Gymnocalycium joossensianum
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Gymnocalycium joossensianum (Boed.) Britton & Rose [Synonym] = Gymnocalycium schickendantzii (F.A.C.Weber) Britton & Rose (Cactaceae)
Engish:
joossensianus,-a,-um
homotypic synonyms:
Echinocactus joossensianus Boed.;
protologue: Cact. 3: 166 (1922)