General Information | |
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Symbol: | POSA4 |
Group: | Dicot |
Family: | Polygonaceae |
Duration: |
Perennial |
Growth Habit: |
Forb/herb |
Native Status: |
AK I CAN I L48 I |
Data Source and Documentation |
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Native | ![]() |
Introduced | ![]() |
Both | ![]() |
Absent/Unreported |
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Native, No County Data | ![]() |
Introduced, No County Data | ![]() |
Both, No County Data |
Native Status: | ||||||||||||||||||||||||||||
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L48 | ![]() |
AK | ![]() |
HI | ![]() |
PR | ![]() |
VI | ![]() |
NAV | ![]() |
CAN | ![]() |
GL | ![]() |
SPM | ![]() |
NA | |||||||||
Images
Synonyms
Symbol | Scientific Name |
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FASA3 | Fallopia sachalinensis (F. Schmidt ex Maxim.) Ronse Decr. |
RESA2 | Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai |
Classification
Rank | Scientific Name and Common Name |
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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 sachalinense F. Schmidt ex Maxim. – giant knotweed |
Subordinate Taxa
Legal Status
Noxious Weed Information | |
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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
giant knotweed
B list (noxious weeds)
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Connecticut
giant knotweed
Potentially invasive, banned
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Oregon
giant knotweed
"B" designated weed
giant knotweed
Quarantine
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Washington
giant knotweed
Class B noxious weed
giant knotweed
Noxious weed seed and plant quarantine
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U.S. Weed Information | |
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Polygonum sachalinense
giant 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.
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STATE | Assorted authors. State noxious weed lists for 46 states. State agriculture or natural resource departments. |
SEEPPC | Southeast Exotic Pest Plant Council. 1996. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee. |
Wetland Status
RESA2 Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai
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Related Links
Wildlife
Food
Source | Large Mammals | Small Mammals | Water Birds | Terrestrial Birds |
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Cover
Source | Large Mammals | Small Mammals | Water Birds | Terrestrial Birds |
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Description of Values
Value Class | Food | Cover |
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