Index / Search / Polygonum arenastrum
§1 Plant
Polygonum arenastrum Jord. ex Boreau
vernacular oval-leaf knotweed — species · Polygonaceae
§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
- HI Hawaii Introduced
- L48 Lower 48 States Introduced
- VI U.S. Virgin Islands Introduced
§2b
County-level range
· 783 counties across 30 states/territories§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 783 counties across 30 states/territories.
Arkansas view state ↗ 3 I ▾
California view state ↗ 54 I ▾
- Alameda 06001
- Alpine 06003
- Butte 06007
- Colusa 06011
- Contra Costa 06013
- Del Norte 06015
- El Dorado 06017
- Fresno 06019
- Glenn 06021
- Humboldt 06023
- Imperial 06025
- Inyo 06027
- Kern 06029
- Lake 06033
- Lassen 06035
- Los Angeles 06037
- Madera 06039
- Marin 06041
- Mariposa 06043
- Mendocino 06045
- Merced 06047
- Modoc 06049
- Mono 06051
- Monterey 06053
- Napa 06055
- Nevada 06057
- Orange 06059
- Placer 06061
- Plumas 06063
- Riverside 06065
- Sacramento 06067
- San Benito 06069
- San Bernardino 06071
- San Diego 06073
- San Francisco 06075
- San Joaquin 06077
- San Luis Obispo 06079
- San Mateo 06081
- Santa Barbara 06083
- Santa Clara 06085
- Santa Cruz 06087
- Shasta 06089
- Sierra 06091
- Siskiyou 06093
- Solano 06095
- Sonoma 06097
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Trinity 06105
- Tulare 06107
- Tuolumne 06109
- Ventura 06111
- Yolo 06113
Colorado view state ↗ 33 I ▾
- Alamosa 08003
- Archuleta 08007
- Boulder 08013
- Cheyenne 08017
- Conejos 08021
- El Paso 08041
- Fremont 08043
- Garfield 08045
- Gilpin 08047
- Grand 08049
- Gunnison 08051
- Huerfano 08055
- Jackson 08057
- Jefferson 08059
- La Plata 08067
- Larimer 08069
- Las Animas 08071
- Logan 08075
- Mesa 08077
- Mineral 08079
- Moffat 08081
- Montezuma 08083
- Montrose 08085
- Park 08093
- Phillips 08095
- Pitkin 08097
- Pueblo 08101
- Rio Blanco 08103
- Routt 08107
- San Miguel 08113
- Teller 08119
- Washington 08121
- Weld 08123
Illinois view state ↗ 102 I ▾
- Adams 17001
- Alexander 17003
- Bond 17005
- Boone 17007
- Brown 17009
- Bureau 17011
- Calhoun 17013
- Carroll 17015
- Cass 17017
- Champaign 17019
- Christian 17021
- Clark 17023
- Clay 17025
- Clinton 17027
- Coles 17029
- Cook 17031
- Crawford 17033
- Cumberland 17035
- De Witt 17039
- DeKalb 17037
- Douglas 17041
- DuPage 17043
- Edgar 17045
- Edwards 17047
- Effingham 17049
- Fayette 17051
- Ford 17053
- Franklin 17055
- Fulton 17057
- Gallatin 17059
- Greene 17061
- Grundy 17063
- Hamilton 17065
- Hancock 17067
- Hardin 17069
- Henderson 17071
- Henry 17073
- Iroquois 17075
- Jackson 17077
- Jasper 17079
- Jefferson 17081
- Jersey 17083
- Jo Daviess 17085
- Johnson 17087
- Kane 17089
- Kankakee 17091
- Kendall 17093
- Knox 17095
- Lake 17097
- LaSalle 17099
- Lawrence 17101
- Lee 17103
- Livingston 17105
- Logan 17107
- Macon 17115
- Macoupin 17117
- Madison 17119
- Marion 17121
- Marshall 17123
- Mason 17125
- Massac 17127
- McDonough 17109
- McHenry 17111
- McLean 17113
- Menard 17129
- Mercer 17131
- Monroe 17133
- Montgomery 17135
- Morgan 17137
- Moultrie 17139
- Ogle 17141
- Peoria 17143
- Perry 17145
- Piatt 17147
- Pike 17149
- Pope 17151
- Pulaski 17153
- Putnam 17155
- Randolph 17157
- Richland 17159
- Rock Island 17161
- Saline 17165
- Sangamon 17167
- Schuyler 17169
- Scott 17171
- Shelby 17173
- St. Clair 17163
- Stark 17175
- Stephenson 17177
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Wabash 17185
- Warren 17187
- Washington 17189
- Wayne 17191
- White 17193
- Whiteside 17195
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 7 I ▾
Iowa view state ↗ 18 I ▾
Kansas view state ↗ 105 I ▾
- Allen 20001
- Anderson 20003
- Atchison 20005
- Barber 20007
- Barton 20009
- Bourbon 20011
- Brown 20013
