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World Checklist of Selected Plant Families (WCSP)

Deyeuxia hyperborea (Lange) Lunell, Amer. Midl. Naturalist 4: 218 (1915).

This name is a synonym.

Accepted Name: Calamagrostis inexpansa A.Gray, N. Amer. Gram. 1: 20 (1834).
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:

* Calamagrostis hyperborea Lange in G.C.Oeder & al. (eds.), Fl. Dan.: t. 2942 (1880).

Calamagrostis neglecta var. hyperborea (Lange) M.E.Jones, Contr. W. Bot. 14: 9 (1912).

* Basionym/Replaced Synonym

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