This name is a synonym of Oenothera magallanica Phil..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50202534) with original publication details: Syn. Pl. 2: 1289 1840.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:613775-1.
This name was in version 1 of The Plant List, record tro-50202534, and has not been changed.