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