Bilocellate. Having two secondary cells.
Bilocular. Two-celled.
Bisexual. Having both stamens and pistils.
Bladdery. Thin and inflated.
Blade. The limb or expanded portion of a leaf, etc.
Bract. A more or less modified leaf subtending a flower or belonging to an inflorescence, or sometimes cauline.
Bracteate. Having bracts.
Bracteolate. Having bractlets.
Bracteose. With numerous or conspicuous bracts.
Bractlet. A secondary bract, as one upon the pedicel of a flower.