| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Rosaceae | Crataegus viridis var. glabriuscula | Texas Green Hawthorn | Alluvial woodlands, streamsides, prairies, usually where soils are basic or calcareous. | E. TX n. to s. OK, e. AR. |  (c) Campos, Aidan |
| Rosaceae | Crataegus viridis var. lanceolata | Lanceleaf Green Hawthorn | Moist forests and woodlands, streamsides, calcareous uplands. | SC to FL, w. to e. TX, AR; range sympatric with much of the typical variety of the species. |  (c) Lance, Ron |
| Rosaceae | Crataegus viridis var. ovata | Roundleaf Green Hawthorn | Alluvial woodlands, moist, brushy fields, uplands in calcareous soils. | MO s. to AR, n. LA, e. TX. |  (c) Lance, Ron |
| Rosaceae | Crataegus viridis var. velutina | Velvety Green Hawthorn | Bottomland forests, field borders, moist to wet woodlands. | MS, AR, n. LA, e. TX. |  (c) Lance, Ron |
| Rosaceae | Crataegus viridis var. viridis | Green Hawthorn, Greenhaw | Swamps, bottomland forests, alluvial woodlands, streamsides, wet flatwoods, and uplands where soils are often basic to calcareous. | MD to n. FL, w. MO, c. TX; absent or rare on Appalachian Plateau. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |