This name is a synonym of Centaurea monacantha E.D.Clarke.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 60ACE9B9-A8C3-4741-847D-75AB59897847) with original publication details: 681 1875.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190522-1.
This name was in version 1 of The Plant List, record gcc-84066, and has not been changed.