Oenothera biennis var. hirsutissima A. Gray ex S. Watson

Oenothera biennis var. hirsutissima A. Gray ex S. Watson is a synonym sensu FNA Ed. Comm., 2021 of:

Oenothera elata subsp. hirsutissima (A. Gray ex S. Watson) W. Dietrich, an accepted subspecies name sensu FNA Ed. Comm., 2021.