Hi! On the weekend, walking along one of the rural roads near the town where I live, in the interior of the province of Buenos Aires, I came across this beautiful cactus flower (Opuntia bonariensis, I guess). These cacti grow wild near the fences of the fields and are edible, both the "leaves" and the fruits. I find the "leaf" a bit slimy, but it could serve as an emergency food. The fruits are very tasty, although they are difficult to peel (they have small thorns) and to eat (lots of seeds). Greetings!