Index / Search / Polygonum ramosissimum

§1 Plant

Polygonum ramosissimum Michx.

vernacular bushy knotweed — species · Polygonaceae


USDA
PORA3
GBIF
5334383
Rank
species
bushy knotweed (Polygonum ramosissimum)
Platephotograph · William Van HemessenCC 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 Introduced
  • CAN Canada Native
  • L48 Lower 48 States Native
§2b

County-level range

· 654 counties across 35 states/territories
Legend Native · 653 Introduced · 1 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 654 counties across 35 states/territories.

Alaska view state ↗ 1 I
Arizona view state ↗ 3 N
Arkansas view state ↗ 7 N
Colorado view state ↗ 25 N
Delaware view state ↗ 3 N
District of Columbia view state ↗ 1 N
Illinois view state ↗ 63 N
Indiana view state ↗ 11 N
Iowa view state ↗ 15 N
Kansas view state ↗ 102 N
Kentucky view state ↗ 1 N
Louisiana view state ↗ 13 N
Maine view state ↗ 11 N
Maryland view state ↗ 2 N
Massachusetts view state ↗ 10 N
Michigan view state ↗ 14 N
Minnesota view state ↗ 37 N
Missouri view state ↗ 45 N
Montana view state ↗ 17 N
Nebraska view state ↗ 47 N
New Hampshire view state ↗ 3 N
New Jersey view state ↗ 11 N
New Mexico view state ↗ 7 N
New York view state ↗ 22 N
North Dakota view state ↗ 44 N
Ohio view state ↗ 2 N
Oklahoma view state ↗ 18 N
Pennsylvania view state ↗ 3 N
Rhode Island view state ↗ 5 N
South Dakota view state ↗ 28 N
Tennessee view state ↗ 4 N
Texas view state ↗ 47 N
Vermont view state ↗ 1 N
Virginia view state ↗ 7 N
Wisconsin view state ↗ 24 N

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/PORA3 ↗

GBIF Backbone

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

gbif.org/species/5334383 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T10:50:45Z