Ferocactus townsendianus var. santa-maria (Britton & Rose) G.E.Linds. in Cact. Succ. J. (Los Angeles) 27: 170. 1955 Ferocactus townsendianus var. santa-maria (Britton & Rose) G.E.Linds. in Cact. Succ. J. (Los Angeles) 27: 170. 1955Taxon for this nameFerocactus townsendianus var. santa-maria (Britton & Rose) G.E.Linds.
