This name is a synonym of Oenothera greggii var. lampasana (Buckley) Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50109397) with original publication details: Proc. Acad. Nat. Sci. Philadelphia 1861: 454 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:613820-1.
This name was in version 1 of The Plant List, record tro-50109397.