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 5F2BA441-F39B-450C-87C2-D29F86B11BAB) with original publication details: 228 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:196981-1.
This name was in version 1 of The Plant List, record gcc-125253, and has not been changed.