Denis Conover (IMAGE) University of Cincinnati Caption UC biology professor Denis Conover conducted a plant survey in southwest Ohio where he found a rise in nonnative, invasive species such as this porcelainberry. 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.