Index / Search / Ambrosia trifida var. trifida
§1 Plant
Ambrosia trifida L. var. trifida
vernacular great ragweed — variety · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb, Subshrub
- Duration
- Annual
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Ambrosia
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 953 counties across 41 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 953 counties across 41 states/territories.
Alabama view state ↗ 9 N ▾
Arkansas view state ↗ 57 N ▾
- Arkansas 05001
- Ashley 05003
- Baxter 05005
- Benton 05007
- Boone 05009
- Bradley 05011
- Calhoun 05013
- Carroll 05015
- Chicot 05017
- Clark 05019
- Cleburne 05023
- Cleveland 05025
- Conway 05029
- Craighead 05031
- Crawford 05033
- Crittenden 05035
- Desha 05041
- Drew 05043
- Faulkner 05045
- Franklin 05047
- Fulton 05049
- Greene 05055
- Hempstead 05057
- Hot Spring 05059
- Howard 05061
- Independence 05063
- Jefferson 05069
- Johnson 05071
- Lafayette 05073
- Lawrence 05075
- Lee 05077
- Lincoln 05079
- Little River 05081
- Logan 05083
- Madison 05087
- Marion 05089
- Miller 05091
- Mississippi 05093
- Monroe 05095
- Montgomery 05097
- Newton 05101
- Ouachita 05103
- Poinsett 05111
- Pope 05115
- Pulaski 05119
- Randolph 05121
- Saline 05125
- Scott 05127
- Searcy 05129
- Sharp 05135
- St. Francis 05123
- Stone 05137
- Union 05139
- Van Buren 05141
- Washington 05143
- White 05145
- Woodruff 05147
California view state ↗ 5 N ▾
Colorado view state ↗ 15 N ▾
Delaware view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Florida view state ↗ 8 N ▾
Georgia view state ↗ 15 N ▾
Idaho view state ↗ 3 N ▾
Illinois view state ↗ 3 N ▾
Indiana view state ↗ 66 N ▾
- Allen 18003
- Bartholomew 18005
- Blackford 18009
- Brown 18013
- Carroll 18015
- Cass 18017
- Clark 18019
- Clay 18021
- Crawford 18025
- Daviess 18027
- DeKalb 18033
- Delaware 18035
- Elkhart 18039
- Floyd 18043
- Fountain 18045
- Fulton 18049
- Gibson 18051
- Grant 18053
- Greene 18055
- Hamilton 18057
- Hancock 18059
- Henry 18065
- Howard 18067
- Jackson 18071
- Jasper 18073
- Jay 18075
- Jefferson 18077
- Jennings 18079
- Johnson 18081
- Knox 18083
- Kosciusko 18085
- Lake 18089
- LaPorte 18091
- Lawrence 18093
- Madison 18095
- Marion 18097
- Monroe 18105
- Montgomery 18107
- Newton 18111
- Noble 18113
- Owen 18119
- Parke 18121
- Perry 18123
- Pike 18125
- Porter 18127
- Posey 18129
- Pulaski 18131
- Putnam 18133
- Randolph 18135
- Rush 18139
- St. Joseph 18141
- Steuben 18151
- Sullivan 18153
- Switzerland 18155
- Tippecanoe 18157
- Tipton 18159
- Vanderburgh 18163
- Vermillion 18165
- Vigo 18167
- Wabash 18169
- Warren 18171
- Warrick 18173
- Wayne 18177
- Wells 18179
- White 18181
- Whitley 18183
Iowa view state ↗ 19 N ▾
Kentucky view state ↗ 54 N ▾
- Allen 21003
- Anderson 21005
- Ballard 21007
- Barren 21009
- Bell 21013
- Bourbon 21017
