This name is a synonym of Spiranthes cernua (L.) Rich..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 140960) with original publication details: Sp. Pl. ed. 2 946 1763.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:647832-1.
This name was in version 1 of The Plant List, record kew-140960.