Chrysanthemum segetum

Tracheophyta MagnoliopsidaAsteraceaeChrysanthemumChrysanthemum segetum

Ecology

A mainly spring-germinating annual of light, sandy or loamy soils deficient in calcium, found in arable fields and other disturbed habitats, on roadsides, waste ground and rubbish tips. 0-410 m (Eisteddfa Gurig, Cards.).

Status

Archaeophyte

World Distribution

As an archaeophyte C. segetum has a European Southern-temperate distribution; it is widely naturalised outside this range.

© K.J. Walker, BSBI

Broad Habitats

Arable and horticultural (includes orchards, excludes domestic gardens)

Light (Ellenberg): 7

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 5

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 14.8

Annual Precipitation (mm): 1022

Life form information

Height (cm): 60

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: 1682

Count of 10km squares in Ireland: 471

Count of 10km squares in the Channel Isles: 10

Atlas Change Index: -1.8

Weighted Changed Factor: -36

Weighted Change Factor Confidence (90%)

26

Distribution information

JNCC Designations

NBNSYS0000004463

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

Atlas (284c)
Howarth SE, Williams JT
1972.  Biological Flora of the British Isles. No. 127. Chrysanthemum segetum L. Journal of Ecology. 60:573-584.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger EJ
1992.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 3. 2 vols.
Wilson PJ
1991.  Britain’s arable weeds. British Wildlife. 3:149-161.