How can you find a cactus?

A cactus can be found in its native habitat, in the Americas. It can be found in private, public and research collections. For example, it can be found in the displays of botanical gardens and in the laboratories of educational institutions. It can be found among the sale items of mail order and online businesses, nurseries, and plant stores. And it can be found in the yards, work places, and houses of residential gardeners.