Tephrocactus floccosus var. canispinus Rauh & Backeb., Descr. Cact. Nov. 1: 6. 1957 ["1956"]
Tephrocactus floccosus var. canispinus, Descr. Cact. Nov. 1: 6. 1957 ["1956"]
is basionym for Opuntia floccosa var. canispina in Natl. Cact. Succ. J. 13: 5. 1958