This name is a synonym of Trisetum distichophyllum (Vill.) P.Beauv..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25556520) with original publication details: Prosp. Hist. Pl. Dauphine 2: 144 1787.
This name was in version 1 of The Plant List, record tro-25556520.