Polygala amarella

Tracheophyta MagnoliopsidaPolygalaceaePolygalaPolygala amarella

Ecology

A perennial herb of base-rich substrates. On the North Downs it is usually found in close-grazed chalk grassland, and in N. England in limestone grassland, on rock ledges and in fissures in limestone scars, and sometimes on damp stream banks and in areas of eroded sugar limestone. Generally lowland, but reaching 530 m on Cronkley Fell (N.W. Yorks.).

Status

Native

World Distribution

European Boreo-temperate element, with a continental distribution in W. Europe.

© K.J. Walker, BSBI

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 9

Moisture (Ellenberg): 6

Reaction (Ellenberg): 9

Nitrogen (Ellenberg): 1

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 2.8

July Mean Temperature (Celsius): 15

Annual Precipitation (mm): 1037

Life form information

Height (cm): 10

Perennation - primary

Perennial

Life Form - primary

Chamaephyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 18

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 1

Atlas Change Index: -0.1

Distribution information

Plantatt Conservation Status

Vulnerable

JNCC Designations

NBNSYS0000002952

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