A perennial herb of both wet and dry acidic soils found in a wide range of habitats from lowland heaths and Nardus grassland to heather moors, rocky hillsides and mountain summits. Its preferred sites are generally open but it also occurs in shady places, including deciduous and mixed woodlands. It is also occasionally found on coastal cliffs. 0-930 m (Glyder Fach, Caerns.) and reportedly to 975 m in the Scottish Highlands.
This species is common in suitable habitats, and its distribution appears to be stable. It was mapped as `all records` in the 1962 Atlas.
Oceanic Temperate element.
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Light (Ellenberg): 7
Moisture (Ellenberg): 6
Reaction (Ellenberg): 3
Nitrogen (Ellenberg): 2
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.3
July Mean Temperature (Celsius): 14
Annual Precipitation (mm): 1243
Height (cm): 90
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 1927
Count of 10km squares in Ireland: 647
Count of 10km squares in the Channel Isles: 3
Atlas Change Index: -0.17
Weighted Changed Factor: 12
Weighted Change Factor Confidence (90%)
Atlas text references
1962. La flore atlantique européenne. Documents pour les cartes des productions végétales serie Europe-Atlantique, vol. 1.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1982. Sedges of the British Isles. Botanical Society of the British Isles Handbook no. 1, edn 2.