Taxonomic status: Accepted

homotypic synonyms:
Echinocactus schumannianus Nicolai; Eriocactus schumannianus (Nicolai) Backeb.; Malacocarpus schumannianus (Nicolai) Britton & Rose; Notocactus schumannianus (Nicolai) Frić;
heterotypic synonyms:
Echinocactus buchheimianus Haage in Quehl; Malacocarpus grossei (Schumann) Britton & Rose; Parodia warasii (F. Ritter) F.H. Brandt;

protologue: Kakt. Orch. Rundsch. 7(4): 62 (1982)
URL protologue: https://archive.org/stream/#page/62/mode/2up

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