSP)

Agropyron divergens var. inerme Scribn. & J.G.Sm., Bull. Div. Agrostol. U.S.D.A. 4: 27 (1897).

This name is a synonym.

Accepted Name: Pseudoroegneria spicata (Pursh) Á.Löve, Taxon 29: 168 (1980).
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. inerme (Scribn. & J.G.Sm.) A.Heller, Cat. N. Amer. Pl., ed. 2: 3 (1900).

Agropyron inerme (Scribn. & J.G.Sm.) Rydb., Bull. Torrey Bot. Club 36: 539 (1909).

Agropyron spicatum f. inerme (Scribn. & J.G.Sm.) Beetle, Leafl. W. Bot. 6: 162 (1951).

Pseudoroegneria spicata subsp. inermis (Scribn. & J.G.Sm.) Á.Löve, Taxon 29: 169 (1980).

Roegneria spicata f. inermis (Scribn. & J.G.Sm.) Beetle, Phytologia 55: 213 (1984).

Elymus spicatus subsp. inermis (Scribn. & J.G.Sm.) Hanelt, Mansfeld's Encycl. 5: 2539 (2001).

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