Wild truffle generally refers to the black truffle, mainly distributed in the Alps and a few areas of the Himalayas, as well as Panzhihua City, Sichuan Province, Yanbian County, around the west of the Panxi region, occupying 60% of China's total black truffle production.

The growing environment of wild truffle: Truffle is very picky about the growing environment, as long as the sunlight, water or soil pH value is slightly changed, it can not grow, it is the only delicacy in the world that can not be planted in a neat and orderly manner. It's still not clear why truffles grow under one tree but not another tree that looks exactly the same next to it.

Unlike mushrooms and other fungi, truffle spores are spread not by the wind, but by the animals that eat them. Truffles grow mainly under pine, oak, hazel, beech and orange trees, this is because truffles can not photosynthesize, can not survive on their own, and must rely on the **** living relationship with certain tree roots to obtain nutrients.

China's black truffle origin is mainly concentrated in Yunnan Province and Sichuan Province and its surrounding areas, including the production of larger production areas, including Sichuan Province, Huidong Huili, GaoLiGongShan, Yunnan YongRenXian, PanZhiHua in Sichuan Province, and other places (at present PanZhiHua is known as China's "truffle" of the hometown).

China's black truffle varieties are complex, according to the "Chinese truffle research profile", China's truffle varieties up to dozens of species, but the actual high food value of only about five species. Among them, Huidong County in Liangshan Prefecture has unique wild truffle natural growth conditions and rich host plant resources, is China's earliest discovery of truffles, but also China's largest truffle production area, the annual output of truffles 80-100 tons, there are more than ten varieties of truffles, especially the "black" as the honor.

Huedong truffle to "Huidong truffle" name to obtain the national protection of geographical indications product certification. It is understood that Huidong County issued a policy to regulate the truffle digging behavior, truffle maturity and orderly harvest; at the same time to cultivate leading enterprises, the establishment of scientific research laboratories and industrial bases, to promote the standardization of the truffle industry scientific development.