Barrel cactus

File:Echinocactus grusonii 1.jpg

Echinocactus grusonii— Golden Barrel Cactus, endemic to Mexico.

Barrel cactus are various members of the two genera Echinocactus and Ferocactus, found in the deserts of Southwestern North America.

Description

Barrel cactus of some species easily reach over 1 metre (3.3 ft) in height at maturity, and have been known to reach 10 feet in some regions. 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.

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 desert rainstorm can produce a late bloomer as shown in the photo of the orange flowered variety (it bloomed two days after a rain storm in mid August and then continued to bloom right through the end of September).

One should approach a barrel cactus with extreme caution. A puncture to human skin from one of the spines is considered a 'dirty wound'. If the puncture is deep enough to draw blood, antibiotics may be needed; and could take up to several months for the wound to heal properly. Barrel cactus plants are one of the more dangerous cacti to humans in the desert.

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 are not usually consumed because they are fairly dry and bitter to the taste.

Native Americans

Native Americans collected the fruit as emergency food during extreme drought conditions.

The Seri people distinguished three species of barrel cactus:

• Saguaro barrel cactus — Ferocactus cylindraceus
• Siml caacöl (big barrel cactus), siml cöquicöt (killer barrel cactus) — Ferocactus emoryi
• Siml áa (true barrel cactus) — Ferocactus wislizeni.

Cultivation

Barrel cactus are cultivated by plant nurseries as an ornamental plant. They are considered easy to grow and relatively fast growing. They may produce round offshoots.

Barrel cactus can fall over because they grow based on sun orientation. They usually grow towards the south to prevent surface tissue sunburn, giving the name "compass cactus."

Gallery

• Barrel cactus.jpg

  Fishhook Barrel Cactus with fruit.

• Barrel cactus flowers - closeup.jpg

  Barrel cactus flowers

• Barrel Cactus California USA August 2000.jpg

  Field of Barrel Cacti, California

• Barrel Cactus Cluster Sahuarita Arizona 2013.jpg

  Barrel cactus cluster in Sahuarita, Arizona.

• Cacti barrel.JPG

  Barrel cactus at the Arizona-Sonora Desert Museum botanical garden.

• Blooming Barrel Cactus.jpg

  Blooming barrel cactus in the Mojave Desert, California.

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  Late blooming barrel cactus in Landers, California.

• Barrel Cactus in Desert Botanical Gardens.jpg

  Barrel Cactus in Desert Botanical Garden, Phoenix, AZ.