How the Waterwheel Plant Snaps (IMAGE) University of Freiburg Caption The waterwheel got its name because of the leaves that stick out like spokes on a wheel. Credit Photo: Plant Biomechanics Group Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.