The jackfruit (alternately jack tree, jakfruit, or sometimes simply jack or jak; Artocarpus heterophyllus), is a species o tree in the Artocarpus genus o the mulberry family (Moraceae). It is native tae pairts o Smooth an Sootheast Asie, an is believed tae hae oreeginatit in the soothwastren rain forests o Indie, in present-day Kerala, coastal Karnataka an Maharashtra. The jackfruit tree is well suitit tae tropical lawlands, an its fruit is the lairgest tree-borne fruit, reachin as much as 80 pound (36 kg) in wicht, 36 inches (90 cm) in length, an 20 inches (50 cm) in diameter.