This name is a synonym of Crepidiastrum sonchifolium (Maxim.) Pak & Kawano.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 3EA8A33B-3865-4BD6-9FAD-896FF2E011D1) with original publication details: Prim. Fl. Amur. 180 1859.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1122758-2.
This name was in version 1 of The Plant List, record gcc-92819.