Dioecious plants are species that have distinct male and female individuals. This means that one plant will produce only male flowers, while another will produce only female flowers. For reproduction to occur, pollen from the male plant must reach the female plant, often facilitated by wind or pollinators like bees. Examples of dioecious plants include kiwi, holly, and willow. In these species, having separate sexes can promote genetic diversity, as cross-pollination between different individuals is necessary for seed production. This reproductive strategy is common in many flowering plants and contributes to their ecological adaptability.