A bayhead or baygall is a specific type of wetland or swamp habitat. The name baygall is derived from sweetbay magnolia (Magnolia virginiana) and sweet gallberry holly (Ilex coriacea). Baygalls are recognized as a discrete ecosystem by ecologist and the swamps have been described as "distinct wetland communities in the Natural Communities of Louisiana". Baygall swamps are most often found in the low laying margins of floodplains and bottomlands with little or poor drainage to the main creek, bayou, or river channel. Baygall or bayhead swamps found on slopes and hillsides are sometimes referred to as a forest seep or hanging bogs. Hanging bogs are typically found in hardwood-pine forests. Most baygall swamps are semi-permanently saturated, or flooded.