Physical Description


Physical Description

Perennial, Trees, Woody throughout, Nodules present, Stems erect or ascending, Stems greater than 2 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Leaves alternate, Leaves petiolate, Extrafloral nectary glands on petiole, Stipules inconspicuous, absent, or caducous, Stipules deciduous, Stipules free, Leaves compound, Leaves bipinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 4, Leaflets 5-9, Leaves glabrous or nearly so, Inflorescence umbel-like or subumbellate, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Inflorescence terminal, Flowers actinomorphic or somewhat irregular, Calyx 5-lobed, Calyx glabrous, Petals united, valvate, Petals ochroleucous, cream colored, Petals greenish yellow, Stamens numerous, more than 10, Stamens lo ng exserted, Filaments glabrous, Style terete, Fruit a legume, Fruit unilocular, Fruit indehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit or valves persistent on stem, Fruit exserted from calyx, Fruit inflated or turgid, Fruit compressed between seeds, Fruit glabrous or glabrate, Fruit 3-10 seeded, Seed with elliptical line or depression, pleurogram, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database


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Type Information

Isoneotype for Mimosa acle Blanco
Catalog Number: US 904734
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: ; Original publication and alleged type specimen examined
Sex/Stage: ; Flowering
Preparation: Pressed specimen
Collector(s): M. Ramos
Year Collected: 1915
Locality: Bosoboso., Luzon, Rizal, Philippines, Asia-Tropical
Microhabitat: Along streams.
  • Isoneotype: Blanco, F. M. 1837. Fl. Filip. 738.; Nielsen, I. C. 1985. Opera Bot. 81: 46.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections


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Albizia acle

Albizia acle commonly known as akle, acle, or East Indian walnut, is a medium sized tree grown for its strong wood used mainly in the construction of houses and furnitures.


Albizia acle is a medium sized tree attaining a height of 25–30 m and a diameter of 70 to 120 cm. It is a deciduous tree and intolerant to shade. The bole is cylindrical, generally short and crooked, ranging commonly from 40 to 60 cm in diameter and a height of 10 to 8 m.

The leaves are bipinnately compound, usually with one pair of pinnae, each with 3 to 6 pairs of leaflets. The flowers are greenish-white, borne on small, rounded heads.

The trunk has no buttress but has swollen roots. The crown is broadly spreading and open., The bark is dark brown, brittle and creamy white when freshly cut, turning to vermillion or reddish yellow after exposure.

The species has a slow growth rate. A 25 year-old tree attains a growth of approximately 16 m in height and 23 cm in diameter given good site conditions.


Akle is dubbed as the most beautiful of Philippine woods.[1] It is one of the best cabinet timbers of the country on account of its warm-brown color, fine texture and lasting qualities. It is also used for house construction, naval constructions, furniture, sculptures and musical instruments.


Akle is widely distributed in the Philippines. It is found in Albay, Bataan, Bulacan, Camarines Norte, Camarines Sur, Capiz, Cebu, Davao, Ilocos Norte, Masbate, Mindoro Occidental, Negros Oriental, Nueva Ecija, Surigao, Tarlac and Zambales.

It is also found in Indonesia and Celebes.

Site requirement[edit]

Akle grows in all climatic type of the Philippines and in several varieties of soil. It thrives on sandy to clay-loam soil as well as in areas with limestone formation. It is naturally scattered in thin forests to dense stands; from hill tops and mountain ridges to the valleys and river beds and in forests of low and medium altitudes.


  1. ^ Sadie, Vilma D.; Cornejo, Apolinaria T. (June 31, 1990), "Reforestation Species: Akle", Research Information Series on Ecosystems 2 (7): 1–4  Check date values in: |date= (help)
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Source: Wikipedia


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