Index / Search / Ambrosia psilostachya
§1 Plant
Ambrosia psilostachya DC.
vernacular Cuman ragweed — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual, Perennial
- 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
· 833 counties across 40 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 833 counties across 40 states/territories.
Alabama view state ↗ 3 N ▾
Arizona view state ↗ 8 N ▾
Arkansas view state ↗ 8 N ▾
California view state ↗ 36 N ▾
- Alameda 06001
- Butte 06007
- Colusa 06011
- Contra Costa 06013
- Glenn 06021
- Los Angeles 06037
- Marin 06041
- Mendocino 06045
- Merced 06047
- Monterey 06053
- Napa 06055
- Nevada 06057
- Orange 06059
- 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
- Solano 06095
- Sonoma 06097
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Tulare 06107
- Tuolumne 06109
- Ventura 06111
- Yolo 06113
- Yuba 06115
Colorado view state ↗ 25 N ▾
- Arapahoe 08005
- Baca 08009
- Boulder 08013
- Cheyenne 08017
- Crowley 08025
- Douglas 08035
- El Paso 08041
- Jackson 08057
- Jefferson 08059
- Kiowa 08061
- Kit Carson 08063
- Larimer 08069
- Las Animas 08071
- Lincoln 08073
- Logan 08075
- Mesa 08077
- Morgan 08087
- Otero 08089
- Prowers 08099
- San Juan 08111
- Sedgwick 08115
- Teller 08119
- Washington 08121
- Weld 08123
- Yuma 08125
Florida view state ↗ 10 N ▾
Georgia view state ↗ 3 N ▾
Idaho view state ↗ 7 N ▾
Illinois view state ↗ 41 N ▾
- Adams 17001
- Carroll 17015
- Cass 17017
- Champaign 17019
- Clinton 17027
- Cook 17031
- DeKalb 17037
- DuPage 17043
- Effingham 17049
- Greene 17061
- Grundy 17063
- Henderson 17071
- Henry 17073
- Jo Daviess 17085
- Kane 17089
- Kankakee 17091
- Kendall 17093
- Knox 17095
- Lake 17097
- LaSalle 17099
- Lee 17103
- Macoupin 17117
- Marshall 17123
- Mason 17125
- McHenry 17111
- Menard 17129
- Mercer 17131
- Morgan 17137
- Ogle 17141
- Peoria 17143
- Pike 17149
- Putnam 17155
- Rock Island 17161
- Scott 17171
- St. Clair 17163
- Tazewell 17179
- Whiteside 17195
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 8 N ▾
Iowa view state ↗ 12 N ▾
Kansas view state ↗ 105 N ▾
- 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
Louisiana view state ↗ 38 N ▾
- Acadia 22001
- Allen 22003
- Beauregard 22011
- Bienville 22013
- Bossier 22015
- Caddo 22017
- Calcasieu 22019
- Cameron 22023
- Claiborne 22027
- Concordia 22029
- De Soto 22031
- Evangeline 22039
- Grant 22043
- Iberia 22045
- Jackson 22049
- Jefferson 22051
- Lafayette 22055
- Lafourche 22057
- LaSalle 22059
- Livingston 22063
- Madison 22065
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Rapides 22079
- Red River 22081
- Richland 22083
- Sabine 22085
- St. John the Baptist 22095
- St. Mary 22101
- Tangipahoa 22105
- Tensas 22107
- Terrebonne 22109
- Vermilion 22113
- Vernon 22115
- Webster 22119
- Winn 22127
Maine view state ↗ 2 N ▾
Massachusetts view state ↗ 5 N ▾
Michigan view state ↗ 43 N ▾
- Alcona 26001
- Alger 26003
- Allegan 26005
- Alpena 26007
- Antrim 26009
- Baraga 26013
- Benzie 26019
- Berrien 26021
- Charlevoix 26029
- Cheboygan 26031
- Chippewa 26033
- Clare 26035
- Crawford 26039
- Delta 26041
- Dickinson 26043
- Emmet 26047
- Gogebic 26053
- Grand Traverse 26055
- Houghton 26061
- Kalamazoo 26077
- Kalkaska 26079
- Kent 26081
- Keweenaw 26083
- Lake 26085
- Leelanau 26089
- Luce 26095
- Mackinac 26097
- Manistee 26101
- Marquette 26103
- Mecosta 26107
- Menominee 26109
- Montcalm 26117
- Montmorency 26119
- Muskegon 26121
- Newaygo 26123
- Otsego 26137
- Ottawa 26139
- Presque Isle 26141
- Schoolcraft 26153
