This name is a synonym of Wedelia mexicana (Sch.Bip.) McVaugh.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record FE85ADA8-2AF0-4961-B710-25161A2B054B) with original publication details: 1991.
This name was in version 1 of The Plant List, record gcc-20059, and has not been changed.