This name is a synonym of Oenothera pubescens Willd. ex Spreng..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23202254) with original publication details: Bot. Jahrb. Syst. 21: 327 1895.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:614107-1.
This name was in version 1 of The Plant List, record tro-23202254.