Weedy rice in Malaysia (IMAGE) Washington University in St. Louis Caption Working with partners in China, Malaysia and Thailand, biologists in Arts & Sciences at Washington University in St. Louis determined that weedy rice is crossbreeding with wild rice in Southeast Asia. Here, weedy rice rises taller than cultivated rice in fields in Malaysia. Credit BK Song Usage Restrictions For editorial purposes 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.