The scientific classification of Cardon and Beardtongue 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 Beardtongue kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Cardon and Beardtongue family is a major factor of Cardon and Beardtongue 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 Beardtongue belongs to the family Scrophulariaceae.
While comparing scientific classification, Cardon and Beardtongue genus and other classification are also important. Also, when you compare Cardon and Beardtongue, 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 Penstemon. Cardon tribe is Pachycereeae and Beardtongue tribe is Not Available. Cardon clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Beardtongue clade is Angiosperms, Asterids and Eudicots and order is Lamiales. Every plant have subfamilies. Cardon subfamilies are, Cactoideae and Beardtongue subfamilies are Not Available. In this way you can compare scientific classification of Cardon and Beardtongue and other products also.