This name is a synonym of Ethulia conyzoides L.f..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 73300E02-BCFF-45D2-8724-1AC66FEFB4ED) with original publication details: 128 1857.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:205253-1.
This name was in version 1 of The Plant List, record gcc-14429.