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: Polygala chinesis L., .Polygala telephioides Willd., Polygala brachystachya DC.
Bengali/Vernacular Name: Meradu, Meraru.
Tribal Name: Yang Mana (Marma).
Description of the Plant:
An annual herb, usually decumbent and diffuse, 10-25 cm high. Leaves very variable, 1.2-3.8 cm long, obovate, sub-orbicular or linear-oblong, rather thick, ciliate, mucronate. Flowers yellow, fading to pink, in axillary or extra-axillary, short, almost capitate, few-flowered racemes. Capsules didymous, orbicular-oblong, strongly ciliate.
Infusion of the leaves is prescribed in asthma, chronic bronchitis and catarrhal affections. The root possesses antiseptic properties; reported to be used for fever and dizziness (Yusuf et al. 2009).
Two new aryl naphthalide lignans – chinensinaphthol and its methyl ether along with lignans – suchilactone, chisulactone and helioxanthion have been isolated from the plant. Aerial parts and roots contain arctigenin-4´-glucoside (arctiin), kaempferol-3-rhamnoside (afzelin) and myricetin-3-rhamnoside. Roots also contain arctgenin-4´-gentiobioside, quercetin-3-rutinoside (rutin), haemolytic terpenoid saponins, senegon and senegin. Presence of monoarylidene butyrolactone and arylnaphthalide lignans, suchilactone and iso-suchilactone has also been reported in this plant (Rastogi & Mehrotra 1993; Ghani, 2003).
Dhaka, Chittagong, and Chittagong Hill Tracts .