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