What Are the Different Types of Medicinal Tree?

Trees are plants with wooden trunks and branches that can survive for many years. Arbors are generally called trees, with trunks and one plant. The branches are higher from the ground and can form canopies. There are many kinds of trees.

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Although tree is a commonly used word, there is no universally accepted definition, neither the botanical definition nor the definition of daily life.

Because the tree is intended to be an artificial taxonomy, there is no difference between different trees.

The main four parts of the tree are

From the perspective of modern science, what does the tree kingdom bring to people?

The tree kingdom can improve humanity

Generally speaking, if the average temperature of the hottest month of the year is lower than 10 ° C, trees cannot be grown locally. The lower the temperature, the shorter the shrubs, so that they can only grow grass. China is in the middle

If the temperature conditions can meet the needs of tree growth, whether the trees can grow and what they look like depends on the amount of precipitation. Here are a few examples.

First, the tropical, subtropical, and temperate arid regions of the world are all deserted due to the extreme lack of water to grow trees and grasses.

Secondly, in tropical regions, there is only one rainy season (summer) in a year. If there is less rain in the rainy season, for example, in Africa, the annual rainfall is 500 to 1000 mm.

Generally speaking, wind does not affect the survival of trees, but mainly affects their appearance.

I am in the Yunnan Botanical Garden (Xishuangbanna

There has been a legend in ancient times that people used trees to treat diseases. A tree therapy has been spread in Russia. A Russian scientist through experiments revealed the wonderful performance of wooden circles (cutting a trunk and digging a hole in the middle) to treat diseases, and thus invented a "biocorrector" (similar to wooden circles) for rehabilitation. Biocorrectors made from different trees can treat people with different diseases. E.g

By tree growth type

Arbor trees are tall (usually 6 to tens of meters), with a distinctly tall trunk.

Shrubs are short (usually under 6 meters) and the trunk is short.

rattan woody plants that can entangle or cling to other things and grow upward (such as

The oldest species of trees

It is China's ginkgo tree. This tree first appeared in the Jurassic period 160 million years ago.

Tallest tree

If the World Tree World Competition is held, only Australian almond eucalyptus is eligible for the championship.

Almond eucalyptus is generally 100 meters high, one of which is 156 meters high, with its trunk straight into the sky, as high as fifty stories. Among the trees that humans have measured, it is the tallest. The birds sang on top of the tree, and under the tree it sounded like the hum of a mosquito.

The base of this tree is as long as 30 meters, the trunk is straight, and it becomes thinner upwards. Branches and leaves grow densely at the top of the tree. The leaves are weird. The general leaf is facing up to the sky, while it is facing up to the side, as if hanging from a branch, parallel to the direction of sunlight. This weird appearance is to adapt to the dry and sunny environment, reduce direct sunlight, and prevent excessive evaporation of water.

In addition, Sequoia is also very tall, about 118 meters.

The shortest tree

The average tree can grow to 20-30 meters high. In the temperate woods, a small shrub called purple golden cow and green leaves and red fruits grows. People love it and often use it as a bonsai. It grows no more than 30 centimeters, so everyone nicknamed it "Let's not grow old". In fact, "do not grow old" is 6 times higher than the shortest tree in the world. The shortest tree, called a willow, grows in the alpine tundra. Its stems are dormant on the ground, and the branches are drawn out to produce inflorescences like willows, which are only 5 cm tall. If the height of eucalyptus almond is compared with that of dwarf willow, the difference between one height and one short is 15,000 times. A short tree almost as tall as a dwarf willow, and a short arctic birch growing in the high mountains near the Arctic Circle. It is said that the mushrooms there are taller than the short arctic birch.

Why don't alpine plants grow tall? Because the temperature there is extremely low, the air is thin, the wind is strong, and the sun is direct, only those small plants can adapt to this environment.

