(IMAGE) University of Bath Caption Embroidery using fluorescent thread on the left-hand leaf, and phosphorescent thread on the two flowers. Both glow under a UV light (Middle) but only the phosphorescent thread glows in the dark briefly (Right). Credit Northeast Forestry University Usage Restrictions None 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.