Wetland types

"Freshwater wetlands" means freshwater swamps, marshes, bogs and similar areas that are inundated or saturated by surface or groundwater at a frequency and for a duration sufficient to support, and which under normal circumstances do support, a prevalence of wetland vegetation typically adapted for life in saturated soils; and, not considered part of a great pond, coastal wetland, river stream or brook. 38 MRSA 480-B(4).

"Coastal wetlands" means all tidal and subtidal lands, including all areas below any identifiable debris line left by tidal action; all areas with vegetation present that is tolerant of salt water and occurs primarily in a salt water or estuarine habitat; and any swamp, marsh, bog, beach, flat or other contiguous lowland which is subject to tidal action during the maximum spring tide level as identified in tide tables published by the National Ocean Service. Coastal wetlands may include portions of coastal sand dunes. 38 MRSA 480-B(2).

The descriptions on the following pages (except for the vernal pool materials) are excerpts from Maine Wetlands and Their Boundaries: A Guide For Code Enforcement Officers, by Ralph W. Tiner. Prepared for the State of Maine Department of Economic and Community Development Office of Comprehensive Planning, Augusta, ME, June 1991.

Coastal Wetlands

Inland Marshes

Wet Meadows


Shrub Swamps

Forested Swamps

Forested Floodplain

Vernal Pools