This name is a synonym of Centaurea castellana Boiss..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7588F71C-A4C3-460C-AF98-8B4C00135E67) with original publication details: 426 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190469-1.
This name was in version 1 of The Plant List, record gcc-93721.