⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-314539, with some changes.
This name is a synonym of Juncus effusus subsp. effusus .
The record derives from IOPI which reports it as a synonym (record 314539) with original publication details: Amer. Midl. Naturalist 10: 206 1927.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:132031-2.