Jatropha gossypiifolia, commonly known as bellyache bush, black physicnut or cotton-leaf physicnut, is a species of flowering plant in the spurge family, Euphorbiaceae. The species is native to Mexico, Philippines, South America, Gujarat State (India), and the Caribbean islands. It is a declared noxious weed in Puerto Rico and is naturalised in northern Australia, including Queensland where it is listed as a Class 2 declared pest plant. It grows to 2.5–4 m (8.2–13.1 ft) high. The three