This name is a synonym of Dactylorhiza × insignis (T.Stephenson & T.A.Stephenson) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55563) with original publication details: Jahresber. Naturwiss. Vereins Wuppertal 21-22: 18 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:626670-1.
This name was in version 1 of The Plant List, record kew-55563, and has not been changed.