This name is a synonym of Oenothera runcinata var. brevifolia (Engelm.) Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50129381) with original publication details: Amer. J. Sci. Arts, ser. 2 34(102): 335 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:172695-2.
This name was in version 1 of The Plant List, record tro-50129381.