This name is a synonym of Cirsium cymosum var. cymosum .
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7585E77E-0121-4859-8AA2-A819FE2293B8) with original publication details: Amer. Midl. Naturalist 30 37 1943.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:58993-2.
This name was in version 1 of The Plant List, record gcc-106569.