Pollen Release (IMAGE) Bangor University Caption Cock's-foot, orchard grass, or cat grass (Dactylis glomerata) a common grass type, here releasing pollen. (This type was not used in this research project). Credit PollerGEN Usage Restrictions Single use in relation to this story only. 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.