This name is a synonym of Carex phragmitoides Kük..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 225585) with original publication details: Nordic J. Bot. 3: 244 1983.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:921893-1.
This name was in version 1 of The Plant List, record kew-225585.