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banyan trees | by Michael Leggero
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banyan trees

A banyan (also banian) is a fig that starts its life as an epiphyte when its seeds germinate in the cracks and crevices on a host tree (or on structures like buildings and bridges). "Banyan" often refers specifically to the Indian Banyan or Ficus benghalensis, the National tree of India,[1] though the term has been generalized to include all figs that share a unique life cycle, and systematically to refer to the subgenus Urostigma.[2] The seeds of banyans are dispersed by fruit-eating birds. The seeds germinate and send down roots towards the ground, and may envelop part of the host tree or building structure with their roots, giving them the casual name of "strangler fig." The "strangling" growth habit is found in a number of tropical forest species, particularly of the genus Ficus, that compete for light.[3][4][5] Any Ficus species showing this habit may be termed a strangler fig.

The leaves of the Banyan tree are large, leathery, glossy green and elliptical in shape. Like most fig-trees, the leaf bud is covered by two large scales. As the leaf develops the scales fall. Young leaves have an attractive reddish tinge.[6]

Older banyan trees are characterized by their Aerial prop roots that grow into thick woody trunks which, with age, can become indistinguishable from the main trunk. Old trees can spread out laterally using these prop roots to cover a wide area. Like other Fig species (which includes the common edible fig Ficus carica), banyans have unique fruit structures and are dependent on fig wasps for reproduction.

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Taken on March 30, 2012