This name is a synonym of Centaurea alba subsp. ciliata (Font Quer ex O.Bolòs & Vigo) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 6699A553-8616-4866-A249-E7C41D291DFD) with original publication details: 92 1988.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:950330-1.
This name was in version 1 of The Plant List, record gcc-69618.