Taxon: Reynoutria sachalinensis (F. Schmidt) Nakai

Summary

Genus:

Reynoutria

Family:

Polygonaceae

Subfamily:

Polygonoideae

Tribe:

Polygoneae

Nomen number:

409769

Place of publication:

Rep. veg. Ooryongto 18. 1919

Protologue link:

https://www.biodiversitylibrary.org/page/34409131

Verified:

10/28/2011 ARS Systematic Botanists.

Accessions:

4 (1 active, 0 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Basionym
Polygonum sachalinense F. Schmidt

Homotypic Synonym(s)
Fallopia sachalinensis (F. Schmidt) Ronse Decr.
Tiniaria sachalinensis (F. Schmidt) Janch.

No images

Conservation Status

Reference(s)

University of Georgia Center for Invasive Species and Ecosystem Health
Allan, H. H. B. et al. 1961-. Flora of New Zealand.
Galasso, G. 2011. Review of Polygonaceae data for World Economic Plants, ed. 2. pers. comm.
Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
Harden, G. J., ed. 1990-1993. Flora of New South Wales.
Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
Iwatsuki, K. et al. 1993-. Flora of Japan. Note: = Fallopia sachalinensis (F. Schmidt) Ronse Decr.
Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
Jonsell, B., ed. 2000. Flora nordica. Note: = Fallopia sachalinensis
Komarov, V. L. et al., eds. 1934-1964. Flora SSSR. Note: = Polygonum sachalinense F. Schmidt
Personal Care Products Council. International Nomenclature Cosmetic Ingredient
Ronse Decraene, L.-P. & J. R. Akeroyd. 1988. Generic limits in Polygonum and related genera (Polygonaceae) on the basis of floral characters. Bot. J. Linn. Soc. 98:369. Note: = Fallopia sachalinensis (F. Schmidt) Ronse Decr.
Schuster, T. M. et al. 2011. Phylogenetic relationships of Muehlenbeckia, Fallopia, and Reynoutria (Polygonaceae) investigated with chloroplast and nuclear sequence data. Int. J. Pl. Sci. 172:1063.
Tutin, T. G. et al., eds. 1993. Flora europaea, ed. 2.
Wilson, K. L. 1988. Polygonum sensu lato (Polygonaceae) in Australia. Telopea 3:179.
2018. Mid-Atlantic invasive plant species (on-line resource)

Common names

Language	Name	note	seq	Citation
English	giant knotweed	as Polygonum sachalinensis	1	Liberty Hyde Bailey Hortorium. 1976. Hortus third. A concise dictionary of plants cultivated in the United States and Canada Note: = Polygonum sachalinensis F. Schmidt
English	sacaline	as Polygonum sachalinensis	1	Liberty Hyde Bailey Hortorium. 1976. Hortus third. A concise dictionary of plants cultivated in the United States and Canada Note: = Polygonum sachalinensis F. Schmidt
English	Sakhalin knotweed		1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
French	renouée des Sakhalines		2	Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1413. Note: as Fallopia sachalinensis
German	Sachalin-Flügelknöterich		2	Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1413. Note: as Fallopia sachalinensis
Italian	poligono di Sakhalin		2	Galasso, G. 2011. Review of Polygonaceae data for World Economic Plants, ed. 2. pers. comm.
Japanese Rōmaji	ō-itadori		2	Iwatsuki, K. et al. 1993-. Flora of Japan. Note: = Fallopia sachalinensis (F. Schmidt) Ronse Decr.

