Opuntia polyacantha var. erinacea
Opuntia polyacantha var. erinacea in Cact. Succ. J. (Los Angeles) 70(4): 188. 1998 sec. Parfitt & Gibson 20031 wfo-0001266537
- ≡Opuntia erinacea in Proc. Amer. Acad. Arts 3: 301. 1856 syn. sec. Parfitt & Gibson 20031 wfo-0001286994
- ≡Opuntia polyacantha subsp. erinacea in Cactology 3 (Suppl. II): 4. 2012 syn. sec. Kew WCVP (2019)2 wfo-0001433308
- ≡Opuntia erinacea var. erinacea syn. sec. Parfitt & Gibson 20031 wfo-0001286995
- =Opuntia ursina, Dict. Hort. 2: 896. 1898 syn. sec. Parfitt & Gibson 20033 wfo-0001287334
- ≡Opuntia erinacea var. ursina, Fl. Calif. 2: 542. 1936 syn. sec. Parfitt & Gibson 20033 wfo-0001287124
- ≡Opuntia hystricina var. ursina, Cactaceae 1: 610. 1958 syn. sec. Parfitt & Gibson 20033 wfo-0001289685
- =Opuntia erinacea var. paucispina in Bull. S. Calif. Acad. Sci. 34: 3. 1935 syn. sec. Kew WCVP (2019)4 wfo-0001433152
- =Opuntia hystricina var. bensonii, Cactaceae 1: 609. 1958 syn. sec. Kew WCVP (2019)5 wfo-0001433210
- =Opuntia diploursina in Cact. Succ. J. (Los Angeles) 86: 79. 2014 syn. sec. Kew WCVP (2019)6 wfo-0001433130