water knotweed
Polygonum amphibium L.

Selected Images


1551143
1551143

water knotweed
Polygonum amphibium
Plant(s)
Catherine Herms
1559198
1559198

water knotweed
Polygonum amphibium
Plant(s)
Ohio State Weed Lab Archive
1559213
1559213

water knotweed
Polygonum amphibium
Infestation
Ohio State Weed Lab Archive
1551145
1551145

water knotweed
Polygonum amphibium
Foliage
Catherine Herms
1559223
1559223

water knotweed
Polygonum amphibium
Feature(s)
Catherine Herms
1559222
1559222

water knotweed
Polygonum amphibium
Feature(s)
Catherine Herms
1559225
1559225

water knotweed
Polygonum amphibium
Stem(s)
Ohio State Weed Lab Archive
1559216
1559216

water knotweed
Polygonum amphibium
Infestation
Ohio State Weed Lab Archive
1559194
1559194

water knotweed
Polygonum amphibium
Flower(s)
Ohio State Weed Lab Archive
1559196
1559196

water knotweed
Polygonum amphibium
Plant(s)
Catherine Herms
1559206
1559206

water knotweed
Polygonum amphibium
Plant(s)
Catherine Herms
1559197
1559197

water knotweed
Polygonum amphibium
Plant(s)
Ohio State Weed Lab Archive
1559227
1559227

water knotweed
Polygonum amphibium
Root(s)
Ohio State Weed Lab Archive
1559205
1559205

water knotweed
Polygonum amphibium
Seed(s)
Ken Chamberlain

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Caryophyllidae
Order: Polygonales
Family: Polygonaceae
Genus: Polygonum

Other System Links

Plants: POAM8
Bayer: POLCC
GRIN: 400113
ITIS: 20865
NPDN Pest: PEAAGBB
NPDN Host: 36446

Synonyms and Other Names

Other Common Names:
water smartweed

Categories

Category: Forbs/Herbs