wet woodland (also called carr) on the low-lying swampy limestone areas within lough leane's floodplain is about in size. this is one of the most extensive areas of this woodland type in ireland. the dominant canopy species here are alder ("alnus glutinosa"), ash ("fraxinus excelsior"), downy birch ("betula pubescens"), and willow ("salix" spp.). the areas that are periodically covered by water are rich in species including grasses, rushes, sedges, and flowers such as marsh bedstraw, meadow sweet, and water mint.