1. (n.) A leaf, usually smaller than the true leaves of a plant, from the axil of which a flower stalk arises.

2. (n.) Any modified leaf, or scale, on a flower stalk or at the base of a flower.

blade bracteole bractlet cotyledon flag floral leaf foliole frond glume involucre involucrum lamina leaf leaflet lemma ligule needle petal pile pine needle seed leaf sepal spathe spear spire stipula stipule