Common holly (Ilex aquifolium)

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Common holly bush with berries
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Common holly fact file

Common holly description

KingdomPlantae
PhylumAnthophyta
ClassMagnoliopsida
OrderCelastrales
FamilyAquifoliaceae
GenusIlex (1)

With its bright red berries (found only on female plants), and shiny evergreen leaves, the native holly tree (Ilex aquifolium) has been a symbol of midwinter festivals since pre-Christian times (3). The common holly grows as a shrub or tree, and has a narrow, conical crown and smooth silver-greyish bark (2). The fragrant male and female flowers are found on separate trees; they occur in clusters, and are white in colour (2). The dark green holly leaves are spiny, and have a waxy texture (4).

Size
Height: up to 10 m (2)
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Common holly biology

Flowering occurs in May and June (2). Holly berries are a very important source of food for birds during winter (4), and birds assist in the dispersal of holly berries away from the parent tree (3). Holly may also spread by vegetative reproduction, by 'runners'; furthermore, the tips of branches that touch the ground may take root, forming a bower around the trunk of the tree, which may be used by animals (and children) as a shelter (3).

Unsurprisingly there is a rich wealth of folklore and custom surrounding the holly tree (3); the amount of berries produced is used as a means of divining whether there will be a harsh winter. A widespread and firmly held belief around Britain is that it is extremely bad luck to cut down a whole holly tree, although somewhat paradoxically, it is permitted to cut branches to bring into the house during winter (3). This belief has often led to hollies being retained even when the entire hedge to which they once belonged was destroyed. In many farming areas, holly has been given to livestock as winter browse, and this practice continues today. Holly wood was used to make horsewhips for many years, as it was thought to have 'power over horses'. It was also believed to provide protection against fire (3). The most well-known holly-custom, however, is bringing boughs into the house in winter. Originally, holly was a fertility symbol because of the retention of the berries and shiny foliage throughout winter. It was also thought to protect a house from witchcraft and goblins. The pagan tradition of bringing holly indoors was accepted by Christianity; the spines of the leaves symbolising the crown of thorns, and the red berries representing the blood of Christ (3).

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Common holly range

The common holly is widespread and common throughout Britain. The holly is also widespread elsewhere, occurring throughout western and southern Europe and West Asia (2).

You can view distribution information for this species at the National Biodiversity Network Gateway.
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Common holly habitat

As the holly is very shade-tolerant it is able to live as an understory species in woodlands where other trees cannot survive (4); it is especially associated with beech and oak woodlands (2). Pure holly woods are unique to Britain, and are ecologically equivalent to the evergreen cloud forests of South America and China (3).

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Common holly status

The common holly has yet to be assessed by the IUCN.

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Common holly threats

There are no known threats to the common holly.

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Common holly conservation

As the holly is common and widespread, conservation action is not currently considered necessary.

There may be further information about this species available via the National Biodiversity Network Gateway.
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Find out more

For more on the wealth of folklore and tradition centred on the common holly, see:

  •  Flora Britannica by Richard Mabey. Published by Sinclair-Stevenson, London.

For more on British trees see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

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Glossary

Vegetative reproduction
Type of asexual reproduction (reproduction without recombination of genetic material) that results in the propagation of plants using only the vegetative tissues such as leaves or stems. The resulting plant is genetically identical to the original plant. A well-known example of this is the reproduction of strawberry plants from 'runners'.
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References

  1. National Biodiversity Network Species Dictionary (Feb 2003).
    http://www.nhm.ac.uk/nbn/
  2. Humphries. C.J., Press, J.R. & Sutton, D.A. (2000) Hamlyn guide to trees of Britain and Europe. Hamlyn, London.
  3. Mabey, R. (1996) Flora Britannica. Sinclair-Stevenson, London.
  4. Press, B. (1996) Collins Wild Guide: Trees. Harper Collins Publishers, London.
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Image credit

Common holly bush with berries  
Common holly bush with berries

© Bob Gibbons / www.ardea.com

Ardea wildlife pets environment
59 Tranquil Vale
London
SE3 0BS
United Kingdom
Tel: +44 (0) 208 318 1401
ardea@ardea.co.uk
http://www.ardea.com

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