This name is a synonym of Rhynchospora tenerrima Nees ex Spreng..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 265702) with original publication details: Encycl. 7: 4 1806.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:315038-1.
This name was in version 1 of The Plant List, record kew-265702.