This name is a synonym of Centaurea nigrescens Willd..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7A42D400-9C63-4173-8EB3-9A7290551EA1) with original publication details: 517 1831.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190147-1.
This name was in version 1 of The Plant List, record gcc-100362.