Cactus Closeup

cactus_s.jpg (52104 bytes)

This closeup of a cactus shows the "business" end of the cactus. Does anyone know what kind of cactus this is??

Taken about 20 miles west of Phoenix, AZ

March, 1999

Nikon F4, Nikor 105mm/2.8 Micro, Fuji Velvia, F22