This name is a synonym of Dactylorhiza traunsteineri (Saut. ex Rchb.) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 256055) with original publication details: Rev. Orch. cordigera, Orchis angustifolia 67 1893.
This name was in version 1 of The Plant List, record kew-256055.