Taxonomic status: Synonym

homotypic synonyms:
Cylindropuntia spinosior (Engelm.) F.M.Knuth; Ferocactus spinosior (Engelm.) N.P.Taylor; Grusonia spinosior (Engelm.) G.D.Rowley; Opuntia whipplei var. spinosior Engelm.; Pediocactus spinosior (Engelm.) Halda; Sclerocactus spinosior (Engelm.) D. Woodruff & L.D. Benson;

protologue: Bot. Gaz. 25: 119 (1898)
URL protologue: https://archive.org/stream/mobot31753002216999#page/119/mode/2up

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