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