This name is a synonym of Carex diandra Schrank.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 226279) with original publication details: Ill. Carex 4: 145 1867.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:299590-1.
This name was in version 1 of The Plant List, record kew-226279, and has not been changed.