| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Alismataceae | Sagittaria lancifolia var. lancifolia | Bulltongue Arrowhead, Langue du boeuf (frc) | Marshes, swamps. | E. South Carolina south to s. Florida, west to Florida Panhandle; West Indies; n. South America. Reports further west in the Gulf Coastal Plain (Mississippi and Louisiana) are unverified. |  (c) Ward, Scott G |
| Alismataceae | Sagittaria lancifolia var. media | Scimitar Arrowhead | Freshwater to brackish (mesohaline) tidal marshes. | S. Delaware south to ne. Florida, Florida Panhandle, west to Texas; scattered in Central America and n. South America. |  (c) Sorrie, Bruce A. - CC-BY |