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