This name is a synonym of Cosmos parviflorus (Jacq.) Pers..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record BE42F85C-4FAC-4B01-867A-E2604CEC5286) with original publication details: 1798.
This name was in version 1 of The Plant List, record gcc-132057, and has not been changed.