Opuntia hickenii Britton & Rose, Cactaceae 1: 93. 1919
Opuntia hickenii, Cactaceae 1: 93. 1919
is basionym for Maihueniopsis hickenii in Cactaceae Syst. Init. 25: 21. 2011
is basionym for Maihueniopsis darwinii var. hickenii in Darwiniana 25(1–4): 201. 1984
is basionym for Opuntia darwinii var. hickenii, Tephrocactus u. and. Feigenkakt.: 100. 2000
is basionym for Tephrocactus hickenii in Revista Argent. Bot. 1: 216. 1926
Isotype: Argentina, Chubut, dept. Biedma, Puerto Madryn, near the sea, C. Hicken s.n. (NY: NY00386082) https://plants.jstor.org/stable/10.5555/al.ap.specimen.ny00386082
Holotype: Argentina, Chubut, dept. Biedma, Puerto Madryn, near the sea, C. Hicken s.n. (US: US00115885) https://plants.jstor.org/stable/10.5555/al.ap.specimen.us00115885