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World Checklist of Selected Plant Families (WCSP)

Deyeuxia sylvatica var. laxiflora Rendle, J. Linn. Soc., Bot. 36: 397 (1904).

This name is a synonym.

Accepted Name: Calamagrostis effusiflora (Rendle) P.C.Kuo & S.L.Lu ex J.L.Yang, Fl. Sichuanica 5(2): 88 (1988).
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 arundinacea var. laxiflora (Rendle) P.C.Kuo & S.L.Lu, Fl. Reipubl. Popularis Sin. 9(3): 208 (1987).

Calamagrostis arundinacea var. laxiflora (Rendle) P.C.Kuo & S.L.Lu ex J.L.Yang, Fl. Sichuanica 5(2): 101 (1988).

Deyeuxia laxiflora (Rendle) L.Liu, Vasc. Pl. Hengduan Mount. 2: 2235 (1994), nom. illeg.

Deyeuxia pyramidalis var. laxiflora (Rendle) Q.X.Liu, Fl. Jiangsu 5: 231 (2015).

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