The scientific classification of Orchid Cactus and Duckweed 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. Orchid Cactus and Duckweed kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Orchid Cactus and Duckweed family is a major factor of Orchid Cactus and Duckweed 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. Orchid Cactus belongs to the family Cactaceae and Duckweed belongs to the family Lemnaceae.
While comparing scientific classification, Orchid Cactus and Duckweed genus and other classification are also important. Also, when you compare Orchid Cactus and Duckweed, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Disocactus and other plant's genus is Lemna. Orchid Cactus tribe is Hylocereeae and Duckweed tribe is Lemneae. Orchid Cactus clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Duckweed clade is Angiosperms and Monocots and order is Arales. Every plant have subfamilies. Orchid Cactus subfamilies are, Cactoideae and Duckweed subfamilies are Lemnoideae. In this way you can compare scientific classification of Orchid Cactus and Duckweed and other products also.