This name is a synonym of Centaurea stoebe subsp. australis (Pančić ex A.Kern.) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 8BB4267E-FFF7-4BB3-B46A-E35FCE9CAA66) with original publication details: 146 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190946-1.
This name was in version 1 of The Plant List, record gcc-132488.