ferocactus(n = noun.plant) genus ferocactus - genus of nearly globular cacti of Mexico and southwestern United States: barrel cacti;
is a kind of caryophylloid dicot genus
is a member of cactaceae, cactus family, family cactaceae
a genus of nearly globular cacti of Mexico and Southwestern U. S., including some of the barrel cacti. [WordNet 1.5]