Jackfruit is an exotic & weird fruit, that just by its appearance you can see that it is special. The jackfruit is also known as jack tree, Its scientific name is Artocarpus heterophyllus. The jackfruit is a multiple fruit composed of hundreds to thousands of individual flowers, and the fleshy petals of the unripe fruit are eaten. 8) In Indonesia, the wood of the jackfruit tree is used to maked the famous ‘gamelan’ drums. Every part of the jackfruit tree is medicinally beneficial, the bark, leaves, pulp, skin and roots.