|
General Information | |
---|---|
Symbol: | POPO5 |
Group: | Dicot |
Family: | Polygonaceae |
Duration: |
Perennial |
Growth Habit: |
Forb/herb |
Native Status: |
CAN I L48 I SPM I |
Data Source and Documentation |
![]() |
Native | ![]() |
Introduced | ![]() |
Both | ![]() |
Absent/Unreported |
![]() |
Native, No County Data | ![]() |
Introduced, No County Data | ![]() |
Both, No County Data |
Native Status: | ||||||||||||||||||||||||||||
![]() |
L48 | ![]() |
AK | ![]() |
HI | ![]() |
PR | ![]() |
VI | ![]() |
NAV | ![]() |
CAN | ![]() |
GL | ![]() |
SPM | ![]() |
NA | |||||||||
Images
Synonyms
Symbol | Scientific Name | Other Common Names |
---|---|---|
ACPO7 | Aconogonum polystachyum (Wall. ex Meisn.) H. Haraldson | |
PEWA18 | Persicaria wallichii Greuter & Burdet |
Garden Smartweed
|
Classification
Rank | Scientific Name and Common Name |
---|---|
Kingdom | Plantae – Plants |
Subkingdom | Tracheobionta – Vascular plants |
Superdivision | Spermatophyta – Seed plants |
Division | Magnoliophyta – Flowering plants |
Class | Magnoliopsida – Dicotyledons |
Subclass | Caryophyllidae |
Order | Polygonales |
Family | Polygonaceae – Buckwheat family |
Genus | Polygonum L. – knotweed |
Species | Polygonum polystachyum Wall. ex Meisn. – cultivated knotweed |
Subordinate Taxa
Legal Status
Noxious Weed Information | |
---|---|
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds. | |
California
Himalayan knotweed
B list (noxious weeds)
|
|
Oregon
Himalayan knotweed
"B" designated weed
Himalayan knotweed
Quarantine
|
|
Washington
Himalayan knotweed
Class B noxious weed
Himalayan knotweed
Noxious weed seed and plant quarantine
|
U.S. Weed Information | |
---|---|
Polygonum polystachyum
Himalyan knotweed
This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of
Weeds of the U.S.
|
|
STATE | Assorted authors. State noxious weed lists for 46 states. State agriculture or natural resource departments. |
Wetland Status
PEWA18 Persicaria wallichii Greuter & Burdet
|
Related Links
Wildlife
Food
Source | Large Mammals | Small Mammals | Water Birds | Terrestrial Birds |
---|
Cover
Source | Large Mammals | Small Mammals | Water Birds | Terrestrial Birds |
---|
Description of Values
Value Class | Food | Cover |
---|