Goniothalamus macrophyllus

Goniothalamus macrophyllus is a species of plant in the family Annonaceae. It is native to Borneo, Java, the Malay Peninsula, Sumatra and Thailand. Carl Ludwig Blume, the German-Dutch botanist who first formally described the species using the basionym Unona macrophylla, named it after its large leaves (Latinized forms of Greek μακρός, makrós and φύλλον, phúllon). It is commonly called Penawar Hitam in the Malaya Peninsula, Ki Cantung in Indonesia, Limpanas Putih in Brunei, and Chin Dok Diao in Thailand....read more on Wikipedia.