| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Onagraceae | Ludwigia peploides var. glabrescens | Floating Primrose-willow | Pools, ditches, disturbed places. | Pennsylvania, Virginia and North Carolina south and west to Florida and Arizona; Mexico; Venezuela. Doubtfully native in the eastern parts of our area. |  (c) Fleming, Gary P. |
| Onagraceae | Ludwigia peploides var. montevidensis | Marshes. | Native of South America. | ||
| Onagraceae | Ludwigia peploides var. peploides | Canals, ditches, sluggish waters. | Texas, New Mexico, Arizona, and California south to Mexico, Central America, South America; West Indies. |  (c) Hill, Sonnia |