This name is a synonym of Trisetum glaciale Boiss..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 397583) with original publication details: Elench. Pl. Nov. 87 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391479-1.
This name was in version 1 of The Plant List, record kew-397583, and has not been changed.