Miniature Woolly Star in Flower (IMAGE) University of Arizona Caption Miniature woolly star, known to scientists as Eriastrum diffusum, is one of the plants that has been blooming at higher elevations in Arizona's Santa Catalina Mountains as the summer temperatures warm. Credit C. David Bertelsen. Usage Restrictions This photo may only be used to illustrate a story about the research described in the accompanying news release, 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.