This name is a synonym of Centaurea corymbosa Pourr..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F06DBEB9-A5A4-4D42-ACB8-684B09DDB277) with original publication details: 226 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:174595-1.
This name was in version 1 of The Plant List, record gcc-78076, and has not been changed.