Arrowheads (IMAGE) Pensoft Publishers Caption This is part of rice field after harvesting that is heavily infested with arrowheads. Their white flowers making them distinguishable from other weeds. Credit Atousa Farahpour Haghani Usage Restrictions CC-BY 4.0 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.