| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cabombaceae | Cabomba caroliniana | Fanwort | Millponds, lakes, slow-moving streams. | MA, NY, and NJ west to OH, s. MI, and MO, south to FL and TX; also native in s. South America (s. Brazil, Paraguay, Uruguay, and n. Argentina). Additionally sporadically introduced elsewhere from aquarium "throw-outs". |  |
| Cabombaceae | Cabomba furcata | Ditches, ponds; apparently spreading from aquarium throw-outs. | Native of South America, Central America, and West Indies. | ||
| Cabombaceae | Cabomba palaeformis | Fishgrass | Ponds and ditches. | Native of Mexico and Central America. |