Green Roof Module (IMAGE) American Society for Horticultural Science Caption This is a view of a green roof module planted with blue grama grass in the first season of the trials. Credit Photo by Jennifer Bousselot 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.