Plants Profile for Polygonum sachalinense (giant knotweed)

General Information
Symbol:	POSA4
Group:	Dicot
Family:	Polygonaceae
Duration:	Perennial
Growth Habit:	Forb/herb
Native Status:	AK I CAN I L48 I
Data Source and Documentation

	Native		Introduced		Both		Absent/Unreported
	Native, No County Data		Introduced, No County Data		Both, No County Data

L48

NAV

CAN

SPM

Images

Synonyms

Symbol	Scientific Name
FASA3	Fallopia sachalinensis (F. Schmidt ex Maxim.) Ronse Decr.
RESA2	Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.

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 sachalinense F. Schmidt ex Maxim. – giant knotweed

Subordinate Taxa

This plant has no children

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 giant knotweed B list (noxious weeds)
Connecticut giant knotweed Potentially invasive, banned
Oregon giant knotweed "B" designated weed giant knotweed Quarantine
Washington giant knotweed Class B noxious weed giant knotweed Noxious weed seed and plant quarantine

U.S. Weed Information
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.
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

Interpreting Wetland Status

Synonyms

RESA2 Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai

North America
Alaska	UPL
Arid West	FACU
Atlantic and Gulf Coastal Plain	UPL
Eastern Mountains and Piedmont	UPL
Great Plains	UPL
Midwest	UPL
Northcentral & Northeast	UPL
Western Mountains, Valleys, and Coast	FACU