The scientific classification of Regal Geranium and Oleander 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. Regal Geranium and Oleander kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Regal Geranium and Oleander family is a major factor of Regal Geranium and Oleander 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. Regal Geranium belongs to the family Geraniaceae and Oleander belongs to the family Apocynaceae.
While comparing scientific classification, Regal Geranium and Oleander genus and other classification are also important. Also, when you compare Regal Geranium and Oleander, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Pelargonium and other plant's genus is Nerium. Regal Geranium tribe is Not Available and Oleander tribe is Wrightieae. Regal Geranium clade is Eudicots and Rosids and order is Geraniales whereas Oleander clade is Angiosperms, Asterids and Eudicots and order is Gentianales. Every plant have subfamilies. Regal Geranium subfamilies are, Unknown and Oleander subfamilies are Apocynoideae and Hippocastanoideae. In this way you can compare scientific classification of Regal Geranium and Oleander and other products also.