One relatively unusual feature for Populus, compared to most flowering plants, is that individual trees and (therefore) clones are unisexual; the flowers are unisexual and any one tree/clone produces ...One relatively unusual feature for Populus, compared to most flowering plants, is that individual trees and (therefore) clones are unisexual; the flowers are unisexual and any one tree/clone produces only one kind of flower, either male or female.Both the male and female flowers occur in catkins, drooping clusters of flowers that lack obvious petals.
