The scientific classification of Allamanda and American Hazelnut 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. Allamanda and American Hazelnut kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Allamanda and American Hazelnut family is a major factor of Allamanda and American Hazelnut 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. Allamanda belongs to the family Apocynaceae and American Hazelnut belongs to the family Betulaceae.
While comparing scientific classification, Allamanda and American Hazelnut genus and other classification are also important. Also, when you compare Allamanda and American Hazelnut, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Allamanda and other plant's genus is Corylus. Allamanda tribe is Apocyneae and American Hazelnut tribe is Coryleae. Allamanda clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas American Hazelnut clade is Angiosperms, Eudicots and Rosids and order is Fagales. Every plant have subfamilies. Allamanda subfamilies are, Rauvolfioideae and American Hazelnut subfamilies are Coryloideae. In this way you can compare scientific classification of Allamanda and American Hazelnut and other products also.