This name is a synonym of Oenothera micrantha var. jonesii (H. Lév.) Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50082472) with original publication details: Monogr. Onothera 213 1905.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:173068-2.
This name was in version 1 of The Plant List, record tro-50082472.