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Cotton grass |
Andy's Northern Ontario WildflowersFlowering Plants that Grow in Wet Areas |
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Habitat:An habitat is an area which provides living things the combination of food, water, shelter, and space in the proportions needed to live. Wetlands are areas that are permanently or seasonally waterlogged. The wetland is covered or saturated by water for at least part of the year. Wetlands include lakes, rivers, marshes, swamps, bogs and fens. These areas are characterized by standing or moving water. Beaver dams, roads, or natural hills may form a barrier behind which water collects. A lake may form in depressions in the land. Wetlands hold or slow the movement of water. This is important where communities occur close to a wetland. The wet areas also form a habitat that is home to many plants, birds, fish and animals. There are 5 general wetland types in Canada: bog, fen, marsh, swamp, and shallow open water. Bog - an open peat-covered wetland that is characterized by soils consisting almost entirely of organic matter. Vegetation grows in a setting where the water table is high and nutrient availability is low. Water is derived from rain or from seepage from surrounding acid rocks and soils. The water is stagnant, or nearly so, and acidic. Vegetation consists largely of Sphagnum mosses, heath family shrubs, and certain sedge species. Trees, if present, form open-canopied forests of stunted growth. Peat forms a layer that exceeds 40 cm. Bog soils are strongly acid and low in calcium, magnesium and some other essential mineral elements. Oxygen levels in the water is low.
Bog on Trout Lake Road: vegetation consists of Leatherleaf, Sheep Laurel, Bog Rosemary, Labrador Tea, Large cranberry, Sundue, Pitcher Plant, Rose pogonia orchid, Grass Pink orchid, and Sphagnum mosses. Date: June 26, 2010
Bog on Trout Lake Road: home of Grass Pink orchid. Date: June 26, 2010
Fen - an open wetland that resembles a bog, except that water seeps slowly through the dense layer of poorly decayed vegetation. Fens are characterized by soils that are high in organic matter. The soils generally have a higher mineral content than bog soils. Commonly, fens develop on a base of limestone or clay. Often there is some running water derived from seepage from surrounding rocks or small streams. The vegetation dominated by sedges, grasses, and other herbaceous and shrubby plants.
Shore Fen, Burwash (August 10, 2001)
Low shrub fen characterized by abundant Leatherleaf, tamarack, Labrador tea, sheep laurel, bog rosemary, and cotton grasses.
Location: Burwash
Marsh -- a wet area, characterized by emergent herbaceous vegetation, like cattails. Water flows through the vegetation. The soils are usually high in organic matter, especially in shallow areas. The soils usually contain a significant mineral component. The waters are neutral to moderately alkaline.
Cattail marsh, Burwash (August 10, 2002)
Swamp - water flows through a vegetation community dominated by living and dead trees.
Shallow open water habitat (Burwash, August 10, 2002)
Some plants in wet areas, such as water lilies, have adapted to the standing water by developing leaves that float. Other plants occupy the shore line where their roots can access plenty of water, but the roots are not actually covered by water. Described are wildflowers and plants that grow:
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URL: http://www.ontariowildflower.com/wet.htm
© 2001-2012
Andy Fyon
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Andy Fyon |
October 20, 2012 |