The scientific classification of Sunflower and Corn 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 Corn kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Sunflower and Corn family is a major factor of Sunflower and Corn 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 Corn belongs to the family Poaceae.
While comparing scientific classification, Sunflower and Corn genus and other classification are also important. Also, when you compare Sunflower and Corn, 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 Zea. Sunflower tribe is Heliantheae and Corn tribe is Andropogoneae. Sunflower clade is Not Available and order is Asterales whereas Corn clade is Angiosperms, Commelinids and Monocots and order is Poales. Every plant have subfamilies. Sunflower subfamilies are, Helianthodeae and Corn subfamilies are Panicoideae. In this way you can compare scientific classification of Sunflower and Corn and other products also.