Aconogonon weyrichii:

Aconogonon weyrichii (F. Schmidt ex Maxim.) H. Hara. Engl.: white knotweed. Suom.: laavatatar. Sven.: gråslide, grå pilört. Jap.: urajiro-tade. Bot. syn.: Persicaria weyrichii (F. Schmidt ex Maxim.) Ronse Decr., Polygonum weyrichii F. Schmidt ex Maxim.

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