Trees on a mountain in northern
Utah during early
autumnA
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.
[1] A minimum height specification at maturity is cited by some authors, varying from 3 m
[2] to 6 m;
[3] some authors set a minimum of 10 cm trunk diameter (30 cm girth).
[4] Woody plants that do not meet these definitions by having multiple stems and/or small size are called
shrubs. 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.
[5]
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