This name is a synonym of Centaurea scabiosa subsp. badensis (Tratt.) Gugler.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7F919DDE-7AFC-4F59-A548-417C53569BCB) with original publication details: 104 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:189851-1.
This name was in version 1 of The Plant List, record gcc-35323, and has not been changed.