Awn formation in cereal crops (IMAGE) Okayama University Caption Needle-like structures known as awns formed at the tip of cereal grains. The figure shows awn formation in (A) Barley, (B) Wheat, (C) Sorghum. (D) Awned (left) and awnless (right) florets of sorghum cultivar used in this study. Credit Wataru Sakamoto from Okayama University Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.