This name is a synonym of Centaurea stoebe subsp. serbica (Prodan) Ochsmann.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D2E7CFBE-4771-417E-A4EA-28FA93B4B1D6) with original publication details: 38 1980.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:919432-1.
This name was in version 1 of The Plant List, record gcc-22152.