This name is a synonym of Centaurea phrygia subsp. bosniaca (Murb.) Hayek.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 794EACA6-6DE5-4772-8433-98F64270860E) with original publication details: 748 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190060-1.
This name was in version 1 of The Plant List, record gcc-99701.