The pears some are green and some of the harder to find ones are purple... Both have lots of seeds inside... You just find a cactus with a flower on it and when the flower falls off the pear will be ready... The green one has a sweet taste but the purple one is more so... the cactus itself can be eaten most times of the year... You take a cactus and peel the outside and eat the inside... Its slimy & dont taste real good... Best to make a small fire and singe off the burrs before handeling them too much... If you want to grow some cactus just pjant a pear bearly bellow the ground but once tou getem started its hard to get rid of them,,,Cactus can be dangerous if your in a climate that is desert like where it gets cold at night because it has something what cools the core temperature of your body which you dont want if your stranded in that climate overnight...