- Bracken 21023
- Breckinridge 21027
- Bullitt 21029
- Butler 21031
- Calloway 21035
- Campbell 21037
- Carter 21043
- Clark 21049
- Clay 21051
- Crittenden 21055
- Edmonson 21061
- Fayette 21067
- Floyd 21071
- Fulton 21075
- Graves 21083
- Green 21087
- Hardin 21093
- Hart 21099
- Henry 21103
- Jefferson 21111
- Jessamine 21113
- Kenton 21117
- Laurel 21125
- Lee 21129
- Letcher 21133
- Lewis 21135
- Madison 21151
- Magoffin 21153
- Marion 21155
- McLean 21149
- Menifee 21165
- Montgomery 21173
- Nelson 21179
- Oldham 21185
- Owen 21187
- Pendleton 21191
- Perry 21193
- Pike 21195
- Powell 21197
- Rockcastle 21203
- Rowan 21205
- Scott 21209
- Spencer 21215
- Warren 21227
- Washington 21229
- Wayne 21231
- Wolfe 21237
- Woodford 21239
Maine view state ↗ 8 N ▾
Michigan view state ↗ 34 N ▾
- Allegan 26005
- Bay 26017
- Benzie 26019
- Berrien 26021
- Branch 26023
- Calhoun 26025
- Cass 26027
- Cheboygan 26031
- Chippewa 26033
- Clinton 26037
- Dickinson 26043
- Emmet 26047
- Hillsdale 26059
- Houghton 26061
- Ingham 26065
- Iron 26071
- Kalamazoo 26077
- Kent 26081
- Keweenaw 26083
- Lenawee 26091
- Macomb 26099
- Marquette 26103
- Monroe 26115
- Muskegon 26121
- Newaygo 26123
- Oakland 26125
- Ontonagon 26131
- Ottawa 26139
- Schoolcraft 26153
- St. Clair 26147
- St. Joseph 26149
- Tuscola 26157
- Washtenaw 26161
- Wayne 26163
Minnesota view state ↗ 60 N ▾
- Beltrami 27007
- Big Stone 27011
- Blue Earth 27013
- Carlton 27017
- Carver 27019
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Clearwater 27029
- Cook 27031
- Dakota 27037
- Dodge 27039
- Douglas 27041
- Faribault 27043
- Fillmore 27045
- Freeborn 27047
- Goodhue 27049
- Hennepin 27053
- Houston 27055
- Isanti 27059
- Itasca 27061
- Jackson 27063
- Kittson 27069
- Lac qui Parle 27073
- Lake 27075
- Lincoln 27081
- Lyon 27083
- Mahnomen 27087
- Martin 27091
- McLeod 27085
- Meeker 27093
- Mower 27099
- Murray 27101
- Nobles 27105
- Norman 27107
- Olmsted 27109
- Otter Tail 27111
- Pipestone 27117
- Polk 27119
- Pope 27121
- Ramsey 27123
- Redwood 27127
- Renville 27129
- Rice 27131
- Roseau 27135
- Scott 27139
- Sherburne 27141
- St. Louis 27137
- Stearns 27145
- Steele 27147
- Swift 27151
- Traverse 27155
- Wabasha 27157
- Waseca 27161
- Washington 27163
- Watonwan 27165
- Wilkin 27167
- Winona 27169
- Wright 27171
Mississippi view state ↗ 2 N ▾
Missouri view state ↗ 6 N ▾
Montana view state ↗ 14 N ▾
Nebraska view state ↗ 45 N ▾
- Adams 31001
- Banner 31007
- Boyd 31015
- Burt 31021
- Butler 31023
- Cass 31025
- Cherry 31031
- Cheyenne 31033
- Clay 31035
- Cuming 31039
- Dawes 31045
- Dawson 31047
- Dixon 31051
- Douglas 31055
- Furnas 31065
- Gage 31067
- Hamilton 31081
- Harlan 31083
- Hitchcock 31087
- Holt 31089
- Howard 31093
- Jefferson 31095
- Kimball 31105
- Knox 31107
- Lancaster 31109
- Lincoln 31111
- Merrick 31121
- Nance 31125
