This name is a synonym of Carex diluta M.Bieb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 226089) with original publication details: in Fl. Evropeiskoi Chasti SSSR 2: 177 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:879507-1.
This name was in version 1 of The Plant List, record kew-226089.