This name is a synonym of Digitaria argyrotricha (Andersson) Chiov..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 427301) with original publication details: Naturw. Reise Mossambique 2: 548 1864.
This name was in version 1 of The Plant List, record kew-427301, and has not been changed.