Taxonomic status: Accepted

homotypic synonyms:
Echinocactus clavus (Pfeiff.) Poselger; Mammillaria clava Pfeiff.;
heterotypic synonyms:
Coryphantha schlechtendalii (Poselg.) Lemaire;

protologue: Cactées : 34 (1868)
URL protologue: http://libarch.nmu.org.ua/bitstream/handle/GenofondUA/16728/9876d13c04f0125ac3ebe092dcadc43e.pdf?sequence=1

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