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World Checklist of Selected Plant Families (WCSP)

Agrostis arachnoides Poir. in Lamarck, Encycl., Suppl. 1: 249 (1810).

This name is a synonym.

Accepted Name: Muhlenbergia expansa (Poir.) Trin., Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 6(2): 299 (1845).
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:

Vilfa arachnoides (Poir.) P.Beauv., Ess. Agrostogr.: 147 (1812).

Cinna arachnoides (Poir.) Kunth, Révis. Gramin. 1: 67 (1829).

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