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.
Bengali/Vernacular Name: Punnag, Sultana champa, Katchampa, Panial; Punyal, Puinnal, (Noakhali); Golab (Barisal, Sunderbans).
Tribal Name: Thyklii-wing (Khumi)
English Name: Alexandrian Laurel, Dilo oil tree.
Description of the Plant:
A medium-sized, evergreen, tree, with crooked trunk. Leaves 10-18 cm long, broadly elliptic, rounded at apex with very close lateral nerves. Flowers pure white, in lax, few-flowered racemes, 10-15 cm long. Fruit globose, 2.5-3.8 cm across.
Bark is astringent; pounded bark is used topically in orchitis; useful in internal haemorrhages, and its juice is used as purgative. Decoction of the bark is employed as a lotion for indolent ulcers. The gum resin is considered emetic, purgative, vulnerary, resolvent and anodyne; applied to ulcers and wounds. Leaves are applied to sore eyes. Seed oil is highly esteemed external application in rheumatism; it is a reputed antipsoric; used in gonorrhoea, gleet and scabies. Leaf contains hydrocyanic acid, which is poisonous to fish.
EtOH(50%) extract of the aerial parts is spasmolytic and CNS depressant (Asolkar et al., 1992).
Leaves contain amentoflavone, friedelin, the triterpenes, canophyllal, canophyllol and canophyllic acid and derivatives of (+) - inophyllolide, called isophyllum A-E and P. Heartwood contains xanthones such as calophyllin, measuaxanthone and jacareubin; calanolide and other coumarin derivatives, calophyllolide, isophyllum A-E and P, calophyllic acid and isocalophyllic acid. Barks yield resin, which contains brasiliensic and isophylloidic acids. Seeds contain coumarins, alkylcoumarin and calophynic acid.
The root bark also contains a number of xanthones. The seed coat hard testa contains (±)-leucocyanidin. Calophyllolide, a complex coumarin have been isolated from the nuts which is antiarrhythmic (as effective as quinidine), bradicardiac, coronary dilator, hypertensive and anticoagulant, anti-inflammatory and anti-arthritic (Ghani, 2003).
Coastal forests of the country, especially Noakhali, Bhola, Sandwip and Patuakhali.