This name is a synonym of Adenostyles alpina subsp. nebrodensis (Wagenitz & I.Müll.) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A408A9B7-0FFC-41FD-BE4C-5FD478384CD8) with original publication details: 149 1983.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:921715-1.
This name was in version 1 of The Plant List, record gcc-51678, and has not been changed.