The scientific classification of Viburnum 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. Viburnum and Iris kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Viburnum and Iris family is a major factor of Viburnum 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. Viburnum belongs to the family Caprifoliaceae and Iris belongs to the family Iridaceae.
While comparing scientific classification, Viburnum and Iris genus and other classification are also important. Also, when you compare Viburnum and Iris, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Viburnum and other plant's genus is Iris. Viburnum tribe is Not Available and Iris tribe is Irideae. Viburnum clade is Angiosperms, Asterids and Eudicots and order is Dipsacales whereas Iris clade is Angiosperms and Monocots and order is Asparagales. Every plant have subfamilies. Viburnum subfamilies are, Not Available and Iris subfamilies are Iridoideae. In this way you can compare scientific classification of Viburnum and Iris and other products also.