Opuntia ficus-indica a fruit crop, and also for the vegetable nopales and other uses. Most culinary references to the "prickly pear" are referring to this species. The name "tuna" is also used for the fruit of this cactus, and for "Opuntia" in general; according to Alexander von Humboldt, it was a word of Taino origin taken into the Spanish language around 1500. Cacti are good crops for dry areas because they convert water into biomass efficiently. "O. ficus-indica", as the most widespread of the long-domesticated cactuses, is as economically important as maize and blue agave in Mexico. Because "Opuntia" species hybridize easily,
Opuntia (seedless) cultivars are also available. In Mexico, prickly pears are often used to make appetizers, soups, and salads through entrees, vegetable dishes, and breads to desserts, beverages, candy, jelly, or drinks. The young stem segments, usually called "nopales", are also edible in most species of "Opuntia". They are commonly used in Mexican cuisine in dishes such as "huevos con nopales" (eggs with nopal), or "tacos de nopales". "Nopales" are also an important ingredient in New Mexican cuisine. "Opuntia ficus-indica" has been introduced to Europe, and flourishes in areas with a suitable climate, such as the south of France and southern