(i) PhylumPhylum is a primary division of the animal kingdom. It is a series of animals or plants genetically connected.(ii) ClassThis category includes related orders.(iii) FamilyFamily, has a group of related genera with still less number of similarities as compared to genus and species. Families are characterised on the basis of both vegetative and reproductive features of plant species.(iv) Order A group of families showing certain structural or morphological relationships.(v) GenusGenus comprises of a group of related species, which has more characters in common in comparison to species of other genera.