Wood is one of the most widely used objects in nature and is also called the secondary xylem of plants. Wood is mainly classified according to its composition, structure, and production time. Hardwood and softwood contain parenchyma that is used for certain functions, such as photosynthesis, secretion, and storage. Hardwood and softwood are part of the wood and look very similar to each other, but they are completely different.

　　The difference between hardwood and softwood is that hardwood is obtained from woods with dicotyledonous angiosperm trees or flowering plants, while softwoods are obtained from woods with monocotyledonous and gymnosperm trees. The main water transport element in angiosperms called blood vessels is present in hardwoods, but not in softwoods.

　　Hardwood is hard and complex, with uneven texture. It is obtained from the tree of the dicot angiosperm or flowering plant. Hardwood has a more complex structure and high density. Hardwood consists of blood vessels and tracheids that transport water to different parts of angiosperms. The blood vessels in the hardwood are called angiosperm characteristics.

　　The soft woody texture is soft and the texture is light. It is obtained from trees of monocotyledonous gymnosperms or non-flowering plants. The structure of cork is simple and light, with low density. There are no blood vessels in cork. Therefore, there are more tracheids instead of blood vessels, transporting water to different parts of the gymnosperm.