Taxonomic information: Oenothera sp.

the root (no rank)
   Eukaryota (domain)
      Viridiplantae (kingdom)
         Embryophyta (phylum)
            Magnoliophyta (subphylum)
               eudicotyledons (no rank)
                  core eudicotyledons (no rank)
                     rosids (no rank)
                        Myrtales (order)
                           Onagraceae (family)
                              Oenothera (genus)
                                 Oenothera sp. (species)
                                    evening primrose (primary common name)
                                    [hide inferior taxa]

Another query: