Propagation
Divide tubers when dormant.

Botanic information
Leaf: The dark green pinnate leaves have ovate leaflets with an acuminate apex and a short stalk.

Flower: The small papillionate (pea-shaped) pink-purplish flowers are arranged in short raceme that appears just above the foliage during late summer.

Fruit: The pods are flattened and contain small dark seeds. The small seeds are viable but the plant may be easily reproduced vegetatively.