The scientific classification of Elkhorn and Sand Dollar Cactus 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. Elkhorn and Sand Dollar Cactus kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Elkhorn and Sand Dollar Cactus family is a major factor of Elkhorn and Sand Dollar Cactus 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. Elkhorn belongs to the family Euphorbiaceae and Sand Dollar Cactus belongs to the family Cactaceae.
While comparing scientific classification, Elkhorn and Sand Dollar Cactus genus and other classification are also important. Also, when you compare Elkhorn and Sand Dollar Cactus, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Euphorbia and other plant's genus is Astrophytum. Elkhorn tribe is Euphorbieae and Sand Dollar Cactus tribe is Cacteae. Elkhorn clade is Angiosperms, Eudicots and Rosids and order is Malpighiales whereas Sand Dollar Cactus clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales. Every plant have subfamilies. Elkhorn subfamilies are, Euphorbioideae and Sand Dollar Cactus subfamilies are Cactoideae. In this way you can compare scientific classification of Elkhorn and Sand Dollar Cactus and other products also.