Tree and plants branches of several sizes.
The branches of this dead Camelthorn tree within Sossusvlei are clearly visible
The branches and leaves of a tree.
Looking up into the branch structure of a Pinus sylvestris tree
Leafless tree branches during winter

A branch (UK: /ˈbrɑːn/ or UK: /ˈbræn/, US: /ˈbræn/) or tree branch (sometimes referred to in botany as a ramus) is a woody structural member connected to but not part of the central trunk of a tree (or sometimes a shrub). Large branches are known as boughs and small branches are known as twigs.[1] The term "twig" often refers to a terminus, while "bough" refers only to branches coming directly from the trunk.

Due to a broad range of species of trees, branches and twigs can be found in many different shapes and sizes. While branches can be nearly horizontal, vertical, or diagonal, the majority of trees have upwardly diagonal branches. A number of mathematical properties are associated with tree branchings: they are natural examples of fractal patterns in nature, and, as observed by Leonardo da Vinci, their cross-sectional areas closely follow the da Vinci branching rule.

  1. ^ Driscoll, Michael; Meredith Hamiltion; Marie Coons (May 2003). A Child's Introduction Poetry. 151 West 19th Street New York, NY 10011: Black Dog & Leventhal Publishers. p. 10. ISBN 1-57912-282-5.CS1 maint: location (link)

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