Geranium pusillum
Tracheophyta
›Magnoliopsida›Geraniaceae›Geranium›Geranium pusillum
Ecology
An annual of cultivated land, open summer-droughted grasslands, roadsides and waste places, thriving in well-drained, sandy soils. Lowland.
Status
Native
Trends
There has been little change in the distribution of this species since the 1962 Atlas, although it is much better recorded now. G. pusillum is an elusive species and, because of its similarity with G. molle, it may have been overlooked in some squares.
World Distribution
Eurosiberian Temperate element; widely naturalised outside its native range.
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Broad Habitats
Boundary and linear features (eg hedges, roadsides, walls)
Light (Ellenberg): 7
Moisture (Ellenberg): 4
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.7
July Mean Temperature (Celsius): 15.6
Annual Precipitation (mm): 784
Height (cm): 40
Perennation - primary
Annual
Life Form - primary
Therophyte (annual land plant)
Woodiness
Herbaceous
Clonality - primary
Little or no vegetative spread
Count of 10km squares in Great Britain: 1237
Count of 10km squares in Ireland: 22
Count of 10km squares in the Channel Isles: 10
Atlas Change Index: 0.16
Weighted Changed Factor: 45
Weighted Change Factor Confidence (90%)
15
JNCC Designations
NBNSYS0000003160