In the northeast region of Brazil, which has arid climate similar to north Africa, cactus has been used for cattle and human consumption since forever. I know o

In the northeast region of Brazil, which has arid climate similar to north Africa, cactus has been used for cattle and human consumption since forever. I know of four edible species, and one is even used for jam and liquor. It's the backup plan when the drought hits hard - which is basically every other year in that region.