Taxonomic status: Unresolved

homotypic synonyms:
Echinocactus setispinus Engelm.; Hamatocactus setispinus (Engelm.) Britton & Rose; Thelocactus setispinus (Engelm.) E.F. Anderson;

protologue: Cact. Succ. J. (Los Angeles) 41: 128 (1969)
URL protologue: https://archive.org/stream/#page/128/mode/2up

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