Picris hieracioides

Tracheophyta MagnoliopsidaAsteraceaePicrisPicris hieracioides

Ecology

A biennial or perennial herb, mainly of calcareous soils, occurring in the less heavily grazed swards in chalk and limestone grassland, on roadsides and railway banks, and in quarries and lime-pits. It is intolerant of heavy grazing and is a poor competitor in dense vegetation. Lowland.

Status

Native

World Distribution

Eurasian Temperate element.

© G. Toone, IWNHAS

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 8

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 3

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 16

Annual Precipitation (mm): 781

Height (cm): 95

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 885

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 8

Atlas Change Index: -0.06

Weighted Changed Factor: 14

Weighted Change Factor Confidence (90%)

28

JNCC Designations

NBNSYS0000004526