This name is a synonym of Carex pseudocyperus var. fascicularis (Sol. ex Hook.f.) Boott.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 226716) with original publication details: Handb. N. Zeal. Fl. 1: 315 1867.
This name was in version 1 of The Plant List, record kew-226716, and has not been changed.