This name is a synonym of Carex atrata L..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 224956) with original publication details: Florist. Issl. Razn. Raionakh SSSR 153 1985.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:987697-1.
This name was in version 1 of The Plant List, record kew-224956.