Kristin Powell, Washington University in St. Louis (image) Washington University in St. Louis Share Print E-Mail Caption This shows Kristin Powell, Washington University in St. Louis, measuring out a study plot of invasive flax lilies in Highlands Hammock State Park in Florida. Created in 1935 Highlands Hammock is one of the first state parks to be created in Florida. In an oft-repeated tale, the lily now invading the park escaped from a botanical garden once on park grounds. Credit Jessica Powell Usage Restrictions Please credit Share Print E-Mail 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.