Devil Bean, Rattleweed, Shack Shack. This low growing flowering plant has bright yellow flowers. Very easy to grow, not demanding and fast growing. Attracts butterflies and bees. Grown as a green manure, fibre crop and ornamental, the plant has escaped from cultivation and become naturalized in some areas. The plant can flower and produce fruit all year round.
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby.
The plant contains alkaloids and used medicinally in some tropical countries.