This name is a synonym of Carex boottiana Hook. & Arn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 225033) with original publication details: Bot. Mag. (Tokyo) 32: 55 1918.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:298876-1.
This name was in version 1 of The Plant List, record kew-225033, and has not been changed.