While flowers typically wilt after pollination, many angiosperm taxa maintain their flowers even after their sexual viability has come to an end. During this time, flowers that have been successfully pollinated and have reduced rewards may undergo color changes, which act as a signal to their pollinators. Insect pollinators preferentially visit flowers that are sexually viable and have not undergone color change. Pollinators will learn and discriminate against floral stages from these signals benefiting both parties by allowing insects to be guided to flowers that are rewarding, while the flowers receive pollination.
