The scientific classification of Guava and Ixora 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. Guava and Ixora kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Guava and Ixora family is a major factor of Guava and Ixora 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. Guava belongs to the family Myrtaceae and Ixora belongs to the family Rubiaceae.
While comparing scientific classification, Guava and Ixora genus and other classification are also important. Also, when you compare Guava and Ixora, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Psidium guajava and other plant's genus is Ixora. Guava tribe is Not Available and Ixora tribe is Ixoreae. Guava clade is Dicotyledonous and order is Myrtales whereas Ixora clade is Angiosperms, Asterids and Eudicots and order is Gentianales. Every plant have subfamilies. Guava subfamilies are, Rosoideae and Ixora subfamilies are Ixoroideae. In this way you can compare scientific classification of Guava and Ixora and other products also.