The scientific classification of Gardenia and Japanese Poppy 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. Gardenia and Japanese Poppy kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Gardenia and Japanese Poppy family is a major factor of Gardenia and Japanese Poppy 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. Gardenia belongs to the family Rubiaceae and Japanese Poppy belongs to the family Papaveraceae.
While comparing scientific classification, Gardenia and Japanese Poppy genus and other classification are also important. Also, when you compare Gardenia and Japanese Poppy, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Gardenia and other plant's genus is Papaver. Gardenia tribe is Gardenieae and Japanese Poppy tribe is Papaver. Gardenia clade is Angiosperms, Asterids and Eudicots and order is Gentianales whereas Japanese Poppy clade is Angiosperms and Eudicots and order is Ranunculales. Every plant have subfamilies. Gardenia subfamilies are, Ixoroideae and Japanese Poppy subfamilies are Paperveroideae. In this way you can compare scientific classification of Gardenia and Japanese Poppy and other products also.