- St. Clair 26147
- St. Joseph 26149
- Van Buren 26159
- Wexford 26165
Minnesota view state ↗ 42 N ▾
- Anoka 27003
- Benton 27009
- Big Stone 27011
- Blue Earth 27013
- Carlton 27017
- Cass 27021
- Chippewa 27023
- Clay 27027
- Clearwater 27029
- Cook 27031
- Cottonwood 27033
- Dakota 27037
- Douglas 27041
- Fillmore 27045
- Goodhue 27049
- Hennepin 27053
- Houston 27055
- Itasca 27061
- Kittson 27069
- Lac qui Parle 27073
- Lake 27075
- Lincoln 27081
- Lyon 27083
- Marshall 27089
- Morrison 27097
- Norman 27107
- Otter Tail 27111
- Pennington 27113
- Pine 27115
- Pipestone 27117
- Polk 27119
- Ramsey 27123
- Sherburne 27141
- Sibley 27143
- St. Louis 27137
- Swift 27151
- Traverse 27155
- Wabasha 27157
- Washington 27163
- Wilkin 27167
- Winona 27169
- Wright 27171
Mississippi view state ↗ 1 N ▾
Missouri view state ↗ 26 N ▾
- Andrew 29003
- Atchison 29005
- Barton 29011
- Bates 29013
- Boone 29019
- Buchanan 29021
- Carroll 29033
- Cass 29037
- Clark 29045
- Clinton 29049
- DeKalb 29063
- Holt 29087
- Jackson 29095
- Jasper 29097
- Johnson 29101
- Marion 29127
- Montgomery 29139
- Phelps 29161
- Pike 29163
- Platte 29165
- Randolph 29175
- Saline 29195
- St. Charles 29183
- St. Clair 29185
- St. Francois 29187
- St. Louis 29189
Montana view state ↗ 13 N ▾
Nebraska view state ↗ 44 N ▾
- Antelope 31003
- Box Butte 31013
- Boyd 31015
- Brown 31017
- Cass 31025
- Chase 31029
- Cherry 31031
- Cheyenne 31033
- Cuming 31039
- Dawes 31045
- Dodge 31053
- Douglas 31055
- Dundy 31057
- Franklin 31061
- Furnas 31065
- Garden 31069
- Gosper 31073
- Greeley 31077
- Hall 31079
- Hamilton 31081
- Harlan 31083
- Hitchcock 31087
- Holt 31089
- Hooker 31091
- Keya Paha 31103
- Kimball 31105
- Lancaster 31109
- Lincoln 31111
- Merrick 31121
- Morrill 31123
- Nemaha 31127
- Otoe 31131
- Perkins 31135
- Red Willow 31145
- Richardson 31147
- Saunders 31155
- Scotts Bluff 31157
- Seward 31159
- Sheridan 31161
- Sioux 31165
- Valley 31175
- Washington 31177
- Webster 31181
- Wheeler 31183
Nevada view state ↗ 1 N ▾
New Hampshire view state ↗ 1 N ▾
New Jersey view state ↗ 1 N ▾
New Mexico view state ↗ 25 N ▾
- Bernalillo 35001
- Chaves 35005
- Cibola 35006
- Curry 35009
- De Baca 35011
- Dona Ana 35013
- Eddy 35015
- Grant 35017
- Guadalupe 35019
- Harding 35021
- Hidalgo 35023
- Lea 35025
- Luna 35029
- McKinley 35031
- Mora 35033
- Quay 35037
- Rio Arriba 35039
- Roosevelt 35041
- San Juan 35045
- San Miguel 35047
- Sandoval 35043
- Santa Fe 35049
- Sierra 35051
- Socorro 35053
- Union 35059
New York view state ↗ 9 N ▾
North Carolina view state ↗ 2 N ▾
North Dakota view state ↗ 40 N ▾
- Barnes 38003
- Benson 38005
- Billings 38007
- Bottineau 38009
- Bowman 38011
- Burke 38013
- Cass 38017
- Cavalier 38019
- Dickey 38021
- Divide 38023
- Eddy 38027
- Emmons 38029
- Foster 38031
- Grant 38037
- Griggs 38039
- Kidder 38043
- LaMoure 38045
- Logan 38047
- McHenry 38049
- McIntosh 38051
- McLean 38055
- Mountrail 38061
- Nelson 38063
- Pembina 38067
- Pierce 38069
- Ramsey 38071
- Ransom 38073
- Richland 38077
- Rolette 38079
- Sargent 38081
- Sheridan 38083
- Sioux 38085
- Stark 38089
- Steele 38091
- Stutsman 38093
- Towner 38095
- Walsh 38099
- Ward 38101
- Wells 38103
- Williams 38105
Oklahoma view state ↗ 32 N ▾
- Alfalfa 40003
- Beaver 40007
- Bryan 40013
- Caddo 40015
- Canadian 40017
- Choctaw 40023
- Cimarron 40025
- Cleveland 40027
- Comanche 40031
- Creek 40037
- Custer 40039
- Dewey 40043
- Grady 40051
- Grant 40053
- Harmon 40057
- Harper 40059
- Jackson 40065
- Kay 40071
- Kingfisher 40073
