| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Hydroleaceae | Hydrolea capsularis | Wet pond margins, floodplain openings, disturbed wet areas, roadsides. | S. TX south through Mexico and Central America to South America; West Indies. | ||
| Hydroleaceae | Hydrolea corymbosa | Skyflower | Pond cypress savannas, depression meadows. | Ne. SC south to sw. GA and s. FL. |  (c) Bradley, Keith |
| Hydroleaceae | Hydrolea ovata | Ovate Fiddleleaf | Swamps, ponds, ditches. | C. GA and Panhandle FL west to TX, north in the interior to sc. TN and MO. |  (c) Hill, Sonnia |
| Hydroleaceae | Hydrolea quadrivalvis | Waterpod | Swamp forests, backwater sloughs, especially in cypress-gum forests, marshes, ditches. | Se. VA south to c. peninsular FL, west to LA. |  (c) Pippen, Jeffrey S. |
| Hydroleaceae | Hydrolea uniflora | Swamp forests, sloughs, marshes. | Mainly in the Mississippi River Alluvial Plain, west to e. TX and east to AL, TN, and KY. |  (c) Wilson, Jeff - CC-BY |