The scientific classification of Goumi and Crown-of-Thorns 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. Goumi and Crown-of-Thorns kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Goumi and Crown-of-Thorns family is a major factor of Goumi and Crown-of-Thorns 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. Goumi belongs to the family Elaeagnaceae and Crown-of-Thorns belongs to the family Euphorbiaceae.
While comparing scientific classification, Goumi and Crown-of-Thorns genus and other classification are also important. Also, when you compare Goumi and Crown-of-Thorns, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Elaeagnus and other plant's genus is Euphorbia. Goumi tribe is Not Available and Crown-of-Thorns tribe is Euphorbieae. Goumi clade is Angiosperms, Eudicots and Rosids and order is Rhamnales whereas Crown-of-Thorns clade is Angiosperms, Eudicots and Rosids and order is Euphorbiales. Every plant have subfamilies. Goumi subfamilies are, Not Available and Crown-of-Thorns subfamilies are Euphorbioideae. In this way you can compare scientific classification of Goumi and Crown-of-Thorns and other products also.