Research and Conservation in Southern Sonora, Mexico

Echinocereus scheeri (choyita)

Echinocereus sheeri scheeri in a sunny site in Southern Sonora. Photo: Mark Dimmitt	Echinocereus sheeri scheeri in a shady site east of Yécora, Sonora. Photo: T.R. Van Devender
Echinocereus sheeri scheeri on a shady cliff near Alamos, Sonora. Photo: George M. Ferguson	Echinocereus sheeri scheeri flowering in cultivation. Photo: Mark Dimmitt

Echinocereus scheeri gentryi

Echinocereus sheeri gentryi differs from the type by its nearly spineless stems and light pink flowers. Photo: Mark Dimmitt