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Putuo hornbeam has 1 extant plant. It is a deciduous tree of the birch family, an endangered species, a national first-class protected plant, and an endemic species in China. In the 50s of the 20th century, there were still a few trees in Putuo Mountain, and they were destroyed due to reclamation and other reasons.
There are only 2 leguminous deciduous trees, endangered species, and national second-class protected plants. Honey locust fluffy is named because the pod is densely covered with yellow-green fluff, and the flowers are heterogeneous and the fruit is very rare. According to the literature, honey locust can be used as rootstock for grafting and propagation, but the technical requirements are very high and it is not easy to master.
There are only 3 deciduous trees of the Sycamore family, an endangered species, and a national second-class protected plant, which is endemic to China. The wood grain is straight, the material is flexible and easy to process, and it does not crack, which is the best material for making furniture, construction, and plywood. The flowers are first and then the leaves, and the flower color is bright and beautiful.
It has a high ornamental value and is a good product for landscaping and street trees.
There are only 3 remaining Pinaceae evergreen trees, endangered species, national first-class protected plants, and endemic species in China. Baishanzu fir is a unique ancient relict plant in China, and it is also the only remaining fir plant in the southeast coast of China. In 1987, the International Commission for the Conservation of Species declared Fir as one of the 12 most seriously threatened species in the world.
There are only 4 remaining deciduous trees of the Acer family, an endangered species, a national second-class protected plant, and an endemic species in China. It is closely related to Acer japonica produced in Hokkaido, Japan, and is an ancient remnant species with important scientific value.
There are only 5 deciduous trees of the birch family, an endangered species, a national first-class protected plant, and an endemic species in China. Because the habitat is owned by the local rural collective, the habitat is frequently disturbed by humans and is in danger.
There are only 6 remaining magnolia evergreen trees, rare species, and national first-class protected plants. Although the flowering and fruiting are normal, there are few mature seeds per fruit, and there are no seedlings around the native mother tree, and the natural regeneration ability is very low.
There are only 6 evergreen trees in the linden family, which is an endangered species and a national second-class protected plant. It is endemic to southwest China and one of the main tree species of the oligogene, which is of great value in the study of flora geography and the application of breeding precious tree species.
There are only 10 semi-evergreen trees of the Euonymus family, which is an endangered species and a national first-class protected plant. This is the only one of its kind in our country. The knee handle found in the southwestern part of Guangxi is the northernmost species of this genus.
It has important scientific value for the study of seed flora geography and tropical relatives in China.
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Rare plants include: goldenrod tea, silver fir, dove tree, metasequoia, Wangtian tree.
1. Jinhua tea
Golden flower tea is one of the eight national first-class protected plants, with high ornamental, scientific research and development and utilization value, known as the "giant panda of the plant world" and "the queen of the tea family", and has a good reputation in the world. Because it is an ancient plant, the fruiting rate is very low, and it is rare in the world, so it is also called the "giant panda" of the plant world, and is listed as a rare plant under first-class key protection by the state.
2. Silver fir
Silver fir is an ancient relict plant. Two million years ago, the silver fir was widely distributed in Eurasia, and since it was attacked by Quaternary glaciers and wiped out, people have only explored it with the help of plant fossils.
Silver fir is a pine plant, the trunk is generally about 20 meters high, and the diameter at breast height is more than 40 centimeters. The beautiful branches are long and short, and the young leaves have eyelashes on the edges, and the surprising thing is that on the back of the green leaves, there are two pink-white bands of pores, and the dew-filled leaves shine silver in the sun, hence the name of the silver fir.
3. Dove tree
The dove flower, also known as the "pigeon flower", is known as the "Chinese pigeon tree". In the spring and early summer, thousands of "pigeon flowers" compete to bloom in the dove forest, and converge into a large plant landscape of Mount Emei, which is called "dove flying pigeon". It is a relict plant left 10 million years ago, known as "plant living fossil", which is a rare plant in our country and a special product of Mount Emei.
4. Metasequoia
Metasequoia is an ancient plant, and its ancestors were born near the Arctic Circle more than 100 million years ago during the Upper Cretaceous period of the Mesozoic Era. While metasequoia around the world was wiped out by glaciers, a handful of metasequoia in China survived the catastrophe and became a treasure for the ages.
5. Tree of Heaven
Wangtian tree is a first-class protected plant in China. It is generally more than 60 meters high, with a diameter at breast height of about 100 centimeters, and the thickest one can reach 300 centimeters. The tree grows quickly, and the material is excellent, the material is hard, the corrosion resistance is strong, the texture is beautiful, it is a high-quality wood for the manufacture of various high-end furniture and used in shipbuilding, bridges, construction, etc.
