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

Height (cm): 28

Perennation - primary


Life Form - primary




Clonality - primary

Little or no vegetative spread

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%)


JNCC Designations


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.