Arbutus unedo

Tracheophyta MagnoliopsidaEricaceaeArbutusArbutus unedo

Ecology

A small tree found as a native in heathy scrub and open woodland on rocky slopes and lake shores, on limestone, conglomerate, slates and sandstones; typically on very shallow soil, or rooted into rock. It also occurs as an escape from cultivation, and has become invasive at the Great Orme (Caerns.) and possibly elsewhere. Reproduction is by seed. Lowland.

Status

Native

World Distribution

Mediterranean-Atlantic element.

© P. Shannon

Broad Habitats

Light (Ellenberg): 6

Moisture (Ellenberg): 5

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 2

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.7

July Mean Temperature (Celsius): 14.4

Annual Precipitation (mm): 1335

Height (cm): 500

Perennation - primary

Perennial

Life Form - primary

Mega-, meso- and microphanerophyte

Woodiness

Woody

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 0

Count of 10km squares in Ireland: 8

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 1.18

JNCC Designations

NBNSYS0000003899

Atlas text references

Atlas (193c)
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.
Sealy JR, Webb DA
1950.  Biological Flora of the British Isles. No. 30. Arbutus L., Arbutus unedo L. Journal of Ecology. 38:223-236.