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 CFA719B0-0E6E-476A-B684-B875157214D0) with original publication details: 427 1879.
This name was in version 1 of The Plant List, record gcc-63647.