Dendrocalamus latiflorus is a precious Chinese herbal medicine and a national second-class protected plant. Perennial herb with tufted stems, cylindrical, 15-30cm high and 2-4mm thick. In the folk, the iron maple bucket is known as the "life-saving fairy grass" and the "giant panda" in medicine. In some coastal cities such as China, Shanghai and Zhejiang, especially Hong Kong, Macao and Taiwan and Southeast Asia, it has been recognized as a high-end health care product.

In the folk, the effect of fresh iron maple bucket is mainly used for children's fever, red eyes, swelling and pain, toothache caused by deficiency fire, especially for children's fever. It has been a folk medicine since ancient times. The dried Dendrobium candidum (the processed product of its stem is also called Tiefengdou) has been called "the sacred product of nourishing yin" since ancient times. Because of its unique and magical effect, Tiefengdou is in short supply in domestic and foreign markets. For a long time, people have used this medicinal material to collect wild resources by digging, and the temptation of high profits has made wild Dendrobium candidum a rare and endangered plant in the world, so it has been valued and protected by the state.