This name is a synonym of Centaurea subjacea (Beck) Hayek.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record FF8B48E2-7716-4D43-95FC-423CB1701FB6) with original publication details: 1859.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190035-1.
This name was in version 1 of The Plant List, record gcc-35719, and has not been changed.