Medicinal Plants of Bangladesh
Medicinal Plants Database of Bangladesh includes the authentic Taxonomic Information, Vernacular/Bangla Name, Tribal and English Name, Family, Description and Photograph of the Plants, Chemical Constituents, Uses and Distribution of the species in Bangladesh. MPBD also contain dictionary of Botanical and Pharmacological terms.
Synonyms: Acacia lebbeck Willd.
Bengali/Vernacular Name: Sirish; Kala Koroi (Chittagong); Harish, Moroi (Sylhet); Bhut Koroi (Dinajpur-Rangpur).
English name: Parrot Tree, Siris Tree, Sizzling Tree.
A medium-sized to large deciduous tree with spreading crown. Leaves abruptly 2-pinnate, pinnae 4-8, leaflets 8-18. Flowers white, fragrant, in globose umbellate heads. Pods strap-shaped, firm, yellow-brown, 15-30 cm long.
The bark is cooling, alexiteric, anthelmintic, astringent; cures leucoderma, itching, skin diseases, piles, excessive perspiration, inflammation, erysipelas, bronchitis, diarrhoea; relives toothache, strengthens the gums and the teeth. The root is astringent; used for hemicrania, ophthalmia. The flowers are cooling, aphrodisiac, emollient and maturant; given for asthma, externally applied in boils, eruption and swellings; their smell is useful in hemicrania. The leaves are useful in opthalmia and asthma. The seeds are astringent, tonic to the brain; used for gonorrhoea and tubercular glands; the oil is considered useful in leucoderma and leprosy.
EtOH(50%) extract of the pods is antiprotozoal, hypoglycaemic, and anticancer; spermicidal against rat and human spermatozoa at 2% concentration. Bark decoction is active on blood vessels of different animals. Aquous extract decreased histamine-induced bronchospasm in guineapig. Lebbekanin E, from wood exhibited spermicidal activity (Asolkar et al., 1992).
Flowers, pods, seeds and wood of the plant contain saponins, particularly labbeekanins and sapogenins. Bark contains gum, tannins, d-catechin and d-leucocyanidin, friedelanone and ß-sitosterol. Bark also contais friedelan-3-one and ?-sitosterol. Leaves contain echynocystic acid, ß-sitosterol, flavones and vicenin II. Seeds contain a mixture of sapogenins, labbekanins A (major) & B, echynocystic, oleanolic acids, triterpenoid and saponins. The seed oil contains the fatty acids oleic, linoleic, linolenic, arachidic and behemic acids.
Flowers yield triterpenoids, saponin labbekanin D and four saponin glycosides, lebbekanins D, F, G and H. Wood contains saponin lebbekanin E, malanoxetin, d-pinitol, okanin, lucopelargonidin, melacacidin and its 3-Me ether and melanoxetin and its 3-Me ether. Lupeol, oleanolic acid, decosanoic acid, ß-sitosterol and a new acyclic ester have been isolated from the plant. The pods also yield albigenic acid, an isomer of echinosystic acid (Ghani, 2003; Asolkar et al., 1992).
In almost all the districts, both wild and cultivated.