- Butler 20015
- Chase 20017
- Chautauqua 20019
- Cherokee 20021
- Cheyenne 20023
- Clark 20025
- Clay 20027
- Cloud 20029
- Coffey 20031
- Comanche 20033
- Cowley 20035
- Crawford 20037
- Decatur 20039
- Dickinson 20041
- Doniphan 20043
- Douglas 20045
- Edwards 20047
- Elk 20049
- Ellis 20051
- Ellsworth 20053
- Finney 20055
- Ford 20057
- Franklin 20059
- Geary 20061
- Gove 20063
- Graham 20065
- Grant 20067
- Gray 20069
- Greeley 20071
- Greenwood 20073
- Hamilton 20075
- Harper 20077
- Harvey 20079
- Haskell 20081
- Hodgeman 20083
- Jackson 20085
- Jefferson 20087
- Jewell 20089
- Johnson 20091
- Kearny 20093
- Kingman 20095
- Kiowa 20097
- Labette 20099
- Lane 20101
- Leavenworth 20103
- Lincoln 20105
- Linn 20107
- Logan 20109
- Lyon 20111
- Marion 20115
- Marshall 20117
- McPherson 20113
- Meade 20119
- Miami 20121
- Mitchell 20123
- Montgomery 20125
- Morris 20127
- Morton 20129
- Nemaha 20131
- Neosho 20133
- Ness 20135
- Norton 20137
- Osage 20139
- Osborne 20141
- Ottawa 20143
- Pawnee 20145
- Phillips 20147
- Pottawatomie 20149
- Pratt 20151
- Rawlins 20153
- Reno 20155
- Republic 20157
- Rice 20159
- Riley 20161
- Rooks 20163
- Rush 20165
- Russell 20167
- Saline 20169
- Scott 20171
- Sedgwick 20173
- Seward 20175
- Shawnee 20177
- Sheridan 20179
- Sherman 20181
- Smith 20183
- Stafford 20185
- Stanton 20187
- Stevens 20189
- Sumner 20191
- Thomas 20193
- Trego 20195
- Wabaunsee 20197
- Wallace 20199
- Washington 20201
- Wichita 20203
- Wilson 20205
- Woodson 20207
- Wyandotte 20209
Kentucky view state ↗ 14 I ▾
Minnesota view state ↗ 52 I ▾
- Anoka 27003
- Becker 27005
- Big Stone 27011
- Blue Earth 27013
- Brown 27015
- Carlton 27017
- Cass 27021
- Chippewa 27023
- Clay 27027
- Clearwater 27029
- Cook 27031
- Crow Wing 27035
- Dakota 27037
- Faribault 27043
- Goodhue 27049
- Hennepin 27053
- Houston 27055
- Hubbard 27057
- Isanti 27059
- Itasca 27061
- Kandiyohi 27067
- Kittson 27069
- Koochiching 27071
- Lac qui Parle 27073
- Lake 27075
- Lake of the Woods 27077
- Le Sueur 27079
- Lincoln 27081
- Lyon 27083
- Martin 27091
- McLeod 27085
- Mille Lacs 27095
- Nobles 27105
- Olmsted 27109
- Otter Tail 27111
- Pennington 27113
- Pipestone 27117
- Polk 27119
- Ramsey 27123
- Redwood 27127
- Rice 27131
- Roseau 27135
- Scott 27139
- St. Louis 27137
- Stearns 27145
- Todd 27153
- Traverse 27155
- Wabasha 27157
- Washington 27163
- Wilkin 27167
- Winona 27169
- Wright 27171
Mississippi view state ↗ 15 I ▾
Missouri view state ↗ 39 I ▾
- Adair 29001
- Barry 29009
- Benton 29015
- Boone 29019
- Carroll 29033
- Cedar 29039
- Christian 29043
- Clay 29047
- Cooper 29053
- Dallas 29059
- Douglas 29067
- Greene 29077
- Harrison 29081
- Holt 29087
- Howard 29089
- Jackson 29095
- Jasper 29097
- Johnson 29101
- Laclede 29105
- Lawrence 29109
- Linn 29115
- Livingston 29117
- Madison 29123
- Mercer 29129
- Moniteau 29135
- Monroe 29137
- Newton 29145
- Nodaway 29147
- Ozark 29153
- Pike 29163
- Putnam 29171
- Randolph 29175
- Ray 29177
- Saline 29195
- St. Clair 29185
- Sullivan 29211
- Taney 29213
- Webster 29225
- Worth 29227
Montana view state ↗ 11 I ▾
Nebraska view state ↗ 51 I ▾
- Banner 31007
- Blaine 31009
- Box Butte 31013
- Boyd 31015
- Brown 31017
- Buffalo 31019
- Cass 31025
- Cedar 31027
- Chase 31029
- Cherry 31031
- Cheyenne 31033
- Clay 31035
- Colfax 31037
- Cuming 31039
- Custer 31041
- Dawes 31045
- Deuel 31049
- Dixon 31051
- Dodge 31053
- Douglas 31055
- Dundy 31057
- Fillmore 31059
- Franklin 31061
- Garfield 31071
- Hall 31079
- Harlan 31083
- Hitchcock 31087
- Holt 31089
- Hooker 31091
- Howard 31093
- Kearney 31099
- Kimball 31105
- Lancaster 31109
- Nemaha 31127
- Otoe 31131
- Phelps 31137
- Red Willow 31145
- Richardson 31147
- Rock 31149
- Sarpy 31153
- Saunders 31155
