Ferocactus is a genus of large barrel-shaped cacti. They are found in the southwestern United States and northwestern Mexico. The name derives from the Latin word "ferox", meaning "fierce" and the Greek word "kaktos", meaning "thistle".
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Ferocactus latispinus (Devil's Tongue Barrel Cactus) is an attractive cactus with a globular, light green stem that usually has 21 acute ribs. It grows…
Ferocactus pilosus (Mexican Lime Cactus) is one of the most spectacular species in the genus. It is a simple or clumping, deep green, barrel-shaped to…
Ferocactus hamatacanthus subsp. sinuatus (Mexican Fruit Cactus) is a smaller version of Ferocactus hamatacanthus. It is a barrel cactus with a solitary…
Ferocactus hamatacanthus (Mexican Fruit Cactus) forms to be solitary, usually a globular to oblong shape and grows up to 2 feet (60 cm)…
Ferocactus emoryi (Emory's Barrel Cactus) is a cactus with a solitary, spherical or cylindrical, light green to glaucous stem that grows up…
Ferocactus wislizeni (Arizona Barrel Cactus) is a cactus with a globular to cylindrical stem that grows up to 6.5 feet (2 m) tall and up to…
Ferocactus viridescens (Coast Barrel Cactus) is a cactus with a spherical, ovate, or nearly cylindrical stem. It is usually wider than…
Ferocactus cylindraceus (California Barrel Cactus) is a cactus with a spherical stem that becomes cylindrical. Some older specimens form…
Ferocactus macrodiscus is a barrel cactus that forms a solitary, blue-green stem with up to 35 pronounced vertical ribs. Spines are yellow…
Ferocactus gracilis(Fire Barrel Cactus) is an attractive cactus with a solitary, globular to cylindrical stem that grows up to 5 feet (1.5…