This name is a synonym of Agrostis agrostiflora (Beck) Janch. & H.Neumayer.
The record derives from WCSP which reports it as a synonym and as an illegitimate name (record 390096) with original publication details: Agrost. Helv. 1: 75 1811.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:386147-1.