cultivated knotweed
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Persicaria wallichii Greuter & Burdet

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Taxonomic Rank: Magnoliopsida: Polygonales: Polygonaceae
Synonym(s): Himalyan knotweed

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s); plant.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); flowering stem.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Foliage; foliage.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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Invasive Listing Sources:
Faith Campbell, 1998
Native Plant Society of Oregon, 2008
Pacific Northwest Exotic Pest Plant Council, 1998