Index / Search / Conium maculatum
§1 Plant
Conium maculatum L.
vernacular poison hemlock — species · Apiaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Biennial
- Group
- Dicot
- Family
- Apiaceae Lindl.
- Genus
- Conium
§2a
Native status, by region
- CAN Canada Introduced
- L48 Lower 48 States Introduced
§2b
County-level range
· 291 counties across 20 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 291 counties across 20 states/territories.
Alabama view state ↗ 2 I ▾
Arizona view state ↗ 6 I ▾
Arkansas view state ↗ 7 I ▾
Delaware view state ↗ 1 I ▾
District of Columbia view state ↗ 1 I ▾
Georgia view state ↗ 1 I ▾
Kentucky view state ↗ 38 I ▾
- Anderson 21005
- Barren 21009
- Bourbon 21017
- Boyle 21021
- Bracken 21023
- Campbell 21037
- Carlisle 21039
- Carroll 21041
- Clark 21049
- Estill 21065
- Fayette 21067
- Floyd 21071
- Franklin 21073
- Garrard 21079
- Greenup 21089
- Hardin 21093
- Harlan 21095
- Hart 21099
- Jackson 21109
- Jefferson 21111
- Jessamine 21113
- Kenton 21117
- Lee 21129
- Lewis 21135
- Madison 21151
- Magoffin 21153
- Marion 21155
- Martin 21159
- Mercer 21167
- Montgomery 21173
- Nelson 21179
- Oldham 21185
- Pendleton 21191
- Robertson 21201
- Scott 21209
- Spencer 21215
- Trimble 21223
- Woodford 21239
Louisiana view state ↗ 2 I ▾
Maine view state ↗ 3 I ▾
Massachusetts view state ↗ 10 I ▾
Montana view state ↗ 33 I ▾
- Beaverhead 30001
- Big Horn 30003
- Blaine 30005
- Broadwater 30007
- Carbon 30009
- Cascade 30013
- Chouteau 30015
- Daniels 30019
- Dawson 30021
- Fallon 30025
- Fergus 30027
- Flathead 30029
- Gallatin 30031
- Glacier 30035
- Golden Valley 30037
- Jefferson 30043
- Lake 30047
- Lewis and Clark 30049
- Lincoln 30053
- Madison 30057
- Meagher 30059
- Missoula 30063
- Musselshell 30065
- Park 30067
- Powder River 30075
- Powell 30077
- Roosevelt 30085
- Rosebud 30087
- Silver Bow 30093
- Stillwater 30095
- Toole 30101
- Wibaux 30109
- Yellowstone 30111
New Hampshire view state ↗ 3 I ▾
New Jersey view state ↗ 15 I ▾
New York view state ↗ 23 I ▾
- Bronx 36005
- Cayuga 36011
- Cortland 36023
- Delaware 36025
- Erie 36029
- Jefferson 36045
- Kings 36047
- Madison 36053
- Nassau 36059
- Oneida 36065
- Orange 36071
- Queens 36081
- Rensselaer 36083
- Richmond 36085
- Schoharie 36095
- Schuyler 36097
- Suffolk 36103
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Washington 36115
- Wayne 36117
- Westchester 36119
North Carolina view state ↗ 15 I ▾
Pennsylvania view state ↗ 36 I ▾
- Adams 42001
- Allegheny 42003
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Centre 42027
- Chester 42029
- Crawford 42039
- Cumberland 42041
- Delaware 42045
- Erie 42049
- Franklin 42055
- Fulton 42057
- Greene 42059
- Huntingdon 42061
- Juniata 42067
- Lackawanna 42069
- Lancaster 42071
- Lehigh 42077
- Luzerne 42079
- Mifflin 42087
- Montgomery 42091
- Montour 42093
- Northampton 42095
- Philadelphia 42101
- Potter 42105
- Snyder 42109
- Tioga 42117
- Warren 42123
- Washington 42125
- Wayne 42127
- Wyoming 42131
- York 42133
Rhode Island view state ↗ 1 I ▾
Vermont view state ↗ 9 I ▾
Virginia view state ↗ 64 I ▾
- Albemarle 51003
- Amherst 51009
- Appomattox 51011
- Augusta 51015
- Bath 51017
- Bedford 51019
- Botetourt 51023
- Buckingham 51029
- Campbell 51031
- Caroline 51033
- Carroll 51035
- Charles City 51036
- Charlotte 51037
- Chesapeake (city) 51550
- Chesterfield 51041
- Clarke 51043
- Craig 51045
- Culpeper 51047
- Cumberland 51049
- Fairfax 51059
- Fauquier 51061
- Floyd 51063
- Fluvanna 51065
- Franklin 51067
- Frederick 51069
- Giles 51071
- Goochland 51075
- Grayson 51077
- Hampton (city) 51650
- Hanover 51085
- Henrico 51087
- Highland 51091
- Isle of Wight 51093
- King George 51099
- Lee 51105
- Loudoun 51107
- Montgomery 51121
- Nelson 51125
- New Kent 51127
- Orange 51137
- Page 51139
- Pittsylvania 51143
- Powhatan 51145
- Prince George 51149
- Prince William 51153
- Pulaski 51155
- Roanoke 51161
- Rockbridge 51163
- Rockingham 51165
- Russell 51167
- Scott 51169
- Shenandoah 51171
- Smyth 51173
- Southampton 51175
- Spotsylvania 51177
- Suffolk (city) 51800
- Surry 51181
- Sussex 51183
- Tazewell 51185
- Virginia Beach (city) 51810
- Warren 51187
- Washington 51191
- Wythe 51197
- York 51199
West Virginia view state ↗ 21 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/COMA2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3034807 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:45:41Z