Carex chordorrhiza

Tracheophyta MagnoliopsidaCyperaceaeCarexCarex chordorrhiza


This rhizomatous perennial herb is found in fens and base-poor mires, where it usually grows in standing water. Propagation appears to be mainly vegetative by long trailing runners, although genetic variation within its populations suggests that it also reproduces by seed. Lowland.



World Distribution

Circumpolar Boreo-arctic Montane element, with a continental distribution in W. Europe.

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 9

Moisture (Ellenberg): 9

Reaction (Ellenberg): 4

Nitrogen (Ellenberg): 3


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 1.4

July Mean Temperature (Celsius): 11.9

Annual Precipitation (mm): 1176

Life form information

Height (cm): 40

Perennation - primary


Life Form - primary




Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 4

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Distribution information

Plantatt Conservation Status


JNCC Designations


PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.