Opuntia macrorhiza Engelm. [ Opuntia tortispina Engelm. & J.M. Bigelow]
      
no HD illustration available (m3)
12 720490 Opuntia macrorhiza Engelm. Cactaceae
N.L. Britton, J.N. Rose, Cact., vol. 1 : t. 15 (1919) [M.E. Eaton]