This name is a synonym of Centaurea ptarmicoides Halácsy.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 3CA4D63E-A8F2-4588-AA15-33B16F2511C6) with original publication details: 205 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:876848-1.
This name was in version 1 of The Plant List, record gcc-27984, and has not been changed.