It originated from the primeval forest of Lesser Khingan, with a high coverage of 86.2% of the primeval forest and 97.4% of the green vegetation at 47 ° N latitude. The high coverage of the forest rain and the green vegetation produce the negative oxygen ions that are unique to the primeval forest, more than 30,000/cm3,25 times the size of a city, 18 times the size of a small urban area, 12 times the size of a plain area, and eight times the size of a typical agro-forestry area. The abundant negative oxygen ion + clean air + moist air humidity + latitude factor sooner or later the temperature difference is big, guarantees the fungus and so on mountain treasures fully absorbs the air nutrition in the growth process, it is not polluted and its nutrient content is much higher than that of other species of the same kind. The key is to ensure the color of black or dark brown agaric, thickness is good, taste has toughness, ear-shaped integrity. Autumn fungus for autumn harvest, ear integrity, after the bubble bowl-shaped, fleshy q bomb, thick and full, delicious taste, nutrient-rich, can be vegetarian meat, its high nutritional value. By modern nutritionists praised as“The meat of the vegetable”. Northern goods lang autumn agaric each agaric is hand-picked, artificial selection, artificial to the root of the boutique, full of northern goods lang true feelings for each customer. The northern goods Lang Qiu fungus also obtained the green food certification and the organic food certification