Oenothera parviflora subsp. ammophila (Focke) Janchen

Oenothera parviflora subsp. ammophila (Focke) Janchen is a synonym sensu FNA Ed. Comm., 2021 of:

Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson, an accepted species name sensu FNA Ed. Comm., 2021.