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 400126) with original publication details: Bot. Mag. (Tokyo) 52: 227 1938.
This name was in version 1 of The Plant List, record kew-400126.