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Organism
  Plantae
   Viridiplantae
     Streptophyta
     Embryophyta
      Tracheophyta
        Spermatophytina
            Magnoliopsida
                  Asteranae
                    Solanales
                           [Cestrales]
                           [Convolvulales]
                           [Cuscutales]
                           [Hydroleales]
                           [Nolanales]
                           [Sphenocleales]
                            Sphenocleaceae
                                     Sphenoclea
                                             Sphenoclea zeylanica
                                                   [Sphenoclea dalzielii]
                                                   [Sphenoclea pongatium]