This name is a synonym of Rhaponticum insigne (Boiss.) Wagenitz.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 03C5DE8C-9EEE-4912-8F90-26D394351D03) with original publication details: 391 1973.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:230297-1.
This name was in version 1 of The Plant List, record gcc-21009, and has not been changed.