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

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4

July Mean Temperature (Celsius): 16.1

Annual Precipitation (mm): 744

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

Plantatt Conservation Status

Vulnerable

JNCC Designations

NBNSYS0000004510