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