Efossus confusus (Britton & Rose) Orcutt in Cactography 5. 1926 Efossus confusus (Britton & Rose) Orcutt in Cactography 5. 1926is new combination for Echinofossulocactus confusus Britton & Rose, Cactaceae 3: 120. 1922Taxon for this nameEfossus confusus (Britton & Rose) Orcutt