This name is a synonym of Centaurea phrygia subsp. salicifolia (M.Bieb. ex Willd.) Mikheev.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record AB18D724-8704-449D-932F-3CAF970741EC) with original publication details: 422 1879.
This name was in version 1 of The Plant List, record gcc-32731.