Opuntia santamaria (E.M.Baxter) Wiggins, Veg. Fl. Sonoran Desert 2: 966. 1964 Opuntia santamaria (E.M.Baxter) Wiggins, Veg. Fl. Sonoran Desert 2: 966. 1964is new combination for Grusonia santamaria E.M.Baxter in Cact. Succ. J. (Los Angeles) 6: 160. 1934Taxon for this nameOpuntia santamaria (E.M.Baxter) Wiggins