The scientific classification of Natal Plum and Oatgrass 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. Natal Plum and Oatgrass kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Natal Plum and Oatgrass family is a major factor of Natal Plum and Oatgrass 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. Natal Plum belongs to the family Apocynaceae and Oatgrass belongs to the family Poaceae.
While comparing scientific classification, Natal Plum and Oatgrass genus and other classification are also important. Also, when you compare Natal Plum and Oatgrass, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Carissa and other plant's genus is Danthonia. Natal Plum tribe is Carisseae and Oatgrass tribe is Aveneae. Natal Plum clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas Oatgrass clade is Angiosperms, Commelinids and Monocots and order is Poales. Every plant have subfamilies. Natal Plum subfamilies are, Rauvolfioideae and Oatgrass subfamilies are Danthonioideae. In this way you can compare scientific classification of Natal Plum and Oatgrass and other products also.