The scientific classification of Adam's Needle and 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. Adam's Needle and Cactus kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Adam's Needle and Cactus family is a major factor of Adam's Needle and 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. Adam's Needle belongs to the family Agavaceae and Cactus belongs to the family Cactaceae.
While comparing scientific classification, Adam's Needle and Cactus genus and other classification are also important. Also, when you compare Adam's Needle and Cactus, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Yucca and other plant's genus is Not Available. Adam's Needle tribe is Not Available and Cactus tribe is Not Available. Adam's Needle clade is Angiosperms and Monocots and order is Liliales whereas Cactus clade is Angiosperms and Eudicots and order is Caryophyllales. Every plant have subfamilies. Adam's Needle subfamilies are, Agavoideae and Cactus subfamilies are Cactoideae, Maihueniodeae, Opuntioideae and Pereskioideae. In this way you can compare scientific classification of Adam's Needle and Cactus and other products also.