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