The root of this plant is horizontal, very long, with a thick bark. The stem is round and procumbent, branches two or three feet long; when young, white and silky; when old, dark and naked. The leaves are alternate, sessile, oblong and obovate, hoary and entire. The flowers are red on short stalks. Calyx has four sepals, and corolla four petals. The fruit is a dry, hairy drupe.