This name is a synonym of Deschampsia cespitosa (L.) P.Beauv..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 407522) with original publication details: Fl. Ross. 4: 421 1852.
This name was in version 1 of The Plant List, record kew-407522.