Potential for Spread (image) Pensoft Publishers Caption This picture shows the potential for spread via vegetative pieces of the plant. The plant is pictured in a pile of earth about to be moved from site to another. Credit Graham D. Bonnett Usage Restrictions CC-BY 4.0 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.