The oak tree is the undisputed king of the Western world. It is known for its lobed leaves and the large cap of its acorn, a nut found on all trees of genus Quercus. The leaves absorb CO2, and produce sugars by means of photosynthesis transpiration in the leaves pulls the xylem sap upward. like many other trees in the world. Tress grow in any place where there is sufficient water in the soil. So the lives of them are so hard.
The tree’s main trunk grows upward and branches out toward the top. Oaks are a large group, containing many types of deciduous trees. Under optimal conditions oaks can grow to a height of more than 130 feet(40m) and live an average of 600 years.
The trunk is strong and grows straight upward. The top of the tree widens with branches, which may be twisted, knotted, or bent. Leaves: are arranged, one leaf to a stem, in alternating sides of the twig. They have rounded lobes on either side of the main vein. The trees produces hanging male flowers, whereas female flowers are hidden among the leaves. Buds are formed by protective scales that fall off in the spring. They grow into new leaves and branches. During the leaves undertake photosynthesis and the rest of the tree uses the sugars it produces. In the Fall, the leaves stop making chlorophyll, and carotenoids and anthocyanins produce fall colors of red, orange, and bronze. The leaves fall away, and the tree remains dormant in the coldest season .And new leaves begin to replace the old ones from Spring. In its first year of life an oak tree’s roots can grow nearly 5 feet. It also have dark stripes along their length. Their caps have flat scales. Some species have sweet-tasting seeds; others are bitter. Remains of the carpel. A hard seed that does not spilt open at maturity.
