Dicot.  Showy flowers irregular with five petals:  uppermost generally largest and called the banner; 2 at the sides called the wings; 2 lower petals joined and folded in a boat-shaped keel which encloses the 10 stamens and simple pistil.  Fruit a one-chambered, several-seeded pod called a legume, such as bean or pea pods.  Herbaceous plants, shrubs or trees with alternate compound leaves, often with stipules.