This name is a synonym of Brachypodium sylvaticum (Huds.) P.Beauv..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 400136) with original publication details: Nat. Arr. Brit. Pl. 2: 113 1821.
This name was in version 1 of The Plant List, record kew-400136.