.
| 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. SC west to MS and north to IL and OH. | 
|
| 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. | SC north to PA, mostly in the Piedmont. | 
|
| Onagraceae | Oenothera fruticosa var. goodmanii | Ozark Sundrops | Dry forests and woodlands, glades, rock outcrops. | Ozark Plateau and Ouachita Mountains, and adjacent areas, of AR, OK, MO, and LA. | 
|
| Onagraceae | Oenothera fruticosa var. microcarpa | Small-fruited Sundrops | Boggy depressions. | E. MD south to e. SC. | |
| Onagraceae | Oenothera fruticosa var. subglobosa | Flatrock Sundrops | Granite flatrocks and domes. | GA to e. AL. | 
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