Silene uniflora

Tracheophyta MagnoliopsidaCaryophyllaceaeSileneSilene uniflora


A perennial herb occurring on rocky sea-cliffs from the lowest zone of vascular plants to cliff-top grassland, on seaside walls, shingle banks and on drift-lines. It can tolerate high levels of nutrient enrichment, and can be abundant on cliff-tops adjoining sea-bird colonies. It also occurs rarely on upland lake shores, streamsides, river shingle, cliffs and in gullies. Artificial habitats include metalliferous mine spoil, disused railway lines, ballast and tips. 0-775 m (Fairfield, Westmorland), and to 970 m in the Scottish Highlands.



World Distribution

Suboceanic Boreo-temperate element.

Broad Habitats

Supralittoral rock (does not include maritime grassland)

Light (Ellenberg): 8

Moisture (Ellenberg): 6

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 4


Salt Tolerance (Ellenberg): 3

January Mean Temperature (Celsius): 4

July Mean Temperature (Celsius): 14.1

Annual Precipitation (mm): 1263

Life form information

Height (cm): 28

Perennation - primary


Life Form - primary




Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 943

Count of 10km squares in Ireland: 236

Count of 10km squares in the Channel Isles: 13

Atlas Change Index: -0.39

Weighted Changed Factor: -15

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 (62b)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1986)
Marsden-Jones EM, Turrill WB
1957.  The Bladder Campions.