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 Ca·tal·pa n.  Bot. A genus of American and East Indian trees, of which the best known species are the Catalpa bignonioides, a large, ornamental North American tree, with spotted white flowers and long cylindrical pods, and the Catalpa speciosa, of the Mississipi valley; -- called also Indian bean.
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 Catalpa speciosa
      n : catalpa tree of central United States