A flower is a sometimes known as a bloom is the reproductive structure found in flowering plants The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs.
Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) resulting from cross pollination or allow selfing (fusion of sperm and egg from the same flower) when self pollination occurs.
Источник: rutube.ru