Occasionally, a few perfect flowers are present. Flowers are yellowish green in color. The calyx is composed of four to five sepals that look similar to the petals. Sepals fall early in the life of the flower. Flower s are without petals.
Stamens are numerous and tangled together.
Anthers are slender with long, narrow points at the apex. Pistils range from 4 to 17 in number. The ovary is convex on one side and flattened on the other. There is one stigma. Fruits are achenes with 10 to 12 ribs on the outer surface.