"Leaves used as tea can not only replenish water to quench thirst, but also prevent and treat many diseases." Zhang Li, former deputy chief physician of Chinese Medicine Department of Beijing Institute of Occupational Disease Prevention and Control, said that it should be reminded that when collecting leaves, fresh and unpolluted leaves must be collected to make tea, so as not to cause poisoning. Persimmon leaves can lower blood pressure, clear heat and stop bleeding. Regular drinking can enhance heart function and increase coronary blood flow. Hawthorn leaves have the functions of lowering blood cholesterol, inhibiting bacteria and preventing cholesterol from depositing in internal organs, which is beneficial to lowering blood pressure and softening blood vessels. Patients with coronary atherosclerosis can often drink this tea. Chinese parasol leaves have the effects of clearing liver and lowering blood pressure, and also have the effect of slowing down heart rate. Regular drinking is beneficial to patients with hypertension. Loquat leaves have the functions of clearing lung and stomach, lowering qi and resolving phlegm, which is beneficial to those with lung heat and phlegm. Banyan leaves have the functions of promoting blood circulation, removing blood stasis, relieving swelling and pain, clearing away heat and removing dampness. It has a certain auxiliary treatment effect on traumatic injury and joint pain. Lycium barbarum leaves have the functions of clearing away heat, quenching thirst, tonifying deficiency and replenishing essence. It can tonify bones and muscles, eliminate fatigue, reduce fire and clear brain. It can be used for adjuvant treatment of diabetic patients with symptoms such as weakness, hyperhidrosis, thirst and upset, dry eyes, and decreased vision. Mulberry leaves have the functions of clearing away heat, promoting fluid production, cooling blood and improving eyesight, and can be used for the adjuvant treatment of diabetes, preventing and treating the vision decline of diabetic patients due to various complications. Pine leaves have the functions of warming meridians, promoting blood circulation, expelling wind and removing dampness, and can be used to treat rheumatic pain, traumatic injury and other diseases. /Su Cai/Zhi Wulei/Leaves/Walking Trees There is an interesting and strange plant in South America called Selaginella. Whenever the climate is dry and there is a serious shortage of water, it will pull its roots out of the soil by itself, and its waist will change, making the whole body curl up. Light and round, it can roll on the ground with the wind as long as there is a little wind. Once the ball rolls to a place where there is plenty of water, it will quickly open and restore its "true colors." Dig into the soil again and settle down temporarily. If, once again, it feels that the water source is insufficient and life is not satisfactory, it will continue to dial up and follow, and then live a tourist life. This is how Selaginella travels. Go down if there is water, and go away if there is no water. So it is no wonder that some people call it a "tourist" in the plant kingdom. A wonderful rotating tree was found in Sichuan. Recently, a strange tree that can rotate 360 degrees was found in the scenic spot of Shihaidong Township, Xingwen County, Sichuan Province. This is an evergreen tree that grows on the cliff of the scenic spot. The tree was originally born in a crack at the top of the rock. Over time, one by one hangs down the stone wall, and after about 20 meters, it is completely hung on the stone wall. At the end of the root, it grows branches and turns the root into a stem. Lush branches and leaves develop freely here and gradually grow into a green round mass. Around the trees, there is nothing but gray rocks, so it is colorful and graceful, and looks like a green lantern hanging high from a distance. The steep rock wall is more than 100 meters high, and the four monsoon winds keep blowing. This group of green leaves also keeps turning with the wind. The strong wind turns fast and the small wind turns slowly. If there is a strong wind, you can turn 360 degrees and then turn back. Man-eating tree In Madagascar, Africa, there is a man-eating tree. It is shaped like a huge pineapple, about 10 feet high, with a cylindrical trunk and snake-shaped branches, so the locals call it "snake tree". This kind of tree is extremely sensitive. When a bird lands on its branch, it will soon be caught and disappear. Charles Shyer, an American botanist, once personally felt the power of the snake tree in 1937: when he accidentally touched a branch with one hand. Hands were quickly entangled. As a result, it took a lot of effort to break free, but the skin on the back of the hand was torn off a lot of meat. In winter, bachelor trees often see leaves fall off, which is a clever design of nature. Because winter is cold and there is little sunshine, the function of leaves is photosynthesis. In this season, its function is reduced, and when it is cold and dry, the water absorbed by the tree itself in the ground is insufficient. If leaves consume nutrients such as water, it is difficult to maintain vitality, so defoliation is a measure to reduce the burden. In the coming year, when there is enough sunshine and rain, new leaves will grow ... but nature is indeed full of miracles. There is a tree, which is not included in the above natural laws at all. No matter which season of the year, it presents a bare image. Don't think it is a dead tree, in fact, it is full of vitality. This kind of tree is called "bachelor tree" and is produced in desert areas of Africa. It turns out that the desert climate in Africa is hot and dry, and it doesn't rain for a long time. The bachelor tree has adapted to this natural environment. Without leaves, reduce transpiration and save water, and replace the function of leaves with green stems, and leaves degenerate in this case. This kind of bachelor tree also has the function of self-protection, allowing some leaf-eating animals to see bare branches instead of patronizing them, reducing the chance of being eaten by animals. In fact, the shoots of this kind of bachelor tree normally replace the leaves, carry out photosynthesis, and strengthen themselves by absorbing the nutrition of the sun. Those seemingly withered branches are actually full of vitality.