Gentianella amarella

Tracheophyta MagnoliopsidaGentianaceaeGentianellaGentianella amarella


An annual or biennial herb of well-drained basic soils, typically occurring in grazed chalk and limestone grassland, on calcareous dunes and machair, on spoil-tips and in cuttings and quarries. Mainly lowland, ascending to 750 m (Knock Fell, Westmorland).



World Distribution

Circumpolar Boreo-temperate element.

© P. Shannon

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 8

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 2


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.5

July Mean Temperature (Celsius): 14.9

Annual Precipitation (mm): 932

Life form information

Height (cm): 30

Perennation - primary

Biennial, including monocarpic perennials

Life Form - primary




Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 884

Count of 10km squares in Ireland: 132

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.75

Weighted Changed Factor: -32

Weighted Change Factor Confidence (90%)


Distribution information

JNCC Designations


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

Atlas (209d)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.