This name is a synonym of Dactylorhiza × kelleriana P.F.Hunt.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55583) with original publication details: Preslia 71: 236 1999.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1011044-1.
This name was in version 1 of The Plant List, record kew-55583, and has not been changed.