Polygonum aviculare

Tracheophyta MagnoliopsidaPolygonaceaePolygonumPolygonum aviculare


An annual of open and disturbed ground, including arable land, gardens, waste places and seashores. The species remains a significant agricultural weed. 0-550 m (Northumberland), with an exceptional record at 670 m on Great Dun Fell (Westmorland).



World Distribution

Circumpolar Wide-temperate element; widely naturalised outside its native range.

© Shannon, P

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 7


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 14.8

Annual Precipitation (mm): 1039

Life form information

Height (cm): 30

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 2030

Count of 10km squares in Ireland: 819

Count of 10km squares in the Channel Isles: 2

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.