This name is a synonym of Galinsoga quadriradiata Ruiz & Pav..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1B734A6A-BE07-48BB-B2E4-40B225A3B0BF) with original publication details: Ann. Missouri Bot. Gard. 58 80 1971.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:7154-2.
This name was in version 1 of The Plant List, record gcc-34892.