This name is a synonym of Carex nivalis Boott.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 225557) with original publication details: Proc. Linn. Soc. London 1: 257 1845.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:324525-2.
This name was in version 1 of The Plant List, record kew-225557, and has not been changed.