This name is a synonym of Carthamus leucocaulos Sm..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2ABB837B-4A8A-4379-B3CC-2AD8C400A985) with original publication details: 708 1875.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:189519-1.
This name was in version 1 of The Plant List, record gcc-23148, and has not been changed.