Carex atrofusca

Tracheophyta MagnoliopsidaCyperaceaeCarexCarex atrofusca


This perennial herb grows in stony, calcareous, usually micaceous flushes (especially at the point of emergence of springs) and bogs, and rarely on wet mountain ledges and crags. It often grows on or amongst grassy tussocks. Formerly recorded below 600 m, it is currently known from five localities between 680 m (Ben Lawers, Mid Perth) and 1000 m (Beinn Heasgarnich, Mid Perth).



World Distribution

Circumpolar Arctic-montane element.

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 9

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 3


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): -0.4

July Mean Temperature (Celsius): 11.2

Annual Precipitation (mm): 1917

Life form information

Height (cm): 35

Perennation - primary


Life Form - primary




Clonality - primary

Tussock-forming graminoid, may slowly spread

Count of 10km squares in Great Britain: 5

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.11

Distribution information

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.