This name is a synonym of Centaurea athoa subsp. parnonia (Halácsy) E.Gamal-Eldin & Wagenitz.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 5C724000-0B8E-465C-8D1E-905996E307FC) with original publication details: 648 1898.
This name was in version 1 of The Plant List, record gcc-95879, and has not been changed.