This name is a synonym of Carduus pycnocephalus L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 635E5292-68C7-4DB3-8C1D-E4763F888694) with original publication details: Prodr. 6: 626 (1838) 626 1838.
This name was in version 1 of The Plant List, record gcc-69174.