Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub

To avoid cross pollination and favor self-pollination in some plants, their flower remains permanently closed. Such flowers are called closed marriage flower or cleistogamous flowers. This behavior is seen commonly in grass family. Some plants produce flowers which exposes their reproductive organ to favor cross pollination, these flowers are called open marriage flowers or chasmogamous flowers.Commelinaproduces both cleistogamous and chasmogamous types of flowers