Central Taxonomic Thesaurus
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  Plantae
    Tracheophyta
           [Tracheobionta]
    Spermatophyta
      Magnoliophyta
             [Angiospermae]
         Eudicots
             Core Eudicots
               Asterids
               Campanulids
                    Bruniales
                            Columelliaceae
                                     Columellia
                                             Columellia oblonga
                                               Columellia oblonga subsp. sericea
                                               Columellia oblonga subsp. serrata
                                                     [Columellia serrata]
                                             Columellia obovata
                                     Desfontainia
                                             Desfontainia fulgens
                                             Desfontainia spinosa
                                             Desfontainia splendens
                                                   [Desfontainia costaricensis]
                                                   [Desfontainia steyermarkii]