International Dendrology Society (IDS) - Books & Publications. Tree Identification Using a Tree Leaf Key - Name a Tree by Studying its Leaf. Tree Identification - what is a tree. A tree looks simple when you take just a quick look.
You might not see anything remarkable when you look at the trees in your yard, for we have begun to take them for granted. A tree is actually quite complicated and could be defined as a large woody plant with a substantial root system. These perennial woody plants are usually at least twenty feet high at maturity, although there is no set height for what a tree is and what is not. A tree also has a complicated set of secondary branches that are supported by one main stem or trunk. When you compare a tree to other plant systems, trees have a very long life span. Tree - PermaWiki. File:Coastredwood.jpg 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. Trees are important components of the natural landscape and significant elements in landscaping and agriculture, supplying orchard crops (such as apples).
Sustainable Forests Partnership. Agroforestry News.