The scientific classification of Tabebuia and American Chestnut 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 and American Chestnut kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Tabebuia and American Chestnut family is a major factor of Tabebuia and American Chestnut 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 belongs to the family Bignoniaceae and American Chestnut belongs to the family Fagaceae.
While comparing scientific classification, Tabebuia and American Chestnut genus and other classification are also important. Also, when you compare Tabebuia and American Chestnut, 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 Castanea. Tabebuia tribe is Not Available and American Chestnut tribe is Not Available. Tabebuia clade is Angiosperms, Asterids and Eudicots and order is Lamiales whereas American Chestnut clade is Angiosperms, Eudicots and Rosids and order is Fagales. Every plant have subfamilies. Tabebuia subfamilies are, Not Available and American Chestnut subfamilies are Not Available. In this way you can compare scientific classification of Tabebuia and American Chestnut and other products also.