This name is a synonym of Cynodontium alpestre var. acutifolia (Limpr.) Podp..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35186783) with original publication details: Nov. Stirp. Pug. 1901.
This name was in version 1 of The Plant List, record tro-35186783, and has not been changed.