There are plenty of different kinds of cacti out there, but not all of them are safe for drinking. Here's what you need to ...

is the fruit of the Opuntia cactus, also called nopal cactus. In botanical terms, the small, plump prickly pear is, in fact, a berry, measuring 2 to 5 inches, and ranging in color from red to pale ...

Native to Mexico, wheel cactus (Opuntia robusta) was likely introduced to Australia, innocently enough, as a hardy ornamental garden plant. It escaped domestication and is now listed among ...