This name is a synonym of Brachypodium flexum Nees.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 400135) with original publication details: Annuario Reale Ist. Bot. Roma 8: 379 1908.
This name was in version 1 of The Plant List, record kew-400135, and has not been changed.