Research and Conservation in Southern Sonora, Mexico

Echinocereus stoloniferus stoloniferus (choyita, pitahayita)

Echinocereus stoloniferus tayopensis (choyita, pitahayita)

Echinocereus stoloniferus tayopensis near San Bernardo, Sonora. All these stems are probably a single clone. Photo: Mark Dimmitt	Echinocereus stoloniferus tayopensis forms dense clusters and flowers profusely in cultivation. Photo: Mark Dimmitt
Echinocereus stoloniferus tayopensis flower with a cactus bee laden with pollen. Photo: Mark Dimmitt