Opuntia ferocior (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958 Opuntia ferocior (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958is new combination for Tephrocactus ferocior Backeb. in Cactus (Paris) 38: 250. 1953Taxon for this nameOpuntia ferocior (Backeb.) G.D.Rowley