First, the types are different.
1, pine and cypress trees refer to two evergreen tree species.
2. Pines (scientific name: pines): Pinaceae, Pinaceae. There are more than 80 kinds of pine trees in the world, which are mainly divided into Pinus massoniana, Pinus tabulaeformis, Pinus bungeana, Pinus tabulaeformis, Pinus densiflora, Pinus thunbergii, Pinus sylvestris var. mongolica and Cedar.
3. Cypress and Platycladus orientalis are evergreen trees of Platycladus orientalis. Cypress is the general name of Cupressaceae plants, including Platycladus orientalis, Sabina vulgaris, Platycladus orientalis, Cupressus orientalis and other genera.
Second, the morphological characteristics are different.
1, the most obvious feature of pine trees is that the leaves are needle-shaped, usually 2, 3 or 5 needles in a bunch. For example, the leaves of Pinus tabulaeformis, Pinus massoniana and Pinus taiwanensis are in bundles of 2 needles, the leaves of Pinus bungeana are in bundles of 3 needles, and the leaves of Pinus koraiensis, Pinus armandii and Pinus pentaphylla are in bundles of 5 needles. Pinus species are mostly tall and straight trees with good materials and many columns.
2. The crown of young cypress is conical or oval, but it is wide and round in old age; Bark is dark gray-brown, longitudinally split and peeled into thin strips; Branchlets with scaly leaves are thin and green, spreading straight or obliquely upward, arranged in a plane, with green on both sides. The biennial branches are green-brown, slightly flat, and gradually become reddish-brown and cylindrical; Buds are small and inconspicuous, the same color as branchlets.
Third, the distribution is different.
1. Among the pine trees native to China, Pinus densiflora. Pinus sylvestris var. mongolica, Pinus yunnanensis and Pinus elliottii are the most hardy and have the lowest requirements for heat. Korean pine doesn't require much heat either. Pinus densiflora, Pinus tabulaeformis, Pinus bungeana, Pinus armandii, Pinus taiwanensis, Pinus taiwanensis and Pinus Bashan are tree species in warm temperate zone and subtropical high altitude area, which need moderate heat. Pinus massoniana, Pinus yunnanensis, Qiao Song and Pinus Simao. Langbianensis is located further south and needs more heat.
2. Cypress is mainly distributed in the northern and southern hemispheres. There are 8 genera and 29 species of China, which are widely distributed in China, starting from Inner Mongolia and Jilin in the north and reaching Guangdong and Guangxi in the south. Tibet has the largest cypress tree in China, which is called the most cypress tree. It grows at an altitude of 100 m to 3440 m, mostly on roadsides and hillsides.
Extended data:
The related history, culture and value of pine and cypress;
1, pine trees and bamboo plums are called "three cold friends in old age". In literary and artistic works, pine and cypress are often used to symbolize unyielding heroism.
2. Pine and cypress wood is moderate in hardness, meticulous, fragrant in smell and strong in corrosion resistance, and is mostly used in construction, furniture, joinery, etc. Seeds, roots, leaves and bark can be used as medicine; Oil is extracted from seeds and used to make soap, food or medicine.
3. In addition to economic use, pine trees have important ornamental value because of their majestic posture and long life. It is an important part of many scenic spots in China. For example, Qian Shan in Liaoning, Mount Tai in Shandong and Lushan in Jiangxi are all famous for their pine scenery.
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