Opuntia versicolor Engelm. ex Toumey in Gard. & Forest 8: 325. 1895 Opuntia versicolor Engelm. ex Toumey in Gard. & Forest 8: 325. 1895is basionym for Grusonia versicolor (Engelm. ex Toumey) G.D.Rowley in Tephrocactus Study Group 12(3): 45. 2006Taxon for this nameOpuntia versicolor Engelm. ex Toumey