Polygonum cuspidatum is a large, herbaceous perennial plant native to East Asia but has since spread to many other parts of the world. It grows rapidly, often considered invasive in some areas, and ...

India (region unspecified): used as a pot-herb in times of scarcity. Chemical composition: Water = 76.82% (fresh). Fat = 3.16% (dry). Albumenoids = 18.28% (dry). Carbohydrates = 40.00% (dry). Fibre = ...

China: roots are washed, sliced with a bamboo knife, soaked overnight, boiled in changes of water to remove the bitter principle, washed again, steamed, re-boiled and then eaten. The flowers are also ...

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