Taxonomic status: Unresolved

homotypic synonyms:
Echinocactus uncinatus Galeotti ex Pfeiff.; Echinomastus uncinatus (Galeotti ex Pfeiff.) F.M.Knuth; Ferocactus uncinatus (Galeotti ex Pfeiff.) Britton & Rose; Glandulicactus uncinatus (Galeotti ex Pfeiff.) Backeb.; Hamatocactus uncinatus (Galeotti ex Pfeiff.) Buxb.; Pediocactus uncinatus (Galeotti ex Pfeiff.) Halda; Sclerocactus uncinatus (Galeotti ex Pfeiff.) N.P. Taylor; Thelocactus uncinatus (Galeotti ex Pfeiff.) W.T. Marshall;

protologue: Cact. Succ. J. (Los Angeles) 41: 188 (1969)
URL protologue: https://archive.org/stream/#page/188/mode/2up

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