Dendrobium nobile in Chishui has nourishing yin and clearing away heat, promoting fluid production and quenching thirst. It can be used for treating body fluid injury caused by fever, thirst and dry tongue, and asthenic heat after illness. Compendium of Materia Medica claims that it has the effects of "strengthening yin and nourishing essence, thickening the stomach and intestines, supplementing the lack of endospores and prolonging life". Historically, doctors called "Dendrobium huoshanense" dried without soaking, chewed without residue stains, with strong taste and no ointment, nourishing the stomach and benefiting the fluid, but without concern about cooling and disturbing the spleen, which is really a wonderful product. Instead of tea, it produces saliva and moistens the throat, and its voice remains unchanged; Extract it, resist bacteria and cancer, and delay aging. Therefore, the efficacy is peculiar, and the market is scarce. It is known as the "golden grass, soft gold" and is known as the first of the nine fairy grasses in China. Dendrobium huoshanense, which is produced in Huoshan county, Anhui province, is excellent in efficacy and function because of its full colloid. However, because its output is scarce and difficult to grow, only relatively large brands such as Dendrobium officinale in Fulinmen can buy it on the market.