Production of shii-take in Yanling County has a long history.County annals . Qianlong recorded the "inoculum in logging". Basswood mushroom has thick nature, good appearance, with dense fragrant. It contains protein, fat, niacin, Ca, P, Fe and thiamine and other various nutrients and rare elements beneficial to human health. It prevents from liver cirrhosis, hypertension, coronary heart disease to often eat shii-take after medical research, and it can increase hemoglobin, strengthen gastrointestinal function and have obvious effect on restraining cancer cells.

Yanling shii-take is divided into wild shii-take, cultivated shii-take with cut-log and cultivated shii-take with wood dust. It is distinguished for wild shii-take, following basswood shii-take, and cultivated shii-take with wood dust is cheap, it is popular, too. Basswood mushroom has thick nature, good appearance, with dense fragrant. It contains 62.5 g protein per 500g, 32 g fat, 65 g niacin, 300g carbohydrate, 620mg Ca, 207mg P, 126mg Fe, 0.25mg thiamine and other nutrients and rare elements that are beneficial to the human health.

Wild Yanling Shii-take is called snake butter by the indigenous, too. There people collect in Spring, Fall and Winter. Clearing clays and sands, dry them with wild charcoal fire for food or being sold; It can be freshly used. Fresh wild shii-take is sold in Yanling market every day.

Wild Yanling Shii-take has a good taste, fresh and tender and smooth; Its taste is pure and fragrance is good. It is veritable delicious food.

Wild Yanling shii-take has a sweet flavor, is not obvious in boundary of cold-heat nature, cool naturally; It is absorbed by the liver and stomach channel. It has effects of nourishing the liver and kidney, replenishing qi and blood, tranquilization and beauty. Its medicinal value include: Reducing phlegm and regulating vital energy, benefiting the stomach and regulating the middle warmer, detoxifying, anti-tumor and growing exanthema variolosum; Its main indications are inappetence, poor health, urinary incontinence, constipation, fat body and tumors and sores and ulcers.

Identification of wild Yanling shii-take: Fresh Yanling shii-take is flat and thin. Its upper surface is smooth, and its back is white, with deep ruga. The base of mushroom is very short and small, with slight fragrance. The dried Yanling shii-take has a small size, with pure fragrance. And its surrounding is very thin, and its edges is slight curl. Visitors should note to distinguish when buying(excluding mushrooms).

It prevents from liver cirrhosis, hypertension, coronary heart disease to often eat shii-take after medical research, and it can increase hemoglobin, strengthen gastrointestinal function and have obvious effect on restraining cancer cells. It is top grade green food depending on the above features.