This name is a synonym of Deschampsia setacea (Huds.) Hack..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 391079) with original publication details: Fl. Angl. 30 1762.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:386853-1.
This name was in version 1 of The Plant List, record kew-391079.