This name is a synonym of Carex doenitzii var. okuboi (Franch.) Kük..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 229244) with original publication details: Bull. Soc. Philom. Paris VIII, 7: 43 1895.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:301305-1.
This name was in version 1 of The Plant List, record kew-229244, and has not been changed.