| Bidens insolita Sherff, 1936 |
| Bidens izabalensis Roseman, 1990 |
| Bidens laevis (L.) Britton, Sterns & Poggenb., 1888 |
| Bidens lemmonii A. Gray, 1884 |
| Bidens leptocephala Sherff, 1917 |
| Bidens leptocephala var. leptocephala Sherff, 1917 |
| Bidens leucantha (L.) Willd. ex Walp., 1846 |
| Bidens linearifolia Sch. Bip., 1856 |
| Bidens longifolia DC., 1836 |
| Bidens longistyla C.R. Hart, 1978 |
| Bidens mcvaughii Sherff, 1964 |
| Bidens megapotamica Spreng., 1826 |
| Bidens melchertii B.L. Turner, 2005 |
| Bidens mexicana Sherff, 1913 |
| Bidens minensis Sherff, 1964 |
| Bidens mollifolia Sherff, 1917 |
| Bidens mollis Poepp. & Endl., 1843 |
| Bidens muelleri Sherff, 1937 |
| Bidens muelleri var. graminiformis Sherff, 1962 |
| Bidens nana M.O. Dillon, 1983 |