| Label | Id | |
|---|---|---|
| Bianquea | 2944146 | |
| Bianqueaceae | 2944142 | |
| Bifusisporella | 2584417 | |
| Blenina | 944166 | |
| Bloomeria | 51441 | |
| Blossfeldia | 154410 | |
| Blumeopsis | 441192 | |
| Blyxa | 55441 | |
| Boergesenia | 204411 | |
| Boodlea | 204413 | |
| Boragininae | 1874412 | |
| Boreocyphini | 1944126 | |
| Bostrichus | 441260 | |
| Bothriocotyle | 1684413 | |
| Bothriosperminae | 1874413 |