2. Dendrobium huoshanense is the fresh or dried stem of Dendrobium huoshanense, an orchid plant. Its distribution area is narrow, limited to Huoshan, Jinzhai, Yuexi, Shucheng, Yingshan in Hubei, Nanzhao in western Henan and other places in Dabie Mountains. Its growth conditions are harsh, most of them grow in the crevices of foggy cliffs, and its wild resources are on the verge of exhaustion, which is expensive. Curved shape, bluish yellow color, sweet chewing taste, slippery mouth and sticky teeth. Dendrobium huoshanense is rich in oil and has the strongest effect of nourishing yin, and its efficacy is obviously better than that of other species of Dendrobium. It is slightly cold in nature and sweet in taste, and has the effects of nourishing yin, replenishing essence, quenching thirst and promoting fluid production, and nourishing liver and kidney. Can be used for treating body fluid injury, thirst, fever due to yin deficiency, blurred vision, and muscle weakness. Dendrobium and Achyranthes bidentata wine consists of Dendrobium huoshanense, Achyranthes bidentata, Eucommia ulmoides, Salvia miltiorrhiza, Radix Rehmanniae, etc. It has the functions of promoting blood circulation, dredging collaterals, strengthening tendons and bones, and has obvious curative effect on lumbago due to kidney deficiency, joint disadvantage and muscle and bone pain. Appropriate amount of Dendrobium huoshanense, Lycium barbarum and Chrysanthemum are boiled for 10 minute, and 1 dose is used as tea beverage every day.