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World Checklist of Selected Plant Families (WCSP)

Agropyron boreale var. hyperarcticum (Polunin) S.L.Welsh in J.P.Anderson, Fl. Alaska: 546 (1974).

This name is a synonym.

Accepted Name: Elymus sajanensis (Nevski) Tzvelev, Novosti Sist. Vyssh. Rast. 9: 61 (1972).
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 violaceum var. hyperarcticum Polunin, Bull. Natl. Mus. Canada 92: 95 (1940).

Roegneria borealis var. hyperarctica (Polunin) Melderis, Svensk Bot. Tidskr. 44: 161 (1950).

Roegneria borealis subsp. hyperarctica (Polunin) Á.Löve & D.Löve, Acta Horti Gothob. 20: 188 (1956).

Roegneria hyperarctica (Polunin) Tzvelev, Fl. Arct. URSS 2: 244 (1964).

Agropyron boreale subsp. hyperarcticum (Polunin) Melderis, Ark. Bot., a.s., 7(1): 19 (1967 publ. 1968).

Elymus hyperarcticus (Polunin) Tzvelev, Novosti Sist. Vyssh. Rast. 9: 61 (1972).

Elymus sajanensis subsp. hyperarcticus (Polunin) Tzvelev, Novosti Sist. Vyssh. Rast. 10: 24 (1973).

Elymus alaskanus subsp. hyperarcticus (Polunin) Á.Löve & D.Löve, Bot. Not. 128: 502 (1975 publ. 1976).

* Basionym/Replaced Synonym

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