Oxford Ragwort (IMAGE) University of New South Wales Caption Senecio squalidus, or Oxford ragwort, was introduced into the UK from Sicily and was first recorded in the wild in 1794. UNSW Australia scientists have found it has been evolving for more than 200 years. Credit Snežana Trifunović 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.