ç$Áç (IMAGE) Friedrich-Schiller-Universitaet Jena Caption Duckweed has a huge potential as a human food source. Credit Photo: Jan-Peter Kasper/FSU Jena 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.