Cereus and Iris Family
Plant family is the group of plants which have something in common. Cereus and Iris family is a major factor of Cereus and Iris 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. Cereus belongs to the family Cactaceae and Iris belongs to the family Iridaceae.
Cereus and Iris Genus and Other Classification
While comparing scientific classification, Cereus and Iris genus and other classification are also important. Also, when you compare Cereus and Iris, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Selenicereus and other plant's genus is Iris. Cereus tribe is Hylocereeae and Iris tribe is Irideae. Cereus clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Iris clade is Angiosperms and Monocots and order is Asparagales. Every plant have subfamilies. Cereus subfamilies are, Cactoideae and Iris subfamilies are Iridoideae. In this way you can compare scientific classification of Cereus and Iris and other products also.