Galium boreale
Tracheophyta
›Magnoliopsida›Rubiaceae›Galium›Galium boreale
Ecology
A perennial herb of damp, usually base-enriched substrates, occurring in rocky places, on mountain ledges and screes, in base-rich flushes in montane grassland, on river shingle and stony lake shores, and on stabilised sand dunes. 0-1065 m (Ben Lawers, Mid Perth).
Status
Native
Trends
The distribution of this species is little changed in Scotland, but it seems to have declined in England, particularly since 1970, where increased grazing pressure may be causing losses (Halliday, 1997). It is better recorded now than it was for the 1962 Atlas, especially in N. Ireland.
World Distribution
Circumpolar Boreo-temperate element.
© K.J. Walker, BSBI
Saur Hill
© K.J. Walker, BSBI
Broad Habitats
Light (Ellenberg): 7
Moisture (Ellenberg): 5
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 3
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 2.2
July Mean Temperature (Celsius): 12.8
Annual Precipitation (mm): 1580
Height (cm): 45
Perennation - primary
Perennial
Life Form - primary
Hemicryptophyte
Woodiness
Herbaceous
Clonality - primary
Rhizome far-creeping
Count of 10km squares in Great Britain: 561
Count of 10km squares in Ireland: 101
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -0.52
Weighted Changed Factor: -17
Weighted Change Factor Confidence (90%)
26
JNCC Designations
NBNSYS0000004307
Comment on Clonality