⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Oenothera biennis in version 1.1 of The Plant List.
This name is a synonym of Oenothera oakesiana .
The record derives from Tropicos which reports it as a synonym (record 50126026
) with original publication details: Manual (ed. 5) 178, 190 178 1867.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:312955-2
.