weedy rice close-up (IMAGE) Washington University in St. Louis Caption Weedy rice is an agricultural pest that is closely related to crop rice. Here, weedy rice grows in Arkansas. Credit Marshall Wedger, Washington University in St. Louis 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.