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World Checklist of Selected Plant Families (WCSP)

Agropyron × yukonense Scribn. & Merr., Contr. U.S. Natl. Herb. 13: 85 (1910).

This name is a synonym.

Accepted Name: Elymus × yukonensis (Scribn. & Merr.) 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:

Elymus × yukonensis (Scribn. & Merr.) Á.Löve, Taxon 29: 168 (1980).

Elytrigia dasystachya subsp. yukonensis (Scribn. & Merr.) D.R.Dewey, Brittonia 35: 31 (1983).

Elymus lanceolatus subsp. yukonensis (Scribn. & Merr.) Á.Löve, Feddes Repert. 95: 470 (1984).

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