Opuntia tidbaldi J.M.Bigelow in Pacif. Railr. Rep. 4: 11. 1856 Opuntia tidbaldi J.M.Bigelow in Pacif. Railr. Rep. 4: 11. 1856non Opuntia tidballii J.M.Bigelow in Pacif. Railr. Rep. Parke, Bot. 4(5): 11. 1857Taxon for this nameOpuntia tidbaldi J.M.Bigelow