Carex pseudocyperus

Tracheophyta MagnoliopsidaCyperaceaeCarexCarex pseudocyperus

Ecology

A pioneer species of wet mud and shallow water, found in a wide variety of habitats including the edges of lakes, ponds, reservoirs, rivers, ditches, canals and backwaters. It also occurs in reedswamps and tall-herb fens, and readily colonises sand-, gravel-, clay- and marl-pits. It is shade-tolerant, and is found in swampy Alnus woods and Salix carr. Reproduction is by seed. Lowland.

Status

Native

World Distribution

Eurosiberian Temperate element; also in E. Asia and N. America.

© K.J. Walker, BSBI

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 7

Moisture (Ellenberg): 9

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 16

Annual Precipitation (mm): 754

Height (cm): 90

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Life Form - secondary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Tussock-forming graminoid, may slowly spread

Count of 10km squares in Great Britain: 672

Count of 10km squares in Ireland: 72

Count of 10km squares in the Channel Isles: 3

Atlas Change Index: -0.27

Weighted Changed Factor: 43

Weighted Change Factor Confidence (90%)

33

JNCC Designations

NBNSYS0000002425