This name is a synonym of Juncus compressus Jacq..
The record derives from IOPI
(data supplied on 2012-03-23)
which reports it as a synonym (record 315460) with original publication details: Jahresber. Pollichia 13: 34 1855.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:443208-1.
This name was in version 1 of The Plant List, record kew-315460.