This name is a synonym of Centaurea cineraria L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2AF44FCB-2105-40C4-A793-9F924584FF79).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Centaurea cineraria in version 1 of The Plant List.