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World Checklist of Selected Plant Families (WCSP)

Achnatherum lettermanii (Vasey) Barkworth, Phytologia 74: 9 (1993).

This name is a synonym.

Accepted Name: Eriocoma lettermanii (Vasey) Romasch., PhytoKeys 126: 99 (2019).
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 lettermanii Vasey, Bull. Torrey Bot. Club 13: 53 (1886).

Stipa viridula var. lettermanii (Vasey) Vasey, Contr. U.S. Natl. Herb. 1: 267 (1893).

Eriocoma lettermanii (Vasey) Romasch., PhytoKeys 126: 99 (2019).

* Basionym/Replaced Synonym

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