This name is a synonym of Carex × connectens Holmb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 225694) with original publication details: Klíc Kvet. Ceskoslov. 961 1928.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:299267-1.
This name was in version 1 of The Plant List, record kew-225694, and has not been changed.