The scientific classification of American Hornbeam and Periwinkle 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. American Hornbeam and Periwinkle kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. American Hornbeam and Periwinkle family is a major factor of American Hornbeam and Periwinkle 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. American Hornbeam belongs to the family Betulaceae and Periwinkle belongs to the family Apocynaceae.
While comparing scientific classification, American Hornbeam and Periwinkle genus and other classification are also important. Also, when you compare American Hornbeam and Periwinkle, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Carpinus and other plant's genus is Catharanthus. American Hornbeam tribe is Not Available and Periwinkle tribe is Not Available. American Hornbeam clade is Angiosperms, Eudicots and Rosids and order is Fagales whereas Periwinkle clade is Not Available and order is Geraniales. Every plant have subfamilies. American Hornbeam subfamilies are, Not Available and Periwinkle subfamilies are Not Available. In this way you can compare scientific classification of American Hornbeam and Periwinkle and other products also.