The scientific classification of Allamanda and Spinach 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 Spinach kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Allamanda and Spinach family is a major factor of Allamanda and Spinach 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 Spinach belongs to the family Chenopodiaceae.
While comparing scientific classification, Allamanda and Spinach genus and other classification are also important. Also, when you compare Allamanda and Spinach, 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 Spinacia. Allamanda tribe is Apocyneae and Spinach tribe is Anserineae. Allamanda clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas Spinach clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales. Every plant have subfamilies. Allamanda subfamilies are, Rauvolfioideae and Spinach subfamilies are Chenopodioideae. In this way you can compare scientific classification of Allamanda and Spinach and other products also.