PLANTS Profile for Polygonum sachalinense (giant knotweed)

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PLANTS Profile

Polygonum sachalinense F. Schmidt ex Maxim.
giant knotweed


Symbol:		POSA4
Group:		Dicot
Family:		Polygonaceae
Growth Habit:		Forb/herb
Duration:		Perennial
U.S. Nativity:		Introduced

More Information:

Plant Images:
Polygonum sachalinense F. Schmidt ex Maxim.

See all the Polygonum thumbnails at the PLANTS Gallery

Plant Synonyms:
Polygonum sachalinense F. Schmidt ex Maxim.

	FASA3	Fallopia sachalinensis (F. Schmidt ex Maxim.) R. Decr.
	RESA2	Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai

Plant Distribution by State:
Polygonum sachalinense F. Schmidt ex Maxim.

State Distributional Map for Polygonum sachalinense F. Schmidt ex Maxim.

	See county distributions for the following states by clicking on them below or on the map.
	CA CT DC ID IL LA MA ME MI MN MT NC NJ NY OH OR PA	RI TN VA WA WI WV

Polygonum sachalinense F. Schmidt ex Maxim. occures in the following states: Alaska, California, Connecticut, District of Columbia, Delaware, Idaho, Illinois, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Montana, North Carolina, New Jersey, New York, Ohio, Oregon, Pennsylvania, Rhode Island, Tennessee, Virginia, Vermont, Washington, Wisconsin, West Virginia

Related Taxa:
Polygonum sachalinense F. Schmidt ex Maxim.

View 33 genera in Polygonaceae, 80 species in Polygonum

Classification:
Polygonum sachalinense F. Schmidt ex Maxim.

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


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

Noxious Weed Information:
Polygonum sachalinense F. Schmidt ex Maxim.

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.

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

Invasive Information:
Polygonum sachalinense F. Schmidt ex Maxim.

giant knotweed

This plant is considered invasive by 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 invasive plant list, or click here for a composite list of Invasive Plants of the U.S.

STATE		Assorted authors. 200_. State Noxious Weed Lists for 45 States. State agriculture or natural resource departments.
SEEPPC		Southeast Exotic Pest Plant Council. 1996. Invasive Exotic Pest Plants in Tennessee(http://www.se-eppc.org/states/TN/TNIList.html, October 19, 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee.

Introduced Information:
Polygonum sachalinense F. Schmidt ex Maxim.

This plant is introduced to the United States from another country or countries. Click on link below for a partial or complete list of U.S. introduced plants.

Scientific Name=	A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| X \| Y \| Z \| all
Common Name=	A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| X \| Y \| Z \| all

Wetland Indicator Status:
Polygonum sachalinense F. Schmidt ex Maxim.

Nat. Ind.

Reg. 1

Reg. 2

Reg. 3

Reg. 4

Reg. 5

Reg. 6

Reg. 7

Reg. 8

Reg. 9

Reg. 0

Reg. A

Reg. C

Reg. H

UPL,NI

UPL*

UPL

Other Species Accounts and Images:
Polygonum sachalinense F. Schmidt ex Maxim.

View species account from ARS Germplasm Resources Information Network (GRIN).

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 20923.

View photographs and distribution from University of Tennessee Herbarium.

View species account, photographs, and distribution from Wisconsin State Herbarium (UW-Madison).

Related Web Sites:
Polygonum sachalinense F. Schmidt ex Maxim.

Invasive Plant Atlas of New England

WA-King County Noxious Weeds