Pueraria lobata (Willd.) Ohwi, another name of Pueraria lobata, is the root tuber of Pueraria lobata (Willd.) Ohwi, a perennial vine of Leguminosae. It is named because it contains a lot of starch (the content of fresh Pueraria lobata is 19~20%). Pueraria lobata is one of the native products of Gaoming City, Guangdong Province, mainly distributed in mountainous towns such as Heshui.

Shage, commonly known as sweet potato, cold potato, sweet potato and radish, is an underground root tuber, which belongs to herbaceous vines and has a shape between kudzu and sweet potato. It is the largest in summer and autumn, cheap, refreshing and sweet. Shage is white in color, sweet and juicy in taste, and crisp and tender in meat. It can be eaten as vegetables and fruits, and can also be used to extract starch. Sage is native to tropical America, and was later introduced to China. At present, there are many cultivated areas in North China, Southwest China, South China and Taiwan Province in China.