Moench.Family: Polygonaceae.
Habitat: Native to Central Asia; now grown as minor grain-crop in hilly regions of North India and the Nilgiris.
English: Buckwheat.Ayurvedic: Kotu.Folk: Kutu, Phaapar.Action: Used for treating fragile capillaries, chilbains and for strengthening varicose veins. Used at a supporting herb for treating high blood pressure. Rutin is obtained from fresh or dried leaves and flowers. (Rutin is used in a variety of haemorrhagic conditions.)
The seed are commonly used in colic, choleraic diarrhoea and abdominal obstructions. Root decoction is used in rheumatic pains, lung diseases and typhoid; juice in urinary disorders. In China, used in pulmonary sepsis.The plant is used as a venous and capillary tonic, and for alleviating venous stasis and vericose veins.It is a potential source of rutin (yield 3-5%). The leaves and blossoms contain most of the rutin (80-90%).Quercetin caused significant decrease in ulcer index in acute gastric ulcer with respect to control group in rats. Quercetin, rutin or kaempferol inhibited, in dose-dependent manner, gastric damage produced by acidified- ethanol in rats.The plant also gave hyperoside and anthracene derivatives.Buckwheat is a good source of lysine and other amino acids. The flour is reported to repress exogenous hy- percholesterolemia and promotes accumulation of triglyceride in the liver of rats.Seed oil exhibits antimicrobial activity against Bacillus anthrasis, E.coli and Salmonella paratyphi.Whole plant, dried or green, can cause photosensitization.