The crushed branches and leaves of Platycladus orientalis have a strong aroma, and aromatic oil can be extracted. The wood of Platycladus orientalis is firm, delicate and fragrant, and it is the material for building, shipbuilding and making furniture.
In addition, cypress is also the place name of some places. For example, there is a township called "Baishu Township" in Ruyang County, Henan Province.
Alias cypress and cedar
It comes from cypress. [cedarwood (Endl. ) Franco], a plant of Cupressus in Cupressaceae, whose seeds, leaves and resins are used as medicine. In autumn, the seeds are picked before the cones crack; Harvest resin in summer and autumn; Leaves can be harvested all year round. Cypress is the floorboard of cypress. There are at least 150 species of cypress in the world, 29 species are made in China and 5 species are introduced. Cypress is very adaptable, cosmopolitan, settled in the Rocky Mountains, and covered with green plants as usual. It can not only endure the heat of 40℃, but also endure the cold of -3 1℃, so it is called "the hero of transforming nature". Cypress is not only a famous ornamental tree species in gardens, but also a good material for buildings, bridges, furniture, shipbuilding and sculpture because of its solid and smooth material, corrosion resistance and fragrant smell.
Planting cypress trees is beneficial to people's health. The aromatic gas emitted by cypress has the functions of clearing away heat and toxic materials, eliminating dampness and killing insects. According to the detection, its main components are triterpenoids and limonenes. These natural substances can not only kill bacteria and viruses, purify the air, but also have the functions of relaxing the spirit and stabilizing the mood. Japan implements forest therapy to let cancer patients go to cypress forest for recreation. Most patients' mental state improved, and some patients also eliminated nausea and vomiting caused by chemotherapy. In particular, cypress forest is filled with a large number of negative oxygen ions, which can improve human immune function and regulate the functions of respiration and central nervous system, and is known as air vitamin.
Among the members of the cypress family, the famous tree species are:
(1) Platycladus orientalis
Platycladus orientalis, also known as Platycladus orientalis, Cedar and Evergreen, is a unique tree species in China. The bark is gray, the branchlets are flat, arranged in a compound leaf shape, and the leaves are all scaly and monoecious. The flowering period is April-May. Platycladus orientalis has moderate resistance to toxic gases such as sulfur dioxide, chlorine and hydrogen chloride, and has strong dust absorption performance. Chinese medicine uses twigs, leaves and seeds as medicine. Branches and leaves have the effect of cooling blood and stopping bleeding. Indications: hematemesis, nosebleed, hematochezia, hematuria and chronic bronchitis. The seed kernel is warm and sweet, which has the function of calming the nerves and moistening dryness, and is mainly used for insomnia, constipation and other diseases. Washing the leaves with water can cure lacquer sores and dermatitis. The crushed branches and leaves of Platycladus orientalis have a strong aroma, and aromatic oil can be extracted. The wood of Platycladus orientalis is firm, delicate and fragrant, and it is the material for building, shipbuilding and making furniture.
(2) Juniper
Juniper is an evergreen tree with a height of12m; Bark is brown, longitudinally split into strips and flakes; The big branches spread obliquely or extend straight, and the branchlets droop in a triangle shape. 3 Impeller, all needle-shaped, length 12-20 mm, width 1.2-2 mm, with sharp apex and no downward extension at the base; The surface is flat and concave, the midvein is green, and there are 1 white stomata on both sides, and the edge bandwidth is greener; The back is dark green and bright, with longitudinal ridges. The cone is nearly spherical, fleshy, 6- 10 mm in diameter, with three wrinkles and triangular blunt protrusions at the top, red or reddish brown, slightly cracked at the top after maturity, and 1-3 seeds. Seeds half-moon, with 3 horns.
(3) Sabina vulgaris
Sabina vulgaris generally has no upright trunk, dense branches and leaves, distinct layers, small green leaves, evergreen seasons, elegant posture, long life and easy modeling. Sabina vulgaris has strong adaptability, likes sunshine, is resistant to shade, has strong adaptability to soil and is not strict in requirements, and can grow in neutral, slightly acidic and slightly alkaline soil.
(4) Sabina vulgaris
Also known as Sabina vulgaris, it is an evergreen tree of Sabina of Cupressaceae, with a pointed or conical crown and an oval old tree. Leaf type 2, mostly triangular diamond-shaped on young trees or tufted shoots at the base, 3 impeller-shaped, with nodes at the base and extending downward; Old trees are mostly scale leaves, opposite and close to branchlets; There are also some plants that are covered with diamond-shaped leaves since childhood. The flowers are dioecious, and the male cones are formed in autumn and open in the following year, with yellow flowers; The female cone is small in shape, and the cone is mature in the second year, which is not cracked like a berry and covered with white powder. I like light and shade, and I am not strict with the choice of soil. I require the soil to be deep, fertile, slightly wet and well drained. Deep-rooted long-lived tree species