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  
The National Science Foundation
This project made possible by National Science Foundation Award 1410069