Semina reniformia, oblonga, compressa.
Empalement. Cup one leaf, two-lipped, upper lip notched at the end, lower three-toothed.
Blossom butterfly-shaped.
Standard, heart-shaped, blunt, notched at the top, reclined, reflexed at the sides.
Wings, egg-shaped, the length of the Standard, terminating in long claws.
Keel, narrow, twisted spirally contrary to the sun.
Chives. Threads in two sets, (simple and nine-cleft,) within the keel, spiral. Tips ten, simple.
Pointal. Seed-bud oblong, flattened, hairy. Shaft thread-shaped, spirally bent inwards, downy above. Summit blunt, thickish, hairy.
Seed vessel. A long pod, straight, leathery, blunt with a point.
Seeds kidney-shaped, oblong, flattened.