Irish wildflowers sitemap
Photographs: Reenaree, Co.Cork 
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Himalayan Knotweed White or pinkish-white flowers in loose panicles. Narrow-ovate to lanceolate leaves, sometimes hairy on underside. Forms thickets, spreads by means of rhizomes. Invasive. Height: to 1.5m Increasingly found on roadsides, river banks, waste ground. Similar: Giant Knotweed, Fallopia sachalinensis. To 3m, greenish-white flowers. 
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Photographs above: Reenaree, Co.Cork. October 2006
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