| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Beta vulgaris ssp. maritima | 0 | 3 | 0 |
| Betula pendula Roth (Bouleau Pleureur) | 0 | 3 | 0 |
| Bivalvia Linnaeus 1758 | 0 | 38 | 0 |
| Blackstonia perfiolata | 0 | 3 | 0 |
| Blicca bjoerkna (Linnaeus 1758) (brème bordelière) | 0 | 3 | 0 |
| Blidingia minima | 0 | 3 | 0 |
| Blidingia minima | 0 | 3 | 0 |
| Bolboschoenus maritimus (L.) Palla (Scirpe Maritime) | 0 | 3 | 0 |
| Botaurus stellaris (Linnaeus 1758) (Butor étoilé) | 0 | 3 | 0 |
| Botrychium lunaria (L.) Sw. (botryche lunaire) | 0 | 3 | 0 |
| Botryllus schlosseri (Pallas 1766) (botrylle étoilé) | 0 | 3 | 0 |
| Brama brama (Bonnaterre 1788) (Brème de Mer) | 0 | 3 | 0 |
| Branta bernicla bernicla (Linnaeus 1758) | 0 | 3 | 0 |
| Branta leucopsis (Bechstein 1803) (Bernache nonnette) | 0 | 3 | 0 |
| Bryopsis hypnoides | 0 | 3 | 0 |
