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