Saxifraga granulata
Ecology
A perennial herb with a bulbiliferous rhizome, growing in moist but well-drained, often lightly grazed, base-rich and neutral grassland, in unimproved pastures and hay meadows, and on grassy banks. More rarely, it occurs on shaded river banks and in damp woodland. It is also locally naturalised near houses and in churchyards. Generally lowland, but reaching 580 m N.E. of Helbeck Fell (Westmorland).
Status
Trends
S. granulata has been lost from many sites in S. England since the 1962 Atlas, as grasslands have been improved. Naturalised populations include a double-flowered cultivar.
World Distribution
European Temperate element.
Broad Habitats
Light (Ellenberg): 8
Moisture (Ellenberg): 5
Reaction (Ellenberg): 6
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.1
July Mean Temperature (Celsius): 15.1
Annual Precipitation (mm): 853
Height (cm): 36
Perennation - primary
Life Form - primary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 975
Count of 10km squares in Ireland: 6
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -0.26
Weighted Changed Factor: -40
Weighted Change Factor Confidence (90%)
JNCC Designations
Atlas text references
Atlas (137c)
.
1988. The Irish Red Data Book. 1. Vascular Plants.
.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1999)
.
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
.
1989. Saxifrages of Europe.
Comment on Life Form