| Begonia hugelii | Bothriochilus bellus | Genus Bothriochloa | Genus Bothriospermum | Genus Botrychium | Genus Bouchea | Genus Bouchetia | Genus Bougainvillea | Genus Bourreria |

| Anurida tullbergi | Ardisia escallonoides | Asplanchna amphora | Bombylius aureocookae | Crataegus chrysophyta | Curimata magdalenae | Gadomus longifilis | Nanomitrium austinii var. floridanum | Parabopyrella setoensis |

| Biryusinsk | Birza | Birzai | Bisaccia | Bisacquino | Bisalpur | Bisauli | Bisbee | Biscarrosse | Biscayne Park |

| Bischel Dam | Biscuit Mound | Bishop Brook | Bishop Cemetery | Bishop Church | Bishop Creek | Bishop Creek Elementary School | Bishop Ireton High School |