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Asia-Temperate	Eastern Asia	Japan	Hokkaidô		Iwatsuki, K. et al. 1993-. Flora of Japan.
1	Native	Asia-Temperate	Eastern Asia	Japan	Honshu		Iwatsuki, K. et al. 1993-. Flora of Japan.
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Kurile Islands	s.	Iwatsuki, K. et al. 1993-. Flora of Japan.
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Sakhalin	s.	Iwatsuki, K. et al. 1993-. Flora of Japan.
2	Cultivated					also cult. elsewhere	Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
2	Cultivated	Asia-Temperate	Eastern Asia	Japan			Iwatsuki, K. et al. 1993-. Flora of Japan.
2	Cultivated	Europe	Eastern Europe	Russian Federation	Bryansk		Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
4	Naturalized	Africa	Southern Africa	South Africa	KwaZulu-Natal		Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
4	Naturalized	Australasia	Australia	Australia	New South Wales		Harden, G. J., ed. 1990-1993. Flora of New South Wales.
4	Naturalized	Australasia	New Zealand	New Zealand	North Island		Allan, H. H. B. et al. 1961-. Flora of New Zealand.
4	Naturalized	Australasia	New Zealand	New Zealand	South Island		Allan, H. H. B. et al. 1961-. Flora of New Zealand.
4	Naturalized	Europe	Eastern Europe	Belarus			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Latvia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Lithuania			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Ukraine			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Austria			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Belgium			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Czech Republic			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Germany			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Hungary			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Netherlands			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Poland			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Slovakia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Denmark			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Finland		s.	Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Ireland			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Sweden		s.	Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	United Kingdom			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southeastern Europe	Bulgaria			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southeastern Europe	Slovenia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southwestern Europe	France			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Northern America	Eastern Canada	Canada	New Brunswick		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Eastern Canada	Canada	Newfoundland and Labrador		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Eastern Canada	Canada	Nova Scotia		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Eastern Canada	Canada	Ontario		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Eastern Canada	Canada	Prince Edward Island		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Eastern Canada	Canada	Québec		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	North-Central U.S.A.	United States	Illinois		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	North-Central U.S.A.	United States	Wisconsin		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Connecticut		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Maine		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Massachusetts		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Michigan		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	New York		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Ohio		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Pennsylvania		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	Rhode Island		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northeastern U.S.A.	United States	West Virginia		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northwestern U.S.A.	United States	Idaho		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northwestern U.S.A.	United States	Montana		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northwestern U.S.A.	United States	Oregon		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Northwestern U.S.A.	United States	Washington		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Delaware		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Kentucky		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Louisiana		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Maryland		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	North Carolina		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Tennessee		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southeastern U.S.A.	United States	Virginia		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Southwestern U.S.A.	United States	California		FNA Editorial Committee. 1993-. Flora of North America.
4	Naturalized	Northern America	Western Canada	Canada	British Columbia		FNA Editorial Committee. 1993-. Flora of North America.

Native
Asia-Temperate

RUSSIAN FAR EAST: Russian Federation [Kurile Islands (s.), Sakhalin (s.)]
EASTERN ASIA: Japan [Hokkaidô, Honshu]

Cultivated

REGION:

Asia-Temperate

EASTERN ASIA: Japan

Europe

EASTERN EUROPE: Russian Federation [Bryansk]

Naturalized
Africa

SOUTHERN AFRICA: South Africa [KwaZulu-Natal]

Australasia

AUSTRALIA: Australia [New South Wales]
NEW ZEALAND: New Zealand [North Island, South Island]

Europe

NORTHERN EUROPE: Denmark, Finland (s.), United Kingdom, Ireland, Sweden (s.)
MIDDLE EUROPE: Austria, Belgium, Czech Republic, Germany, Hungary, Netherlands, Poland, Slovakia
EASTERN EUROPE: Belarus, Lithuania, Latvia, Ukraine
SOUTHEASTERN EUROPE: Bulgaria, Slovenia
SOUTHWESTERN EUROPE: France

Northern America

EASTERN CANADA: Canada [New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, Québec]
WESTERN CANADA: Canada [British Columbia]
NORTHEASTERN U.S.A.: United States [Connecticut, Maine, Massachusetts, Michigan, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois, Wisconsin]
NORTHWESTERN U.S.A.: United States [Idaho, Montana, Oregon, Washington]
SOUTHEASTERN U.S.A.: United States [Delaware, Kentucky, Louisiana, Maryland, North Carolina, Tennessee, Virginia]
SOUTHWESTERN U.S.A.: United States [California]

Reference(s)

Allan, H. H. B. et al. 1961-. Flora of New Zealand.
FNA Editorial Committee. 1993-. Flora of North America.
Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Harden, G. J., ed. 1990-1993. Flora of New South Wales.
Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Iwatsuki, K. et al. 1993-. Flora of Japan.
Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.

Economic Uses

Usage	Type	Note	Reference
Animal food	fodder	as Fallopia sachalinensis	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 Note: as Fallopia sachalinensis
Environmental	ornamental	as Fallopia sachalinensis	FNA Editorial Committee. 1993-. Flora of North America. Note: as Fallopia sachalinensis
Environmental	ornamental	as Polygonum sachalinense	Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening Note: as Polygonum sachalinense
Fuels	biomass for energy generation	potential, as Polygonum sachalinense	Bassam, N. E. 1998. Energy plant species. 146-149. Note: as Polygonum sachalinense
Weed	seed contaminant	potential; as Fallopia sachalinensis	FNA Editorial Committee. 1993-. Flora of North America. Note: as Fallopia sachalinensis
Weed	seed contaminant	potential; as Polygonum sachalinense	Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California Note: as Polygonum sachalinense

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=409769. Accessed 15 April 2026.