This name is a synonym of Arrhenatherum elatius (L.) P.Beauv. ex J.Presl & C.Presl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397477) with original publication details: Fl. Agen. 47 1821.
This name was in version 1 of The Plant List, record kew-397477.