Geranium rotundifolium

Tracheophyta MagnoliopsidaGeraniaceaeGeraniumGeranium rotundifolium


An annual of hedgerows, dry roadside-banks and wall-tops, especially close to the sea, but spreading to roadside verges, rubble heaps, railway ballast and waste ground. It is also a garden and street weed. Colonies may be very persistent, even where the species is confined to weedy habitats. Lowland.



World Distribution

Eurosiberian Southern-temperate element; widely naturalised outside its native range.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 4

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.2

July Mean Temperature (Celsius): 16.2

Annual Precipitation (mm): 810

Height (cm): 40

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 446

Count of 10km squares in Ireland: 25

Count of 10km squares in the Channel Isles: 9

Atlas Change Index: 1.7

Weighted Changed Factor: 65

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (93a)
Curtis TGF, McGough HN
1988.  The Irish Red Data Book. 1. Vascular Plants.
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.