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