root › cellular organisms › Eukaryota › Viridiplantae › Streptophyta › Streptophytina › Embryophyta › Tracheophyta › Euphyllophyta › Spermatophyta › Magnoliopsida › Mesangiospermae › eudicotyledons › Gunneridae › Pentapetalae › rosids › fabids › Rosales › Rosaceae › Amygdaloideae › Maleae › Pyrus › Pyrus x bretschneideri