The scientific classification of Sunflower and Dahlia 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. Sunflower and Dahlia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Sunflower and Dahlia family is a major factor of Sunflower and Dahlia 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. Sunflower belongs to the family Asteraceae and Dahlia belongs to the family Asteraceae.
While comparing scientific classification, Sunflower and Dahlia genus and other classification are also important. Also, when you compare Sunflower and Dahlia, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Heilanthus and other plant's genus is Dahlia. Sunflower tribe is Heliantheae and Dahlia tribe is Coreopsideae. Sunflower clade is Not Available and order is Asterales whereas Dahlia clade is Angiosperms, Asterids and Eudicots and order is Asterales. Every plant have subfamilies. Sunflower subfamilies are, Helianthodeae and Dahlia subfamilies are Asteroideae. In this way you can compare scientific classification of Sunflower and Dahlia and other products also.