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Save Earth // 101947176 / Don Farrall / Ripped from the ground a tree will bear no fruit.
A tree is a perennial woody plant . It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance . A minimum height specification at maturity is cited by some authors, varying from 3 m to 6 m; some authors set a minimum of 10 cm trunk diameter (30 cm girth). Woody plants that do not meet these definitions by having multiple stems and/or small size are usually called shrubs , although many trees such as Mallee do not meet such definitions. Compared with most other plants, trees are long-lived, some reaching several thousand years old and growing to up to 115 m (379 ft) high.
Trees are an important component of the natural landscape because of their prevention of erosion and the provision of a weather-sheltered ecosystem in and under their foliage . They also play an important role in producing oxygen and reducing carbon dioxide in the atmosphere, as well as moderating ground temperatures. They are also elements in landscaping and agriculture , both for their aesthetic appeal and their orchard crops (such as apples ). Wood from trees is a building material , as well as a primary energy source in many developing countries. Trees also play a role in many of the world's mythologies (see trees in mythology ).
Description above from the Wikipedia article Tree, licensed under CC-BY-SA full list of contributors here. This page is not affiliated with, or endorsed by, anyone associated with the topic.
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