This name is a synonym of Arundinella nepalensis Trin..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 396500) with original publication details: Bot. Mag. (Tokyo) 56: 4 1942.
This name was in version 1 of The Plant List, record kew-396500, and has not been changed.