The scientific classification of Onion and Lungwort 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. Onion and Lungwort kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Onion and Lungwort family is a major factor of Onion and Lungwort 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. Onion belongs to the family Liliaceae and Lungwort belongs to the family Boraginaceae.
While comparing scientific classification, Onion and Lungwort genus and other classification are also important. Also, when you compare Onion and Lungwort, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Allium and other plant's genus is Pulmonaria. Onion tribe is Allieae and Lungwort tribe is Boragineae. Onion clade is Angiosperms and Monocots and order is Asparagales whereas Lungwort clade is Angiosperms, Asterids and Eudicots and order is Peltigerales. Every plant have subfamilies. Onion subfamilies are, Allioideae and Lungwort subfamilies are Boraginoideae. In this way you can compare scientific classification of Onion and Lungwort and other products also.