⚠ Version 1 of The Plant List has been superseded.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 deltoides in version 1.1 of The Plant List.
This name is a synonym of Oenothera deltoides subsp. piperi .
The record derives from Tropicos which reports it as a synonym (record 23201156
) with original publication details: Amer. J. Bot. 18(5): 314 314 1931.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:172936-2
.