This name is a synonym of Centaurea donetzica Klokov.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 829E5E4D-6CBA-4E20-B5D3-16B0556C6AD8) with original publication details: 204 1976.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:876884-1.
This name was in version 1 of The Plant List, record gcc-12173, and has not been changed.