Barrel cactus

Description

Some species of barrel cactus, such as the desert barrel cactus (Ferocactus cylindraceus), reach over 1 metre (3.3 ft) in height at maturity and have been known to reach 3 metres (9.8 ft) in exceptional cases. The ribs are numerous and pronounced, and the spines are long and can range in color from yellow to tan to red, depending on the age of the plant and the species. Flowers appear at the top of the plant only after many years. The barrel cactus can live to be over 100 years old.

Barrel cactus buds typically start to bloom in April with a bright yellow or orange flower. Pink and red varieties also exist but occur less frequently. The flowers only appear on the very top of the plant. As the flowers begin to wilt in early May, they may change color. A late summer North American Monsoon desert rainstorm can produce a late bloom, as shown in the photograph below of the orange-flowered variety (it bloomed two days after a hurricane in mid-August and continued to bloom through the end of September).

Fruit

As the flowers wilt away, small pineapple-shaped greenish fruit may form. Left untouched, the fruit has been known to last a full calendar year. The fruit can be easily removed but is not usually consumed because it is fairly dry and bitter.