This name is a synonym of Carex opaca (F.J.Herm.) P.Rothr. & Reznicek.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 224930) with original publication details: Sida 5: 49 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:45853-2.
This name was in version 1 of The Plant List, record kew-224930, and has not been changed.