Uncle Yang's family of three is farming in the countryside for a living, he is over 60 years old, his son has just gone to college, and his wife is not in good health. 
Over the years, the use of chemical fertilizers and pesticides has increased, and the weeds have become more and more vigorous. In the past few years, he could barely cope, but as he got older, Uncle Yang's physical strength and energy deteriorated. This year, the weeds in the field are denser and more difficult to clean up than in previous years, and Uncle Yang, an old man, is really unable to do it. 
At noon that day, the sun was making people sweat, and Uncle Yang was waving a sickle to chop the grass, while complaining in his heart about this annoying weed. At this moment, his sickle accidentally split a peculiar weed, which was like a small bamboo pole, and Uncle Yang suddenly became curious. Uncle Yang carefully looked at this wild grass that resembled a small bamboo pole and felt extremely peculiar. It grows in sections, with no leaves and a rough epidermis, which can be divided into several pieces with a gentle pull of the hand, and then joined together to continue growing. 
Uncle Yang was curious about this never-before-seen plant, so he hurriedly picked up a few and brought them home, intending to ask the old man in the village what kind of weeds they weeded. Early the next morning, Uncle Yang picked a few of the freshest and strongest plants and took them to Lao Zhang's house. Lao Zhang is seventy years old and knows everything in the local world. He showed a surprised expression when he saw the plants brought by Uncle Yang, it turned out that this was the legendary ** grass, a very precious Chinese medicinal material. Lao Zhang said that **grass grows in a humid environment with polymetallic elements, so it gets the name of "**". 
The **grass of 1 catty on the market is as high as tens of thousands of yuan, and I think that when Lao Zhang was young, he had seen a patch of **grass forest, but he didn't think that now there are only a few scattered trees left in the village. I heard that ** grass is so precious, Uncle Yang said that it is no wonder that he usually treats it as a weed. It turns out that this herb has been processed into medicine as early as ancient times, and has the effect of clearing heat and dampness, invigorating blood and relieving pain, and can be used for a variety of quite common disease symptoms. 
However, many of today's young generation do not know ** grass, and even remove it as a weed. The precious wild resources in the village have been greatly depleted, and some old medicinal materials have also become extinct. Lao Zhang solemnly warned Uncle Yang that he must let the children know the preciousness of ** grass and stop messing around at will. In fact, many wild herbs contain unique medicinal ingredients, if the grass is stripped away, what will happen to the people in the village in the future?Now the market is so high, indicating that its application prospects in the field of medicine will be broader, and the protection of wild resources is urgent. 
Uncle Yang trembled when he heard this, how could the children waste precious medicinal materials like this!He immediately decided to tell all the villagers about it, and he made sure that everyone took it seriously. The next day, Uncle Yang came to his own field, but saw that his neighbor Xiao Wang was weeding there, and he had already torn off a large piece of ** grass and threw it aside. Uncle Yang shouted, "Don't pull it", and hurriedly ran over to stop Xiao Wang. 
Lao Zhang also followed out breathlessly, and told Xiao Wang about the precious value of **grass with Uncle Yang. Xiao Wang woke up like a dream, and he almost got rid of the baby as grass. He hurriedly picked up the ripped ** grass and carefully returned to the soil. Other people in the village also came to help, transplanting the ** grass from the ridges and ditches to more fertile plots for careful maintenance. 
After this incident, the villagers finally realized the great wealth that surrounds their lives. According to Lao Zhang's suggestion, they decided to raise funds to carry out artificial cultivation of ** grass in a suitable environment. On the one hand, the protection of wild resources that are about to disappear can also obtain considerable economic benefits.