? Cypress is a treasure. Resin, tree oil, fruit, branches, leaves, seeds, roots and bark can all be used as medicine. Chinese traditional medicine believes that the aromatic gas emitted by cypress has the functions of clearing away heat and toxic materials, eliminating dampness and killing insects, and can dispel diseases and resist pathogens and cultivate healthy qi. Some natural substances such as triterpenoids and limonene contained in cypress trees can not only kill bacteria and viruses, purify the air, but also relax the spirit and stabilize the mood. After inhaling the scent of cedarwood, people can lower blood pressure, reduce cerebral blood flow and relieve depression. These may also be one of the reasons why gardens and temples are widely planted.
? In the Book of Songs, cypress, like pine, is not a specific name, but a general term for some plants in the family Cupressaceae. Generally refers to Sabina vulgaris, Platycladus orientalis and Cupressus orientalis. Among the old and famous cypress trees, the above three kinds are also the main ones. In The Book of Songs, there is no shortage of success like pines and cypresses (Xiaoya Nature Conservation), the emperor saves his mountain, pulls out his fangs, and replaces it with pines and cypresses (elegance and emperor Yi), and the white boat is in flood season, and its flow is also in flood season (Bai Xizhou).
Platycladus orientalis and Cupressus orientalis are two species of two different genera. In the Book of Songs, the words "pine is loose, cypress is new wealth" (The Palace of the Great) and "harmony with daughter Luo, the Great Garden" should mainly refer to these two kinds.
Some places of Platycladus orientalis are called phellodendron, cedar, Platycladus orientalis and so on. It is a big tree more than 20 meters high, DBH 1 meter. The young tree crown is oval and spire-shaped, and the old tree crown is wide and round; Branchlets with scaly leaves are flat and arranged in a plane, and the leaves are scaly; Cones are almost ovoid. Wood is light yellow brown, rich in resin, fine in material, oblique in texture, strong in corrosion resistance, solid and durable. Seeds and twigs with scaly leaves are used as medicine.
? Platycladus orientalis and its varieties, such as golden cypress, golden cypress, thousand-headed cypress and narrow-crowned Platycladus orientalis, are widely used in gardens, courtyards and roadsides. There is a large area of pure Platycladus orientalis in the mountainous areas around Jinan and Yimeng mountains in Shandong Province. There are more than 80,000 ancient cypresses in the Huangdi Mausoleum in Qiao Shan, huangling county, Shaanxi Province, which is the largest ancient Berlin in the world. The Yellow Emperor planted cypress in the courtyard of Xuanyuan Temple as Platycladus orientalis, which is known as "the father of cypress in the world". Although it has experienced more than 5000 years of wind and frost, it is dry, strong and beautiful, with lush foliage. The crown of the tree is like a huge green umbrella, protecting Chinese people from generation to generation.
? Some places of cypress are called cypress, phellodendron, cypress and so on. Mainly produced in limestone mountainous areas in wet and warm areas such as Zhejiang, Fujian, Jiangxi and Hunan, and cultivated in the north of the Yangtze River. Compared with Sabina vulgaris and Platycladus orientalis, Cupressus orientalis is a precious timber tree species, which is mainly used for high-grade furniture, high-grade decoration of offices and houses, and processing of wooden handicrafts. Wild cypress is listed as an endangered second-class national key protected wild plant.
? Platycladus orientalis and Cupressus orientalis are very similar, but the difference is that the scaly branchlets of Platycladus orientalis spread straight or obliquely, arranged in a plane, and the two sides are flat and isomorphic; Seed scales 4 pairs, thick, but not peltate, with sharp scales on the back; The cones matured that year. The developed seed scales have two seeds each. Branchlets of cypress scales are not arranged on a plane, or rarely arranged on a plane; Seed scales 4-8 pairs, peltate; The cones ripen in the second year. The developed seed scales each have more than 5 seeds.
Sabina vulgaris is also called juniper and juniper. In the Book of Songs and Feng Wei's bamboo pole, "the water is green and Baba relaxes the boat" talks about this point. Sabina vulgaris leaves have two shapes, namely spiny leaves and scaly leaves; Thorn leaves are born on small trees, old trees are all scales, and strong trees have both thorn leaves and scales; The scales of annual branchlets are trifoliate, straight and dense, nearly lanceolate; Spiny leaves alternate in whorls and loose. Cones are nearly spherical and mature in two years.
? Sabina vulgaris can be easily distinguished from Platycladus orientalis and Cupressus orientalis. The cones of Sabina vulgaris are all fleshy, spherical or ovoid except tree-shaped and leaf-shaped, which are not open at maturity, or the top is only slightly open, and the seeds are wingless. Leaf right is thorn leaf or scale leaf, or there are both thorn leaf and scale leaf in the same tree. The seed scales of Platycladus orientalis and Cupressus orientalis cones are woody or nearly leathery, open at maturity, and the seeds are usually winged and sparsely wingless.
Cypress trees are lush all year round, with a tall and straight image and solemnity, which has been enduring for thousands of years. Become a symbol of temples and even prosperous rivers and mountains. As the ancient capital of the Six Dynasties, there are old and vigorous cypresses in many royal temples, gardens, imperial tombs and famous temples. There are about 5,000 trees over 500 years old, accounting for the vast majority of the first-class ancient trees in Beijing, most of which are juniper. The most shocking thing is the cypress group in Tiantan Park. Among them, "Nine Dragons" and "Qiu Shu Ke Tong" are simple and moist, and there are longitudinal gullies between the trunks, which divide the tree into several strands and twist upward, just like nine dragons winding up. This tree is 18 meters high and 3.8 meters long. It has been planted for more than 580 years since the 18th year of Yongle in Ming Dynasty. There are also the Cooper Group in Menglin and Mengfu, and the Confucius Temple in Kongfu. They are tall, strong, arrogant and have different postures. When you see them, you seem to see Confucius and Mencius' disciples, such as Lin and Confucianism. Walking in the shade of the forest of Confucius and Mencius is like walking into the ancient culture and history of China. ...
? There are Sabina vulgaris, Sabina vulgaris, Sabina vulgaris, Sabina vulgaris, Sabina vulgaris, Sabina vulgaris, Sabina vulgaris, Sabina vulgaris and other varieties in Sabina vulgaris. Widely planted in gardens, roadsides, high or low, tall and straight into the clouds, or dragons and dogs, it is actually a good wood for greening.