| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Pteridaceae | Ceratopteris pteridoides | Water-horn Fern | Ponds and lakes (natural and artificial). | S. GA, FL, LA (including Florida parishes); West Indies; Central and South America; se. Asia. |  |
| Pteridaceae | Ceratopteris richardii | Lakes and ponds; probably only introduced in the southeastern United States. | West Indies; Central and South America; Africa. | ||
| Pteridaceae | Ceratopteris species 1 [New World] | Watersprite | Canals, swamps, ditches. | Widespread in tropical and subtropical areas of America; regarded by some authors as introduced in the se. United States. |  |
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