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Japanese Knotweed Video Stock Footage

Japanese knotweed has hollow stems with distinct raised nodes that give it the appearance of bamboo, though it is not related. While stems may reach a maximum height of 3–4 m (9.8–13.1 ft) each growing season, it is typical to see much smaller plants in places where they sprout through cracks in the pavement or are repeatedly cut down. The leaves are broad oval with a truncated base, 7–14 cm (2.8–5.5 in) long and 5–12 cm (2.0–4.7 in) broad, with an entire margin. The flowers are small, cream or white, produced in erect racemes 6–15 cm (2.4–5.9 in) long in late summer and early autumn. Related species include giant knotweed (Reynoutria sachalinensis, syns. Fallopia sachalinensis, Polygonum sachalinense) and Russian vine (Fallopia baldschuanica, Polygonum baldschuanicum).

Learn more about Japanese Knotweed

Plantae: Tracheophyta: Caryophyllales: Magnoliopsida: Polygonaceae: Fallopia japonica

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