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 and as an illegitimate name (record 397922) with original publication details: Exp. Sci. Morée, Bot. 7 1832.
This name was in version 1 of The Plant List, record kew-397922, and has not been changed.