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