Tephrocactus floccosus (Salm-Dyck) Backeb., Kaktus-ABC: 105. 1936 ["1935"] Tephrocactus floccosus (Salm-Dyck) Backeb., Kaktus-ABC: 105. 1936 ["1935"]is new combination for Opuntia floccosa Salm-Dyck in Allg. Gartenzeitung 13: 388. 1845Taxon for this nameTephrocactus floccosus (Salm-Dyck) Backeb.