2, sweet horn, also known as tamarind, Muhan (Dai), for the acid bean plants, its mature fruit brown, sweet, similar to the taste of dry cinnamon, cats do mileage of raw materials. Sweet horn pulp is rich in calcium, phosphorus, iron and other elements, including calcium content in all fruits in the first place. In the winter and spring seasons, when the sky is high and the wind is fresh, it is easy to see a kind of local people's favorite fruit tree, the sweet horn, when you walk into the Dai villages in Xishuangbanna. It is a tall tree, rough trunk, branches and leaves sparse, hanging a string of branches, a dulu brown hook-shaped pods.