Asperula cynanchica

Tracheophyta MagnoliopsidaRubiaceaeAsperulaAsperula cynanchica


A rhizomatous perennial herb of dry, calcareous grasslands and sand dunes. 0-305 m (Burren, Co. Clare).



World Distribution

European Temperate element.

© P. Shannon

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 7

Moisture (Ellenberg): 3

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 2


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4

July Mean Temperature (Celsius): 15.9

Annual Precipitation (mm): 842

Life form information

Height (cm): 50

Perennation - primary


Life Form - primary




Clonality - primary

Rhizome far-creeping

Distribution information

Count of 10km squares in Great Britain: 329

Count of 10km squares in Ireland: 47

Count of 10km squares in the Channel Isles: 3

Atlas Change Index: -0.47

Weighted Changed Factor: -21

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 (259c)
de Bolòs O, Vigo J
1995.  Flora dels Països Catalans, III. Pirolàcies-Compostes.
Tutin TG, Chater AO
1974.  Asperula occidentalis Rouy in the British Isles. Watsonia. 10:170-171.