This name is a synonym of Carduus nutans L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 28204BA0-6518-422D-8571-A7916D500A32) with original publication details: 60 1768.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:180317-1.
This name was in version 1 of The Plant List, record gcc-106346.