This name is a synonym of Helictotrichon convolutum (J.Presl) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397593) with original publication details: Fl. Palerm. 1: 111 1845.
This name was in version 1 of The Plant List, record kew-397593, and has not been changed.