Echinocereus lloydii Britton & Rose, Cactaceae 3: 37–38. 1922 Echinocereus lloydii Britton & Rose, Cactaceae 3: 37–38. 1922is basionym for Echinocereus ×roetteri var. lloydii (Britton & Rose) Backeb., Cactaceae 4: 2027. 1960Taxon for this nameEchinocereus lloydii Britton & Rose