Cinnamomum camphora (Linn Presl, a species of Cinnamomum in Lauraceae, is an evergreen tree, with a height of 30m and a DBH of 5m, and its bark splits irregularly longitudinally. Branches, leaves and wood all smell of camphor. Leaves alternate, thin leathery, ovoid or ovoid-elliptic, 5 5- 10/0cm long and 2.5-5.5cm wide, with sharp tip or near tail tip, wide wedge-shaped to nearly round base, full-margin, slightly wavy, hairless on both sides, three veins falling off at the base, feather veins coexisting, and obvious glandular pits in the axils; The petiole is 2-3 cm long. Flowers bisexual, panicles axillary. Berries are nearly spherical, 4.5-6 mm in diameter, initially green, turning red, and shiny purple-black when ripe; The top of the fruit holder is flat. The flowering period is April-May. The fruit 10- 1 1 ripens, bears fruit in different years, and produces high yield once every two years. Cinnamomum camphora is a warm-loving tree species. The most suitable local annual average temperature is 16 ~ 17OC, and the absolute minimum temperature is not lower than -7oC. The requirement of Cinnamomum camphora for soil is that the soil layer is deep and fertile, and it is neutral or acidic when wet (pH 5.5 ~ 7). Cinnamomum camphora is resistant to low temperature, likes shade when it is young, likes strong light in its prime, and has a long life. There are often old trees beside the village.
Cinnamomum camphora has fine wood grain, flexible and compact, smooth and beautiful appearance, moderate hardness, easy processing, containing volatile oil and special fragrance, moisture-proof, anti-corrosion, insect repellent, small deformation and long shelf life. It is a valuable material for furniture, architecture, cabinets, sculpture and shipbuilding. Camphor and camphor oil can be extracted from roots, branches, leaves and wood. Camphor and camphor oil are important raw materials for modern medicine, metallurgy, chemicals, spices, food industry and military industry, and the seeds can be squeezed to make soap. Camphor and camphor oil are also our traditional export commodities. Cinnamomum camphora has the advantages of fast growth, long life, stretched crown, strong trunk, strong wind resistance, less pests and diseases, strong germination, dark green luster of leaves, and no fear of smoke and dust. It is a precious timber and special economic tree species in southern China, and it is also an important tree species for forest protection, fire prevention, soil and water conservation and urban greening. Planting Cinnamomum camphora on all sides can beautify and purify people's working, learning and living environment. If planting Cinnamomum camphora is combined with building a biological fire belt, it can also be used as a fire belt, saving investment in fire belt.
Cinnamomum camphora is an evergreen tree of Lauraceae. As high as 50 meters and hundreds of years old, it is a towering old tree and an excellent landscaping tree. Bark is green and smooth when it is young; It gradually becomes yellowish brown or grayish brown longitudinal crack when it is old. Winter buds are oval. The leaves are thin leathery, ovoid or elliptic-ovoid, 5 5- 10/0cm long and 3.5-5.5cm wide, with short tip or near tail tip, rounded base, three veins from the base, the first or second pair of lateral veins near the base are long and protruding, the back is slightly covered with white powder, and there are glandular points in the axils of the veins. Yellow-green flowers, spring flowers, axillary panicles, small and numerous. Spherical fruit is dark purple when it matures, with a diameter of about 0.5 cm; The flowering period is from April to May, and the fruiting period is10-165438+10.
The taupe bark has fine longitudinal cracks in the deep groove. The whole plant of Cinnamomum camphora has a smell similar to camphor, with alternate leaves, paper or thin leather, and the trunk has obvious longitudinal cracks, which is very easy to identify. It is said that it is of great significance because there are many lines on camphor wood. So add a wooden character next to the word "Zhang" as the name of the tree.
Camphor tree is an evergreen tree. Its evergreen is not deciduous, but after the new leaves grow in spring, the old leaves began to fall off last year, so it presents a scene full of green all year round ... Cinnamomum camphora's florets are very unique, with 6 flowers on the periphery that are difficult to distinguish between calyx or petals, 9 stamens in the center, and every 3 flowers are arranged in 1 round.
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. However, if you pay attention to observation, you will also find that camphor trees will also be attacked by pests and diseases. It is always the same thing that nature is so fair. Can be used as a material for mothballs.