Smyrnium olusatrum

Tracheophyta MagnoliopsidaUmbelliferaeSmyrniumSmyrnium olusatrum


A robust perennial herb naturalised in hedge banks, on cliffs, at the base of walls, and on grassy roadsides, pathsides and waste ground, mainly near the sea. Lowland.



World Distribution

Native of the Mediterranean region and S. Europe, north to N.W. France.

Broad Habitats

Boundary and linear features (eg hedges, roadsides, walls)

Light (Ellenberg): 7

Moisture (Ellenberg): 5

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 7


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.4

July Mean Temperature (Celsius): 15.5

Annual Precipitation (mm): 907

Life form information

Height (cm): 150

Perennation - primary

Biennial, including monocarpic perennials

Life Form - primary




Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 803

Count of 10km squares in Ireland: 327

Count of 10km squares in the Channel Isles: 13

Atlas Change Index: 0.66

Weighted Changed Factor: 27

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