Chris Thorogood with Rafflesia arnoldii (IMAGE) University of Oxford Caption Chris Thorogood with Rafflesia arnoldii, the largest flower in the world, in Sumatra. Image credit: Chris Thorogood. Credit Chris Thorogood with Rafflesia arnoldii, the largest flower in the world, in Sumatra. Image credit: Chris Thorogood. Usage Restrictions The image can be used if credited. 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.