⚠ Version 1 of The Plant List has been superseded.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 cespitosa in version 1.1 of The Plant List.
This name is a synonym of Oenothera cespitosa var. navajoensis .
The record derives from Tropicos which reports it as a synonym (record 23201411
) with original publication details: Syst. Bot. Monogr. 12: 66-70 66 1985.