- Marshall 40095
- Mayes 40097
- McClain 40087
- Muskogee 40101
- Oklahoma 40109
- Osage 40113
- Payne 40119
- Pottawatomie 40125
- Stephens 40137
- Texas 40139
- Tulsa 40143
- Wagoner 40145
- Woods 40151
Oregon view state ↗ 6 N ▾
Pennsylvania view state ↗ 1 N ▾
South Carolina view state ↗ 2 N ▾
South Dakota view state ↗ 16 N ▾
Texas view state ↗ 145 N ▾
- Anderson 48001
- Andrews 48003
- Aransas 48007
- Archer 48009
- Armstrong 48011
- Austin 48015
- Bailey 48017
- Bastrop 48021
- Bee 48025
- Bell 48027
- Bexar 48029
- Blanco 48031
- Brazoria 48039
- Brazos 48041
- Brewster 48043
- Briscoe 48045
- Brooks 48047
- Brown 48049
- Burleson 48051
- Burnet 48053
- Caldwell 48055
- Calhoun 48057
- Callahan 48059
- Cameron 48061
- Carson 48065
- Chambers 48071
- Childress 48075
- Coleman 48083
- Collingsworth 48087
- Colorado 48089
- Comal 48091
- Comanche 48093
- Coryell 48099
- Cottle 48101
- Crosby 48107
- Dallam 48111
- Dallas 48113
- Dawson 48115
- Deaf Smith 48117
- Denton 48121
- DeWitt 48123
- Dickens 48125
- Dimmit 48127
- Donley 48129
- Duval 48131
- Eastland 48133
- El Paso 48141
- Fayette 48149
- Fisher 48151
- Floyd 48153
- Freestone 48161
- Frio 48163
- Galveston 48167
- Garza 48169
- Gillespie 48171
- Goliad 48175
- Gonzales 48177
- Gray 48179
- Grayson 48181
- Guadalupe 48187
- Hall 48191
- Hamilton 48193
- Hansford 48195
- Harris 48201
- Hartley 48205
- Hays 48209
- Hemphill 48211
- Hidalgo 48215
- Hill 48217
- Hockley 48219
- Hunt 48231
- Hutchinson 48233
- Jackson 48239
- Jasper 48241
- Jeff Davis 48243
- Jefferson 48245
- Jim Wells 48249
- Johnson 48251
- Jones 48253
- Karnes 48255
- Kaufman 48257
- Kendall 48259
- Kenedy 48261
- Kerr 48265
- Kimble 48267
- King 48269
- Kleberg 48273
- La Salle 48283
- Lamb 48279
- Lampasas 48281
- Leon 48289
- Lipscomb 48295
- Live Oak 48297
- Llano 48299
- Lubbock 48303
- Madison 48313
- Mason 48319
- Matagorda 48321
- McLennan 48309
- McMullen 48311
- Mills 48333
- Motley 48345
- Nolan 48353
- Nueces 48355
- Ochiltree 48357
- Oldham 48359
- Palo Pinto 48363
- Parker 48367
- Parmer 48369
- Pecos 48371
- Polk 48373
- Potter 48375
- Presidio 48377
- Randall 48381
- Roberts 48393
- Robertson 48395
- Rusk 48401
- Sabine 48403
- San Jacinto 48407
- San Patricio 48409
- Schleicher 48413
- Scurry 48415
- Sherman 48421
- Starr 48427
- Stephens 48429
- Stonewall 48433
- Tarrant 48439
- Taylor 48441
- Titus 48449
- Travis 48453
- Trinity 48455
- Val Verde 48465
- Victoria 48469
- Walker 48471
- Washington 48477
- Webb 48479
- Wharton 48481
- Wheeler 48483
- Wichita 48485
- Wilbarger 48487
- Willacy 48489
- Williamson 48491
- Wilson 48493
- Young 48503
- Zavala 48507
Utah view state ↗ 12 N ▾
Vermont view state ↗ 2 N ▾
Washington view state ↗ 3 N ▾
Wisconsin view state ↗ 38 N ▾
- Adams 55001
- Ashland 55003
- Barron 55005
- Bayfield 55007
- Brown 55009
- Burnett 55013
- Columbia 55021
- Crawford 55023
- Dane 55025
- Door 55029
- Douglas 55031
- Dunn 55033
- Green 55045
- Iowa 55049
- Iron 55051
- Jackson 55053
- Jefferson 55055
- La Crosse 55063
- Lincoln 55069
- Marathon 55073
- Marinette 55075
- Menominee 55078
- Milwaukee 55079
- Monroe 55081
- Pepin 55091
- Pierce 55093
- Richland 55103
- Rock 55105
- Rusk 55107
- Sauk 55111
- Sheboygan 55117
- Trempealeau 55121
- Vilas 55125
- Washburn 55129
- Waukesha 55133
- Waushara 55137
- Winnebago 55139
- Wood 55141
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMPS ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3110686 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z