This name is a synonym of Dactylorhiza maculata subsp. elodes (Griseb.) Soó.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23500170) with original publication details: Abh. Zool.-Bot. Ges. Österreich 22: 107 1984.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:942098-1.
This name was in version 1 of The Plant List, record tro-23500170.