This name is a synonym of Agropyron cristatum (L.) Gaertn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 399852) with original publication details: Vilm. Blumengärtn. ed. 3 1: 1218 1895.
This name was in version 1 of The Plant List, record kew-399852.