Sclerocactus sileri (L. Benson) Heil & J.M. Porter  
Family: Cactaceae
House Rock Fish-Hook Cactus
Sclerocactus sileri image
Wendy Hodgson  
Sclerocactus sileri
Sclerocactus sileri image
Wendy Hodgson  
Sclerocactus sileri image
Wendy Hodgson