| Desmodium neomexicanum var. bigelovii (A. Gray) S. Watson, 1878 |
| Desmodium neomexicanum var. glabellum A. Gray, 1853 |
| Desmodium nicaraguense Oerst., 1854 |
| Desmodium nitidum M. Martens & Galeotti, 1843 |
| Desmodium novogalicianum B.G. Schub. & McVaugh, 1987 |
| Desmodium occidentale (Morton) Standl., 1936 |
| Desmodium orbiculare Schltdl., 1838 |
| Desmodium orbiculare var. orbiculare Schltdl., 1838 |
| Desmodium orbiculare var. rubricaule (Rose & Painter) B.G. Schub. & McVaugh, 1987 |
| Desmodium orbiculare var. salvinii (Hemsl.) B.G. Schub. ex Standl. & Steyerm., 1946 |
| Desmodium orinocense (DC.) Cuello, 1994 |
| Desmodium orizabanum Hemsl., 1880 |
| Desmodium ospriostreblum Chiov., 1908 |
| Desmodium painteri (Rose & Standl.) Standl., 1929 |
| Desmodium pallidum (Rose & Painter) Standl., 1929 |
| Desmodium palmeri Hemsl., 1880 |
| Desmodium paniculatum (L.) DC., 1825 |
| Desmodium parkinsonii Hemsl., 1880 |
| Desmodium parryi Hemsl., 1880 |
| Desmodium parviflorum M. Martens & Galeotti, 1843 |