This name is a synonym of Helictotrichon filifolium (Lag.) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 418414) with original publication details: Voy. Bot. Espagne 2: 655 1844.
This name was in version 1 of The Plant List, record kew-418414, and has not been changed.