Wild fruit covered in thorns and clinging to your clothes is annoying, but little do people know it is a good medicine for improving eyesight

In rural areas, weeds can be seen everywhere. Whether on country roads or behind the house, all kinds of weeds can always be found. Some farmers even cut some weeds to take home to feed pigs, cattle and the like, and some farmers also dry the weeds to use for making fires. Today I will introduce one kind of rural weed.
It is puncture vine (Tribulus terrestris), but this weed is not as useful as other weeds. In rural areas, farmers always hate puncture vine, because its fruit is covered in thorns all over, and if you accidentally touch it, it will stick to your clothes. When we were little, puncture vine was also a kind of toy for us. We would go looking for puncture vine to play with, and at that time, a child who had puncture vine in hand would not be bullied by others.
At that time, this puncture vine was very common behind houses or on roads, and some farmers would think that the wild fruits produced by puncture vine were all thorns, so they would cut them off and throw them away to avoid getting them stuck on their bodies. In July and August, the wild fruits of puncture vine grow out, and at that time, when walking on rural roads, you had to be careful not to get stuck by puncture vine.
Although farmers very much dislike puncture vine, and in fact even I, who grew up in the countryside, have no good feelings toward puncture vine and just think it pricks people, puncture vine is actually a plant with great medicinal value. The thorny wild fruit produced by puncture vine is a rare traditional Chinese medicine, and it has very good effects in treating some illnesses. At the same time, it also has health benefits for people's blood vessels and nervous system. Most importantly, puncture vine has the effect of improving eyesight. If a person has an eye disease, using puncture vine can relieve the symptoms, but it should still be used under a doctor's guidance.
It is precisely because of this that puncture vine has become a rare and valuable traditional Chinese medicinal material. Now farmers no longer dislike puncture vine so much, because puncture vine has brought them considerable economic value. After being dried in the sun, puncture vine can be used as medicine, and the price per jin is between 15-30 yuan. The purchase price also varies depending on the variety. Wild puncture vine has higher value than cultivated puncture vine, and picking puncture vine has also become a side job for farmers to increase their income.
You would never have thought that puncture vine, which we hated so much when we were little, can now bring people such great value. It is this puncture vine, with effects such as improving eyesight, that is now no longer commonly seen in rural areas because of rural construction. Have you all seen puncture vine? Were you ever pricked by puncture vine when you were little?