This name is a synonym of Alternanthera peruviana (Moq.) Suess..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Repert. Spec. Nov. Regni Veg. 35: 302 1934.
This name was in version 1 of The Plant List, record kew-2631320, and has not been changed.