Reynoutria japonica Houtt.

Native to:

Amur, China North-Central, China South-Central, China Southeast, Hainan, Japan, Khabarovsk, Korea, Kuril Is., Manchuria, Nansei-shoto, Primorye, Sakhalin, Taiwan

Introduced into:

Alabama, Alaska, Arkansas, Austria, Baltic States, Belgium, British Columbia, Bulgaria, California, Central European Rus, Colorado, Connecticut, Czechoslovakia, Delaware, Denmark, District of Columbia, Finland, Florida, France, Georgia, Germany, Great Britain, Hungary, Idaho, Illinois, Indiana, Iowa, Ireland, Italy, Kansas, Kentucky, Louisiana, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Netherlands, New Brunswick, New Hampshire, New Jersey, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, Norway, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Poland, Portugal, Prince Edward I., Québec, Rhode I., Romania, South Carolina, South Dakota, Spain, Sweden, Switzerland, Tasmania, Tennessee, Transcaucasus, Ukraine, Utah, Vermont, Vietnam, Virginia, Washington, West Virginia, Wisconsin, Yugoslavia

POWO follows these authorities in accepting this name:

• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Delipavlov, D. & Cheshmedzhiev, I. (eds.) (2011). Opredelitel na rasteniiata v Bulgariia: 1-590. Akad. Isd. Agrar. Univers. Plovdiv.
• Franck, A.R., Anderson, L.C., Burkhalter, J.R. & Dickman, S. (2016). Additions to the flora of Florida, U.S.A. (2010-2015). Journal of the Botanical Research Institute of Texas 10: 175-190.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• Kharkevich, S.S. (ed.) (1989). Plantae Vasculares Orientalis Extremi Sovietici 4: 1-380. Nauka, Leningrad.
• Knapp, W.M. & Naczi, R.F.C. (2021). Vascular plants of Maryland, USA. A comprehensive account of the state's botanical diversity. Smithsonian Contributions to Botany 113: 1-151.
• Kozhevnikov, A.E., Kozhevnikov, Z.V., Kwak, M. & Lee, B.Y. (2019). Illustrated flora of the Primorsky Territory, Russian Far East: 1-1124. National institute of biological resources.
• Lê, T.C. (2003). Danh lục các loài thực vật Việt Nam 2: 1-1203. Hà Nội : Nhà xuất bản Nông nghiệp.
• Mirek, Z., Piękoś-Mirkowa, H., Zając, A. & Zając, M (2020). Vascular plants of Poland an annotated checklist: 1-526. W. Szafer institute of botany, Polish academy of sciences, Krakow, Poland.
• Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
• Schuster, T.M., Reveal, J.L., Bayly, M.J. & Kron, K.A. (2015). An updated molecular phylogeny of Polygonoideae (Polygonaceae): relationships of Oxygonum, Pteroxygonum, and Rumex, and a new circumscription of Koenigia. Taxon 64: 1188-1208.
• Sluschny, H. & Schlüter, U. (2012). Zur Flora von Schwerin und Umgebung. Botanischer Rundbrief für Mecklenburg-Vorpommern 49: 51-59.
• Stace, C. (2019). New Flora of the British Isles ed. 4: 1-1266. C & M Floristics.
• Takhtajan, A.L. (ed.) in Takhtajan, A.L. (ed.) (2012). Konspekt Flora Kavkaza 3(2): 1-623. Editio Universitatis Petropolitanae.
• Tutin, T.G. & al. (eds.) (1993). Flora Europaea ed. 2, 1: 1-581. Cambridge University Press.
• Urziceanu, M. & al. (2020). Updated list of non-native ornamental plants in Romania. Contributii Botanice Universitatea "Babes-Bolyai" din Cluj-Napoca 55: 59-82.
• Wu, Z. & Raven, P.H. (eds.) (2003). Flora of China 5: 1-505. Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis).
• de Salas, MF, Baker, ML (2022). A Census of the Vascular Plants of Tasmania, including Macquarie Island: 1-161. Tasmanian Herbarium, Tasmanian Museum and Art Gallery, Hobart. https://flora.tmag.tas.gov.au/resources/census/.

Kew Backbone Distributions

• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Franck, A.R., Anderson, L.C., Burkhalter, J.R. & Dickman, S. (2016). Additions to the flora of Florida, U.S.A. (2010-2015). Journal of the Botanical Research Institute of Texas 10: 175-190.
• Iwatsuki, K., Boufford, D.E. & Ohba, H. (eds.) (2006). Flora of Japan IIa: 1-550. Kodansha Ltd., Tokyo.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• Kharkevich, S.S. (ed.) (1989). Plantae Vasculares Orientalis Extremi Sovietici 4: 1-380. Nauka, Leningrad.
• Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
• Lê, T.C. (2003). Danh lục các loài thực vật Việt Nam 2: 1-1203. Hà Nội : Nhà xuất bản Nông nghiệp.
• Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
• Stace, C. (2019). New Flora of the British Isles ed. 4: 1-1266. C & M Floristics.
• Takhtajan, A.L. (ed.) in Takhtajan, A.L. (ed.) (2012). Konspekt Flora Kavkaza 3(2): 1-623. Editio Universitatis Petropolitanae.
• Wu, Z. & Raven, P.H. (eds.) (2003). Flora of China 5: 1-505. Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis).
• de Salas, MF, Baker, ML (2022). A Census of the Vascular Plants of Tasmania, including Macquarie Island: 1-161. Tasmanian Herbarium, Tasmanian Museum and Art Gallery, Hobart. https://flora.tmag.tas.gov.au/resources/census/.