1. (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)
ferokaktus


2. (any cactus of the genus Echinocactus
strongly ribbed and very spiny
southwestern United States to Brazil)
echinokaktus: : synonim: echinocactus