Taxonomic status: Unresolved

homotypic synonyms:
Echinocactus napinus Phil.; Eriosyce napina (Phil.) Katt.; Malacocarpus napinus (Phil.) Britton & Rose; Neochilenia napina (Phil.) Backeb.; Neoporteria napina (Phil.) Backeb.; Thelocephala napina (Phil.) Y.Itô;

protologue: Repert. Spec. Nov. Regni Veg. 50: 207 (1941)
URL protologue: http://bibdigital.rjb.csic.es/ing/Libro.php?Libro=6633&Pagina=210

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