The scientific classification of Bird Cherry and Japanese Crab Apple includes the entire classification chart that includes kingdom, family, clade, tribe etc. A kingdom is the second highest taxonomic rank. A taxonomic rank is the level that a living organisms are placed in hierarchical level of arrangement of life forms. All the living organisms are divided into kingdoms. Plant kingdom is a main classification of living organisms that include all plants. There are six kingdoms which are: Plantae, Animalia, Fungi, Protista, Aschaea/Archaeabacteria and Bacteria Eubacteria. Bird Cherry and Japanese Crab Apple kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Bird Cherry and Japanese Crab Apple family is a major factor of Bird Cherry and Japanese Crab Apple Scientific Classification. Plant family helps you narrow the search of your plants. It also gives you idea about, how the plant looks, how the seed will be like etc. These two plant families can be different or same. Bird Cherry belongs to the family Rosaceae and Japanese Crab Apple belongs to the family Rosaceae.
While comparing scientific classification, Bird Cherry and Japanese Crab Apple genus and other classification are also important. Also, when you compare Bird Cherry and Japanese Crab Apple, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Prunus and other plant's genus is Malus. Bird Cherry tribe is Acacieae and Japanese Crab Apple tribe is Maleae. Bird Cherry clade is Angiosperms, Eudicots and Rosids and order is Rosales whereas Japanese Crab Apple clade is Angiosperms, Eudicots and Rosids and order is Rosales. Every plant have subfamilies. Bird Cherry subfamilies are, Prunoideae and Japanese Crab Apple subfamilies are Amygdaloideae. In this way you can compare scientific classification of Bird Cherry and Japanese Crab Apple and other products also.