What happens when the reaches the stigma from the same plant?

When pollen from the same plant reaches the stigma, it may lead to self-pollination. This process allows the plant to fertilize its own ovules, potentially resulting in the production of seeds. However, self-pollination can reduce genetic diversity, which might impact the plant's adaptability and resilience over time. In some cases, plants have mechanisms to promote cross-pollination to enhance genetic variation.