Index / Search / Polygonum persicaria
§1 Plant — species · Polygonaceae
Polygonum persicaria L.
vernacular spotted ladysthumb
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Perennial
- Group
- Dicot
- Family
- Polygonaceae Juss.
- Genus
- Polygonum
§2a
Native status, by region
- AK Alaska Introduced
- CAN Canada Introduced
- GL Greenland Introduced
- L48 Lower 48 States Introduced
- SPM St. Pierre & Miquelon Introduced
§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- High
- Moisture use
- Medium
- Fire
- Medium
- Salinity
- Low
- Anaerobic
- Medium
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- 32 °F minimum
- Frost-free days
- 110 min.
- Precipitation
- 14–60 in/yr
- pH range
- 4–8.5
- Root depth
- 14 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Short
- Mature height
- 3.2 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Red
- Fruit colour
- Black
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Spring
- Seed abundance
- Medium
- Seed begins
- Spring
- Seed ends
- Fall
- Spread rate
- Rapid
- Stratify
- No
- Seeds / lb
- 255,775
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Routinely Available
- Nursery stock
- No
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Montana distribution
Recorded in 26 of 56 Montana counties.
Introduced · 26 counties
- Big Horn 30003
- Carbon 30009
- Cascade 30013
- Custer 30017
- Flathead 30029
- Gallatin 30031
- Glacier 30035
- Golden Valley 30037
- Granite 30039
- Lake 30047
- Lewis and Clark 30049
- Liberty 30051
- Lincoln 30053
- Missoula 30063
- Phillips 30071
- Pondera 30073
- Powell 30077
- Ravalli 30081
- Roosevelt 30085
- Sanders 30089
- Stillwater 30095
- Sweet Grass 30097
- Teton 30099
- Toole 30101
- Treasure 30103
- Yellowstone 30111
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/POPE3 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/7600308 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-25
fetched 2026-05-25T16:28:53Z