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Dotted Smartweed

Persicaria punctata

In the Carolinas and Georgia, found in swamp forests, bottomlands, marshes. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

75
Strong

Native to Arkansas. How scores work Is it native here?

Profile 94%

Height
1–2.5 feet
Light
Partial shade, Full shade, Full sun
Soil moisture
Dry to wet
Will it fit your yard?

At a glance

Life cycle
Annual or perennial
Bloom
July to November

Not yet recorded · Spread · Leaves

Recorded in 37 Arkansas counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 3

Swamps

The Land of Evangeline
Joseph Rusling Meeker, The Land of Evangeline (1874): moss-hung trees over a still bayou in Louisiana swamp forest. Regional view: the painting does not name the exact site. Shown: Louisiana bayou country (Meeker, The Land of Evangeline, 1874), a neighboring state.The Land of Evangeline, Joseph Rusling Meeker, 1874. Public domain. Source record. scaled to 1280 x 923 by the Wikimedia thumbnailer from 4096 x 2953; no crop or other change

Floodplain and bottomland forests

Forests on low ground beside rivers and streams that flood from time to time.

Freshwater marshes

Open, herb-covered wetlands with fresh, non-tidal water.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Arkansas. Shared habitat, not food. 71 animals.

Widespread birds also seen here (81)

Found in many habitats here, so not listed above.

All wildlife of Arkansas

Ecological relationships

Who uses this plant?

What these records mean

43CaterpillarsGenus host records with ranges including AR

Genus host records with ranges including AR · Polygonum

  • Achyra rantalisGarden Webworm Moth
  • Acronicta insularisHenry's Marsh Moth, Cattail Caterpillar
  • Acronicta oblinitaSmeared Dagger
  • Anticlea multiferataMany-Lined Carpet
  • Apantesis argeArge Tiger Moth
  • Apantesis naisNais Tiger Moth
  • Archips semiferanusOak Leafroller Moth
  • Calothysanis amaturariaCross-Lined Wave
  • Chionodes discoocellellaEyeringed Chionodes
  • Costaconvexa centrostrigariaBent-Lined Carpet
Show all 43
  • Dypterygia rozmaniAmerican Bird's-Wing
  • Elophila icciusalisPondside Pyralid, Pondside Crambid
  • Elophila obliteralisWaterlily Leafcutter Moth
  • Emmelina monodactylaMorning-Glory Plume Moth
  • Epiblema otiosanaBidens Borer Moth
  • Eusarca confusariaConfused Eusarca
  • Feltia subterraneaSubterranean Dart, Granulate Cutworm
  • Haematopis gratariaChickweed Geometer
  • Helicoverpa zeaCorn Earworm Moth
  • Homophoberia apicosaBlack Wedge-Spot, Smartweed Groundling
  • Hyles lineataWhite-Lined Sphinx
  • Hypena scabraGreen Cloverworm Bomolocha, Black Snout
  • Maliattha synochitisBlack-Dotted Lithacodia, Black-Dotted Glyph, Brass-Dotted Grass Moth
  • Melanchra pictaPainted Arches, Zebra Caterpillar Moth
  • Melanolophia canadariaCanadian Melanolphia, Variable Redmarked Looper
  • Metarranthis duariaRuddy Metarranthis
  • Nephelodes miniansBronzed Cutworm
  • Nomophila nearcticaLucerne Moth, American Celery Webworm
  • Orthonama obstipataThe Gem
  • Ostrinia obumbratalisSmartweed Borer
  • Ostrinia penitalisAmerican Lotus Borer, Lily Moth
  • Parapoynx obscuralisObscure Pondweed Moth
  • Patania silicalisHerbivorous Patania, Herbivorous Pleuroptya
  • Prochoerodes lineolaLarge Maple Spanworm Moth
  • Pseudeustrotia carneolaPink-Barred Lithacodia, Pink-Barred Pseudeustrotia
  • Pyrrhia exprimensPurple-Lined Sallow, Purple-Lined Sun Moth
  • Saucrobotys futilalisDogbane Saucrobotys
  • Schinia spinosaeSpinose Flower Moth
  • Scopula limboundataLarge Lace-Border
  • Spilosoma congruaAgreeable Tiger Moth
  • Spilosoma virginicaVirginian Tiger Moth, Yellow Woolybear Moth, Yellow Bear
  • Strymon melinusGray Hairstreak
  • Tharsalea hyllusBronze Copper
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
34BeesSoutheastern regional records

Southeastern regional records · Persicaria

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
15BirdsRecorded eating Persicaria in Arkansas

Diet records by plant genus, from studies across North America. Not a record from this state. Birds whose range includes Arkansas, most records first.

Show all 15
Avian Diet Database (Hurlbert Lab)

Direct food only. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Birds that eat Persicaria 15

Diet records by plant genus, from studies across North America. Not a record from this state. Avian Diet Database (Hurlbert Lab), CC0 1.0.

Growing and identification

Plant details

Family
Polygonaceae
Flower color
White or green

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Polygonum punctatum; Polygonum punctatum var. confertiflorum; Polygonum punctatum var. punctatum; knotweed

Conservation status

Arkansas rankSNR
Global rankG5
AR statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources