The scientific classification of Allamanda and St. Augustine Grass 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 St. Augustine Grass kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Allamanda and St. Augustine Grass family is a major factor of Allamanda and St. Augustine Grass 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 St. Augustine Grass belongs to the family Poaceae.
While comparing scientific classification, Allamanda and St. Augustine Grass genus and other classification are also important. Also, when you compare Allamanda and St. Augustine Grass, 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 Stenotaphrum. Allamanda tribe is Apocyneae and St. Augustine Grass tribe is Paniceae. Allamanda clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas St. Augustine Grass clade is Angiosperms, Commelinids and Monocots and order is Cyperales. Every plant have subfamilies. Allamanda subfamilies are, Rauvolfioideae and St. Augustine Grass subfamilies are Panicoideae. In this way you can compare scientific classification of Allamanda and St. Augustine Grass and other products also.