It is the sprout of Polygonum hydropiper. Polygonum palmatum is an annual herb with lanceolate leaves, small white or light red flowers, and oval and flat fruits, which grow near or in water. Its stems and leaves are spicy and can be used for seasoning, or the whole grass can be used as medicine, also known as "Polygonum hydropiper". Plants are one of the main forms of life, including trees, shrubs, vines, grass, ferns, green algae, lichens and other familiar creatures
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