The scientific classification of Pelargonium and Barley 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. Pelargonium and Barley kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Pelargonium and Barley family is a major factor of Pelargonium and Barley 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. Pelargonium belongs to the family Geraniaceae and Barley belongs to the family Poaceae.
While comparing scientific classification, Pelargonium and Barley genus and other classification are also important. Also, when you compare Pelargonium and Barley, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Pelargonium and other plant's genus is Hordeum. Pelargonium tribe is Not Available and Barley tribe is Triticeae. Pelargonium clade is Angiosperms, Eudicots and Rosids and order is Geraniales whereas Barley clade is Angiosperms, Commelinids and Monocots and order is Cyperales. Every plant have subfamilies. Pelargonium subfamilies are, Not Available and Barley subfamilies are Pooideae. In this way you can compare scientific classification of Pelargonium and Barley and other products also.