Perfect flowers are those that have the ability to make male gametes, receive male gametes and make female gametes as well according to the Plant & Soil Sciences eLibrary. They are able to produce seed from sexual reproduction.
Perfect flowers are able to work to produce a seed all on their own. While there are several different varieties of perfect flowers in the world, the parts that make them true perfect flowers are the same. Perfect flowers have a stamen, a pistil with stigma, style and ovary, and a pedicel. The flower's anthers are able to produce pollen to reproduce on their own, without need of cross-pollination.