As classified in WFO snapshot
December 2023
Warning: older classification
subspecies
Oenothera cespitosa subsp. montana
(Nutt. ex Torr. & A.Gray) Munz
This subspecies name was first published in N. Amer. Fl. , ser. 2, 5: 101 (1965)
This subspecies name has been reclassified since this snapshot. Its current preferred usage is a synonym .