| Rhynchospora pubera f. elatior Duss, 1896 |
| Rhynchospora pubera var. microcarpa Boeckeler, 1872 |
| Rhynchospora pungens Liebm., 1850 |
| Rhynchospora pura (Nees) Griseb., 1864 |
| Rhynchospora pusilla Chapm. ex M.A. Curtis, 1849 |
| Rhynchospora radicans (Schltdl. & Cham.) H. Pfeiff., 1935 |
| Rhynchospora radicans subsp. microcephala (Bertero ex Spreng.) W.W. Thomas, 1984 |
| Rhynchospora radicans subsp. radicans (Schltdl. & Cham.) H. Pfeiff., 1935 |
| Rhynchospora radicans var. watsonii (Britton) Kük., 1951 |
| Rhynchospora robusta (Kunth) Boeckeler, 1873 |
| Rhynchospora rosae W.W. Thomas, 1992 |
| Rhynchospora rufa (Nees) Boeckeler, 1869 |
| Rhynchospora rugosa (Vahl) Gale, 1944 |
| Rhynchospora ruiziana Boeckeler, 1873 |
| Rhynchospora schaffneri Boeckeler, 1873 |
| Rhynchospora schiedeana Kunth, 1837 |
| Rhynchospora schiedeana subsp. varica C.B. Clarke, 1908 |
| Rhynchospora scutellata Griseb., 1866 |
| Rhynchospora setacea (Bergius) Boeckeler, 1869 |
| Rhynchospora stellata (Lam.) Griseb., 1857 |