- Otoe 31131
- Pawnee 31133
- Phelps 31137
- Platte 31141
- Red Willow 31145
- Richardson 31147
- Sarpy 31153
- Saunders 31155
- Scotts Bluff 31157
- Seward 31159
- Sioux 31165
- Thurston 31173
- Valley 31175
- Washington 31177
- Wayne 31179
- Webster 31181
- York 31185
New Hampshire view state ↗ 6 N ▾
New Jersey view state ↗ 13 N ▾
New Mexico view state ↗ 2 N ▾
New York view state ↗ 26 N ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Columbia 36021
- Delaware 36025
- Erie 36029
- Kings 36047
- Livingston 36051
- Madison 36053
- Monroe 36055
- Nassau 36059
- Oneida 36065
- Orange 36071
- Putnam 36079
- Rensselaer 36083
- Rockland 36087
- Schuyler 36097
- St. Lawrence 36089
- Suffolk 36103
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
North Carolina view state ↗ 49 N ▾
- Alamance 37001
- Alexander 37003
- Alleghany 37005
- Anson 37007
- Ashe 37009
- Avery 37011
- Burke 37023
- Cabarrus 37025
- Caldwell 37027
- Caswell 37033
- Catawba 37035
- Chatham 37037
- Cherokee 37039
- Clay 37043
- Cleveland 37045
- Davidson 37057
- Durham 37063
- Forsyth 37067
- Franklin 37069
- Gaston 37071
- Graham 37075
- Granville 37077
- Guilford 37081
- Halifax 37083
- Haywood 37087
- Henderson 37089
- Iredell 37097
- Jackson 37099
- Lee 37105
- Lincoln 37109
- Madison 37115
- McDowell 37111
- Mecklenburg 37119
- Mitchell 37121
- Montgomery 37123
- Northampton 37131
- Orange 37135
- Person 37145
- Randolph 37151
- Rockingham 37157
- Rowan 37159
- Stanly 37167
- Stokes 37169
- Surry 37171
- Swain 37173
- Wake 37183
- Warren 37185
- Watauga 37189
- Yancey 37199
North Dakota view state ↗ 40 N ▾
- Barnes 38003
- Benson 38005
- Billings 38007
- Bottineau 38009
- Bowman 38011
- Burleigh 38015
- Cass 38017
- Cavalier 38019
- Divide 38023
- Dunn 38025
- Emmons 38029
- Grand Forks 38035
- Grant 38037
- Griggs 38039
- Kidder 38043
- LaMoure 38045
- Logan 38047
- McHenry 38049
- McIntosh 38051
- McKenzie 38053
- McLean 38055
- Mercer 38057
- Morton 38059
- Mountrail 38061
- Nelson 38063
- Pembina 38067
- Pierce 38069
- Ramsey 38071
- Ransom 38073
- Richland 38077
- Sargent 38081
- Sheridan 38083
- Slope 38087
- Stark 38089
- Steele 38091
- Stutsman 38093
- Traill 38097
- Walsh 38099
- Ward 38101
- Williams 38105
Ohio view state ↗ 64 N ▾
- Allen 39003
- Ashtabula 39007
- Athens 39009
- Auglaize 39011
- Belmont 39013
- Butler 39017
- Carroll 39019
- Champaign 39021
- Clark 39023
- Clermont 39025
- Columbiana 39029
- Coshocton 39031
- Cuyahoga 39035
- Darke 39037
- Defiance 39039
- Erie 39043
- Fairfield 39045
- Franklin 39049
- Gallia 39053
- Geauga 39055
- Greene 39057
- Hamilton 39061
- Hancock 39063
- Harrison 39067
- Henry 39069
- Highland 39071
- Hocking 39073
- Holmes 39075
- Huron 39077
- Jackson 39079
- Jefferson 39081
- Knox 39083
- Licking 39089
- Logan 39091
- Lorain 39093
- Madison 39097
- Mahoning 39099
- Marion 39101
