Aapa mires
Fens, sometimes called ‘string bogs’, of circumpolar distribution, found in northern Scandinavia and boreal Canada. They are soligenous mires with ridges arranged roughly normal to the slope, along ...
bog
[Ge]A general term often used rather indiscriminately to describe permanent wetland in which communities of plants grow on generally rather acid waterlogged ground. See blanket bog; ombrogenous bog; ...
carr
A locally variable term of Scandinavian origin, used to describe forested, wet, rheotrophic habitats, usually with some peat development but with neutral (not extremely acid) waters and good nutrient ...
palustrine wetland
Any non‐tidal wetland that is dominated by trees, shrubs, persistent emergent plants, emergent mosses or lichens, and small, shallow open water ponds. Examples include swamps, marshes, bogs, and fens.
peat
A mass of dark-brown or black fibrous plant debris produced by the partial disintegration of vegetation in wet places (see hydrosere). It may accumulate in depressions. When subjected to burial and ...
swamp
A low‐lying area of wetland that is usually at least partially flooded, is covered with grasses and trees, has better drainage than a bog, has more woody plants than a marsh, and does not accumulate ...
Thelypteridaceae
A family of leptosporangiate ferns with the mixed type of sorus. The sori are superficial, small, near the pinnule margins, and have either no indusium or a kidney-shaped one that is soon evanescent. ...
valley bog
A mire community that develops in wet valley bottoms, valleys with some downstream impedance, or badly drained hollows. Many European valley mires have layers of charcoal in their stratigraphy below ...
wetland
Land that is covered with water for at least part of each year, and is thus transitional between terrestrial and aquatic ecosystems. It supports aquatic vegetation that is specifically adapted for ...
