This name is a synonym of Carex krausei subsp. porsildiana (Polunin) Á.Löve, D.Löve & Raymond.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 330759) with original publication details: Naturaliste Canad. 77: 59 1950.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:293869-2.
This name was in version 1 of The Plant List, record kew-330759, and has not been changed.