Schoenoplectus lacustris

Tracheophyta MagnoliopsidaCyperaceaeSchoenoplectusSchoenoplectus lacustris

Ecology

A tall rhizomatous perennial herb of standing or flowing fresh water, in conditions ranging from eutrophic and base-rich to oligotrophic and base-poor. Substrates include silt, clay, peat or gravel. It occurs in ponds, lakes, canals, dykes and slow moving rivers, usually in water 0.3-1.5 m deep, but can also be found in deeper water. Generally lowland, but reaching 405 m at Dock Tarn (Cumberland).

Status

Native

World Distribution

Eurosiberian Wide-temperate element.

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 11

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 14.9

Annual Precipitation (mm): 1013

Length: 210

Perennation - primary

Perennial

Life Form - primary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Rhizome shortly creeping

Count of 10km squares in Great Britain: 1202

Count of 10km squares in Ireland: 535

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 0.47

Weighted Changed Factor: 0

Weighted Change Factor Confidence (90%)

23

JNCC Designations

NBNSYS0000002386