Laurus nobilis L.

Sweet bay (en), Laurier-sauce (fr), Laurier noble (fr)

Species

Angiosperms > Laurales > Lauraceae > Laurus

Characteristics

Evergreen shrublike or small trees, up to 12 m tall, dioecious. Bark blackish brown. Branchlets terete, striate, puberulent on young part or wholly subglabrous. Leaves alternate; petiole purple-red when fresh, 0.7-1 cm, sparsely puberulent or subglabrous, sulcate adaxially; leaf blade greenish abaxially, dark green adaxially, oblong or oblong-lanceolate, 5.5-12 × 1.8-3.2 cm, leathery, glabrous on both surfaces, lateral veins 10-12 pairs, curved and interconnected at ends near leaf margin, midrib elevated on both surfaces, reticulate veinlets ± conspicuous on both surfaces, foveolate, base cuneate, margin slightly undulate, apex acute or acuminate. Umbels 1-3 in cluster on short raceme, globose; involucral bracts suborbicular, glabrous outside, sericeous inside; peduncle up to 7 mm, sparsely puberulent or subglabrous. Male flowers 5 in each umbel, green, small; pedicels ca. 2 mm, pilose; perianth tube short, densely pilose outside; perianth lobes 4, broadly obovate or suborbicular, appressed villous on both surfaces; fertile stamens usually 12, in 3 whorls; filaments of 1st whorl eglandular but those of 2nd and 3rd whorls each with 2 reniform glands at middle part; anthers ellipsoid, 2-celled, cells introrse; ovary infertile. Female flowers: staminodes 4; ovary 1-celled; style short; stigma slightly dilated, obtusely trigonous. Fruit dark purple when mature, ovoid. Fl. Mar-May, fr. Jun-Sep.
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Shrub or small tree to 12 m high (sometimes taller), evergreen, dioecious; bark blackish brown; branchlets puberulent to glabrous. Leaves alternate, aromatic when crushed; lamina ± oblong, oblong-lanceolate, narrowly oblong-elliptic or narrowly elliptic to lanceolate (some leaves on plant may be broadly elliptic-ovate), (4–) 5–13 cm long, (1.5–) 2–4 (–6.8) cm wide, cuneate at base, entire, sometimes undulate margin, acute to acuminate at apex, leathery, glabrous, upper surface slightly darker than lower; petiole 0.5–1.3 cm long, often purplish red. Inflorescence globose; involucral bracts suborbicular to ± broadly ovate, outer surface glabrous; flowers c. 6–10 mm diam., white to cream, pale yellow, pale yellow-green, light green or greenish white, sometimes pinkish-tinged, sweetly-scented. Perianth segments 4, broadly obovate to suborbicular; male flowers with c. 12 stamens in 3 whorls, the inner 2 whorls with glands, the outer whorl eglandular; female flowers with c. 4 staminodes. Fruit ovoid to ellipsoid, occasionally obloid-ellipsoid, c. 10–16 mm long, 10–14 mm wide, dark purplish to black, shiny, 1-seeded.
Capable of becoming a much branched evergreen up to 18 m. tall (mostly 7-12) it is usually kept low if used for providing leaves for flavouring; it can, however, be a handsome ornamental tree.. Leaves alternate, elliptic to oblong-lanceolate, 4-10 cm. long, 1.5-6 cm. wide, obtuse or acute at the apex, cuneate to rounded at the base, pinnately veined, glabrous, entire or faintly undulate, very aromatic.. Flowers unisexual, small, yellowish or yellow-green, in axillary umbel-like inflorescences supported by small involucres.. Fruits black, ovoid-ellipsoid, 1-1.8 cm. long, 0.8-1 cm. wide.
Large shrub or small tree to c. 7 m with many smooth trunks; vegetative parts glabrous or nearly so. Lvs aromatic; petioles 5-13 mm long, often purplish. Lamina 4-13 × 1.5-4.5 cm, narrow-elliptic or elliptic, shining above; base cuneate; apex acute, cuspidate or acuminate. Umbels in upper lf axils; peduncles c. 5 mm long, glabrous or puberulent. Involucral bracts c. 5 mm long, strongly imbricate, glabrous or puberulent. Pedicels ± puberulent. Perianth 3-4 mm long, cream or whitish. ♂ fls with 8-12 stamens. Berry 1.3-1.5 × 0.6-1.3 cm, narrow-to broad-ellipsoid, glossy black.
An evergreen tree which grows 10-20 m high. It spreads to 2.5-5 m wide. The bark is smooth and grey. The leaves are alternate. The leaves are oval and shiny and dark green. They are 3-6 cm long. The leaves have wavy edges and are leathery. The flowers are small and yellowish green. Male and female flowers are on separate plants. The fruit are one seeded dark berries. They are 1 cm long.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination entomogamy
Spread endozoochory
Mature width (meter) 2.5 - 5.0
Mature height (meter) 10.0 - 12.0
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 suits Mediterranean climates with hot dry summers and cool, wet winters. It needs full sunlight in cooler places but some shade in tropical places. It needs a rich well drained soil. It can tolerate dry conditions. In Melbourne Botanical Gardens. In Hobart Botanical gardens. It can handle light frosts. It can stand temperatures down to-15°C. It suits hardiness zones 8-11. Wittunga Botanical Gardens. In Sichuan and Yunnan. Arboretum Tasmania.
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Naturalised records from Mountain Ash (Eucalyptus regnans) forest, disturbed Eucalyptus regnans/E. viminalis forest, and associated with other weeds in a disturbed road reserve with Eucalyptus camaldulensis.
Damp rocks and ravines, thickets and old walls.
Damp rocks and ravines, thickets and old walls.
Light 5-8
Soil humidity 3-7
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 7-9

