This name is a synonym of Cymbopogon schoenanthus subsp. proximus (Hochst. ex A.Rich.) Maire & Weiller.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 406281) with original publication details: Alc. Gram. Essenz. 16 1909.
This name was in version 1 of The Plant List, record kew-406281.