| Genus | # of species |
|---|---|
| Rollinia | 1 |
| Roystonea | 1 |
| Sabal | 10 |
| Salacca | 1 |
| Salvia | 1 |
| Sanchezia | 1 |
| Saraca | 1 |
| Satakentia | 1 |
| Schizostachyum | 1 |
| Selenicereus | 1 |
| Sequoia | 1 |
| Sequoiadendron | 1 |
| Sinningia | 1 |
| Socratea | 4 |
| Solanum | 3 |
| Spondias | 1 |
| Stromanthe | 1 |
| Strongylodon | 1 |
| Syagrus | 10 |
| Synechanthus | 1 |