Cleistogamous flowers never open and in them only self-pollination is operated. In Commelina benghalensis (kankauoa), the underground flowers are cleistogamous, in which Cleistogamy (a type of self-pollination) occurs.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.