Ferocactus recurvus (Mill.) Borg, Cacti, ed. 1: 231. 1937 Ferocactus recurvus (Mill.) Borg, Cacti, ed. 1: 231. 1937is new combination for Cactus recurvus Mill., Gard. Dict., ed. 8. 1768Taxon for this nameFerocactus recurvus (Mill.) Borg, Cacti, ed. 1: 231. 1937