⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-80621, 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 883715FA-2432-4688-9D93-6DF8689189CE) with original publication details: 81 1925.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:195689-1.