| Asteraceae | |
Bidens frondosa fo. anomala
| (Porter ex Fernald) Fernald | Rhodora 40(477): 352 | 1938 |
| Asteraceae | |
Bidens frondosa var. anomala
| Porter ex Fernald | Rhodora 5(51): 91 | 1903 |
| Asteraceae | |
Bidens frondosa var. caudata
| Sherff | Brittonia 11(3): 190 | 1959 |
| Asteraceae | |
Bidens frondosa fo. frondosa
| | | |
| Asteraceae | |
Bidens frondosa var. frondosa
| | | |
| Asteraceae | |
Bidens frondosa var. major
| Hook. | Companion Bot. Mag. 1(4): 99 | 1835 |
| Asteraceae | |
Bidens frondosa var. minor
| Hook. | Companion Bot. Mag. 1(4): 99 | 1835 |
| Asteraceae | |
Bidens frondosa var. pallida
| (Wiegand) Wiegand | Rhodora 26(301): 5 | 1924 |
| Asteraceae | |
Bidens frondosa var. puberula
| Wiegand | Bull. Torrey Bot. Club 26(8): 408–409 | 1899 |
| Asteraceae | |
Bidens frondosa var. stenodonta
| Fernald & H. St. John | Rhodora 17(193): 22–23 | 1915 |