Carduus nutans

Tracheophyta MagnoliopsidaAsteraceaeCarduusCarduus nutans

Ecology

This biennial, or sometimes perennial, herb is mainly found on chalk, limestone or lime-enriched soils, but also occurs on sandy or shingly ground. It is found in rough, often overgrazed or recently established pastures, on roadsides and in disturbed places. Generally lowland, but reaching c. 530 m at High Cup Nick (Westmorland).

Status

Native

World Distribution

Eurosiberian Temperate element; widely naturalised outside its native range.

© P. Shannon

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 5

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15.7

Annual Precipitation (mm): 797

Life form information

Height (cm): 100

Perennation - primary

Biennial, including monocarpic perennials

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 1235

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 10

Atlas Change Index: -0.15

Weighted Changed Factor: -6

Weighted Change Factor Confidence (90%)

22

Distribution information

JNCC Designations

NBNSYS0000004486

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 (287d)
Curtis TGF, McGough HN
1988.  The Irish Red Data Book. 1. Vascular Plants.
Desrochers AM, Bain JF, Warwick SI
1988.  The biology of Canadian weeds. 89. Carduus nutans L. and Carduus acanthoides L. Canadian Journal of Plant Science. 68:1053-1068.
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.