This name is a synonym of Centaurea saxicola Lag..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A632D49B-BD64-4405-A737-0F286C8DD0DC) with original publication details: 195 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:876918-1.
This name was in version 1 of The Plant List, record gcc-8147.