This name is a synonym of Agrostis perennans (Walter) Tuck..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 389187) with original publication details: Sp. Pl. 1: 370 1797.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:385417-1.
This name was in version 1 of The Plant List, record kew-389187.