Ferocactus robustus
Ferocactus robustus is a barrel cactus in the genus "Ferocactus" of the family Cacteae. Distribution. "Ferocactus robustus" is widespread in the states of Puebla and Veracruz in Mexico. Description. "Ferocactus robustus" forms large cushions reaching a height up to and a diameter up to . This plant is spherical to club-shaped and has eight sharp-edged ribs. The funnel-shaped flowers are yellow and reach a length of . The fruits are spherical, fleshy, yellow, 2 to 3 inches long.