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Persicaria amphibia

(L.) Delarbre

Water Smartweed

G5Secure Found in 106 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Least concernIUCN
Identity
Unique IDELEMENT_GLOBAL.2.149133
Element CodePDPGN0L040
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygonales
FamilyPolygonaceae
GenusPersicaria
Synonyms
Polygonum amphibiumL.
Other Common Names
Renouée amphibie (FR) Water Knotweed (EN) water knotweed (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
FNA (vol. 5, 2005) transfers Polygonum amphibium to Persicaria amphibia.
Conservation Status
Rank MethodExpertise without calculation
Review Date2015-06-03
Change Date1984-06-25
Ecology & Habitat
Other Nations (2)
United StatesN5
ProvinceRankNative
New YorkS5Yes
KentuckyS5Yes
MassachusettsSNRYes
VirginiaS4Yes
CaliforniaSNRYes
South DakotaSNRYes
IllinoisS3Yes
LouisianaSNRYes
MontanaS5Yes
WyomingS4Yes
North DakotaSNRYes
OregonSNRYes
OklahomaSNRYes
OhioSNRYes
New MexicoSNRYes
VermontS5Yes
South CarolinaSNRYes
WisconsinSNRYes
PennsylvaniaS5Yes
New JerseySNRYes
New HampshireSNRYes
UtahSNRYes
MississippiSNRYes
MissouriSNRYes
MinnesotaSNRYes
AlaskaSNRYes
ArkansasSNRYes
MarylandS5Yes
IndianaSNRYes
DelawareS4Yes
GeorgiaS1Yes
MichiganSNRYes
ConnecticutSNRYes
West VirginiaS4Yes
NevadaSNRYes
TennesseeSNRYes
ColoradoS4Yes
MaineSNRYes
KansasS5Yes
IdahoSNRYes
IowaS5Yes
TexasSNRYes
NebraskaSNRYes
District of ColumbiaSNRYes
ArizonaSNRYes
Rhode IslandSNRYes
WashingtonSNRYes
CanadaN5
ProvinceRankNative
LabradorSUYes
ManitobaS5Yes
British ColumbiaS5Yes
Nova ScotiaS4Yes
SaskatchewanS4Yes
Northwest TerritoriesS4Yes
Yukon TerritoryS4Yes
OntarioS5Yes
QuebecSNRYes
Prince Edward IslandS4Yes
Island of NewfoundlandS2Yes
AlbertaS5Yes
New BrunswickS5Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (106)
California (14)
AreaForestAcres
Bucks LakePlumas National Forest680
Hoover - NorthHumboldt-Toiyabe National Forest1,574
Iceberg - Mill CreekHumboldt-Toiyabe National Forest26,988
Middle ForkPlumas National Forest29,278
Mt. JacksonHumboldt-Toiyabe National Forest20,721
Mt. HoffmanModoc National Forest9,780
North MountainStanislaus National Forest7,856
PyramidEldorado National Forest24,347
Raywood Flat BSan Bernardino National Forest11,373
Robinson PeakHumboldt-Toiyabe National Forest5,835
San JoaquinSierra National Forest22,474
Silver HillHumboldt-Toiyabe National Forest4,423
South SierraSequoia National Forest8,008
Timbered CraterLassen National Forest4,096
Colorado (5)
AreaForestAcres
Dome PeakRoutt NF35,716
HermosaSan Juan NF148,103
Long ParkRoutt NF42,100
Red TableWhite River NF39,122
San MiguelSan Juan NF64,263
Idaho (4)
AreaForestAcres
Peace RockBoise National Forest191,734
Pioneer MountainsSawtooth National Forest119,563
Pioneer MountainsSalmon-Challis National Forest172,460
SeceshPayette National Forest248,088
Michigan (3)
AreaForestAcres
DeliriumHiawatha National Forest190
Government IslandHiawatha National Forest225
Norwich Plains Revised Roadless AreaOttawa National Forest4,360
Minnesota (2)
AreaForestAcres
Hegman LakesSuperior National Forest675
Wood LakeSuperior National Forest596
Montana (17)
AreaForestAcres
Bear - Marshall - Scapegoat - SwanLolo National Forest118,485
Bear - Marshall - Scapegoat - SwanLewis and Clark National Forest344,022
Big Snowy Mountains WsaLewis and Clark National Forest88,003
Bmss Ra 1485Flathead National Forest334,275
BridgerGallatin National Forest45,059
Buckhorn Ridge (MT)Kootenai National Forest34,716
Cabinet Face East #671Kootenai National Forest50,326
Cherry PeakLolo National Forest37,862
Freezeout MountainBeaverhead-Deerlodge National Forest97,305
