This name is a synonym of Luzula multiflora subsp. sibirica V.I.Krecz..
The record derives from IOPI
(data supplied on 2012-03-23)
which reports it as a synonym (record 316504) with original publication details: Canad. J. Bot. 56(2): 191 1978.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:883736-1.
This name was in version 1 of The Plant List, record kew-316504.