This name is a synonym of Helictotrichon alpinum (Roem. & Schult.) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 397307) with original publication details: Trans. Linn. Soc. London 10: 335 1811.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391297-1.
This name was in version 1 of The Plant List, record kew-397307.