Japanese knotweed
Persicaria capitata
Herb
Alternate
Simple
White
Pink
Variegated
Green
Purple
Common names
Also known as:
Japanese knotweed, knotweed, persicaria, pink-head knotweed, pinkhead knotweed, pinkhead smartweed,
Family
Polygonaceae
Deciduous
No
Flowering time
Spring
Native/Exotic
Exotic
Origin
Native to China, the Indian Sub-continent and south-eastern Asia.
Notifiable
No
Council declaration
SIL – Special Investigation List
Known 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.
Impact and control methods
