Trifolium arvense

Tracheophyta MagnoliopsidaFabaceaeTrifoliumTrifolium arvense

Ecology

An annual of open rocky or sandy habitats, such as acidic heathlands, sea-cliffs and sand dunes; also on railway ballast and waste ground inland and in disturbed grassland and set-aside fields on light, sandy soils. Lowland.

Status

Native

World Distribution

Eurosiberian Southern-temperate element; widely naturalised outside its native range.

Broad Habitats

Acid grassland (includes non-calcareous sandy grassland)

Light (Ellenberg): 9

Moisture (Ellenberg): 3

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 2

1

Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 15.5

Annual Precipitation (mm): 841

Life form information

Height (cm): 20

Perennation - primary

Annual

Life Form - primary

Therophyte (annual land plant)

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 1205

Count of 10km squares in Ireland: 56

Count of 10km squares in the Channel Isles: 14

Atlas Change Index: -0.01

Weighted Changed Factor: -34

Weighted Change Factor Confidence (90%)

28

Distribution information

JNCC Designations

NBNSYS0000003238

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