Stenocactus obvallatus (DC.) A.Berger ex A.W.Hill in Index Kew. 8: 228. 1933 Stenocactus obvallatus (DC.) A.Berger ex A.W.Hill in Index Kew. 8: 228. 1933is new combination for Echinocactus obvallatus DC., Prodr. 3: 462. 1828Taxon for this nameStenocactus obvallatus (DC.) A.Berger ex A.W.Hill