Thickest tree

There is such an interesting legend in Europe: the ancient Arab kings and queens once led a hundred riders to the Etna mountain in the Mediterranean in Sicily. Suddenly it was raining heavily, and the hundred riders rushed to hide under a large chestnut tree. Yin just covered them from the rain. Therefore, the king named this big chestnut tree "Hundred Riding Big Chestnut Trees".

According to foreign reports in 1972, there is indeed a large chestnut tree called "Horse" on the side of Mount Etna in Sicily. The circumference of the trunk is about 55 meters. It takes more than 30 people to hold hands to surround it. it. There is a large hole in the lower part of the tree, which is used by chestnut pluckers as a dormitory or warehouse. This is indeed the thickest tree in the world.

The fruit of the chestnut tree, chestnut, is a favorite food. It is rich in starch, protein and sugar, and has high nutritional value. It is suitable for raw food, fried food, cooking, and cooking. It is not only sweet and delicious, but also It has the functions of curing spleen and liver, strengthening the body.

The largest tree

Some plants on the earth are very small, while others are very large. Like the giant cedar in California, USA, it grows tall and fat. It is the "giant" among the trees, so it is also known as the world master.

This tree is generally about 100 meters high. The tallest one is 142 meters in diameter and 12 meters in diameter. The trunk circumference is 37 meters. It takes twenty adults to hold it. It's almost as thick as it is, and it has lived for more than 3500 years. A hole was opened from the lower part of the trunk, which could be passed by car, or four horse riders passing side by side. Even after the tree has been sawed down, people need to use a long ladder to climb to the trunk. If the trunk is hollowed out, one can walk in for sixty meters and drill out of the hole in the tree branch. Its stump is big enough to be a small stage.

Although Eucalyptus almond is taller than giant fir, it is thin and tall. In terms of volume, it is not as large as giant fir, so giant fir is the largest tree in the world. There are no more plants on earth than this.

Jushan also has great economic value and is a good material for sleepers, telephone poles and buildings. The wood of giant cedar is not easy to catch fire and has the function of fire prevention.

Tree crown

As the saying goes, "It's cool under the big tree." Do you know which tree has the most number of people for a cool time? This is a kind of banyan tree in Bangladesh. Its crown can cover about 15 acres of land, as large as a half football field.

Not only does the banyan banyan tree have dense foliage, it can also take root from the branch. Some of these roots are suspended in midair and absorb water and nutrients from the air, called "air roots". Most air roots reach the ground and pierce into the soil, playing the role of absorbing nutrients and supporting branches. Upright air roots are like trunks. A banyan tree can have up to 4,000 roots. When viewed from a distance, it looks like a wood. Therefore, the locals also called this kind of banyan tree a "lone tree forest". It is said that an army of six or seven thousand people had been cold under a big banyan tree. Local people, under an old Bengal banyan tree, opened a busy market with people coming and going. There is no more canopy in this world.

Tree, wood, lightest tree

Balsa, also known as Basha wood, grows in tropical forests of the Americas, and is one of the fastest growing trees and the lightest wood in the world. This tree is evergreen and has a tall trunk. The leaves are like a sycamore, five yellow-white petals are like a hibiscus flower, and the fruits are split like cotton. South China Taiwan has long been introduced. Since 1960, it has also been extensively cultivated in Guangdong, Fujian and other places, and has grown very well.

Balsa wood weighs only 0.1 grams per cubic centimeter, which is one tenth the weight of the same volume of water. The poplar we use for matchsticks is three and a half times heavier. Although its wood texture is light, its structure is strong, so it is a valuable material for aviation, navigation and other special processes. Local residents have long used it as a raft to travel between islands. China uses it as a stopper for thermos bottles. The heaviest tree: Black Dalbergia. One cubic meter of ebony wood weighs more than 1,100 kilograms.

Slowest growing tree

It is a tree in the Kalahari Desert. It grows surprisingly slowly, growing only 30 centimeters in 100 years.

Lightest tree

It is the Barsha wood in the tropical forest of the Americas. Its wood weighs only 0.1 grams per cubic centimeter. This tree is 10 meters high and it is thick and it can be easily carried by one person.