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| evergreen South American shrub naturalized in United States; evergreen South American shrub naturalized in United States; occasionally responsible for poisoning livestock ❲Nicotiana glauca❳ | ||||
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| tall erect South American herb with large ovate leaves and terminal clusters of tubular white or pink flowers; tall erect South American herb with large ovate leaves and terminal clusters of tubular white or pink flowers; cultivated for its leaves ❲Nicotiana tabacum❳ |