Central Taxonomic Thesaurus
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  Plantae
    Tracheophyta
           [Tracheobionta]
    Spermatophyta
      Magnoliophyta
             [Angiospermae]
         Eudicots
             Core Eudicots
               Asterids
               Lamiids
                    Lamiales
                            Tetrachondraceae
                                     Hasslerella
                                             Hasslerella rojasii
                                     Polypremum
                                             Polypremum procumbens
                                     Tetrachondra