Foxglove (IMAGE) Medical University of South Carolina Caption This is an illustration featuring foxglove, the plant from which cardiac glycosides are derived. Credit Illustration by Dr. Stephen Duncan, Medical University of South Carolina Usage Restrictions Use with appropriate caption and credit line 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.