The scientific classification of Dahlia and Dianthus 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. Dahlia and Dianthus kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Dahlia and Dianthus family is a major factor of Dahlia and Dianthus 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. Dahlia belongs to the family Asteraceae and Dianthus belongs to the family Caryophyllaceae.
While comparing scientific classification, Dahlia and Dianthus genus and other classification are also important. Also, when you compare Dahlia and Dianthus, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Dahlia and other plant's genus is Dianthus. Dahlia tribe is Coreopsideae and Dianthus tribe is Caryophylleae. Dahlia clade is Angiosperms, Asterids and Eudicots and order is Asterales whereas Dianthus clade is Angiosperms and Eudicots and order is Caryophyllales. Every plant have subfamilies. Dahlia subfamilies are, Asteroideae and Dianthus subfamilies are Caryophylloideae. In this way you can compare scientific classification of Dahlia and Dianthus and other products also.