Index / Search / Polygonum achoreum

§1 Plant

Polygonum achoreum S.F. Blake

vernacular leathery knotweed — species · Polygonaceae


USDA
POAC3
GBIF
5334386
Rank
species
leathery knotweed (Polygonum achoreum)
Platephotograph · lophozia17CC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

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

Native status, by region

  • AK Alaska Native
  • CAN Canada Native
  • L48 Lower 48 States Native
§2b

County-level range

· 258 counties across 19 states/territories
Legend Native · 258 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation

No cultivation specs.

USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.


§4Counties, by state

Recorded in 258 counties across 19 states/territories.

Alaska view state ↗ 2 N
Colorado view state ↗ 3 N
Idaho view state ↗ 7 N
Illinois view state ↗ 17 N
Iowa view state ↗ 18 N
Kansas view state ↗ 7 N
Kentucky view state ↗ 1 N
Maine view state ↗ 1 N
Michigan view state ↗ 22 N
Minnesota view state ↗ 45 N
Missouri view state ↗ 5 N
Montana view state ↗ 16 N
Nebraska view state ↗ 21 N
New York view state ↗ 15 N
North Dakota view state ↗ 38 N
Ohio view state ↗ 1 N
South Dakota view state ↗ 15 N
Vermont view state ↗ 3 N
Wisconsin view state ↗ 21 N

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/POAC3 ↗

GBIF Backbone

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

gbif.org/species/5334386 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T11:35:19Z