didildo or organ pipe cactus
prickly pear or paddle cactus bears an edible fruit
Turk's Cap Cactus
Also called Pope's
Head or Compass Plant (because they tend to tilt toward the south).
They are round or barrel shaped and can grow in hard, rocky, windswept,
and sun-drenched environments where little else can survive. The
small pink fruit is edible.