Grusonia hamiltonii H.E.Gates ex Backeb., Cactaceae 1: 210. 1958
Grusonia hamiltonii, Cactaceae 1: 210. 1958
is basionym for Opuntia hamiltonii in Nat. Cact. & Succ. Journ. 13: 25. 1958
is basionym for Grusonia hamiltonii in Marshall & Bock, Cactaceae: 68. 1941
is basionym for Cylindropuntia hamiltonii, Cactaceae 1: 213. 1958