This name is a synonym of Oenothera pallida var. runcinata (Engelm.) Cronquist.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50109091) with original publication details: Amer. J. Sci. Arts, ser. 2 34(102): 334 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:172707-2.
This name was in version 1 of The Plant List, record tro-50109091.