This name is a synonym of Oenothera parodiana Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50220844) with original publication details: Ann. Missouri Bot. Gard. 64(3): 568–570, f. 148 1977.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:173258-2.
This name was in version 1 of The Plant List, record tro-50220844.