Wild Cannabis (IMAGE) Max Planck Institute of Geoanthropology Caption Dense patches of wild cannabis grow across the mountain foothills of Eurasia from the Caucuses to East Asia; these plants were photographed growing in the Tian Shan Mountains of Kazakhstan. Credit Robert Spengler Usage Restrictions This image may only be used in the context of reporting on this publication and with appropriate credit information. 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.