Vexillary aestivation is characteristic of the family (a) Fabaceae (b) Asteraceae (c) Solanaceae (d) Brassicaceae.
Option A Vexillary or descending imbricate aestivation is a characteristic of family Fabaceae. In it, the posterior largest petal (standard) overlaps two lateral petals (wings) which in turn overlap two anterior petals (keel). It is also called pailionaceous corolla
