Share
Blog
Print
Email
BookmarkThe term oak can be used as part of the common name of any of several hundred species of trees and shrubs in the genus Quercus, and some related genera, notably Cyclobalanopsis and Lithocarpus.
The genus is native to the northern hemisphere, and includes deciduous and evergreen species extending from cold latitudes to tropical Asia and the Americas. Oaks have spirally arranged leaves, with a lobed margin in many species; some have serrated leaves or entire leaves with a smooth margin.
The flowers are catkins, produced in spring.
The fruit is a nut called an acorn, borne in a cup-like structure known as a cupule; each acorn contains one seed (rarely two or three) and takes 6-18 months to mature, depending on species.
Oaks are hardwood trees, and the wood is commonly used in furniture and flooring..
For more information about the topic Oak tree, read the full article at Wikipedia.org, or see the following related articles:
Toxicodendron — Toxicodendron is a small genus of woody trees, shrubs and vines, all of which produce the skin-irritating oil urushiol, which can cause a severe ... > read more
Nut (fruit) — A nut in botany is a simple dry fruit with one seed (rarely two) in which the ovary wall becomes very hard at maturity, and where the seed remains ... > read more
Deciduous — In botany, deciduous plants, principally trees and shrubs, are those that lose all of their foliage for part of the year. In some cases, the foliage ... > read more
Poison ivy — Poison ivy is a woody vine that is well-known for its ability to produce urushiol, a skin irritant which for most people will cause an agonizing, ... > read more
