Ferocactus Britton & Rose Ferocactus Britton & Rose, Cactaceae (Britton & Rose) 3: 123. 1922 sec. Hunt & al. 2006=Bisnaga Orcutt, Cactography 1. 1926 syn. sec. Hunt & al. 2006=Parrycactus Doweld in Novosti Syst. Vyssh. Rast. 32: 118. 2000 syn. sec. ???