Albizia julibrissin Durazz.

Silktree (en), Albizia (fr), Albizie julibrissin (fr), Arbre à soie (fr), Acacia de Constantinople (fr)

Species

Angiosperms > Fabales > Fabaceae > Albizia

Characteristics

Trees, deciduous, to 16 m tall; crown open. Branchlets angular; branchlet, leaf rachis, and inflorescence tomentose or pubescent. Stipules deciduous, linear-lanceolate, smaller than leaflets; pinnae 4-12 pairs, sometimes to 20 pairs in cultivated species; glands near base of petiole and leaf rachis of uppermost pinnae; leaflets 10-30 pairs, obliquely linear to oblong, 6-12 × 1-4 mm, main vein close to upper margin, base truncate, mar­gin ciliate, apex apiculate. Panicles terminal. Flowers pink. Calyx tubiform, ca. 3 mm, pubescent. Corolla ca. 8 mm; lobes deltoid, ca. 1.5 mm. Filaments pink, ca. 2.5 cm. Legume strap-shaped, flat, 9-15 × 1.5-2.5 cm, glabrous. Fl. May-Jul, fr. Aug-Oct. 2n = 26*.
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A tree which grows up to 12 m tall and spreads to 10 m wide. It loses its leaves during the year. The crown tends to be flat. The bark is dark brown and smooth. The leaves are twice divided. Each primary leaflet has 20-30 pairs of secondary leaflets. These are 1.5 cm long. The leaflets fold together at night. The flowers are in round pink heads. The stamens are long and silky. The fruit are seed pods. They are 15 cm long.
Widely spreading, soft-wooded tree to 10 m; lvs 2–5 dm; pinnae 4–12 pairs, 1–2 dm; lfls 20–30 pairs, oblong, 10–15 mm, mucronate, very inequilateral; fls pink, in long-peduncled heads forming a terminal raceme; cal 2–2.5 mm; cor 5–8 mm; stamens 15 mm; fr 10–15 × 2 cm; 2n=36. Native of tropical Asia, hardy as far n. as s. N.Y., and often escaped from cult. southward. June–Aug.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 2.5 - 4.0
Mature height (meter) 9.05 - 10.0
Root system -
Rooting depth (meter) 0.8
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 to tropical plant. It grows naturally from Iran to China in open sunny ravines, forests and by rivers up to 2100 metres in the Himalayas. It needs a well drained but moist soil but can grow in dry soil. They can tolerate high pH, salty soils, drought and wind. Trees when dormant are hardy to-10°C or in continental climates-20°C. Young growth is frost tender. It suits hardiness zones 6-12. It grows well in places with cool winters and hot summers. Arboretum Tasmania. in Yunnan.
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Open sunny ravines, forests and by rivers up to 2,100 metres in the Himalayas. Usually found in disturbed areas, such as roadsides, vacant lots, and by rivers, occasionally in lightly forested areas.
Open sunny ravines, forests and by rivers up to 2,100 metres in the Himalayas.
Light 7-8
Soil humidity 2-6
Soil texture 1-5
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-10

Usage

The young leaves are cooked and eaten as a potherb. The flowers are eaten as a vegetable. The dried leaves are used as a tea.
Uses animal food bee plant environmental use fixation of sand dunes fodder food forage fuel gum invertebrate food leaf vegetable material medicinal potherb shade tea vertebrate poison wood
Edible flowers fruits leaves seeds
Therapeutic use Diuretics (aerial part), Carbuncle (unspecified), Discutient (unspecified), Fracture (unspecified), Sedative (unspecified), Sprain (unspecified), Stimulant (unspecified), Swelling (unspecified), Tonic (unspecified), Vermifuge (unspecified), Vulnerary (unspecified), Diuretic (unspecified), Cardiovascular system (whole plant excluding root)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed, cuttings or suckers. Seed need to be pre-soaked for 24 hours in hot water. They germinate in 2-3 months at 19°C. Plants can be transplanted. Plants can be pruned and shaped.
Mode cuttings seedlings
Germination duration (days) 30 - 90
Germination temperacture (C°) 20 - 22
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -16
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Albizia julibrissin habit picture by Trap Hers (cc-by-sa)
Albizia julibrissin habit picture by jimseng jimseng (cc-by-sa)

Leaf

Albizia julibrissin leaf picture by Mehmet Basbag (cc-by-sa)
Albizia julibrissin leaf picture by Wyllt Sylvestris (cc-by-sa)
Albizia julibrissin leaf picture by Pier Jackson (cc-by-sa)

Flower

Albizia julibrissin flower picture by Lina Guidi (cc-by-sa)
Albizia julibrissin flower picture by Sandra Stanziani (cc-by-sa)
Albizia julibrissin flower picture by Dogan Corus (cc-by-sa)

Fruit

Albizia julibrissin fruit picture by Villena Rojas Marcelo (cc-by-sa)
Albizia julibrissin fruit picture by Villena Rojas Marcelo (cc-by-sa)
Albizia julibrissin fruit picture by Trap Hers (cc-by-sa)

Distribution

Albizia julibrissin world distribution map, present in Afghanistan, Argentina, Armenia, American Samoa, Azerbaijan, Bangladesh, Brazil, Bhutan, China, Colombia, Cyprus, Indonesia, India, Iran (Islamic Republic of), Iraq, Italy, Jamaica, Japan, Korea (Republic of), Moldova (Republic of), Myanmar, Mauritius, Nepal, New Zealand, Pakistan, Peru, Russian Federation, Tajikistan, Turkmenistan, Turkey, Taiwan, Province of China, Ukraine, Uruguay, United States of America, and Uzbekistan

Identifiers

LSID urn:lsid:ipni.org:names:473275-1
WFO ID wfo-0000173835
COL ID BG7G
BDTFX ID 2441
INPN ID 447347
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Mimosa julibrissin Acacia julibrissin Sericandra julibrissin Feuilleea julibrissin Albizzia julibrissin Mimosa speciosa Albizia julibrissin

Lower taxons

Albizia julibrissin var. mollis Albizia julibrissin var. julibrissin Albizia julibrissin var. rosea