Sweet potato is sweet potato, namely sweet potato, sweet potato (scientific name: Ipomoea batatas), also known as sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato and pillow potato. Common perennial dicotyledonous plants, herbs, with slender vines and creeping stems. Root tuber, which produces lactic acid by anaerobic respiration, has white or red skin color, and the meat is mostly yellow-white, but it also has purple. Besides being used for food, it can also be used to make sugar, wine and alcohol.

Taro is a perennial tuber plant, which is often cultivated as an annual crop. Leaf blade peltate, petiole long and fat, green or purplish red; A short stem is formed at the base of the plant, which gradually accumulates nutrients and hypertrophy into fleshy bulbs, which are called "taro" or "mother taro", spherical, oval, oval or block. The mother taro has a brain bud in each node, but the axillary bud in the middle and lower nodes has the strongest activity, and it tillers for the first time, forming a small bulb called "son taro", and then "sun taro" occurs from the son taro, which can form great-grandson or great-grandson taro under suitable conditions.