This name is a synonym of Helictotrichon decorum (Janka) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397458) with original publication details: Term. Füz. 8: 28 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391414-1.
This name was in version 1 of The Plant List, record kew-397458, and has not been changed.