Hay Huts Dot Boreal Floodplain (IMAGE) University of Washington Caption Huts used for storing fodder dot the floodplains, where sedges have been harvested for hundreds of years without additional fertilization. Early settlers cleared willows to encourage and harvest sedges and grasses. Credit T DeLuca/U of Washington Usage Restrictions Credit required 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.