This name is a synonym of Carex × halophila F.Nyl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 371178) with original publication details: Ann. Bot. Fenn. 44: 472 2007.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77087837-1.
This name was in version 1 of The Plant List, record kew-371178.