Opuntia saxicola Howell in Proc. Calif. Acad. Sci., ser. 4, 21: 45. 1933 Opuntia saxicola Howell in Proc. Calif. Acad. Sci., ser. 4, 21: 45. 1933Taxon for this nameOpuntia saxicola Howell in Proc. Calif. Acad. Sci., ser. 4, 21: 45. 1933
