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World Checklist of Selected Plant Families (WCSP)

Achnatherum effusum (Maxim.) D.M.Chang in T.N.Liou (ed.), Clavis Pl. Chinae Bor.-Or.: 486 (1959).

This name is a synonym.

Accepted Name: Achnatherum pekinense (Hance) Ohwi, Bull. Natl. Sci. Mus. Tokyo 33: 66 (1953).
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:

* Stipa sibirica var. effusa Maxim., Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 9: 326 (1859).

Stipa effusa (Maxim.) Nakai ex Honda, Bot. Mag. (Tokyo) 40: 319 (1926), nom. illeg.

Stipa extremiorientalis H.Hara, J. Jap. Bot. 15: 459 (1939).

Achnatherum extremiorientale (H.Hara) Keng f. ex P.C.Kuo, Fl. Tsinling. 1(1): 153 (1976).

Achnatherum pekinense subsp. effusum (Maxim.) T.Koyama, Grass. Japan: 483 (1987).

* Basionym/Replaced Synonym

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