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World Checklist of Selected Plant Families (WCSP)

Agropyron caninum var. majus Scribn., Bull. Torrey Bot. Club 10: 32 (1883), nom. illeg.

This name is a synonym.

Accepted Name: Elymus arizonicus (Scribn. & J.G.Sm.) Gould, Madroņo 9: 125 (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.
Original Compiler: W.D.Clayton, R.Govaerts, K.T.Harman, H.Williamson & M.Vorontsova