Polygonum orientale L.
Family : Polygonaceae
Local name : Bihlongoni (As.)
Tall erect branching annual herb, usually pubescent or silky villous; stem robust, grooved, branches hollow; leaves long, ovate or ovate-cordate, acuminate; inflorescence racemes, laxly panicled, cylindric, erect or drooping; flowers large; nutlets orbicular, compressed, with rounded margins and rather concave faces, black and shining when ripe.
Distribution : Common throughout the state in open and waste places.
Uses : Roots used in headache; leaves used in skin diseases.
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