HoodooLolo National Forest105,162
Italian PeakBeaverhead-Deerlodge National Forest90,401
MadisonGallatin National Forest127,859
Mt. Gmt Area HCuster National Forest1,335
RattlesnakeLolo National Forest2,881
Saddle Mountain #168Kootenai National Forest14,675
Teepee - Spring CreekLolo National Forest13,902
Tenderfoot - Deep CreekLewis and Clark National Forest85,614
Nevada (4)
AreaForestAcres
Jobs Peak (NV)Humboldt-Toiyabe National Forest1,342
Pearl PeakHumboldt-Toiyabe National Forest71,405
Rose - GalenaHumboldt-Toiyabe National Forest3,711
Rose - Whites CanyonHumboldt-Toiyabe National Forest2,568
New Mexico (1)
AreaForestAcres
San Pedro ParksSanta Fe National Forest5,824
Oregon (13)
AreaForestAcres
Crane MountainFremont National Forest23,096
MarshWinema National Forest1,226
Mt. BaileyUmpqua National Forest18,401
North KalmiopsisSiskiyou National Forests91,560
North PaulinaDeschutes National Forest19,670
Shasta CostaSiskiyou National Forests14,420
Sky Lakes AWinema National Forest3,940
Snake RiverWallowa-Whitman National Forest31,229
South PaulinaDeschutes National Forest9,074
TahkenitchSiuslaw National Forest5,799
Umpqua SpitSiuslaw National Forest2,090
West - South BachelorDeschutes National Forest25,994
WoahinkSiuslaw National Forest5,309
Utah (19)
AreaForestAcres
0401002Ashley National Forest36,113
418026Uinta National Forest14,038
418027Uinta National Forest13,884
418044Uinta National Forest5,495
Bear Valley PeakDixie National Forest7,438
Bunker CreekDixie National Forest7,474
Circleville MountainFishlake National Forest24,142
Fishlake MountainFishlake National Forest25,217
Hog RanchDixie National Forest17,130
Lava BedsDixie National Forest14,944
Little CreekFishlake National Forest11,479
Mt. NaomiWasatch-Cache National Forest41,922
MytogeFishlake National Forest8,286
Signal PeakFishlake National Forest30,889
Stansbury MountainsWasatch-Cache National Forest39,696
Stump CreekCaribou National Forest355
Swan Creek MountainWasatch-Cache National Forest9,390
Temple PeakWasatch-Cache National Forest24,081
WellsvilleWasatch-Cache National Forest1,717
Virginia (1)
AreaForestAcres
Bear CreekJefferson National Forest18,274
Washington (9)
AreaForestAcres
Abercrombie - HooknoseColville National Forest33,862
Big Lava BedGifford Pinchot National Forest19,043
Blue SlideWenatchee National Forest17,505
EntiatWenatchee National Forest72,617
Granite MountainOkanogan National Forest27,428
Jefferson RidgeOlympic National Forest6,512
ManastashWenatchee National Forest11,155
Mt. BonaparteOkanogan National Forest10,891
Rock CreekWenatchee National Forest32,239
Wisconsin (1)
AreaForestAcres
09161 - Gates LakeChequamegon-Nicolet National Forest5,255
Wyoming (13)
AreaForestAcres
Beartooth Proposed WildernessShoshone National Forest16,837
Cloud Peak ContiguousBighorn National Forest113,757
Middle ForkShoshone National Forest51,772
Pacific Creek - Blackrock CreekBridger-Teton National Forest24,658
Platte River AdditionMedicine Bow-Routt National Forest7,962
South Beartooth HighwayShoshone National Forest105,570
Sulphur CreekShoshone National Forest30,221
Teton Corridor TrailheadsBridger-Teton National Forest286
Walker PrairieBighorn National Forest62,434
West Slope TetonsTarghee National Forest47,448
West Slope WindsBridger-Teton National Forest143,252
Windy MountainShoshone National Forest31,283
Winegar HoleTarghee National Forest247
References (2)
  1. Flora of North America Editorial Committee (FNA). 2005. Flora of North America north of Mexico. Vol. 5. Magnoliophyta: Caryophyllidae: Caryophyllales, Polygonales, and Plumbaginales. Oxford Univ. Press, New York. vii + 656 pp.
  2. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.