The scientific classification of Flame-of-the-forest and Red Onion 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. Flame-of-the-forest and Red Onion kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Flame-of-the-forest and Red Onion family is a major factor of Flame-of-the-forest and Red Onion 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. Flame-of-the-forest belongs to the family Fabaceae and Red Onion belongs to the family Liliaceae.
While comparing scientific classification, Flame-of-the-forest and Red Onion genus and other classification are also important. Also, when you compare Flame-of-the-forest and Red Onion, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Butea and other plant's genus is Allium. Flame-of-the-forest tribe is Phaseoleae and Red Onion tribe is Not Available. Flame-of-the-forest clade is Angiosperms, Eudicots and Rosids and order is Fabales whereas Red Onion clade is Angiosperms and Monocots and order is Liliales. Every plant have subfamilies. Flame-of-the-forest subfamilies are, Faboideae and Red Onion subfamilies are Allioideae. In this way you can compare scientific classification of Flame-of-the-forest and Red Onion and other products also.