This name is a synonym of Carex duriuscula C.A.Mey..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 226302) with original publication details: Mem. Torrey Bot. Club 1: 6 1889.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:46138-2.
This name was in version 1 of The Plant List, record kew-226302.