This name is a synonym of Centaurea aggregata subsp. albida (K.Koch) Bornm..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 674E0847-9867-4642-82E1-9E83E70C1195) with original publication details: Fl. Orient. 3: 653 (1875) 653 1875.
This name was in version 1 of The Plant List, record gcc-60475.