This name is a synonym of Stomatanthes africanus (Oliv. & Hiern) R.M.King & H.Rob..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 609377A5-DFC4-4920-B647-B31E7C7F5822) with original publication details: Fl. Trop. Afr. 3: 301. 1877. 301 1877.
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Eupatorium africanum in version 1 of The Plant List.