The scientific classification of Wintercreeper and Tree-of-Heaven 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. Wintercreeper and Tree-of-Heaven kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Wintercreeper and Tree-of-Heaven family is a major factor of Wintercreeper and Tree-of-Heaven 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. Wintercreeper belongs to the family Celastraceae and Tree-of-Heaven belongs to the family Simaroubaceae.
While comparing scientific classification, Wintercreeper and Tree-of-Heaven genus and other classification are also important. Also, when you compare Wintercreeper and Tree-of-Heaven, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Euonymus and other plant's genus is Ailanthus. Wintercreeper tribe is Not Available and Tree-of-Heaven tribe is Not Available. Wintercreeper clade is Angiosperms, Eudicots and Rosids and order is Celastrales whereas Tree-of-Heaven clade is Angiosperms, Eudicots and Rosids and order is Sapindales. Every plant have subfamilies. Wintercreeper subfamilies are, Celastroideae and Tree-of-Heaven subfamilies are Not Available. In this way you can compare scientific classification of Wintercreeper and Tree-of-Heaven and other products also.