Alternate name: Senita

Family: Cactaceae, Cactus view all from this family

Description Habit: native perennial tree or shrub.
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Flower March to December.

Habitat Hills, plains, slopes in well-drained areas; 1300-1650 ft (400-500 m); also cultivated as an ornamental.

Range Primarily a Mexican species; in the U.S., found only at Organ Pipe Cactus National Monument in southern Arizona.

Discussion Also known as old-man-cactus. Collection restricted in Arizona.

Senita cactus is a member of the family Cactaceae, which consists of succulent, spiny plants of dry areas including herbs, shrubs, a few small trees, epiphytes, and vines. Cactus family plants may be herbaceous or woody, with enlarged, cylindrical or flattened stems, often jointed, and with many clustered spines and hairs spreading from a center. There are about 1800 species in tropical and warm temperate America, especially dry regions.