Propagated by seeds sown in spring on a hot-bed.
Biota. See [Thuya].
Biotia. See [Madia].
Bird of Paradise Flower. See [Strelitzia].
Bird’s-tongue Flower. See [Strelitzia].
Birch. See [Betula].
Birthwort. See [Aristolochia].
Bitter Sweet. See [Celastrus] and [Solanum].
Bitter Vetch. See [Orobus].