Tree | Definition, Structure, Uses, Importance, & Facts | Britannica
- tree, woody plant that regularly renews its growth (perennial). Most plants classified as trees have a single self-supporting trunk containing woody tissues, and in most s…
- To many, the word tree evokes images of such ancient, powerful, and majestic structures as oaks and sequoias, the latter being among the most … See more
- The ancient Greeks developed a classification about 300 bce in which pla…
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- Trees are represented in each of the major groups of the vascular plants: pteridophy…
- Although tree ferns account for only a small percentage of ferns, many are cons…
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- The tree is not an immutable biological category but rather a human concept bas…
- As seen in the section above, trees are found among many plant families that al…
- Consequently, from both a taxonomic and a phylogenetic perspe… See more
Tree - Wikipedia
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees.
Wikipedia · Text under CC-BY-SA licenseAnatomy of a tree - US Forest Service
- A: The outer bark is the tree's protection from the outside world. Continually renewed from …
- B: The inner bark, or “phloem”, is pipeline through which food is passed to the rest of the tree. …
- C: The cambium cell layer is the growing part of the trunk. It annually produces new bark and …
- D: Sapwood is the tree's pipeline for water moving up to the leaves. Sapwood is new wood. …
- E: Heartwood is the central, supporting pillar of the tree. Although dead, it will not decay or …
Tree - Structure, Growth, Adaptation | Britannica
4 days ago · Tree - Structure, Growth, Adaptation: Generations of terrestrial plants recycling nutrients and energy into the stratum led to the contribution of developing rich organic soil …
121 Types of Trees with Their Name and Picture
Jan 22, 2024 · Trees provide shade, shelter, oxygen, and many even produce fruit. There are over 60,000 species of trees that come in all shapes and sizes, from …
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