Farmers do not dare to eat this kind of potato growing tree, but they do not know it is a rare dragon.

The owner of this mountain will always be living on it, and human beings are only one of them. The farmers at the foot of the mountain are raised by the mountain, get food on the mountain, and farming creates a more beautiful scenery. There are many plants and animals on the mountain. These plants take root wantonly and wander under the land.

There is such a kind of plant, the surface is meek and ordinary, the real appearance is hidden under the ground, the roots grow ginger, the ancients were good at discovering and using it as traditional Chinese medicine to treat diseases, and now farmers rarely recognize it, also because as early as a few years ago, because of its high value, almost all of them have been dug up by the roots, and the number is getting less and less, and now the wild ones are also very rare.

Locals often call it "Dog Yam", "Chuanshan Dragon", "Tushan Potato" and "Wild Yam". In fact, its real scientific name is "Dioscorea zingiberensis". It is a perennial twining herb.

Many branches, single leaves alternate, leaves are palm-shaped, somewhat heart-shaped, its rhizome is up to five meters long, like to find places on both sides of the hillside, here half-shady and half-sunny, the soil should be moist and fertile places, like shady and humid places, the humus layer here is relatively thick, if it is too dark or too sunny can not stay, but also particularly like winding around other trees, rush to eat their nutrition.

In addition to the root of Dioscorea zingiberensis looks like ginger, in fact, its fruit is also very characteristic. If you see it for the first time, you would think that there are "potatoes" growing on the tree.

The reason why it is called "Dog Yam" is because it has been eaten as a traditional Chinese medicine since ancient times, and it is also one of the more familiar folk prescriptions. You may have heard that Dioscorea zingiberensis can dispel wind and dehumidification, activate blood circulation and clear collaterals, and relieve cough. Such as limb numbness, falling injury, expectorant and relieving asthma, etc., add water to boil it out of the soup and take it.

In addition, it is said that "poison does not divide the family", and the toxicity of Dioscorea zingiberensis can not be underestimated, which is why it is faster and stronger than ordinary herbal medicine, but the amount of medicine must be less, otherwise it is not to cure the disease but to take poison. Also because of this, although it looks like a potato, but many farmers dare not eat it!

"Dragon", a mythical creature, has always enjoyed unparalleled human worship, and the son of Heaven is also the son of the dragon, so the dragon is of great significance to people in ancient times, so it is not difficult to see that Dioscorea zingiberensis is so popular. It is also thanks to the fact that its roots look like dragons.

Now it is almost impossible to find the real wild Dioscorea zingiberensis, so its economic value is huge, because it does not pick the environment and can survive anywhere, so Dioscorea zingiberensis is regarded as the main crop in many places, and the income is much higher than ordinary crops.

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