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 40789866-F973-4D3D-ABA8-C85DD35DA197) with original publication details: 196 1882.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:175059-1.
This name was in version 1 of The Plant List, record gcc-120801, and has not been changed.