DENDROLOGY

Detailed explanation-1: -Species is the lowest level of the taxonomic classification hierarchy and the members of the species share the most common characteristics with themselves.

Detailed explanation-2: -Species. The species is the most fundamental unit in taxonomy and ranks at the base of the biological classification hierarchy. Members of the same species share the same evolutionary history and are more closely related to each other than they are to any other organisms, including other members of the same genus.

Detailed explanation-3: -Genus comprises a group of related species which has more characters in common in comparison to species of other genera.

Detailed explanation-4: -The Kingdom is the largest and most inclusive of the taxonomic categories.