Cochlearia danica

Tracheophyta MagnoliopsidaCruciferaeCochleariaCochlearia danica


A winter-annual of cliff-tops, sand dunes and sea-walls, and on old walls and pavements in coastal towns; generally preferring open ground on well-drained sandy soils or bare rock. It used to occur on railway ballast, and is now frequent along inland roadsides. Lowland, but above 300 m on roadsides in N. England.



World Distribution

Oceanic Temperate element.

Broad Habitats

Light (Ellenberg): 9

Moisture (Ellenberg): 6

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 5


Salt Tolerance (Ellenberg): 4

January Mean Temperature (Celsius): 4.5

July Mean Temperature (Celsius): 14.9

Annual Precipitation (mm): 1056

Life form information

Height (cm): 25

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 588

Count of 10km squares in Ireland: 138

Count of 10km squares in the Channel Isles: 14

Atlas Change Index: 3.31

Weighted Changed Factor: 76

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.