This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
Shrubs or herbs. Leaves imparipinnate; leaflets quite entire. Flowers rather large, yellow or violet, axillary, solitary, sub-umbellate or racemose. Standard petal obovate or orbiculate, keel petals about equalling the wings. Upper stamen free. Pod linear or oblong, often acute. About seven species, all Asiatic. The name is a compound of beautiful, and a lentil.
1. C. Wolgarica. - A dwarf branching shrub clothed with glandular hairs. Leaves pinnate, often crowded; leaflets roundish, entire, mucronate. Flower-spikes on long peduncles; flowers yellow. Siberia.