| Rhynchosia melanosticta Griseb., 1874 |
| Rhynchosia menispermoidea DC., 1825 |
| Rhynchosia mexicana Hook. & Arn., 1838 |
| Rhynchosia microphylla Wall., 1831 |
| Rhynchosia minima (L.) DC., 1825 |
| Rhynchosia minima var. diminifolia Walraven, 1970 |
| Rhynchosia minima var. lutea Eggers, 1879 |
| Rhynchosia minima var. pauciflora Kuntze, 1891 |
| Rhynchosia monticola Grear, 1978 |
| Rhynchosia nelsonii (Rose) Grear, 1978 |
| Rhynchosia nigropunctata S. Watson, 1887 |
| Rhynchosia nuda DC., 1825 |
| Rhynchosia phaseoloides (Sw.) DC., 1825 |
| Rhynchosia phaseoloides var. precatoria (DC.) Griseb., 1866 |
| Rhynchosia pinetorum Standl., 1938 |
| Rhynchosia potosina Brandegee, 1911 |
| Rhynchosia precatoria (Humb. & Bonpl. ex Willd.) DC., 1825 |
| Rhynchosia pringlei Rose, 1895 |
| Rhynchosia prostrata Brandegee, 1908 |
| Rhynchosia punctata DC., 1825 |