The scientific classification of Royal Fern and Ajwain plant 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. Royal Fern and Ajwain plant kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Royal Fern and Ajwain plant family is a major factor of Royal Fern and Ajwain plant 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. Royal Fern belongs to the family Osmundaceae and Ajwain plant belongs to the family Apiaceae.
While comparing scientific classification, Royal Fern and Ajwain plant genus and other classification are also important. Also, when you compare Royal Fern and Ajwain plant, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Osmunda and other plant's genus is Trachyspermum. Royal Fern tribe is Not Available and Ajwain plant tribe is Apieae. Royal Fern clade is Not Available and order is Polypodiales whereas Ajwain plant clade is Angiosperms, Asterids and Eudicots and order is Apiales. Every plant have subfamilies. Royal Fern subfamilies are, Not Available and Ajwain plant subfamilies are Apioideae. In this way you can compare scientific classification of Royal Fern and Ajwain plant and other products also.