Empalement. Cup one-leaf, short, bell-shaped, hunched at the base on the upper side; mouth five-toothed, oblique, obtuse.
Blossom butterfly-shaped, five petalled.
Standard oblong, gradually wider, straight, reflexed at the sides.
Wings two, oblong, appendicled at the base, the length of the standard.
Keel two petalled with the petals conformable to the wings, the lower margins approaching and boat-shaped.
Chives. Ten threads, distinct, parallel, and shaped, the length of, the blossom, within the keel. Tips very small, turned upwards.
Pointal. Seed-bud oblong, cylindrical. Shaft the size and situation of the chives. Summit blunt.
Seed-vessel. Pod very long, slender, one-celled, knobbed at the seeds.
Seeds many, roundish.
SPECIFIC CHARACTER.