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Polygonum polystachyum près Sizun 2010 Detail

Image of knotweed family

Description:

Polygonum polystachyum in Finistère (Britany, W of France). This plant introduced in this country is locally invasive. It is a species of flowering plant in the knotweed family known by the common names Himalayan knotweed and cultivated knotweed.

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Lamiot
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