⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50120929, with some changes.
This name is a synonym of Oenothera biennis f. stenopetala .
The record derives from Tropicos which reports it as a synonym (record 50120929
) with original publication details: Bull. Torrey Bot. Club 41(2): 79-80 79 1914.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:173428-2
.