This name is a synonym of Dactylorhiza viridis (L.) R.M.Bateman, Pridgeon & M.W.Chase.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 67466) with original publication details: Nat. Arr. Brit. Pl. 2: 206 1821.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:631115-1.
This name was in version 1 of The Plant List, record kew-67466.