⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-314497, with some changes.
This name is a synonym of Juncus balticus subsp. ater (Rydb.) Snogerup.
The record derives from IOPI which reports it as a synonym (record 314497) with original publication details: Man. Fl. Pl. Calif. 198 1923.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:132012-2.