Giant Knotweed

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Also known as Polygonum sachalinense. It is native to northeastern Asia and northern Japan. The flowers are a greenish-yellow color, with long-pointed ovate leaves.

Keywords

flowers, flower, giant, polygonum, knotweed, giant knotweed, polygonum sachalinense, sachalinense

Galleries

Flowers and Shrubs: I-K

Source

Nicholson, George The Illustrated Dictionary of Gardening, Div. VI (London, England: L. Upcott Gill, 1884)

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