Is the camphor tree deciduous or evergreen How the leaves grow The shape of the leaves? 5

The camphor tree (cinnamomum camphora) used to be an important natural resource in Taiwan, and the whole plant has an aromatic camphor flavor. Camphor trees are also common street trees and landscape trees, and the green tunnel between the name and the market is mainly camphor trees. The irregular deep and longitudinal cracks in the bark on the trunk are said to be the basis for the name of the camphor tree to be carved like a seal.

The camphor tree is an evergreen tree, and its evergreen is not that it does not fall off leaves, but that after the new leaves grow in spring, the old leaves of last year begin to fall off, so it presents a green scene all year round.

From January to April, the flowers are in full bloom, and the flowers are mixed among the new branches and leaves. The camphor trees in the south bloom first and gradually spread to the north; It is generally referred to as the moon-flowering camphor and the moon-flowering is camphor, which is only a distinction between the different varieties of the camphor tree. The flowers of the camphor tree are small, about only about one in diameter, arranged in conical inflorescences.

The flowers are small, but when they are in full bloom, the whole tree is covered in small yellow-green flowers and young leaves, which makes the eyes shine and the fragrance that gives off is pleasant.

The small flowers of the camphor tree are very unique, and there are 6 tepals on the periphery that are not easy to distinguish the calyx or petals, and there are 9 stamens in the center, which are arranged in 1 round for every 3 pieces, plus 2 rounds of tepals on the periphery, there are 5 rounds in total, and they grow in an alternate arrangement from the outside to the inside. The way in which the anthers of the stamens dehisce is very peculiar, just like a window that can be extrapolated to push outwards, the opening of one petal, each stamen, has 4 petals. This pattern of flap fissure is an important feature of Lauraceae.

On the outer 2nd round of stamens, the anthers face the center of the flower, while the anthers of the 3rd round of stamens are facing away from the center of the flower (outward) and have 2 yellow dots at the base of the filaments. The pistil is single, and the stigma is swollen and transparent.

During flowering, bees and flies can be seen flying, which is an important medium for pollination. At the beginning of fruiting, the tepals and stamens fall off, the young fruit is oily and green, mixed with white spots, and the stalk at the base is swollen into a cup; When the fruit turns from green to black when ripe, it is the favorite food of the Pulsatilla, a common bird in the countryside, when the trees chirp from morning to night, and the seeds are also spread by it.

The branches of the camphor tree stop growing after the top of the branch and flowering, and the scales of the dormant buds are few and small, indicating that the camphor tree grows in an environment that is less exposed to frost and snow. When the flowering period is over, some shoots start to grow again. The young leaves are yellowish-green, covered with fine pubescence on both sides, and then gradually fall off, and the adult leaves are smooth and oily dark green, with white powder on the back of the leaves.

The leaf veins are in the form of three veins, the second lateral vein grows about two-thirds of the way from the base of the leaf, the lateral veins are about 2 to 3 pairs, and the axillary veins are at the intersection of the middle rib and the lateral veins.

The camphor tree is an evergreen tree in the Lauraceae family.

The leaves are alternate, ovate, shiny above, slightly grayish-white below, with three veins off the base, and glands in the axils of the veins. Flowering in early summer, the flowers are small, yellow-green, panicles. The drupes are small and spherical, purplish-black, with a cup-shaped fruit tray at the base.

It is widely distributed in all parts of the Yangtze River in China, with Taiwan being the most numerous. The whole plant has the aroma of camphor, which can be used to extract camphor and extract camphor oil. The wood is hard and beautiful, suitable for furniture, boxes, and greening trees, street trees.

Roots, wood, branches, leaves can be extracted, camphor oil, the main components of the oil are camphor, pine oil dicyclic hydrocarbons, camphorene, citron hydrocarbons, eugenol, etc. Camphor is used for medicine, plastics, explosives, antiseptic, insecticide, etc., and camphor oil can be used as raw materials such as pesticides, mineral processing, soap, fake lacquer and flavors; The wood material is excellent, insect resistant, water and moisture resistant, and is used for construction, shipbuilding, furniture, cabinets, sheets, carving, etc.; The branches and foliage are dense, the tree shape is beautiful, and it can be used as a pure green street tree and windbreak. The wood of the camphor tree is rot-resistant, insect-proof, dense and fragrant.

It is a good material for furniture and carving; In addition to being used to refine camphor, or cultivated as street trees and landscape trees, camphor also has a strong antipyretic, insecticidal effect, if you go to outdoor activities in summer, you can try it: pick the leaves of the camphor tree, crush it and apply it on the surface of the hands and feet, which has the effect of preventing mosquitoes. Scientific research has proved that the pine oil dicyclic hydrocarbons, camphorene, citric hydrocarbons, eugenol and other chemicals emitted by the camphor tree have the ability to purify toxic air, have anti-cancer effects, filter out fresh and clean air, and refresh people's hearts and spleens.

Living in an environment with camphor trees for a long time will make a celebration to avoid suffering from many difficult diseases. Therefore, the camphor tree has become the preferred tree for landscaping in many cities and regions in the south, and is favored by the landscaping industry.

The leaves of the camphor tree: green in color, the leaves are thin and leathery, ovate or elliptic-ovate in shape, five to ten centimeters long and three to five centimeters wide.

The fruit of the camphor tree: spherical in shape, purple-black when ripe.

Camphor tree, aliases: camphor tree, camphor, camphor wood, Yaoren firewood, camphor this talk about change, stinky camphor, black camphor; Lauraceae and Cinnamomum lauraceae are large evergreen trees, up to 30 meters tall and 3 meters in diameter, with a broadly ovate crown; The canopy is wide, the branches and leaves are dense, and the momentum is majestic, and it is an excellent greening tree, street tree and shade tree. It is widely distributed in all parts of the Yangtze River in China, with Taiwan being the most numerous.

The whole camphor tree has the aroma of camphor, which can be used to extract camphor oil and prepare camphor hearth. The wood is hard and beautiful, and the material is of high quality, which is suitable for furniture. Camphor tree is resistant to harmful gases such as chlorine, sulfur dioxide, ozone and fluorine, can repel mosquitoes and flies, and can withstand short-term flooding, and is the main raw material for the production of camphor.

<> leaves alternate, papery or thinly leathery, ovate or elliptic-ovate, 5 to 10 cm long, to cm wide, apex short or nearly caudal cucum, base rounded, 3 veins from the base, the first or second pair of lateral veins near the base of the leaf are long and prominent, slightly powdery on the back, veins with glandular points in the axils. The camphor tree is an evergreen tree, and its evergreen is not that it does not fall off its leaves, but that the old leaves begin to fall off after the new leaves grow in spring, so it presents a green scene all year round.

The smell and aroma of the camphor tree is very unique, there are many leaves, and a lot of oxygen can be released under the light, and the main effect is to dry the leaves or put them in the wardrobe with bark and trunks, which can prevent insects from eating clothes; It can also be used as a wardrobe from its panels.