The scientific classification of Century Plant and Petunia 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. Century Plant and Petunia kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Century Plant and Petunia family is a major factor of Century Plant and Petunia 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. Century Plant belongs to the family Agavaceae and Petunia belongs to the family Solanaceae.
While comparing scientific classification, Century Plant and Petunia genus and other classification are also important. Also, when you compare Century Plant and Petunia, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Agave and other plant's genus is Petunia. Century Plant tribe is Not Available and Petunia tribe is Not Available. Century Plant clade is Angiosperms and Monocots and order is Asparagales whereas Petunia clade is Angiosperms, Asterids and Eudicots and order is Solanales. Every plant have subfamilies. Century Plant subfamilies are, Agavoideae and Petunia subfamilies are Petunioideae. In this way you can compare scientific classification of Century Plant and Petunia and other products also.