Oenothera parviflora var. angustissima (R.R. Gates) Wiegand

Oenothera parviflora var. angustissima (R.R. Gates) Wiegand is a synonym sensu FNA Ed. Comm., 2021 of:

Oenothera parviflora Linnaeus, an accepted species name sensu FNA Ed. Comm., 2021.