The scientific classification of Canna and Comfrey 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 Comfrey kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Canna and Comfrey family is a major factor of Canna and Comfrey 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 Comfrey belongs to the family Boraginaceae.
While comparing scientific classification, Canna and Comfrey genus and other classification are also important. Also, when you compare Canna and Comfrey, 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 Symphytum. Canna tribe is Not Available and Comfrey tribe is Not Available. Canna clade is Angiosperms, Commelinids and Monocots and order is Zingiberales whereas Comfrey clade is Angiosperms, Eudicots and Rosids and order is Lamiales. Every plant have subfamilies. Canna subfamilies are, Not Available and Comfrey subfamilies are Boraginoideae. In this way you can compare scientific classification of Canna and Comfrey and other products also.