Bintaro or pong pong ( Cerbera odollam ) is a plant species in Apocynaceae, a medium-sized tree with circular branches around the trunk, non-woody, gummy white, highly poisonous and the leaves are used for bioinsecticide, seeds are used as biodiesel material and often used for ornamental plants. C. odollam is less than 17 meters tall, grows upright, has low and sideways branches to form an umbrella canopy, the bark is thin and dark brown, lots of white sap, the whole stem has traces of circular petioles. Leaves have large stalks with thick strands, inverted or elongated ovoid, 4.5-7 cm wide, 15-30 cm long, blunt base, sharp tip, a large bone in the middle with sideways veins, dark green and shiny upper surface, the lower surface is lighter. The white flower is located at the end of the stem and long stalk. Trumpet-shaped crown with five tongues, tube 1.5-2 cm long, white with yellow tunnels and a few yellow hairs. The fruit is round, green in color with a green fibrous shell enclosi...