Oak is 25 to 30 meters high, and its bark is dark grayish brown and slightly smooth.

Branchlets brown and glabrous.

The oak tree is very tall, protecting other weak trees like his father. To the Oak is a poem praising the oak tree.

There are many kinds of oak trees, such as white summer oak, red oak and so on.

Its fruit is a kind of nut, which is well known to people.

Oak, also known as oak or oak.

A general term for FAGACEAE plants, including species of Quercus, Cyclobalanopsis and Gramineae, usually referring to Quercus plants rather than specific tree species.

There are 6 15 species of Quercus, of which 450 species are from Quercus subgenus, and 188 is Quercus subgenus.

Its fruit is called acorn, and its wood is generally called oak.

Oak is the largest flowering plant in the world; Life is very long, it has a life span of 400 years.

The fruit is nuts, one end is hairy and the other end is bare, which is the first-class food for squirrels and other animals.

It is found that a Jurupa oak tree in California, USA has survived for at least 6.5438+0.3 million years, which may be the oldest known creature in the world.

April 30, 20001The American Arbor Day Foundation recently announced that the oak tree was selected as the national tree of the United States through public network voting.