This name is a synonym of Platanthera peramoena A.Gray.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 141101) with original publication details: Fl. Carol. 221 1788.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:647893-1.
This name was in version 1 of The Plant List, record kew-141101.