This name is a synonym of Carex aperta Boott.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 330718) with original publication details: Amer. J. Sci. V, 2: 290 1921.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:45743-2.
This name was in version 1 of The Plant List, record kew-330718, and has not been changed.