This name is a synonym of Eragrostis japonica (Thunb.) Trin..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 412479) with original publication details: Fl. Ind. 1: 337 1820.
This name was in version 1 of The Plant List, record kew-412479.