- Scotts Bluff 31157
- Seward 31159
- Sheridan 31161
- Sioux 31165
- Thomas 31171
- Valley 31175
- Washington 31177
- Wayne 31179
- Webster 31181
- Wheeler 31183
Nevada view state ↗ 12 I ▾
New Jersey view state ↗ 7 I ▾
New Mexico view state ↗ 2 I ▾
New York view state ↗ 43 I ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Chenango 36017
- Clinton 36019
- Cortland 36023
- Delaware 36025
- Dutchess 36027
- Essex 36031
- Franklin 36033
- Genesee 36037
- Hamilton 36041
- Jefferson 36045
- Kings 36047
- Lewis 36049
- Livingston 36051
- Madison 36053
- Monroe 36055
- Nassau 36059
- New York 36061
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Oswego 36075
- Otsego 36077
- Putnam 36079
- Queens 36081
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- St. Lawrence 36089
- Suffolk 36103
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Westchester 36119
- Wyoming 36121
North Dakota view state ↗ 39 I ▾
- Adams 38001
- Barnes 38003
- Billings 38007
- Bottineau 38009
- Bowman 38011
- Burke 38013
- Burleigh 38015
- Cass 38017
- Cavalier 38019
- Dickey 38021
- Divide 38023
- Emmons 38029
- Golden Valley 38033
- Grand Forks 38035
- Griggs 38039
- Kidder 38043
- LaMoure 38045
- Logan 38047
- McHenry 38049
- McIntosh 38051
- McLean 38055
- Mercer 38057
- Morton 38059
- Pembina 38067
- Ramsey 38071
- Ransom 38073
- Renville 38075
- Richland 38077
- Rolette 38079
- Sargent 38081
- Sheridan 38083
- Slope 38087
- Stark 38089
- Steele 38091
- Stutsman 38093
- Walsh 38099
- Ward 38101
- Wells 38103
- Williams 38105
Ohio view state ↗ 3 I ▾
Oklahoma view state ↗ 20 I ▾
Oregon view state ↗ 11 I ▾
Pennsylvania view state ↗ 9 I ▾
South Dakota view state ↗ 35 I ▾
- Aurora 46003
- Brookings 46011
- Brown 46013
- Buffalo 46017
- Campbell 46021
- Charles Mix 46023
- Clay 46027
- Codington 46029
- Corson 46031
- Custer 46033
- Dewey 46041
- Edmunds 46045
- Fall River 46047
- Faulk 46049
- Hamlin 46057
- Hand 46059
- Hanson 46061
- Harding 46063
- Hughes 46065
- Hyde 46069
- Kingsbury 46077
- Lawrence 46081
- Lincoln 46083
- Meade 46093
- Minnehaha 46099
- Pennington 46103
- Perkins 46105
- Roberts 46109
- Sanborn 46111
- Spink 46115
- Stanley 46117
- Todd 46121
- Turner 46125
- Union 46127
- Walworth 46129
Texas view state ↗ 24 I ▾
- Bailey 48017
- Brewster 48043
- Carson 48065
- Castro 48069
- Clay 48077
- Dallam 48111
- Deaf Smith 48117
- Delta 48119
- Dickens 48125
- Gray 48179
- Hartley 48205
- Hemphill 48211
- Hockley 48219
- Lamb 48279
- Lipscomb 48295
- Lubbock 48303
- Moore 48341
- Ochiltree 48357
- Oldham 48359
- Parmer 48369
- Roberts 48393
- San Saba 48411
- Sherman 48421
- Wichita 48485
Utah view state ↗ 1 I ▾
Vermont view state ↗ 2 I ▾
Washington view state ↗ 1 I ▾
Wisconsin view state ↗ 52 I ▾
- Adams 55001
- Ashland 55003
- Bayfield 55007
- Buffalo 55011
- Calumet 55015
- Chippewa 55017
- Clark 55019
- Columbia 55021
- Crawford 55023
- Dane 55025
- Dodge 55027
- Eau Claire 55035
- Florence 55037
- Forest 55041
- Iowa 55049
- Jackson 55053
- Jefferson 55055
- Kewaunee 55061
- La Crosse 55063
- Lafayette 55065
- Lincoln 55069
- Manitowoc 55071
- Marathon 55073
- Marinette 55075
- Marquette 55077
- Menominee 55078
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Oneida 55085
- Outagamie 55087
- Pepin 55091
- Pierce 55093
- Polk 55095
- Racine 55101
- Richland 55103
- Rock 55105
- Sauk 55111
- Sawyer 55113
- Shawano 55115
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Trempealeau 55121
- Vernon 55123
- Walworth 55127
- Washburn 55129
- Washington 55131
- Waukesha 55133
- Waushara 55137
- Winnebago 55139
- Wood 55141
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/POAR11 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5334294 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z