This name is a synonym of Carex tenax Chapm. ex Dewey.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 225867) with original publication details: Pflanzenr. IV, 20(38): 437 1909.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:46049-2.
This name was in version 1 of The Plant List, record kew-225867, and has not been changed.