Tremella, also known as cliff flower, flower moss and rock ear, is born between rocks and looks like moss. It is flat, black at the bottom and has small protrusions. It has a short handle in the center and is attached to rocks. The top is quite smooth and gray, which looks like tremella. Bulk, or moss blue, collected and dried, can be used for food and medicine.

Li Shizhen's Compendium of Materia Medica notes: "There are many Lushan Mountains, which are shaped like earth ears. Monks in the mountains are far away from food, and the wind and sand are washed away. They are better than fungus and are good products. "

Tremella is sweet and non-toxic, and has the functions of clearing away heat and toxic materials, stopping bleeding and diuresis. Taking 30 grams of Tremella aurantialba decoction can cure epistaxis, hematemesis and hemoptysis.