The scientific classification of Sweetpea and Pepperwort 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. Sweetpea and Pepperwort kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Sweetpea and Pepperwort family is a major factor of Sweetpea and Pepperwort 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. Sweetpea belongs to the family Fabaceae and Pepperwort belongs to the family Marsileaceae.
While comparing scientific classification, Sweetpea and Pepperwort genus and other classification are also important. Also, when you compare Sweetpea and Pepperwort, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Lagerstroemia and other plant's genus is Marsilea. Sweetpea tribe is Vicieae and Pepperwort tribe is Lapidieae. Sweetpea clade is Angiosperms, Eudicots and Rosids and order is Fabales whereas Pepperwort clade is Angiosperms, Eudicots and Rosids and order is NA. Every plant have subfamilies. Sweetpea subfamilies are, Faboideae and Pepperwort subfamilies are NA. In this way you can compare scientific classification of Sweetpea and Pepperwort and other products also.