One of the features of this trade was the exchange of a great array of domesticated plants and animals between the Old World and the New and vice versa. Some that were introduced to America included wheat, barley, apples, cattle, sheep, pigs, horses, donkeys, and many others. The Old World received from America such things as maize, potatoes, chili peppers, tomatoes, tobacco, beans, squash, cacao (chocolate), vanilla, avocados, pineapples, chewing gum, rubber, peanuts, cashews, Brazil nuts, pecans, blueberries, strawberries, quinoa, amaranth, chia, and agave. The result of these exchanges, known generally as the Columbian Exchange, was to significantly improve the agricultural potential of not only in America, but also that of Europe and Asia.