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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

 


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