origin: growing in swamp ,pond, ditch,river,and estuary in Hulunbuir in Inner Mongolia and Tahe in DaXingAnLing in Heilongjiang province. Chemical ingredient : leaves contain (rutin),peltatoside, -vicianosyl-3-quercetin).the whole plant and flowder contain trace level alkaloid,root contain a little alkaloid. Package type: Vacuum plastic bags,2.5kg/bags,10kg/carton,20kg/carton, 25kg/carton.
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