Top

Scientific Name
Synonyms
Family
Common Names
Origin
Naturalised Distribution
Notes
Print Fact Sheet
ABCDEFGHIJKLMNOPQRSTUVWYXZ

Click on images to enlarge

infestation (Photo: Sheldon Navie)

creeping habit (Photo: Sheldon Navie)

leaves with darker v-shaped markings (Photo: Sheldon Navie)

flower clusters (Photo: Sheldon Navie)

close-up of young flowers (Photo: Sheldon Navie)

close-up of seeds (Photo: Jose Hernandez at USDA PLANTS Database)

young plant (Photo: Sheldon Navie)

Persicaria capitata

Scientific Name

Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross

Synonyms

Polygonum capitatum Buch.-Ham. ex D. Don

Family

Polygonaceae

Common Names

Japanese knot weed, Japanese knotweed, knotweed, persicaria, pink-head knotweed, pinkhead knotweed, pinkhead smartweed

Origin

Native to China, the Indian Sub-continent (i.e. Bhutan, northern India, Nepal and Sri Lanka) and south-eastern Asia (i.e. Myanmar, Thailand, Vietnam and Malaysia).

Naturalised Distribution

This species is becoming widely naturalised in southern and eastern Australia. It is currently naturalised in south-eastern Queensland, in the coastal and sub-coastal districts of northern and central New South Wales and in the coastal districts of south-western Western Australia. It is also sparingly naturalised in south-eastern South Australia.

Naturalised overseas in the USA (i.e. California, Oregon and Louisiana), New Zealand, La Réunion and Hawaii.

Notes

Japanese knotweed (Persicaria capitata) is regarded as an environmental weed in New South Wales.