Usage

Bay leaves are commonly used as a culinary spice, and the species is used in herbal medicine. The Bay Tree or Bay Laurel is cultivated as an ornamental, pot, hedge or topiary plant, and as a practical spice plant in gardens. Includes a number of cultivars. See e.g. Rodd (1996), Spencer (1997). The dried leaves have been used to repel insect pests from food stores, and essential oil from the fruit is used in soap making (Fern 2021). The plant has mythical and symbolic associations, e.g. in classical Greece Laurus nobils was dedicated to the god Apollo, and the leaves were used in wreaths to honour heroes and poets (Ipor & Oyen 2016).
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Leaves are used raw or dried as flavouring in soups, stews and sauces. They are also used in stuffings and gravies. The dried fruit and leaf oil are also used for flavouring. Dried leaves are brewed into a herbal tea. CAUTION: The berries are poisonous.
Uses afforestation environmental use essential oil food food additive material medicinal non-vertebrate poison oil ornamental poison seasoning social use spice tea wood
Edible fruits leaves
Therapeutic use Diarrhea (fruit), Edema (fruit), Leukorrhea (fruit), Menstruation-inducing agents (fruit), Antifungal agents (leaf), Anti-infective agents, local (leaf), Cholagogues and choleretics (leaf), Dandruff (leaf), Gastrointestinal agents (leaf), Hypnotics and sedatives (leaf), Hypoglycemic agents (leaf), Menstruation-inducing agents (leaf), Obesity (leaf), Pharyngitis (leaf), Diaphoretic (leaf), Carminative (unspecified), Colic (unspecified), Diuretic (unspecified), Emetic (unspecified), Emmenagogue (unspecified), Hysteria (unspecified), Nervine (unspecified), Spasm (unspecified), Sprain (unspecified), Stimulant (unspecified), Stomachic (unspecified), Wen (unspecified), Amenorrhea (unspecified), Sudorific (unspecified), Apertif (unspecified), Bitter-Principle (unspecified), Sclerosis(Liver) (unspecified), Soap (unspecified), Medicine (Veterinary) (unspecified), Narcotic (unspecified), Anti-bacterial agents (unspecified), Antirheumatic agents (unspecified), Tinea pedis (unspecified), Antifungal agents (whole plant)
Human toxicity allergenic (leaf), allergenic (fruit)
Animal toxicity -

Cultivation

Plants are difficult to grow from seed. Fresh green shoots or tip cuttings are best for growing new plants. An 8 cm cutting from a mature plant should be used and some leaves removed. Dipping the root in root hormone will help. Cuttings may take 9 months to root and be ready for transplanting. Plants can also be grown by layering and by using suckers from the base. Plants can be pruned into a hedge.
Mode cuttings seedlings
Germination duration (days) 40 - 90
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -12
Optimum temperature (C°) 17 - 25
Size -
Vigor -
Productivity -

Images

Habit

Laurus nobilis habit picture by coralie ulysse (cc-by-sa)
Laurus nobilis habit picture by Jean-René Girardeau (cc-by-sa)
Laurus nobilis habit picture by Nathalie Potel (cc-by-sa)

Leaf

Laurus nobilis leaf picture by Jonathan Minchin (cc-by-sa)
Laurus nobilis leaf picture by gaetan cacho (cc-by-sa)
Laurus nobilis leaf picture by dingoda (cc-by-sa)

Flower

Laurus nobilis flower picture by roberto (cc-by-sa)
Laurus nobilis flower picture by Lorenzo Golser (cc-by-sa)
Laurus nobilis flower picture by Santoyo Javier (cc-by-sa)

Fruit

Laurus nobilis fruit picture by Pep Secem (cc-by-sa)
Laurus nobilis fruit picture by F Beran (cc-by-sa)
Laurus nobilis fruit picture by Pereira Jorge (cc-by-sa)

Distribution

Laurus nobilis world distribution map, present in Australia, Bulgaria, Bosnia and Herzegovina, Bolivia (Plurinational State of), Brazil, China, Cyprus, Algeria, Spain, France, Georgia, Gibraltar, Greece, Croatia, India, Israel, Italy, Lebanon, Libya, Morocco, North Macedonia, Malta, Montenegro, New Zealand, Pakistan, Korea (Democratic People's Republic of), Portugal, Serbia, Slovenia, Syrian Arab Republic, Tunisia, Turkey, Taiwan, Province of China, Ukraine, United States of America, Viet Nam, and South Africa

Conservation status

Laurus nobilis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:465049-1
WFO ID wfo-0000364153
COL ID 3SN47
BDTFX ID 38070
INPN ID 105295
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Laurus tenuifolia Laurus nobilis Laurus undulata Laurus angusta