A petiole or leaf stalk is a cylindrical or sub-cylindrical structure of a leaf which joins the lamina to the base. Green, flattened petioles may be called winged petioles, e.g., Citrus and Dionaea.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.