This name is a synonym of Carex umbrosa Host.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 225086) with original publication details: Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 411 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:298917-1.
This name was in version 1 of The Plant List, record kew-225086.