Arizona Rare Cactus Photos
|Mammillaria macdougalii Flat Cactus (formerly M. heyderi var. macdougalii)|
(formerly M. microcarpa)
grahamii typically has dark hooked spines. Occasionally, specimens
straight white spines are found. These have been called M. oliviae, but notice
that the plant above has both types of spines.
|Coryphantha vivipara Beehive Cactus (formerly C. vivipara var. bisbeeana)|