Taxonomic status: Accepted


heterotypic synonyms:
Neolloydia unguispina (Engelm.) L.D. Benson; Pediocactus unguispinus (Engelm.) Halda; Sclerocactus unguispinus (Engelm.) N.P. Taylor; Thelocactus unguispinus (Engelm.) G.D. Rowley;

protologue: : (1922)
URL protologue: https://archive.org/stream/#page//mode/2up

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