Common Name: Giant Knotweed (Sakhalin knotweed, elephant ear bamboo, Mexican bamboo)
Latin Name: Polygonum sachalinense F. Schmidt ex Maxim (Synonyms: Fallopia sachalinensis, Reynoutria sachalinensis)
Reviewer: Jim Calkins
File #: MDARA00006GKNW_11_30_2011
Review Entity | Outcome
Does the plant produce large amounts of viable, cold-hardy seeds?
Note – Though not directed to this question by the protocol, included to provide seed production information.
Go to Box 7F.
Note – Research and documentation on seed production and viability is mixed and the reproductive genetics of the species are complicated.
Go to Box 7I.
Note –Again, research and documentation on seed production and viability is mixed.
Go to Box 9B.
No – Go to Box 10
California Department of Food and Agriculture. 2011. Plant Health Division. Accessed May 2011.
Pennsylvania Department of Conservation and Natural Resources. 2011. DCNR Invasive Exotic Plant Tutorial for Natural Lands Managers – Japanese Knotweed. Accessed May 2011.
King County, Washington. 2011. Invasive Knotweeds – Polygonum × bohemicum, P. cuspidatum, P. sachalinense; Buckwheat Family [video]. Accessed May 2011.
Quarles, W. 2009. Giant knotweed, plant disease protection and immortality. The IPM Practitioner 31: 1-6.
Noxious Weed Control Board (Washington State). November 1998. Written Findings of the Washington State Noxious Weed Control Board: Giant Knotweed. Accessed May 2011.
King County, Washington. 2011. Noxious Weeds–Giant Knotweed, Polygonum sachalinense (Fallopia sachalinensis) Buckwheat Family. Accessed May, 2011.
Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program. 2011. Giant Knotweed Profile. Accessed May 2011.
Great Lakes Indian Fish & Wildlife Commission. 2011. Risk Assessment of Invasive Species to Tribal Resources. Accessed May 2011.
Pridham, A.M.S. and A. Bing. 1975. Japanese bamboo (Polygonum cuspidatum, Polygonum sachalinense). Plant Garden 31(2): 56-57.
CABI (Centre for Agricultural and Biosciences International). 2011. Japanese Knotweed Alliance. Accessed May 2011.
United States Department of Agriculture. 2011. Accessed May 2011.