This name is a synonym of Centaurea ceratophylla Ten..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 611AA68B-2AC7-4BEB-868D-074F3A290570) with original publication details: 194 1907.
This name was in version 1 of The Plant List, record gcc-3937, and has not been changed.