The scientific classification of Oleander and Queen of the Night 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 Queen of the Night kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Oleander and Queen of the Night family is a major factor of Oleander and Queen of the Night 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 Queen of the Night belongs to the family Cactaceae.
While comparing scientific classification, Oleander and Queen of the Night genus and other classification are also important. Also, when you compare Oleander and Queen of the Night, 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 Selenicereus. Oleander tribe is Wrightieae and Queen of the Night tribe is Hylocereeae. Oleander clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas Queen of the Night clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales. Every plant have subfamilies. Oleander subfamilies are, Apocynoideae and Hippocastanoideae and Queen of the Night subfamilies are Cactoideae. In this way you can compare scientific classification of Oleander and Queen of the Night and other products also.