A cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits
Any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil - echinocactus
Derived forms: barrel cacti
Type of: cactus
Part of: Ferocactus, genus Echinocactus, genus Ferocactus