Photographs: Bandon, Co.Cork |
Giant Knotweed Panicles of greenish-white flowers, but infrequently flowering. Very large leaves, heart-shaped, pointed. Very stout reddish-brown stems. Height: To 3 m+. Taller but less vigorous than Japanese Knotweed. Waste ground, roadsides, river banks. Garden escape. Less widespread than Japanese Knotweed with which it can hybridise. |
Photographs above: Bandon, Co.Cork. August 2007