This name is a synonym of Baccharis vulneraria Baker.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record FA9E5DA4-DDA3-446A-B003-52D3D69AFC73) with original publication details: "Notas Mus. La Plata, Bot. 2" 177 1937.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:27787-2.
This name was in version 1 of The Plant List, record gcc-44712, and has not been changed.