This name is a synonym of Cymbopogon jwarancusa subsp. olivieri (Boiss.) Soenarko.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 406275) with original publication details: in Fl. Afr. Nord 1: 287 1952.
This name was in version 1 of The Plant List, record kew-406275.