| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Onagraceae | Oenothera fruticosa var. 1 [brevistipata] | Glandular Sundrops | Calcareous barrens and glades, post oak savannas and flatwoods, other dry to dry-mesic, rocky or sandy woodlands. | S. South Carolina west to Mississippi and north to Illinois and Ohio. |  (c) Ward, Scott G |
| Onagraceae | Oenothera fruticosa var. fruticosa | Narrowleaf Sundrops | Piedmont hardpan woodlands, mafic and ultramafic barrens and glades, dry oak-hickory woodlands, longleaf pine sandhills, dry roadsides. | South Carolina north to Pennsylvania, mostly in the Piedmont. |  (c) Sorrie, Bruce A. - CC-BY |
| Onagraceae | Oenothera fruticosa var. goodmanii | Ozark Sundrops | Dry forests and woodlands, glades, rock outcrops. | Ozark Plateau and Ouachita Mountains, and adjacent areas, of Arkansas, Oklahoma, Missouri, and Louisiana. |  (c) Hill, Sonnia |
| Onagraceae | Oenothera fruticosa var. microcarpa | Small-fruited Sundrops | Boggy depressions. | E. Maryland south to e. South Carolina. | |
| Onagraceae | Oenothera fruticosa var. subglobosa | Flatrock Sundrops | Granite flatrocks and domes. | Georgia to e. Alabama. |  (c) Cressler, Alan M. |