Photo: Fallopia japonica 5.

Leaf and flower. Annala, Helsinki, Finland. Wild. 2004-10-10.
Fallopia japonica (Houtt.) Ronse Decr. Engl.: Japanese knotweed, Mexican-bamboo. Deu.: Japan-Staudenknöterich. Suom.: japanintatar. Sven.: parkslide, rosenslide. Jap.: itadori. TCM: huzhang. Bot. syn.: Pleuropterus cuspidatus (Sieb. & Zucc.) Moldenke, Pleuropterus zuccarinii (Small) Small, Polygonum compactum Hook. f., Polygonum cuspidatum Sieb. & Zucc., Reynoutria japonica Houtt.
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Photo: Fallopia japonica 5.