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1. Wangtian tree: It can grow up to 60 meters and has strong corrosion resistance. 2. Centenarian orchid:
It is the only rare plant in the world that never loses its leaves. 3. Dove tree: The flower is shaped like a pigeon with wings spread.
4. Jinhua tea: the distribution range is narrow and the quantity is scarce. 5. Alder:
It is the only woody fern that has been discovered.
1. Tree of Heaven
Wangtian tree, also known as Qingtian tree, is a national first-class key protected plant, can grow up to 60 meters, its bark is gray or tan, hard and durable, and has strong corrosion resistance, is an important raw material for making high-end furniture.
2. Centenarian orchid:
Centenarian orchid is the only rare plant in the world that never loses its leaves, and its lifespan can reach more than 100 years, its trunk is short and stout, it is inverted cone, and the height of the plant generally does not exceed 50 cm.
3. Dove tree
It has the title of "plant living fossil", belongs to the national first-class key protected plant, and is unique to China, its flower shape resembles a pigeon flying with wings, so it is also called "Chinese pigeon tree", with high ornamental value.
4. Golden Flower Tea
Golden flower tea is born alone in the leaf axils, and the flowers bloom in different postures, with cup-shaped, pot-shaped or bowl-shaped, and the distribution range is extremely narrow, and the number is scarce, so it is known as the "giant panda of the plant world", and likes to grow in a warm and humid environment.
5. Alder:
Alder is the only woody fern that has been discovered, belonging to the national first-class protection of endangered plants, its stem can grow up to 6 meters or higher, the leaves are spiraled and the stem top, can also be used as a garden ornamental tree, the ornamental value is extremely high.
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The miraculous king of the lotus Wang Lian, which grows in the Amazon River basin of South America, is the largest lotus in the world, with a diameter of more than 2m and a maximum of 4m, round, the leaf edge is curled upward, floating on the water, and can carry children weighing 2 or 30 kilograms without sinking.
Ancient living fossil Metasequoia, in 1946, a metasequoia tree that had long been extinct on the earth was found in Wanxian County, Sichuan, China, which was called an "ancient living fossil".
The crown of ferns, orange potato, alder, fern is an ancient primitive plant, today's ferns are mostly herbaceous, alder (also known as tree fern) is a very limited number of woody ferns left after the extinction of the dinosaurs, which is extremely precious.
Bizarre long-lived leaves Centenarian orchid, a dwarf stump-like plant that grows in the desert region of southwest Africa, the whole plant has only a pair of leaves, and it does not wither for a hundred years, called centenarian orchid.
The heaviest coconut Sea coconut, the sea coconut grows only on the Seychelles Islands, the fruit can weigh up to 25 kilograms, is the heaviest nut in the world, although the sea coconut fruit can be carried away by the sea, but it cannot settle in other places. The Rounder.
The treasure of rare camellia Jinhua tea, in 1960, found in Nanning, Guangxi, China, a rare treasure of golden flower tea, the flower color is delicate, the distribution area is small, and the quantity is very small.
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There are the following:
Lotus leaf fern, primitive Guanyin lotus, folio fern, light leaf fern, alder, pen holder tree, jade dragon fern, narrow-leaved bottle grass, broad-leaved water leek, Chinese water leek, staghorn fern, fan fern, Chinese fern, Hainan coarse tree, grate three-pointed fir, red cypress, Minjiang cypress, giant cypress, Fujian cypress, Korean cliff, fork-leaf cycad, Panzhihua cycad, grate cycad, Taiwan cycad, ginkgo, Baishanzu fir, Qinling fir, Fanjingshan fir and so on.
Causes of rare plants in our country
First of all, the growing environment is extremely demanding. From the growth environment of the above 8 rare plants, it can be analyzed that the reason why these plants are rare is not only to have the light, temperature, humidity, air and soil elements of general plant growth, but also the conditions for the growth of these rare plants themselves are very high, that is, not all regions can grow or reproduce at will.
For example, Taiwanese cedar grows in mountain forests at an altitude of about 1,500 to 2,500 meters, and silver fir is suitable for settling down at an altitude of 940-1,870 meters. It can be seen that at such a high altitude, not ordinary plants can grow and survive, and it is even more difficult to reproduce.
Second, there is a lack of awareness of protection. In order to survive or seek personal gain, some very small number of people ignore the rarity of these plants, ignore the long-term sustainable development, and only care about the immediate economic interests, indiscriminately cut down or over-excavate, resulting in the rarer plants becoming even rarer. For example, the destruction of primary forest resources can not conserve water sources, resulting in a decrease in river flow, an increase in drought and flood damage, and an aggravation of soil erosion.
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