This name is a synonym of Juncus anceps Laharpe.
The record derives from IOPI
(data supplied on 2012-03-23)
which reports it as a synonym (record 339982) with original publication details: Fl. Neerl. 1(6): 193 1964.
This name was in version 1 of The Plant List, record kew-339982, and has not been changed.