This name is a synonym of Carex viridula subsp. brachyrhyncha (Celak.) B.Schmid.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 226612) with original publication details: Flora 27: 338 1844.
This name was in version 1 of The Plant List, record kew-226612.