Cirsium tuberosum

Tracheophyta MagnoliopsidaAsteraceaeCirsiumCirsium tuberosum

Ecology

A perennial herb of old chalk and limestone grassland, often on slopes with a N. or N.W. aspect, and sometimes occurring in rank swards. It spreads by producing axillary basal rosettes to form clonal patches, and also reproduces by seed. Lowland.

Status

Native

World Distribution

Suboceanic Southern-temperate element.

© K.J. Walker, BSBI

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 8

Moisture (Ellenberg): 6

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 3

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.9

July Mean Temperature (Celsius): 16.1

Annual Precipitation (mm): 882

Life form information

Height (cm): 80

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Comment on Life Form

hemicryptophyte with tuberous roots; comparable to Oenanthe pimpinelloides

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 17

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 0.41

Distribution information

Plantatt Conservation Status

Vulnerable

JNCC Designations

NBNSYS0000004497

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.