This name is a synonym of Dactylorhiza sudetica (Poech ex Rchb.f.) Aver..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55305) with original publication details: Orchideeën 37: 78 1975.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:887389-1.
This name was in version 1 of The Plant List, record kew-55305.