banyan, (Ficus benghalensis, or F. indica), unusually shaped tree of the fig genus in the mulberry family (Moraceae) native to tropical Asia. Aerial roots that develop from its branches descend and take root in the soil to become new trunks. The banyan reaches a height up to 30 metres (100 feet) and spreads laterally indefinitely. One tree may in time assume the appearance of a very dense thicket as a result of the tangle of roots and trunks.
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