This name is a synonym of Dactylorhiza aristata (Fisch. ex Lindl.) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 55166) with original publication details: N. Amer. Native Orchid J. 1: 199 1995.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:985009-1.
This name was in version 1 of The Plant List, record kew-55166.