This name is a synonym of Oenothera biennis L..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Wiss. Z. Pädagog. Hochschule Potsdam, Math.-Naturwiss. Reihe 2: 206 1956.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317817-2.
This name was in version 1 of The Plant List, record kew-2399537.