Home/Species/ Reynoutria japonica

Reynoutria japonica

Houtt.

GNRUnranked Found in 46 roadless areas NatureServe Explorer →

GNRUnrankedGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.1111703

Element CodePDPGN0L410

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderPolygonales

FamilyPolygonaceae

GenusReynoutria

Synonyms

Fallopia japonica(Houtt.) Dcne.

Concept Reference

Flora of North America Editorial Committee (FNA). 2005. Flora of North America north of Mexico. Vol. 5. Magnoliophyta: Caryophyllidae: Caryophyllales, Polygonales, and Plumbaginales. Oxford Univ. Press, New York. vii + 656 pp.

Taxonomic Comments

This is the record for Reynoutria japonica in a broad sense, which includes R. japonica var. japonica which is introduced in North America, as well as varieties endemic to Japan, variety hachidyoensis and variety uzenensis (treated as varieties of Fallopia japonica in FNA 2005, vol. 5). Schuster et al. (2011) find that the Polygoneae subclade Reynoutria is supported as a separate genus rather than as part of Fallopia, thus recognizing Fallopia japonica, as treated by FNA (2005), in Reynoutria. Reynoutria japonica var. japonica (F. japonica var. japonica sensu FNA) is equivalent to Polygonum cuspidatum (VASCAN 2019, FNA 2005).

Ecology & Habitat

Other Nations (2)

United StatesNNA

Province	Rank	Native
Alaska	SNA	No
Massachusetts	SNA	No
Alabama	SNA	No
Kansas	SNA	No
New Jersey	SNA	No
Missouri	SNA	No
Mississippi	SNA	No
Pennsylvania	SNA	No
Idaho	SNA	No
West Virginia	SNA	No
Connecticut	SNA	No
Florida	SNA	No
Nebraska	SNA	No
Michigan	SNA	No
Oregon	SNA	No
Wyoming	SNA	No
North Carolina	SNA	No
Washington	SNA	No
Vermont	SNA	No
New Hampshire	SNA	No
Delaware	SNA	No
Georgia	SNA	No
South Carolina	SNA	No
Arkansas	SNA	No
Virginia	SNA	No
Rhode Island	SNA	No
California	SNA	No
Illinois	SNA	No
Kentucky	SNA	No
Maine	SNA	No
Minnesota	SNA	No
Iowa	SNA	No
Utah	SNA	No
South Dakota	SNA	No
Oklahoma	SNA	No
Maryland	SNA	No
Wisconsin	SNA	No
Tennessee	SNA	No
Montana	SNA	No
New York	SNA	No
Indiana	SNA	No
Ohio	SNA	No
Colorado	SNA	No
Louisiana	SNA	No

CanadaNNA

Province	Rank	Native
Nova Scotia	SNA	No
Manitoba	SNA	No
Quebec	SNA	No
Ontario	SNA	No
Prince Edward Island	SNA	No
New Brunswick	SNA	No
Alberta	SNA	No
British Columbia	SNA	No

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (46)

Alaska (12)

Area	Forest	Acres
Gravina	Tongass National Forest	37,381
Green Rocks	Tongass National Forest	11,093
North Baranof	Tongass National Forest	314,089
North Etolin	Tongass National Forest	40,993
North Kupreanof	Tongass National Forest	114,660
Redoubt	Tongass National Forest	68,347
Revilla	Tongass National Forest	29,298
Rhine	Tongass National Forest	23,010
Sitka Urban	Tongass National Forest	112,003
Soda Bay	Tongass National Forest	78,091
Taku-Snettisham	Tongass National Forest	664,928
Twelvemile	Tongass National Forest	37,940

Georgia (2)

Area	Forest	Acres
Indian Grave Gap	Chattahoochee National Forest	1,020
Rocky Mountain	Chattahoochee National Forest	4,269

Kentucky (1)

Area	Forest	Acres
Wolfpen	Daniel Boone National Forest	2,835

New Hampshire (7)

Area	Forest	Acres
Carr Mountain	White Mountain National Forest	17,110
Great Gulf Ext.	White Mountain National Forest	15,110
Kilkenny	White Mountain National Forest	28,766
Pemigewasset	White Mountain National Forest	32,255
Pemigewasset Ext	White Mountain National Forest	15,840
Presidential - Dry River Ext	White Mountain National Forest	10,555
Sandwich Range	White Mountain National Forest	16,797

North Carolina (5)

Area	Forest	Acres
Balsam Cone	Pisgah National Forest	10,591
Harper Creek	Pisgah National Forest	7,325
Linville Gorge Addition	Pisgah National Forest	2,809
Slide Hollow	Pisgah National Forest	193
Wilson Creek	Pisgah National Forest	4,863

Oregon (1)

Area	Forest	Acres
Mclennon Mountain	Willamette National Forest	8,085

Pennsylvania (1)

Area	Forest	Acres
Tracy Ridge	Allegheny National Forest	9,034

Tennessee (1)

Area	Forest	Acres
Slide Hollow	Cherokee National Forest	4,057

Vermont (3)

Area	Forest	Acres
Bread Loaf	Green Mountain and Finger Lakes National Forests	1,768
Devil's Den 09083	Green Mountain and Finger Lakes National Forests	9,169
Woodford 09086	Green Mountain and Finger Lakes National Forests	2,456

Virginia (6)

Area	Forest	Acres
Gum Run	George Washington National Forest	12,620
New London Bridge Branch	Jefferson National Forest	844
Northern Massanutten	George Washington National Forest	9,444
Oliver Mountain	George Washington National Forest	13,090
Skidmore	George Washington National Forest	5,641
Three Ridges	George Washington National Forest	4,745

Washington (4)

Area	Forest	Acres
Eagle Rock	Mt Baker-Snoqualmie National Forest	34,064
Glacier Peak K	Mt Baker-Snoqualmie National Forest	47,269
Madison Creek	Olympic National Forest	1,223
Pompey	Gifford Pinchot National Forest	23,985

West Virginia (3)

Area	Forest	Acres
Dolly Sods Roaring Plain	Monongahela National Forest	13,392
Little Allegheny Mountain	Monongahela National Forest	10,514
North Mountain Hopeville	Monongahela National Forest	6,525

References (4)

Flora of North America Editorial Committee (FNA). 2005. Flora of North America north of Mexico. Vol. 5. Magnoliophyta: Caryophyllidae: Caryophyllales, Polygonales, and Plumbaginales. Oxford Univ. Press, New York. vii + 656 pp.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Schuster, T.M., K.L. Wilson, and K.A. Kron. 2011. Phylogenetic relationships of Muehlenbeckia, Fallopia, and Reynoutria (Polygonaceae) investigated with chloroplast and nuclear sequence data. International Journal of Plant Sciences 172(8): 1053-1066.
Weakley, A.S. 2020. Flora of the Southeastern United States. 20 October 2020 Edition. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina at Chapel Hill.