This name is a synonym of Helictotrichon requienii (Mutel) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397847) with original publication details: Fl. Franç. 4: 62 1837.
This name was in version 1 of The Plant List, record kew-397847, and has not been changed.