Pediocactus knowltonii L. Benson  
Family: Cactaceae
Knowlton's Pincushion Cactus,  more...
[Pediocactus simpsonii var. knowltonii (L.D. Benson) Halda]
Pediocactus knowltonii image
Robert Sivinski  
Pediocactus knowltonii
Pediocactus knowltonii image
Robert Sivinski  
Pediocactus knowltonii image
Robert Sivinski  
The National Science Foundation
This project made possible by National Science Foundation Award 1410069