This name is a synonym of Centaurea rhizantha C.A.Mey..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 67D89FCF-8A7A-4E33-AA07-C8B3A18CB395) with original publication details: 31 1854.
This name was in version 1 of The Plant List, record gcc-120952, and has not been changed.