The scientific classification of Guava and Poinsettia 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 Poinsettia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Guava and Poinsettia family is a major factor of Guava and Poinsettia 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 Poinsettia belongs to the family Euphorbiaceae.
While comparing scientific classification, Guava and Poinsettia genus and other classification are also important. Also, when you compare Guava and Poinsettia, 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 Euphorbia. Guava tribe is Not Available and Poinsettia tribe is Not Available. Guava clade is Dicotyledonous and order is Myrtales whereas Poinsettia clade is Angiosperms, Eudicots and Rosids and order is Malpighiales. Every plant have subfamilies. Guava subfamilies are, Rosoideae and Poinsettia subfamilies are Not Available. In this way you can compare scientific classification of Guava and Poinsettia and other products also.