The scientific classification of Cardon and Bouteloua Gracilis 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. Cardon and Bouteloua Gracilis kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Cardon and Bouteloua Gracilis family is a major factor of Cardon and Bouteloua Gracilis 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. Cardon belongs to the family Cactaceae and Bouteloua Gracilis belongs to the family Poaceae.
While comparing scientific classification, Cardon and Bouteloua Gracilis genus and other classification are also important. Also, when you compare Cardon and Bouteloua Gracilis, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Pachycereus and other plant's genus is Bouteloua. Cardon tribe is Pachycereeae and Bouteloua Gracilis tribe is Cynodonteae. Cardon clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Bouteloua Gracilis clade is Angiosperms, Commelinids and Monocots and order is Cyperales. Every plant have subfamilies. Cardon subfamilies are, Cactoideae and Bouteloua Gracilis subfamilies are Chloridoideae. In this way you can compare scientific classification of Cardon and Bouteloua Gracilis and other products also.