| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Onagraceae | Ludwigia linearis var. linearis | Eastern Narrowleaf Seedbox | Pine savannas, swamps, marshes. | Var. linearis ranges from s. NJ south to c. peninsular FL, west to se. LA, extending inland to the Cumberland Plateau of nc. AL and c. TN. |  |
| Onagraceae | Ludwigia linearis var. puberula | Western Narrowleaf Seedbox | Pine savannas, prairies, interdunal swales, ditches. | Var. puberula ranges primarily from c. AL west to c. AR and e. MO, south to e. TX, with intergradational material extending as far north and east as n. FL and e. NC. |  |
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