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| globular or cylindrical cacti; globular or cylindrical cacti; southwestern United States to Brazil ❲Echinocactus❳ | ||||
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| mainly globose cacti of southwestern United States and Mexico covered with many nodules; mainly globose cacti of southwestern United States and Mexico covered with many nodules; superficially resembling and formerly included in genus Mammillaria ❲Coryphantha❳ |