Arabis hirsuta

Tracheophyta MagnoliopsidaCruciferaeArabisArabis hirsuta

Ecology

A biennial or perennial herb growing in dry, sunny, exposed situations on rock outcrops and in grassland on base-rich substrates, particularly chalk and limestone; also occurring on sand dunes and on bridges and walls. 0-1005 m (Aonach Beag, Westerness).

Status

Native

World Distribution

Circumpolar Boreo-temperate element.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 5

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 3

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.3

July Mean Temperature (Celsius): 14.6

Annual Precipitation (mm): 1104

Height (cm): 40

Perennation - primary

Biennial, including monocarpic perennials

Perennation - secondary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 1042

Count of 10km squares in Ireland: 143

Count of 10km squares in the Channel Isles: 4

Atlas Change Index: -1.02

Weighted Changed Factor: -50

Weighted Change Factor Confidence (90%)

29

JNCC Designations

NBNSYS0000002889