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§1 Plant

Polygonum punctatum Elliott

vernacular dotted smartweed — species · Polygonaceae

USDA
POPU5
GBIF
10779688
Rank
species
dotted smartweed (Polygonum punctatum)
Platephotograph · aarongunnarCC BY source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb
Duration
Annual, Perennial
Group
Dicot
Family
Polygonaceae Juss.
Genus
Polygonum
§2a

Native status, by region

  • CAN Canada Native
  • HI Hawaii Introduced
  • L48 Lower 48 States Native
  • PR Puerto Rico Native
§2b

County-level range

· 1,568 counties across 45 states/territories
Legend Native · 1567 Introduced · 1 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
Low
Shade
High
Moisture use
Medium
Fire
High
Salinity
Medium
Anaerobic
High
CaCO₃
Medium
Hedging
None
§3b

Climate & soil

Cold tolerance
32 °F minimum
Frost-free days
110 min.
Precipitation
12–60 in/yr
pH range
6–8.7
Root depth
14 in min.
Fertility need
Low
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Single Crown
Growth rate
Moderate
Lifespan
Short
Mature height
3.2 ft
Foliage texture
Medium
Foliage colour
Green
Porosity (summer)
Moderate
Porosity (winter)
Porous
Flower colour
White
Fruit colour
Black
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Summer
Seed abundance
Medium
Seed begins
Summer
Seed ends
Fall
Spread rate
Rapid
Stratify
No
Seeds / lb
125,000
Propagation
seed
§3e

Use & availability

Commercial availability
Routinely Available
Nursery stock
No
Graze palatability
Low
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 1,568 counties across 45 states/territories.

Alabama view state ↗ 17 N ▾
Arizona view state ↗ 7 N ▾
Arkansas view state ↗ 42 N ▾
California view state ↗ 42 N ▾
Colorado view state ↗ 2 N ▾
Delaware view state ↗ 3 N ▾
District of Columbia view state ↗ 1 N ▾
Florida view state ↗ 62 N ▾
Georgia view state ↗ 34 N ▾
Hawaii view state ↗ 1 I ▾
Idaho view state ↗ 6 N ▾
Illinois view state ↗ 101 N ▾
Indiana view state ↗ 73 N ▾
Iowa view state ↗ 19 N ▾
Kansas view state ↗ 70 N ▾
Kentucky view state ↗ 68 N ▾
Louisiana view state ↗ 63 N ▾
Maine view state ↗ 12 N ▾
Maryland view state ↗ 1 N ▾
Massachusetts view state ↗ 14 N ▾
Michigan view state ↗ 46 N ▾
Minnesota view state ↗ 50 N ▾
Mississippi view state ↗ 19 N ▾
Missouri view state ↗ 97 N ▾
Montana view state ↗ 2 N ▾
Nebraska view state ↗ 42 N ▾
New Hampshire view state ↗ 7 N ▾
New Jersey view state ↗ 19 N ▾
New York view state ↗ 47 N ▾
North Carolina view state ↗ 77 N ▾
North Dakota view state ↗ 1 N ▾
Ohio view state ↗ 62 N ▾
Oklahoma view state ↗ 26 N ▾
Oregon view state ↗ 9 N ▾
Pennsylvania view state ↗ 62 N ▾
Rhode Island view state ↗ 4 N ▾
South Carolina view state ↗ 29 N ▾
South Dakota view state ↗ 3 N ▾
Tennessee view state ↗ 63 N ▾
Texas view state ↗ 62 N ▾
Vermont view state ↗ 8 N ▾
Virginia view state ↗ 91 N ▾
Washington view state ↗ 8 N ▾
West Virginia view state ↗ 36 N ▾
Wisconsin view state ↗ 60 N ▾

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/POPU5 ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/10779688 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T20:46:58Z