Jackfruit is a species of tree in the mulberry family, which is native to parts of South and Southeast Asia.It is the national fruit of Bangladesh.It is well suited to tropical lowlands. Its fruit is the largest tree borne fruit in the world, seldom less than about 25 cm (10 in) in diameter.Jackfruit is commonly used in South and Southeast Asian cuisines. It can be eaten unripe when cooked, or ripe uncooked. The seeds may be boiled or baked like beans. The taste is similar to chestnuts. The leaves are used as a wrapping for steamed Idlis.