This name is a synonym of Carex bigelowii subsp. arctisibirica (Jurtzev) Á.Löve & D.Löve.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 224602) with original publication details: Sosud. Rast. SSSR 194 1981.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:984718-1.
This name was in version 1 of The Plant List, record kew-224602, and has not been changed.