⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-330741, with some changes.
This name is a synonym of Carex bigelowii subsp. rigida (Raf.) W.Schultze-Motel.
The record derives from WCSP which reports it as a synonym (record 330741) with original publication details: Rhodora 44: 298 1942.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:45855-2.