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