Pachycereus pringlei, also known as Mexican giant cardon or elephant cactus, is a species of cactus native to northwestern Mexico in the states of Baja California, Baja California Sur, and Sonora. It is commonly known as cardón, a name derived from the Spanish word cardo, meaning "thistle." Large stands of this cactus still exist, but many have been destroyed as land has been cleared for cultivation in Sonora. The fruit of this cactus was an important food for the Seri people in Sonora, who call the cactus xaasj.