Eleocharis palustris
Ecology
An emergent rhizomatous perennial herb, found on the margins of ponds, lakes, slow-flowing rivers and streams, in fens, marshes, swamps and wet meadows, and in ditches, dune-slacks and saltmarshes. It grows in a wide range of organic and mineral soils, but rarely on acidic peat. It spreads by rhizomes and reproduces by seed. 0-550 m (Tyne Head, Cumberland).
Status
Trends
Some sites have been lost since the 1962 Atlas, where E. palustris was mapped as `all records`. Subsp. vulgaris is found throughout Britain and Ireland; subsp. palustris is mapped separately.
World Distribution
Eurasian Wide-temperate element.
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Broad Habitats
Light (Ellenberg): 8
Moisture (Ellenberg): 10
Reaction (Ellenberg): 6
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 1
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 14.5
Annual Precipitation (mm): 1098
Height (cm): 60
Perennation - primary
Life Form - primary
Life Form - secondary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 2577
Count of 10km squares in Ireland: 756
Count of 10km squares in the Channel Isles: 10
Atlas Change Index: 0.91
Weighted Changed Factor: 15
Weighted Change Factor Confidence (90%)
JNCC Designations
Atlas text references
Atlas (351a)
.
1988. Comparative Plant Ecology.
.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
.
1968. Critical supplement to the Atlas of the British Flora.
.
1997. Aquatic plants in Britain and Ireland.