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