Japanese knotweed facts for kids

Kids Encyclopedia Facts

Quick facts for kids Japanese knotweed

Scientific classification
Synonyms
Fallopia compacta (Hook.f.) G.H.Loos & P.Keil Fallopia japonica (Houtt.) Ronse Decr. Pleuropterus cuspidatus (Siebold & Zucc.) H.Gross Pleuropterus zuccarinii (Small) Small Polygonum compactum Hook.f. Polygonum cuspidatum Siebold & Zucc. Polygonum hachidyoense Makino Polygonum reynoutria Makino Polygonum zuccarinii Small Reynoutria hachidyoensis (Makino) Nakai Reynoutria hachijoensis Nakai ex Jôtani Reynoutria hastata Nakai ex Ui Reynoutria henryi Nakai Reynoutria uzenensis (Honda) Honda Reynoutria yabeana Honda Tiniaria japonica (Houtt.) Hedberg

Japanese knotweed is a perennial herbaceous plant. It grows in Asian countries from South China including Taiwan and Japan to east Asia. It is considered an invasive plant in the United States

Taxonomy

Persicaria japonica Nakai

Images for kids

Dead stems from previous years remain in place as new growth appears.
A hedgerow made up of roses and Japanese knotweed in Caersws, Wales, in 2010
Erect inflorescence
A variegated variety of Japanese knotweed, used as a landscape plant
This antique locomotive at Beekbergen, Netherlands, is overgrown by knotweed. A few years before, it was free of knotweed.
Detail of the stalk
In spring

See also

In Spanish: Hierba nudosa japonesa para niños

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Japanese knotweed Facts for Kids. Kiddle Encyclopedia.