Cirsium palustre

Tracheophyta MagnoliopsidaAsteraceaeCirsiumCirsium palustre

Ecology

A monocarpic perennial herb of mires, fens, marshes, damp grassland, rush-pastures, wet woodland, montane springs and flushes, and tall-herb vegetation on mountain ledges. It reproduces by seed, which may persist for many years, as, for example, during the dark phase of a coppice cycle. 0-760 m (Cross Fell, Cumberland), and 845 m on Great Dun Fell (Westmorland).

Status

Native

World Distribution

Eurosiberian Boreo-temperate element; widely naturalised outside its native range.

© P. Shannon

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 8

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 4

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.5

July Mean Temperature (Celsius): 14.5

Annual Precipitation (mm): 1105

Height (cm): 175

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: 2697

Count of 10km squares in Ireland: 955

Count of 10km squares in the Channel Isles: 12

Atlas Change Index: 0.15

Weighted Changed Factor: -28

Weighted Change Factor Confidence (90%)

14

JNCC Designations

NBNSYS0000004491