Centaurea calcitrapa

Tracheophyta MagnoliopsidaAsteraceaeCentaureaCentaurea calcitrapa

Ecology

A biennial herb of waste ground and tracksides in dry grassland, and on banks on well-drained sandy, gravelly or light chalky soils. Lowland.

Status

Archaeophyte

World Distribution

Native of the Mediterranean region; widespread as an introduction further north but now declining outside its native range.

Broad Habitats

Boundary and linear features (eg hedges, roadsides, walls)

Light (Ellenberg): 7

Moisture (Ellenberg): 4

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 3

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4

July Mean Temperature (Celsius): 16.1

Annual Precipitation (mm): 744

Life form information

Height (cm): 60

Perennation - primary

Biennial, including monocarpic perennials

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 153

Count of 10km squares in Ireland: 1

Count of 10km squares in the Channel Isles: 3

Atlas Change Index: -2.34

Distribution information

Plantatt Conservation Status

Vulnerable

JNCC Designations

NBNSYS0000004510

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