Calystegia sepium
Tracheophyta
›Magnoliopsida›Convolvulaceae›Calystegia›Calystegia sepium
Ecology
A perennial climber, occurring in hedges, scrub, woodland edges, tall-herb fens, in open Salix and Alnus carr, and on railway banks and waste ground. It also occurs in artificial habitats in built-up areas and near habitation. 0?365 m (near Buxton, Derbys.).
Status
Native
Trends
There is no change in the range of this species since the 1962 Atlas. Two subspecies occur in our area: subsp sepium is found throughout the range of the species and subsp. roseata is mapped separately. A third, subsp. spectabilis, was formerly recorded as a garden relic in Merionethshire.
World Distribution
Circumpolar Temperate element.
© S. Hammonds
Notts
© S. Hammonds
Broad Habitats
Light (Ellenberg): 7
Moisture (Ellenberg): 8
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 1
January Mean Temperature (Celsius): 3.8
July Mean Temperature (Celsius): 14.9
Annual Precipitation (mm): 1021
Height (cm): 200
Perennation - primary
Perennial
Life Form - primary
Non-bulbous geophyte (rhizome, corm or tuber)
Woodiness
Herbaceous
Clonality - primary
Rhizome far-creeping
Count of 10km squares in Great Britain: 2175
Count of 10km squares in Ireland: 881
Count of 10km squares in the Channel Isles: 14
Atlas Change Index: 0.69
Weighted Changed Factor: 32
Weighted Change Factor Confidence (90%)
14
JNCC Designations
NHMSYS0000456325
Comment on Clonality