| Option ID | Family Name | Notes | Metadata ID |
| 281 | Passifloraceae | Angiosperms (Flowering plants) | 1,591 |
| 282 | Paulowniaceae | Angiosperms (Flowering plants) | 1,591 |
| 283 | Pedaliaceae | Angiosperms (Flowering plants) | 1,591 |
| 284 | Penaeaceae | Angiosperms (Flowering plants) | 1,591 |
| 285 | Pennantiaceae | Angiosperms (Flowering plants) | 1,591 |
| 286 | Pentadiplandraceae | Angiosperms (Flowering plants) | 1,591 |
| 287 | Pentaphragmataceae | Angiosperms (Flowering plants) | 1,591 |
| 288 | Pentaphylacaceae | Angiosperms (Flowering plants) | 1,591 |
| 289 | Penthoraceae | Angiosperms (Flowering plants) | 1,591 |
| 290 | Peraceae | Angiosperms (Flowering plants) | 1,591 |
| 291 | Peridiscaceae | Angiosperms (Flowering plants) | 1,591 |
| 292 | Petenaeaceae | Angiosperms (Flowering plants) | 1,591 |
| 293 | Petermanniaceae | Angiosperms (Flowering plants) | 1,591 |
| 294 | Petrosaviaceae | Angiosperms (Flowering plants) | 1,591 |
| 295 | Phellinaceae | Angiosperms (Flowering plants) | 1,591 |
| 296 | Philesiaceae | Angiosperms (Flowering plants) | 1,591 |
| 297 | Philydraceae | Angiosperms (Flowering plants) | 1,591 |
| 298 | Phrymaceae | Angiosperms (Flowering plants) | 1,591 |
| 299 | Phyllanthaceae | Angiosperms (Flowering plants) | 1,591 |
| 300 | Phyllonomaceae | Angiosperms (Flowering plants) | 1,591 |