Monoecious plants have both male and female flowers on the same plant. Dioecious plants have only one sex of flower per plant. Both monoecious and dioecious plants generally require cross-pollination. When a pollen grain lands on a receptive stigma, it forms a pollen tube down the style to the ovary. Male genetic material passes down the pollen tube and fertilizes an ovule.
Ovules become seeds and the surrounding ovary develops into the fruit. .