Convolvulus cairicus Linnaeus, Syst. Nat. (ed. 10) 2: 922. 1759; C. tuberculatus Desrousseaux; Ipomoea palmata Forsskål; I. stipulacea Jacquin; I. tuberculata (Desrousseaux) Roemer & Schultes.

Middle lobe of leaf 4-5 2-2.5 cm. Corolla 5-7 cm.

The entire plant is used for treating external infections. Thickets, roadsides, waste places, cultivated areas, sunny meadows in lowlands; 100-600 m. Fujian, Guangdong, Guangxi, Hainan, Taiwan, Yunnan [India, Indonesia, Japan (Ryukyu Islands), Malaysia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Africa, SW Asia, Pacific Islands, South America]