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