This name is a synonym of Centaurea friderici subsp. jabukensis (Ginzb. & Teyber) Dostál ex Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 52E01B47-FD45-48E3-A4C4-0884E9716D19) with original publication details: 226 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:174612-1.
This name was in version 1 of The Plant List, record gcc-4579, and has not been changed.