Its fruit is like a millstone when it was eaten when it was eaten 20 years ago, and now it's rare to grow it in large quantities.

The most common in rural areas are all kinds of wild plants, which are found in front and back of houses, on the slopes of rivers and on roadside wastelands. Some weeds are so tenacious that they can't be eradicated. Some weeds used to be common, but now they are becoming more and more rare. This kind of weed we are going to talk about today was planted by many farmers 20 or 30 years ago, because it is full of treasures and has a wide range of uses. In the past, farmers used to grow it to sell money and increase household income, but now with the improvement of living standards, this weed is used less, so few people grow it, which makes it more and more rare now.

The name of this weed is "green hemp". Its fruit is like a grinding plate. when it is tender, it can be eaten as fruit. It tastes sweet and is often eaten when I was a child. When its fruit grows old, the "grinding plate" will turn black and the seeds inside will mature. Its seeds are smaller than sesame seeds and can also be used to extract oil, but its oil can not be used for consumption, but is mainly used for industrial oils, lubricants, soaps and paints. In addition to extracting oil, the seeds of Qingma have another important use, that is, to be used in medicine, which is also the main use of Qingma today.

Qingma seed is considered to have the effect of clearing away heat and dampness, detoxifying and dredging orifices in traditional Chinese medicine, and is often used to treat otitis media and tonsillitis. In Fujian Medicine Chronicles, it is recorded that Fujian people use it to treat otitis media, using fresh whole herbs of green hemp, including green hemp seeds, stewed with pig ears, or boiled porridge with glutinous rice and hairy clams. All have a certain dietotherapy effect. However, not many people know its use, now occasionally see green hemp on the roadside, have been cut down as weeds by peasant friends, and no one cares about its medicinal value.

In fact, 20 years ago, Qingma was a very popular cash crop, which was planted in large quantities in rural areas. In addition to collecting green hemp seeds and selling money, farmers will also peel off its stem bark to make sacks, twine, and weave hemp shoes, which are very strong and wear-resistant. I remember when I was a child, almost every household in the village wore linen shoes when they worked in the fields, especially in summer, which was the most practical, breathable and convenient. At that time, there were many people who would make their own linen shoes, but now they can hardly be seen.

The stem bark of green hemp is relatively rough, although it is good to make sacks and sacks, but now there are better substitutes, so it has been gradually eliminated. Farmers, have you ever planted green hemp before?