The scientific classification of Royal Fern and Pineapple 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 Pineapple kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Royal Fern and Pineapple family is a major factor of Royal Fern and Pineapple 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 Pineapple belongs to the family Bromeliaceae.
While comparing scientific classification, Royal Fern and Pineapple genus and other classification are also important. Also, when you compare Royal Fern and Pineapple, 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 Ananas. Royal Fern tribe is Not Available and Pineapple tribe is Not Available. Royal Fern clade is Not Available and order is Polypodiales whereas Pineapple clade is Angiosperms, Commelinids and Monocots and order is Bromeliales. Every plant have subfamilies. Royal Fern subfamilies are, Not Available and Pineapple subfamilies are Bromelioideae. In this way you can compare scientific classification of Royal Fern and Pineapple and other products also.