Denis Conover (IMAGE) University of Cincinnati Caption UC biology professor Denis Conover holds porcelainberry, one of several nonnative and invasive species he found in a new plant survey in southwest Ohio. Credit Lisa Ventre/UC Usage Restrictions None License Original 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.