| Option ID | Family Name | Notes | Metadata ID |
| 341 | Salvadoraceae | Angiosperms (Flowering plants) | 1,591 |
| 342 | Santalaceae | Angiosperms (Flowering plants) | 1,591 |
| 343 | Sapindaceae | Angiosperms (Flowering plants) | 1,591 |
| 344 | Sapotaceae | Angiosperms (Flowering plants) | 1,591 |
| 345 | Sarcobataceae | Angiosperms (Flowering plants) | 1,591 |
| 346 | Sarcolaenaceae | Angiosperms (Flowering plants) | 1,591 |
| 347 | Sarraceniaceae | Angiosperms (Flowering plants) | 1,591 |
| 348 | Saururaceae | Angiosperms (Flowering plants) | 1,591 |
| 349 | Saxifragaceae | Angiosperms (Flowering plants) | 1,591 |
| 350 | Scheuchzeriaceae | Angiosperms (Flowering plants) | 1,591 |
| 351 | Schisandraceae | Angiosperms (Flowering plants) | 1,591 |
| 352 | Schlegeliaceae | Angiosperms (Flowering plants) | 1,591 |
| 353 | Schoepfiaceae | Angiosperms (Flowering plants) | 1,591 |
| 354 | Scrophulariaceae | Angiosperms (Flowering plants) | 1,591 |
| 355 | Setchellanthaceae | Angiosperms (Flowering plants) | 1,591 |
| 356 | Simaroubaceae | Angiosperms (Flowering plants) | 1,591 |
| 357 | Simmondsiaceae | Angiosperms (Flowering plants) | 1,591 |
| 358 | Siparunaceae | Angiosperms (Flowering plants) | 1,591 |
| 359 | Sladeniaceae | Angiosperms (Flowering plants) | 1,591 |
| 360 | Smilacaceae | Angiosperms (Flowering plants) | 1,591 |