This name is a synonym of Senecio arnicoides Hook. & Arn..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record CFBB24BE-3C49-483D-8344-8329E5E16FF9) with original publication details: 418 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:182015-1.
This name was in version 1 of The Plant List, record gcc-90083, and has not been changed.