This name is a synonym of Centaurea grisebachii subsp. confusa (Halácsy) Dostál.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B88F32A7-F8D4-4ADF-B905-3E1593542589) with original publication details: 770 1931.
This name was in version 1 of The Plant List, record gcc-33474, and has not been changed.