Inland deep fresh marshes in which soil is usually covered with six inches to three feet or more of water during the growing season. Vegetation includes cattails, reeds, bulrushes, spike rushes, and wild rice. In open area, pondweeds, naiads, Conrail, water milfoil, waterbeds, duckweed, water lilies, or spatterdock may occur. These deep marshes may completely fill shallow lake basins, potholes, limestone sinks, and sloughs, or may border open water in such depressions. Type 5 wetland Inland open fresh water, shallow ponds, and reservoirs in which water is usually less than ten feet deep and is fringed by a border of emergent vegetation similar to open areas of type 4 wetland.
Vegetation includes alders, willows, buttonbush, dogwoods, and swamp privet.
This type occurs mostly along sluggish streams and occasionally on floodplains. Type 7 wetland Wooded swamps in which soil is waterlogged at least to within a few inches of the surface during the growing season and is often covered with as much as one foot of water. This type occurs mostly along sluggish streams, on floodplains, on flat uplands, and in shallow basins. Trees include tamarack, arborvitae, black spruce, balsam, red maple, northern white cedar, and black ash. Northern evergreen swamps usually have a thick ground cover of mosses.