Hawaiian Ecosystems at Risk project (HEAR)

Polygonum cuspidatum
(Polygonaceae)

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Species description or overview Taxonomy & nomenclature Impacts Control methods Biocontrol efforts Books

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Species description or overview

Japanese knotweed (Polygonum cuspidatum) NPS fact sheet
Japanese knotweed's range, description, ecological threat, distribution, habitat, biology, management options, and suggested alternatives are outlined in this NPS Plant Conservation Alliance Alien Plant Working Group fact sheet.

Taxonomy & nomenclature

GRIN nomenclature info for Polygonum cuspidatum
Nomenclatural information about Polygonum cuspidatum is provided by USDA/ARS/NGRP/GRIN.

Polygonum cuspidatum information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Polygonum cuspidatum, as well as other plants, animals, fungi, and microbes of North America and the world.

IPNI nomenclature info for Polygonum cuspidatum
Nomenclatural information about Polygonum cuspidatum is provided by The International Plant Names Index (IPNI).

Impacts

Polygonum cuspidatum (Polygonaceae): species information from GCW
Information on Polygonum cuspidatum as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Control methods

Controlling Japanese knotweed (Polygonum cuspidatum)
Three methods of weeding invasive knotweed in Pennsylvania are used by volunteers of Natural Biodiversity.

Biocontrol efforts

USDA-APHIS-PPQ Biocontrol target pest canvassing and evaluation View info about Adobe Acrobat PDF format
A list of new weed biocontrol targets was compiled through feasibility studies by USDA APHIS and collaborating agencies. Feasibility summaries are provided for 16 weed species (2005-2006).

Books

Weeds of the West
Whitson, Tom D., Larry C. Burrill, Steven A. Dewey, David W. Cudney, B.E. Nelson, Richard D. Lee, and Robert Parker. Whitson, Tom D. (ed.) . 2001. Weeds of the West. 9th ed. Laramie: University of Wyoming. ISBN: 0-941570-13-4.

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