The scientific classification of Epidendrum and Dendrobium 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. Epidendrum and Dendrobium kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Epidendrum and Dendrobium family is a major factor of Epidendrum and Dendrobium 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. Epidendrum belongs to the family Orchidaceae and Dendrobium belongs to the family Orchidaceae.
While comparing scientific classification, Epidendrum and Dendrobium genus and other classification are also important. Also, when you compare Epidendrum and Dendrobium, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Coilostylis and other plant's genus is Dendrobium. Epidendrum tribe is Epidendreae and Dendrobium tribe is Podochileae. Epidendrum clade is Angiosperms and Monocots and order is Asparagales whereas Dendrobium clade is Angiosperms and Monocots and order is Asparagales. Every plant have subfamilies. Epidendrum subfamilies are, Epidendroideae and Dendrobium subfamilies are Epidendroideae. In this way you can compare scientific classification of Epidendrum and Dendrobium and other products also.