Trichocereus cuzcoensis Skip Uebelhart's cactus pictures from the Inca Trail, Peru.

Trichocereus cuzcoensis

Corryocactus erectus Corryocactus erectus
Austrocylindropuntia (Tephrocactus or Opuntia) floccosus Small plants of Austrocylindropuntia (or Tephrocactus or even just Opuntia) floccosus

Click here for some big 'uns.... 

                             click for some big 'uns!