Family: Polygonaceae

Bengali/Vernacular Name: Ban Palang.

English name: Golden Dock, Small Water Dock.

Description of the plant:
An erect annual herb, up to 1.2 m high; stem angled and deeply grooved. Leaves 7.5-25 cm, lanceolate, base narrowed into the petiole. Flowers very small, in axillary whorls, lax or dense, arranged in panicled racemes, leafy to the top.

Using information:
Plant is refrigerant. Leaves are applied to burns. Seeds are aphrodisiac, tonic to the loins; removes pain from the back and lumber region; cures gleet (Yusuf et al. 2009).

Both alcoholic and aqueous extract of the seed at the doses of 100 mg/kg showed significant anti-inflammatory activity in rat paw oedema test compared with Indomethacin (20 mg/kg). The extract also showed marked analgesic activity in mice, compared with acetylsalicylic acid (100 mg/kg) in acetic acid induced writhing test (Hamid et al., 2007). The alcoholic extract has antifungal activity against Trichophyton mentagrophytes and Microsporum canis. Hexane and butanol extracts have been reported to exhibit enhanced antifungal activity (Abdullah et al., 2007).


Chemical constituents:
Seeds contain 5.1% tannin (Chopra et. al., 1992). Rumarin, rutin and hyperin have been isolated from fruits (Rastogi & Mehrotra, 1993). Seeds contain anthraquinones, flavonoids and sterols. Three new aliphatic compounds have been isolated and characterized as n-dotriaconta-3-one; n-heptacos-18,20,22-trien-1ol and 22-hexyl-12-(α-tetradecahydroanthracenyl)-undecan-3-ol-1-oic (Abdullah et al., 2007).

All over the country in marshy places.

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Retutn to Medicinal Plants: Part Q-R