Basal, Basilar. At or pertaining to the base.
Basifixed. Attached by the base.
Beaked. Ending in a beak or prolonged tip.
Bearded. Bearing a long awn, or furnished with long or stiff hairs.
Berry. A fruit the whole pericarp of which is fleshy or pulpy.
Bi- or Bis-. A Latin prefix signifying two, twice, or doubly.
Bidentate. Having two teeth.
Biennial. Of two years' duration.
Bifid. Two-cleft.
Bilabiate. Two-lipped.