⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-226234, with some changes.
This name is a synonym of Carex nigra subsp. nigra .
The record derives from WCSP which reports it as a synonym (record 226234) with original publication details: J. Bot. 77: 114 1939.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:299570-1.