- Medina 39103
- Meigs 39105
- Miami 39109
- Monroe 39111
- Montgomery 39113
- Morgan 39115
- Muskingum 39119
- Noble 39121
- Ottawa 39123
- Perry 39127
- Portage 39133
- Richland 39139
- Ross 39141
- Sandusky 39143
- Scioto 39145
- Shelby 39149
- Stark 39151
- Summit 39153
- Trumbull 39155
- Tuscarawas 39157
- Union 39159
- Vinton 39163
- Washington 39167
- Wayne 39169
- Williams 39171
- Wood 39173
Oklahoma view state ↗ 1 N ▾
Oregon view state ↗ 1 N ▾
Pennsylvania view state ↗ 61 N ▾
- Adams 42001
- Allegheny 42003
- Armstrong 42005
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Butler 42019
- Cambria 42021
- Carbon 42025
- Centre 42027
- Chester 42029
- Clarion 42031
- Clearfield 42033
- Clinton 42035
- Columbia 42037
- Crawford 42039
- Cumberland 42041
- Dauphin 42043
- Delaware 42045
- Elk 42047
- Erie 42049
- Fayette 42051
- Forest 42053
- Franklin 42055
- Fulton 42057
- Greene 42059
- Huntingdon 42061
- Indiana 42063
- Jefferson 42065
- Juniata 42067
- Lackawanna 42069
- Lancaster 42071
- Lawrence 42073
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Mifflin 42087
- Monroe 42089
- Montgomery 42091
- Montour 42093
- Northampton 42095
- Northumberland 42097
- Perry 42099
- Philadelphia 42101
- Pike 42103
- Schuylkill 42107
- Snyder 42109
- Somerset 42111
- Sullivan 42113
- Susquehanna 42115
- Union 42119
- Venango 42121
- Warren 42123
- Washington 42125
- Wayne 42127
- Westmoreland 42129
- Wyoming 42131
- York 42133
Rhode Island view state ↗ 1 N ▾
South Carolina view state ↗ 13 N ▾
South Dakota view state ↗ 24 N ▾
- Brookings 46011
- Buffalo 46017
- Campbell 46021
- Codington 46029
- Corson 46031
- Davison 46035
- Day 46037
- Douglas 46043
- Fall River 46047
- Gregory 46053
- Hamlin 46057
- Harding 46063
- Hughes 46065
- Hyde 46069
- Lawrence 46081
- Lincoln 46083
- Meade 46093
- Pennington 46103
- Perkins 46105
- Roberts 46109
- Sanborn 46111
- Stanley 46117
- Union 46127
- Yankton 46135
Tennessee view state ↗ 37 N ▾
- Bledsoe 47007
- Blount 47009
- Campbell 47013
- Carter 47019
- Cumberland 47035
- Davidson 47037
- Dickson 47043
- Franklin 47051
- Grainger 47057
- Grundy 47061
- Hamilton 47065
- Hardin 47071
- Hawkins 47073
- Haywood 47075
- Humphreys 47085
- Knox 47093
- Lake 47095
- Lauderdale 47097
- Macon 47111
- Madison 47113
- Marion 47115
- Marshall 47117
- McMinn 47107
- Monroe 47123
- Montgomery 47125
- Obion 47131
- Perry 47135
- Roane 47145
- Rutherford 47149
- Scott 47151
- Sevier 47155
- Stewart 47161
- Sumner 47165
- Tipton 47167
- Trousdale 47169
- Washington 47179
- Williamson 47187
Utah view state ↗ 2 N ▾
Vermont view state ↗ 7 N ▾
Virginia view state ↗ 78 N ▾
- Accomack 51001
- Albemarle 51003
- Alleghany 51005
- Amelia 51007
- Amherst 51009
- Appomattox 51011
- Arlington 51013
- Augusta 51015
- Bath 51017
- Bedford 51019
- Bland 51021
- Botetourt 51023
- Brunswick 51025
