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Persicaria capitata

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Title: Persicaria capitata  
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Subject: Polygonaceae, Fallopia japonica, Persicaria, Polygonum
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Persicaria capitata

Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Persicaria
Binomial name
Persicaria capitata
(Buch.-Ham. ex D.Don) H.Gross

Polygonum capitatum Buch.-Ham. ex D. Don

Persicaria capitata (Pink Knotweed, Japanese Knotweed or Pink bubble persicaria) is an ornamental plant of the Persicaria genus in the Polygonaceae family. The spikes are 5-10mm long and 5-7mm in diameter.


P. capitata is a prostrate herb.[1] The leaves are 1–6 cm long, 0.7–3 cm wide with pink to red bands or blotches and short scattered hairs.[1]

This plant has a strong urine scented odour.

Distribution and habitat

Persicaria capitata is a native of Asia. It has naturalised in parts of Australia[1] and North America.[2]


Persicaria capitata has been widely used in China in the treatment of various urologic disorders including urinary calculus and urinary tract infections.[3]


See also Japanese knotweed, which describes Fallopia japonica.

External links

  • Jepson Manual Treatment
  • Flora of North America
  • Persicaria capitata (Buchanan-Hamilton ex D. Don) H. Gross, Bot. Jahrb. Syst. 49: 277. 1913.
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