This name is a synonym of Centaurea affinis subsp. candida (Velen.) Dostál.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F39F30A4-A1C5-4634-BACD-6FA265EAA71D) with original publication details: 315 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190127-1.
This name was in version 1 of The Plant List, record gcc-81363.