- Buchanan 51027
- Buckingham 51029
- Campbell 51031
- Carroll 51035
- Charlotte 51037
- Chesterfield 51041
- Clarke 51043
- Craig 51045
- Culpeper 51047
- Cumberland 51049
- Dickenson 51051
- Dinwiddie 51053
- Fairfax 51059
- Fauquier 51061
- Floyd 51063
- Fluvanna 51065
- Franklin 51067
- Frederick 51069
- Giles 51071
- Goochland 51075
- Grayson 51077
- Greene 51079
- Halifax 51083
- Hanover 51085
- Henrico 51087
- Henry 51089
- Highland 51091
- King George 51099
- Lee 51105
- Loudoun 51107
- Louisa 51109
- Lunenburg 51111
- Madison 51113
- Mecklenburg 51117
- Montgomery 51121
- Nelson 51125
- Northampton 51131
- Nottoway 51135
- Orange 51137
- Page 51139
- Patrick 51141
- Pittsylvania 51143
- Powhatan 51145
- Prince Edward 51147
- Prince William 51153
- Pulaski 51155
- Rappahannock 51157
- Richmond 51159
- Roanoke 51161
- Rockbridge 51163
- Rockingham 51165
- Russell 51167
- Scott 51169
- Shenandoah 51171
- Southampton 51175
- Spotsylvania 51177
- Stafford 51179
- Surry 51181
- Tazewell 51185
- Virginia Beach (city) 51810
- Warren 51187
- Washington 51191
- Westmoreland 51193
- Wise 51195
- Wythe 51197
Washington view state ↗ 2 N ▾
West Virginia view state ↗ 40 N ▾
- Barbour 54001
- Braxton 54007
- Brooke 54009
- Calhoun 54013
- Clay 54015
- Fayette 54019
- Gilmer 54021
- Grant 54023
- Greenbrier 54025
- Hampshire 54027
- Hancock 54029
- Hardy 54031
- Harrison 54033
- Jackson 54035
- Jefferson 54037
- Kanawha 54039
- Logan 54045
- Marion 54049
- Mason 54053
- McDowell 54047
- Mineral 54057
- Monongalia 54061
- Monroe 54063
- Nicholas 54067
- Ohio 54069
- Pocahontas 54075
- Putnam 54079
- Raleigh 54081
- Randolph 54083
- Ritchie 54085
- Roane 54087
- Summers 54089
- Taylor 54091
- Tucker 54093
- Upshur 54097
- Wayne 54099
- Wetzel 54103
- Wirt 54105
- Wood 54107
- Wyoming 54109
Wisconsin view state ↗ 52 N ▾
- Ashland 55003
- Barron 55005
- Bayfield 55007
- Brown 55009
- Buffalo 55011
- Calumet 55015
- Clark 55019
- Columbia 55021
- Crawford 55023
- Dane 55025
- Dodge 55027
- Douglas 55031
- Eau Claire 55035
- Fond du Lac 55039
- Forest 55041
- Grant 55043
- Green 55045
- Iowa 55049
- Iron 55051
- Jackson 55053
- Jefferson 55055
- Kenosha 55059
- La Crosse 55063
- Lafayette 55065
- Lincoln 55069
- Marinette 55075
- Marquette 55077
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Outagamie 55087
- Ozaukee 55089
- Pepin 55091
- Pierce 55093
- Polk 55095
- Racine 55101
- Richland 55103
- Rock 55105
- Rusk 55107
- Sauk 55111
- Sawyer 55113
- Shawano 55115
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Trempealeau 55121
- Vernon 55123
- Walworth 55127
- Washington 55131
- Waukesha 55133
- Waushara 55137
- Winnebago 55139
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMTRT2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/10557076 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z