The scientific classification of Portulaca 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. Portulaca and Brugmansia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Portulaca and Brugmansia family is a major factor of Portulaca 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. Portulaca belongs to the family Portulacaceae and Brugmansia belongs to the family Solanaceae.
While comparing scientific classification, Portulaca and Brugmansia genus and other classification are also important. Also, when you compare Portulaca and Brugmansia, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Portulaca and other plant's genus is Brugmansia. Portulaca tribe is Not Available and Brugmansia tribe is Datureae. Portulaca clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Brugmansia clade is Angiosperms, Asterids and Eudicots and order is Solanales. Every plant have subfamilies. Portulaca subfamilies are, Not Available and Brugmansia subfamilies are Solanoideae. In this way you can compare scientific classification of Portulaca and Brugmansia and other products also.