This name is a synonym of Calamagrostis quadriseta (Labill.) Spreng..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397842) with original publication details: Nov. Holl. Pl. 1: 25 1805.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391713-1.
This name was in version 1 of The Plant List, record kew-397842.