Annual herb up to 60 cm high. Leaves: petiole 1.5-4 cm long; blade ovate, 2.5-8 (-10) by 1.5-6 cm, base horizontally truncate, long decurrent, apex acute, with 4-5 primary nerves on each side and a network of nerves of higher order, short strigillose on upper, appressed hairy with longer bristles along main nerves on the lower side. Inflorescence simple, spike-like, elongate, ebracteate. Stamens: anthers subsessile at about the middle of the tube. Fruit shallowly two-lobed with margins of lobes meeting each other above middle of fruit, parting into 2 two-locular halves.
Puger in the East, South America, from Bogor to Depok in the West, near Malang
A native of South America; in Malesia naturalized in parts of Java (from Bogor to Depok in the West, near Malang and Puger in the East).