The scientific classification of Spindle Tree and Iris 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. Spindle Tree and Iris kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Spindle Tree and Iris family is a major factor of Spindle Tree and Iris 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. Spindle Tree belongs to the family Celastraceae and Iris belongs to the family Iridaceae.
While comparing scientific classification, Spindle Tree and Iris genus and other classification are also important. Also, when you compare Spindle Tree and Iris, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Euonymus and other plant's genus is Iris. Spindle Tree tribe is Euonymeae and Iris tribe is Irideae. Spindle Tree clade is Angiosperms, Eudicots and Rosids and order is Celastrales whereas Iris clade is Angiosperms and Monocots and order is Asparagales. Every plant have subfamilies. Spindle Tree subfamilies are, Celastroideae and Iris subfamilies are Iridoideae. In this way you can compare scientific classification of Spindle Tree and Iris and other products also.