This name is a synonym of Rhaponticum cossonianum (Ball) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 559C9A93-B5EC-4A4A-A0FC-031D4FB53055) with original publication details: J. Bot. 11 369 1873.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190269-1.
This name was in version 1 of The Plant List, record gcc-1727, and has not been changed.