Switchgrass (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Switchgrass is a North American native prairie grass widely viewed as one of the most promising of all the biofuel crop candidates. Credit Photo courtesy of Great Lake Bioenergy Research Center 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.