This name is a synonym of Deschampsia setacea (Huds.) Hack..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25503769) with original publication details: Nov. Fl. Suec. (ed. 2) 11: 1828 1828.
This name was in version 1 of The Plant List, record tro-25503769.