This name is a synonym of Ocimum obovatum var. galpinii (Gürke) A.J.Paton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 136963) with original publication details: Contr. Fl. Katanga 181 1921.
This name was in version 1 of The Plant List, record kew-136963.