prunus: a genus of shrubs and trees of the family Rosaceae that is widely distributed in temperate regions
rosid dicot genus: a genus of dicotyledonous plants
dilleniidae: a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder