Erysimum rhaeticum (IMAGE) Boyce Thompson Institute Caption Flower of the Rhaetian wallflower (Erysimum rhaeticum) under attack by a caterpillar. Credit Tobias Zuest Usage Restrictions Must use appropriate credit 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.