Branch: Lauraceae alias: Cinnamomum camphora, Cinnamomum camphora, Cinnamomum camphora, Cinnamomum camphora, Cinnamomum camphora (approved by the State Council on August 4th, 1999). This tree is 55 meters high and has a history of hundreds of years. It is a towering ancient tree and an excellent landscaping tree. When young, the bark is green and smooth, and gradually becomes yellowish brown or grayish brown longitudinal crack when old; Winter buds are oval. Leaves are thin leathery, oval or oval, 5 5- 10/0cm long and 3.5-5.5cm wide.
The shape of Cinnamomum camphora is (19) meters, with short tip or near tail tip, round base, three veins from the base, the first or second pair of lateral veins near the leaf base are long and protruding, the back is slightly covered with white powder, and there are glandular points in the axils of leaf veins. Panicles are born in the axils of new branches. Flowers are yellow-green, open in spring, and panicles are small and numerous. The fruit is spherical and purple-black when it is ripe. The flowering period is from April to June, and the fruiting period is10-165438+10. Because there are many lines on the wood of camphor tree, it seems to be full of articles, so a wooden word is added next to the word "Zhang" as the name of the tree, which is called "camphor tree". The main producing areas mainly grow in sunny slopes, valleys and river banks with fertile subtropical soil; It is distributed in the south and southwest of the Yangtze River, and the vertical elevation of the growing area can reach 1000M, especially in Yibin, Sichuan. In 2006, Cinnamomum camphora was elected as the "city tree" in Yibin, enjoying the reputation of "city tree" in Yibin and becoming the main forest tree in Yibin. Under the vigorous advocacy of the government, Yibin has formed a large number of artificial camphor tree forest farms, among which Gangping Forest Farm in Yibin County is the most successful, which has made great contributions to beautifying the natural environment and increasing people's economic income! This species is an important timber and special economic tree species in subtropical area (southwest of China). Camphor and camphor oil can be extracted from roots, trees, branches and leaves. The main components of oil are camphor, terpenoid bicyclic hydrocarbons, camphene, limonene and eugenol. Camphor is used in medicine, plastics, explosives, antisepsis and pesticides, and camphor oil can be used as raw materials for pesticides, mineral processing, soap making, fake paint and essence. Wood is of excellent quality, insect-resistant and moisture-proof, and can be used in construction, shipbuilding, furniture, cabinets, plates, sculpture and so on. Dense branches and beautiful trees can be used as green street trees and windbreaks. The wood of camphor tree is antiseptic, insect-proof, dense and fragrant. It is a good material for making furniture and sculptures; Besides being used for extracting camphor, or being cultivated as street trees and landscape trees, camphor also has the effects of strengthening the heart, relieving fever and killing insects. If you go outdoors in summer, you can try: pick the leaves of camphor tree, crush them and apply them on the surfaces of hands and feet, which has the effect of preventing mosquitoes. According to scientists' research, chemicals such as terpenoids such as bicyclic hydrocarbons, camphenes, limonene and eugenol emitted by camphor trees have the ability to purify toxic air, have the functions of preventing cancer and insects, and filter out fresh and clean air, which makes people feel refreshed. Living in an environment with camphor trees for a long time will avoid suffering from many incurable diseases. Therefore, Cinnamomum camphora has become the first choice for landscaping in many cities and regions in the south, and is favored by the landscaping industry. Accustomed to camphor trees like light, slightly resistant to shade; I like warm and humid climate, and my cold tolerance is not strong. I am not strict with the soil, and I am more resistant to water and humidity, but I am not resistant to drought, barren and saline-alkali. The taproot is developed and deep, and can resist wind. Strong germination and pruning resistance. The growth rate is moderate, and the tree shape is huge like an umbrella, which can provide shade and keep out the cold. It has a long survival period, can grow into a towering ancient tree for hundreds of years, and has a strong ability to smoke and dust, conserve water, fix soil and prevent sand, and beautify the environment! In addition, it can resist tidal wind, smoke and toxic gases, and can absorb a variety of toxic gases, which is more suitable for urban environment. Garden application This tree species has dense branches and leaves, large crown, strong shade and magnificent posture. It can eliminate smoke and dust, keep water, fix soil and prevent sand, and beautify the environment. It is an excellent tree species for urban greening and is widely used as shade trees, street trees, shelter forests and scenic forests. Chi Pan, waterside, hillside and other places. Cluster planting, group planting, solitary planting or as a grassland background tree.