This name is a synonym of Eleocharis palustris (L.) Roem. & Schult..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 242750) with original publication details: J. Ecol. 37: 194 1949.
This name was in version 1 of The Plant List, record kew-242750.