This name is a synonym of Centaurea verbascifolia Vahl.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record DA01AEE2-BFEE-41C5-A779-326911686C29) with original publication details: 152 1775.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190982-1.
This name was in version 1 of The Plant List, record gcc-27257, and has not been changed.