Opuntia angustata Engelm. & J.M.Bigelow in Proc. Amer. Acad. Arts 3: 292. 1856 Opuntia angustata Engelm. & J.M.Bigelow in Proc. Amer. Acad. Arts 3: 292. 1856Taxon for this nameOpuntia angustata Engelm. & J.M.Bigelow