This name is a synonym of Dactylorhiza sambucina (L.) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55565) with original publication details: Estud. Mus. Cienc. Nat. Alava 15: 190 2000.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:20001981-1.
This name was in version 1 of The Plant List, record kew-55565.