This name is a synonym of Bromus madritensis L..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 400916) with original publication details: Fl. Londin. 6: t. 5 1798.
This name was in version 1 of The Plant List, record kew-400916.