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 DC9109DC-025B-4199-A5FD-E1DF203AE947) with original publication details: 766 1931.
This name was in version 1 of The Plant List, record gcc-68839.