Pericarpium. Capsula triangularis, compressa, acuta, unilocularis, bivalvis.
Semen unum, reniforme.
Empalement. Cup one-leaf, bell-shaped, five-toothed; segments equal, upright.
Blossom butterfly-shaped, five-petalled.
Standard heart-shaped, upright.
Wings oblong, half the length of the standard.
Keel two petals, a little shorter than the wings.
Chives. Threads ten, distinct, turned upwards, the length of the keel. Tips simple, very small.
Pointal. Seed-bud oblong egg-shaped. Shaft awl-shaped, of the same size and station as the chives. Summit pointed.
Seed-vessel. Capsule triangular, flat, sharp pointed, one cell, two valves.