1. Taro is not a potato. With different properties, taro is a perennial herb of Araceae, which is usually cultivated as an annual crop. Potatoes belong to panicum miliaceum of Solanaceae.

2. Different places of origin. Taro originated in tropical areas such as China, India and Malay Peninsula, and has been cultivated in the north and south of China for a long time. Potatoes are native to the Andes in South America, and the main producing countries are China, Russian, Indian, Ukrainian and American, among which China is the country with the largest total potato output in the world.

3. The appearance is different. The tubers of taro are usually oval, and most of them are small tubers. The skin color is dark brown. Potatoes are generally oblate or spherical, and the skin colors are white, yellow, pink, red, purple and black.

4. Different uses, taro can be eaten as a dish, as a grain substitute or made into starch. Its petiole can also be peeled for cooking or dried for storage, and the whole plant can also be used as pig feed. Potato is a kind of food crop second only to rice, corn and wheat, and it is a crop that can be used as both grain, vegetable, feed and industrial raw materials.