This name is a synonym of Corynephorus canescens (L.) P.Beauv..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397417) with original publication details: Prim. Fl. Holsat. 9 1780.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391372-1.
This name was in version 1 of The Plant List, record kew-397417.