What crops have been found in America?

There are nearly 30 kinds of American crops introduced to China, including corn, sweet potato, potato, cassava, pumpkin, peanut, sunflower, pepper, tomato, kidney bean, Lima bean, western apple, pineapple, annona, guava, avocado, cashew nut, cocoa, American ginseng, papaya, upland cotton and tobacco. In particular, the introduction of high-yield crops such as sweet potato, potato, corn and pumpkin directly stimulated the population development in China during the Ming and Qing Dynasties.