The scientific classification of Palm Tree 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. Palm Tree and Barley kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Palm Tree and Barley family is a major factor of Palm Tree 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. Palm Tree belongs to the family Arecaceae and Barley belongs to the family Poaceae.
While comparing scientific classification, Palm Tree and Barley genus and other classification are also important. Also, when you compare Palm Tree and Barley, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Archontophoenix and other plant's genus is Hordeum. Palm Tree tribe is Areceae and Barley tribe is Triticeae. Palm Tree clade is Angiosperms, Commelinids and Monocots and order is Arecales whereas Barley clade is Angiosperms, Commelinids and Monocots and order is Cyperales. Every plant have subfamilies. Palm Tree subfamilies are, Arecoideae and Barley subfamilies are Pooideae. In this way you can compare scientific classification of Palm Tree and Barley and other products also.