Tree wiki:
>This article is about the biological organisms known as trees. For other meanings of the word see tree (disambiguation). A tree can be defined as a large, perennial, woody plant. Though there is no set definition regarding minimum size, the term generally applies to plants at least 6 m (20 ft) high at maturity and, more importantly, having secondary branches supported on a single main stem or trunk (see shrub for comparison). Compared with most other plant forms, trees are long-lived. A few species of trees grow to 100 m tall, and some can live for several thousand years.
See more at Wikipedia.org...
Branch wiki:
[ of a woody plant such as a tree, shrub, or vine. It is any woody structural member that is not the central trunk or trunks and which supports the terminal twigs, which in turn support the leaves. Branches may be oriented in any direction from horizontally to vertically, but usually have bark similar to the upper trunk (whereas twigs often have markedly different bark).
See more at Wikipedia.org...]