Hairy Vetch and Straw (IMAGE) American Society of Agronomy Caption This hairy vetch is establishing through small grain crop residues in April of 2008 in Rock Springs, Pa. Credit Robert Gallagher, 2008. Usage Restrictions None 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.