This name is a synonym of Centaurea jacea subsp. gaudinii (Boiss. & Reut.) Gremli.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D209541E-40EE-41E4-BA57-38D1B675E4A7) with original publication details: 421 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190586-1.
This name was in version 1 of The Plant List, record gcc-30684.