⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-85012, with some changes.
This name is a synonym of Cirsium scariosum var. scariosum Nutt..
The record derives from TICA which reports it as a synonym (record 3A9DD87D-A280-4CDA-8CA8-77B8757884C3) with original publication details: Bot. Gaz. 53 228 1912.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:45553-2.