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World Checklist of Selected Plant Families (WCSP)

Elymus trachycaulus var. unilateralis (Vasey) Beetle, Phytologia 55: 210 (1984).

This name is a synonym.

Accepted Name: Elymus violaceus (Hornem.) J.Feilberg, Meddel. Grønland, Biosci. 15: 12 (1984).
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 caninum var. unilaterale Vasey, Contr. U.S. Natl. Herb. 1: 279 (1893).

Agropyron caninum f. violacescens Ramaley, Minnesota Bot. Stud. 1: 107 (1894).

Agropyron violacescens (Ramaley) Beal, Grass. N. Amer. 2: 635 (1896).

Agropyron trachycaulum var. unilaterale (Vasey) Malte, Rep. (Annual) Natl. Mus. Canada 68: 46 (1930 publ. 1932).

* Basionym/Replaced Synonym

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