This name is a synonym of Centaurea affinis subsp. pallidior (Halácsy) Hayek.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1284DEC3-E1E9-402C-A10C-141CAA4B4C6F) with original publication details: 198 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:876855-1.
This name was in version 1 of The Plant List, record gcc-10749.