This name is a synonym of Ambrosia arborescens Mill..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record C460C4C1-91B3-4C54-BD0F-F3580469651A) with original publication details: Suppl. Pl. 418 418 .
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:260839-1.
This name was in version 1 of The Plant List, record gcc-139710.