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