Opuntia polyacantha var. nicholii
Opuntia polyacantha var. nicholii in Cact. Succ. J. (Los Angeles) 70(4): 188. 1998 sec. Parfitt & Gibson 20031 wfo-0001266532
- ≡Opuntia nicholii, Cacti Ariz., ed. 2: 48–50. 1950 syn. sec. Parfitt & Gibson 20031 wfo-0001220306
- ≡Opuntia hystricina var. nicholii, Cactaceae 1: 610. 1958 syn. sec. Parfitt & Gibson 20031 wfo-0001266531