Tamar Friedlander holding two petunias (IMAGE) The Hebrew University of Jerusalem Caption Tamar Friedlander holding two petunias Credit Nathan Mengisto, Faculty of Agriculture, HUJI. 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.