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