| Stizolobium P. Browne, 1756 |
| Stizolobium altissimum (Jacq.) Pers., 1807 |
| Stizolobium deeringianum Bort, 1909 |
| Stizolobium holtonii Kuntze, 1891 |
| Stizolobium pruriens (L.) Medik., 1787 |
| Stizolobium pruriens var. pruriens (L.) Medik., 1787 |
| Stizolobium pruritum Piper, 1917 |
| Stizolobium urens (L.) Pers., 1807 |
| Strombocarpa (Benth.) Engelm. & A. Gray, 1845 |
| Strombocarpa brevifolia Nutt. ex A. Gray, 1852 |
| Strombocarpa cinerascens A. Gray, 1852 |
| Strombocarpa odorata (Torr. & Frém.) A. Gray, 1854 |
| Strombocarpa palmeri (S. Watson) C.E. Hughes & G.P. Lewis, 2022 |
| Strombocarpa pubescens (Benth.) A. Gray, 1852 |
| Strombocarpa reptans (Benth.) A. Gray, 1854 |
| Strongylodon Vogel, 1836 |
| Strongylodon macrobotrys A. Gray, 1854 |
| Strophostyles Elliott, 1823 |
| Strophostyles helvola (L.) Elliott, 1823 |
| Strophostyles leiosperma (Torr. & A. Gray) Piper, 1926 |