Opuntia staffordae Opuntia staffordae Bullock in Cact. J. (London) 8: 15. 1939 sec. Brako & Zarucchi 19931≡Tephrocactus staffordae (Bullock) Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Brako & Zarucchi 199311. Brako, L. & Zarucchi, J.L. 1993: Catalogue of the Flowering Plants and Gymnosperms of Peru 45: 1-1286. – St. LouisContent