Goniothalamus macrophyllus is a small tree, or treelet that can grow around 3-4 m tall. It has a smooth stem and brownish-green outer bark. The genus derived from two Greek words, Gonia in Greek means angle, while thalamus is the base of the flower, or the receptacle. Goniothalamus are typically identified by its sepal which is shaped like a triangular or three-angles star. In Malaysia, this species is known as gajah beranak or lada hutan. The treelet sprouts inflorescence along its main stem and branches. The yellow-green flower turns dark red upon maturity. Meanwhile, the fruit is green and glossy. The mempisang treelet grows on the lowlands and up to lower montane forest. The decoction of Goniothalamus roots is used in postnatal treatment and when applied externally, it is useful for the treatment of cold, fever and typhoid fever. The leaves are used traditionally to repel mosquitoes, poisonous snakes and wild animals (Ummul-Nazrah, 2016).