| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Convolvulaceae | Cuscuta gronovii var. calyptrata | Bottomlands and wet areas. | AR south to LA and TX; Europe. | ||
| Convolvulaceae | Cuscuta gronovii var. curta | Wetlands. | ON west to AB, south to se. KS, NM, and AZ. | ||
| Convolvulaceae | Cuscuta gronovii var. gronovii | Swamp Dodder, Common Dodder | Stream banks, bottomland forests, bogs, marshes, swamps, wet fields, wet disturbed areas, on a very wide variety of herbaceous and woody plants. | QC west to BC, south to s. FL and AZ. |