The scientific classification of Switchgrass and Brugmansia 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. Switchgrass and Brugmansia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Switchgrass and Brugmansia family is a major factor of Switchgrass and Brugmansia 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. Switchgrass belongs to the family Poaceae and Brugmansia belongs to the family Solanaceae.
While comparing scientific classification, Switchgrass and Brugmansia genus and other classification are also important. Also, when you compare Switchgrass and Brugmansia, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Panicum and other plant's genus is Brugmansia. Switchgrass tribe is Paniceae and Brugmansia tribe is Datureae. Switchgrass clade is Angiosperms, Commelinids and Monocots and order is Cyperales whereas Brugmansia clade is Angiosperms, Asterids and Eudicots and order is Solanales. Every plant have subfamilies. Switchgrass subfamilies are, Panicoideae and Brugmansia subfamilies are Solanoideae. In this way you can compare scientific classification of Switchgrass and Brugmansia and other products also.