Calamagrostis epigejos

Tracheophyta MagnoliopsidaPoaceaeCalamagrostisCalamagrostis epigejos


A tufted rhizomatous perennial, occurring in damp woods, ditches, fens, ungrazed or lightly grazed grasslands, and on sheltered sea-cliffs and sand dunes; also as a colonist of artificial habitats such as old quarries, roadsides and railway banks. It usually grows on light sands or heavy clays. 0-370 m (Great Asby, Westmorland).



World Distribution

Eurasian Boreo-temperate element.

© S. Hammonds

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 7

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 6


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15.7

Annual Precipitation (mm): 812

Life form information

Height (cm): 200

Perennation - primary


Life Form - primary




Clonality - primary

Rhizome far-creeping

Distribution information

Count of 10km squares in Great Britain: 936

Count of 10km squares in Ireland: 9

Count of 10km squares in the Channel Isles: 4

Atlas Change Index: 0.47

Weighted Changed Factor: -9

Weighted Change Factor Confidence (90%)


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.

Atlas text references