| Option ID | Family Name | Notes | Metadata ID |
| 41 | Balanophoraceae | Angiosperms (Flowering plants) | 1,591 |
| 42 | Balsaminaceae | Angiosperms (Flowering plants) | 1,591 |
| 43 | Barbeuiaceae | Angiosperms (Flowering plants) | 1,591 |
| 44 | Barbeyaceae | Angiosperms (Flowering plants) | 1,591 |
| 45 | Basellaceae | Angiosperms (Flowering plants) | 1,591 |
| 46 | Bataceae | Angiosperms (Flowering plants) | 1,591 |
| 47 | Begoniaceae | Angiosperms (Flowering plants) | 1,591 |
| 48 | Berberidaceae | Angiosperms (Flowering plants) | 1,591 |
| 49 | Berberidopsidaceae | Angiosperms (Flowering plants) | 1,591 |
| 50 | Betulaceae | Angiosperms (Flowering plants) | 1,591 |
| 51 | Biebersteiniaceae | Angiosperms (Flowering plants) | 1,591 |
| 52 | Bignoniaceae | Angiosperms (Flowering plants) | 1,591 |
| 53 | Bixaceae | Angiosperms (Flowering plants) | 1,591 |
| 54 | Blandfordiaceae | Angiosperms (Flowering plants) | 1,591 |
| 55 | Bonnetiaceae | Angiosperms (Flowering plants) | 1,591 |
| 56 | Boraginaceae | Angiosperms (Flowering plants) | 1,591 |
| 57 | Boryaceae | Angiosperms (Flowering plants) | 1,591 |
| 58 | Brassicaceae | Angiosperms (Flowering plants) | 1,591 |
| 59 | Bromeliaceae | Angiosperms (Flowering plants) | 1,591 |
| 60 | Brunelliaceae | Angiosperms (Flowering plants) | 1,591 |