| Rhynchospora stellata f. floridensis (Britton ex Small) Kük., 1951 |
| Rhynchospora stellata f. intercedens Kük., 1951 |
| Rhynchospora tenerrima Nees ex Spreng., 1827 |
| Rhynchospora tenerrima subsp. tenerrima Nees ex Spreng., 1827 |
| Rhynchospora tenuis Link, 1820 |
| Rhynchospora tenuiseta C. Wright, 1871 |
| Rhynchospora tracyi Britton, 1892 |
| Rhynchospora triflora Vahl, 1805 |
| Rhynchospora trispicata (Nees) Schrad. ex Steud., 1855 |
| Rhynchospora tuerckheimii C.B. Clarke ex Kük., 1949 |
| Rhynchospora vahliana Griseb., 1864 |
| Rhynchospora velutina (Kunth) Boeckeler, 1869 |
| Rhynchospora venezolana Kük., 1944 |
| Rhynchospora vulcani Boeckeler, 1873 |
| Rhynchospora watsonii (Britton) Davidse, 1974 |
| Rhynchospora weberbaueri C.B. Clarke, 1906 |
| Rhynchospora zacualtipanensis M.T. Strong, 2000 |
| Rhynchosporeae Wight & Arn., 1834 |
| Schiedeanae Kükenthal, 1909 |
| Schizolepis Schrad.ex Nees, 1842 |