The scientific classification of Adam's Needle and Raoulia 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 Raoulia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Adam's Needle and Raoulia family is a major factor of Adam's Needle and Raoulia 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 Raoulia belongs to the family Asteraceae.
While comparing scientific classification, Adam's Needle and Raoulia genus and other classification are also important. Also, when you compare Adam's Needle and Raoulia, 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 Raoulia. Adam's Needle tribe is Not Available and Raoulia tribe is Gnaphalieae. Adam's Needle clade is Angiosperms and Monocots and order is Liliales whereas Raoulia clade is Angiosperms, Asterids and Eudicots and order is Asterales. Every plant have subfamilies. Adam's Needle subfamilies are, Agavoideae and Raoulia subfamilies are Not Available. In this way you can compare scientific classification of Adam's Needle and Raoulia and other products also.