Crotalaria juncea

Crotalaria juncea is an annual, tropical, shrubby legume. It is commonly believed to have originated in India.
It grows to a height of 4 meters

Leaves arranged spirally along the stem, hairy, simple, oblong, lanceolate or elliptical in shape.

Flowers yellow, showy, gathered in terminal clusters.

The fruit is a cylindrical, hairy pod with many seeds.