it is a large annual hern 60-100 cm tall. Stem is robust, erect, leafy with velvety branches. Alternately arranged leaves, 5-8 cm long, are obovate to lanceshaped, with base narrowing into the stalk. Flower-heads are borne at the end of branches in 10-20 cm clusters. Flowers are tubular, 5-lobed. Seed pods are 4-6 cm long, 10 ribbed,