Ilex aquifolium L.

Holly (en), Houx (fr), Houx à feuille épineuse (fr), Houx commun (fr)

Species

Angiosperms > Aquifoliales > Aquifoliaceae > Ilex

Characteristics

Evergreen shrub or tree to 10 m high, glabrous except for pubescent new growth and short hairs on calyx and occasionally pedicel. Bark grey. Leaves alternate; lamina ovate, elliptic, oblong or ± oblong-elliptic, 3–11 cm long, 2.5–5 cm wide, undulate and spinose-dentate margin, usually with 5–9 teeth, occasionally entire and ± flat on old trees, acute and spine-tipped apex, coriaceous, dark green and glossy above, paler and dull beneath; petiole 5–15 mm long. Flowers in 3-flowered cymes forming many-flowered axillary fascicles, rarely female flowers solitary; pedicels to c. 3 mm long. Flowers 4-or rarely 5-merous. Sepals triangular-ovate, c. 1.5 mm long, free in upper half. Petals elliptic, 2–5 mm long, white or pinkish. Stamens half to as long as corolla; anthers to c. 1.5 mm long. Drupe globose or ovoid, 7–10 mm long, 6–10 mm wide, bright red, of 4 or 5 pyrenes coarsely ribbed on back.
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Evergreen, dioecious, much-branched shrub or small tree up to c. 12 m high. Shoots puberulent when young, becoming glabrous, slightly ridged. Lvs usually puberulent when very young, becoming glabrous, alternate, elliptic, oblong or elliptic-ovate, dark glossy green above, paler below, (3)-5-8-(10) cm long; lf margin somewhat thickened, undulate, usually deeply serrate-spinose, the upper lvs in particular sometimes flat and entire with mucronate apex, but some lvs, especially those of juvenile and vegetative shoots, always spinous; petiole grooved, (3)-5-10-(15) mm long. Fls few to numerous in fascicles or small cymes; calyx teeth 4, broadly triangular, < tube, ciliolate; petals 4, white, 3-5 mm long; staminodes of ♀ fls large; vestigial ovary of ♂ fls much reduced. Fr. globose, bright red, 6-10 mm diam.
An evergreen tree. It grows 15 m high and spreads 4 m wide. The stem is stout. The bark is smooth and grey. The tree crown is pyramid shaped. The leaves are thick and a glossy green. There are stout prickles along the edge. They alternatively point upwards and downwards. The flowers are small and white. They are in the axils of the leaves. The fruit are bright red berries. They are on female plants only.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination entomogamy
Spread endozoochory
Mature width (meter) 4.0 - 5.0
Mature height (meter) 9.0 - 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. It grows best in an acid, sandy or gravelly loam. It needs a protected sunny position. It is resistant to frost and sensitive to drought. In the tropics it is grown at higher altitudes. Arboretum Tasmania.
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Recorded from weedy bushland, eucalypt woodland and forest, moist forest, remnant rainforest, along creeks, roadsides, farmland, old gardens, wasteland and other disturbed sites.
Found in most well-drained soils in scrub, hedges and woodland where it is often the dominant under-storey shrub.
Light 3-8
Soil humidity 2-7
Soil texture 2-5
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 6-8

Usage

Cultivated as an ornamental and hedge plant, with many cultivars (e.g. see Spencer 2002: 448–449), including forms with variegated foliage. Popular Christmas decoration in the northern hemisphere (Rodd 1996: 253) and commonly featured in Christmas cards and other items celebrating the Christmas festive season.
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The leaves have been used as a tea substitute. The red berries are used to make a brandy.
Uses dye environmental use material medicinal ornamental poison seasoning social use tea timber wood
Edible fruits leaves
Therapeutic use Astringents (fruit), Cathartics (fruit), Diarrhea (fruit), Diuretics (fruit), Emetics (fruit), Stupor (fruit), Vomiting (fruit), Antirheumatic agents (leaf), Bronchitis (leaf), Common cold (leaf), Diuretics (leaf), Emollients (leaf), Influenza, human (leaf), Jaundice (leaf), Pleurisy (leaf), Pneumonia (leaf), Smallpox (leaf), Diaphoretic (leaf), Cough Medicine (root), Febrifuge (root), Tuberculosis Remedy (root), Urinary Aid (root), Cancer(Intestine) (unspecified), Diuretic (unspecified), Emetic (unspecified), Emollient (unspecified), Fever (unspecified), Jaundice (unspecified), Malaria (unspecified), Poison (unspecified), Purgative (unspecified), Sudorific (unspecified), Swelling (unspecified), Tumor(Thyroid) (unspecified), Dropsy (unspecified), Cancer(Liver) (unspecified), Cancer(Stomach) (unspecified), Gout (unspecified), Tonic (unspecified), Wart (unspecified), Antineoplastic agents (unspecified), Central nervous system depressants (unspecified)
Human toxicity strong toxic (aerial)
Animal toxicity toxic (aerial)

Cultivation

Plants can be grown from seed. These can take 3-12 months to germinate. They can be grown from woody cuttings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -23
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Ilex aquifolium habit picture by Sabina Hartmann (cc-by-sa)
Ilex aquifolium habit picture by Jean-Marie Frenoux (cc-by-sa)
Ilex aquifolium habit picture by Jean-Marie Frenoux (cc-by-sa)

Leaf

Ilex aquifolium leaf picture by PATRICK PREVOST (cc-by-sa)
Ilex aquifolium leaf picture by Bas Zoetbrood (cc-by-sa)
Ilex aquifolium leaf picture by Olivier Dethier (cc-by-sa)

Flower

Ilex aquifolium flower picture by Barry Cornelius (cc-by-sa)
Ilex aquifolium flower picture by Stéphane Gauthier (cc-by-sa)
Ilex aquifolium flower picture by Llandrich anna (cc-by-sa)

Fruit

Ilex aquifolium fruit picture by Alexis de Courson (cc-by-sa)
Ilex aquifolium fruit picture by Pascal Vassy (cc-by-sa)
Ilex aquifolium fruit picture by David Hocken (cc-by-sa)

Distribution

Ilex aquifolium world distribution map, present in Albania, Andorra, Australia, Austria, Belgium, Bulgaria, Bosnia and Herzegovina, Brazil, Canada, Switzerland, China, Germany, Denmark, Algeria, Spain, France, United Kingdom of Great Britain and Northern Ireland, Greece, Croatia, India, Iran (Islamic Republic of), Italy, Liechtenstein, Luxembourg, Morocco, North Macedonia, Montenegro, Netherlands, Norway, New Zealand, Portugal, Romania, Russian Federation, Serbia, Slovenia, Sweden, Tunisia, United States of America, and South Africa

Conservation status

Ilex aquifolium threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:83051-1
WFO ID wfo-0000729203
COL ID 6N77K
BDTFX ID 35676
INPN ID 103514
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Ilex aquifolium f. aureopicta Aquifolium ferox Aquifolium lanceolatum Aquifolium planifolium Ilex aquifolium Ilex crassifolia Ilex fischeri Aquifolium croceum Aquifolium heterophyllum Aquifolium spinosum Aquifolium undulatum Ilex ciliata Ilex echinata Ilex ferox Ilex nigricans Ilex sempervirens Ilex balearica Ilex heterophylla Aquifolium ilex Aquifolium vulgare Ilex camelliifolia Ilex chrysocarpa Ilex citriocarpa Ilex aquifolium var. barcinonae Ilex aquifolium f. frivaldskyana Ilex aquifolium var. heterophylla Ilex aquifolium var. crassifolia Ilex aquifolium var. recurva Ilex aquifolium var. ferox