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World Checklist of Selected Plant Families (WCSP)

Deyeuxia americana (Vasey) Lunell, Amer. Midl. Naturalist 5: 233 (1918).

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:

* Deyeuxia neglecta var. americana Vasey in J.Macoun, Cat. Canad. Pl. 2(4): 206 (1888).

Calamagrostis americana (Vasey) Rydb. & Shear, Bull. Div. Agrostol. U.S.D.A. 5: 27 (1897).

Calamagrostis hyperborea var. americana (Vasey) Kearney, Bull. Div. Agrostol. U.S.D.A. 11: 41 (1898).

Calamagrostis wyomingensis Gand., Bull. Soc. Bot. France 66: 299 (1920).

* Basionym/Replaced Synonym

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