Opuntia polyacantha var. hystericina (Engelm. & J.M.Bigelow) B.D.Parfitt in Cact. Succ. J. (Los Angeles) 70(4): 188. 1998
Opuntia polyacantha var. hystericina in Cact. Succ. J. (Los Angeles) 70(4): 188. 1998
non Opuntia polyacantha var. hystericina in Cact. Succ. J. (Los Angeles) 70(4): 188. 1998