Carex arenaria

Tracheophyta MagnoliopsidaCyperaceaeCarexCarex arenaria

Ecology

A rhizomatous perennial herb of sandy habitats, where it can be a dominant plant of fixed dunes, dune-slacks, sandy flats and on tracksides or other ruderal habitats. Though predominantly coastal, it can be locally common on dunes and heaths inland, particularly on the Lincolnshire coversands and in Breckland. It can be a rapid coloniser, spreading by far-creeping rhizomes. It is occasionally found as an alien on railway clinker. Lowland.

Status

Native

World Distribution

European Temperate element.

© P. Shannon

Broad Habitats

Supralittoral sediment (strandlines, shingle, coastal dunes)

Light (Ellenberg): 8

Moisture (Ellenberg): 3

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 2

Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 4.3

July Mean Temperature (Celsius): 14.7

Annual Precipitation (mm): 1063

Height (cm): 40

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 700

Count of 10km squares in Ireland: 186

Count of 10km squares in the Channel Isles: 13

Atlas Change Index: -0.27

Weighted Changed Factor: 8

Weighted Change Factor Confidence (90%)

26

JNCC Designations

NHMSYS0000352601