poison hemlock
Where to see poison hemlock
We found 50 places featuring poison hemlock. Plan your next visit below.
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Rare · Plants
Map of poison hemlock sightings
Explore clustered snap locations for this species to see where it has been observed.
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📍 California (6)📍 Illinois (7)📍 Indiana (3)📍 Kentucky (2)📍 New Jersey (2)📍 Ohio (11)📍 Oregon (4)📍 Pennsylvania (8)📍 Virginia (3)📍 Washington (8)📍 US (64)
Park41 sightings50 species
California, US
Arastradero Preserve
You might spot Acorn Woodpecker and Western Fence Lizard.
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Park16 sightings50 species
Illinois, US
Bishop Hill Colony
You might spot Chicory, Hackberry Emperor, and Compass Plant.
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Park44 sightings50 species
Ohio, US
Blackhand Gorge State Nature Preserve
You might spot Large White Trillium, Fire Pink, and Christmas Fern.
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Park44 sightings50 species
California, US
Blake Garden
You might spot Monarch, Bee, and Anise Swallowtail.
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Park48 sightings50 species
Maryland, US
Cedarville State Forest
You might spot Northern Cricket Frog and Common Whitetail.
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Park47 sightings50 species
Ohio, US
Chadwick Arboretum
You might spot Widow Skimmer, Eastern Pondhawk, and Bee.
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Park46 sightings50 species
Ohio, US
Cleveland Cultural Gardens
You might spot Spotted Lanternfly and Eastern Fox Squirrel.
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Park23 sightings50 species
California, US
Crystal Cove Historic District
You might spot Sunburst Anemone, Ochre Sea Star, and Striped Shore Crab.
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Park47 sightings50 species
Colorado, US
Dinosaur Ridge
You might spot Common Starlily and Wholeleaf Paintbrush.
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Park47 sightings50 species
Washington, US
Discovery Park
You might spot Great Blue Heron, Aggregating Anemone, and Ochre Sea Star.
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Park44 sightings50 species
Illinois, US
Downtown Quincy Historic District
You might spot Eastern Fox Squirrel, Amur Honeysuckle, and Poison Hemlock.
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Park46 sightings50 species
New Jersey, US
Duke Gardens
You might spot Monarch, Great Blue Heron, and American Robin.
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Park48 sightings50 species
Virginia, US
Grand Caverns
You might spot Garlic Mustard, Spotted Lanternfly, and Bloodroot.
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Park44 sightings50 species
Pennsylvania, US
Haym Salomon Memorial Park
You might spot White-Tailed Deer, Eastern Bluebird, and Northern Cardinal.
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Park47 sightings50 species
Pennsylvania, US
Historic Moravian Bethlehem Historic District
You might spot Tree-Of-Heaven, Spotted Lanternfly, and American Tuliptree.
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Park46 sightings50 species
Ohio, US
Hoffner Historic District
You might spot Brown-Belted Bumble Bee and Eastern Carpenter Bee.
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Park46 sightings50 species
Michigan, US
Kal-Haven Trail
You might spot Eastern Box Turtle, Autumn Olive, and Common Watersnake.
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Park47 sightings50 species
Kentucky, US
Kentucky Horse Park
You might spot Bird's-Eye Speedwell and Barn Swallow.
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Park49 sightings50 species
Illinois, US
Lilacia Park
You might spot American Robin, Monarch, and Duck.
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Park45 sightings50 species
Illinois, US
Lock and Dam No. 21
You might spot Ivory Gull, Bald Eagle, and Eastern Fox Squirrel.
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Park42 sightings50 species
Ohio, US
Miami Whitewater Forest
You might spot Wild Bergamot, Rattlesnake Master, and Eastern Pondhawk.
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Park48 sightings50 species
Illinois, US
Midewin National Tallgrass Prairie
You might spot Osage-Orange, Cutleaf Teasel, and Red Clover.
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Park40 sightings50 species
Nebraska, US
Morrill County Courthouse
You might spot Showy Milkweed and Straight-Lined Wave.
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Park38 sightings50 species
Pennsylvania, US
Morris Arboretum
You might spot Harlequin Bug, White-Tailed Deer, and Bee.
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Park47 sightings50 species
Ohio, US
Mount Airy Forest
You might spot Spotted Lanternfly, Virginia Springbeauty, and Blue Phlox.
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Park27 sightings50 species
Pennsylvania, US
North Park
You might spot White-Tailed Deer, Eastern Skunk Cabbage, and Canada Goose.
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Park40 sightings50 species
Oregon, US
P Ranch
You might spot Mule Deer, Song Sparrow, and Northern Yellow Warbler.
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Park39 sightings50 species
Oklahoma, US
Paseo Arts District
You might spot Monarch, American Bumble Bee, and Gulf Fritillary.
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Park45 sightings50 species
Washington, US
Pike Place Market
You might spot Rock Pigeon, American Crow, and Pigeon Guillemot.
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Park43 sightings50 species
Pennsylvania, US
Virginville
You might spot Solomon's Plume, Moonseed, and Virginia Waterleaf.
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Zoo30 sightings15 species
Pennsylvania, US
ZooAmerica
You might spot American Alligator, Black Bear, and Canada Lynx.
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Park30 sightings12 species
California, US
Arcata Community Forest
You might spot Pacific Banana Slug and Ensatina.
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Park30 sightings12 species
Ohio, US
Athens Lunatic Asylum
You might spot Christmas Fern, Multiflora Rose, and American Beech.
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Park30 sightings12 species
Oregon, US
Aurora Colony
You might spot Duck, Wood Duck, and Douglas Fir.
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Park30 sightings12 species
Ohio, US
Beaver Creek State Forest
You might spot Psychedelic Ovoid Mushroom and Powdered Dancer.
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Park30 sightings12 species
Washington, US
Chinatown-International District
You might spot Rock Pigeon, Pigeon Guillemot, and American Crow.
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Park30 sightings12 species
Pennsylvania, US
Crystal Cave
You might spot Purple-Stemmed Angelica and Lesser Celandine.
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Park30 sightings12 species
Ohio, US
East Town Street Historic District
You might spot Spotted Lanternfly and Eastern Gray Squirrel.
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Park30 sightings12 species
California, US
Elkhorn Slough National Estuarine Research Reserve
You might spot Great Egret, Acorn Woodpecker, and Great Blue Heron.
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Park30 sightings12 species
Tennessee, US
Fruitvale
You might spot Red-Tailed Hawk, Red-Shouldered Hawk, and Canada Goose.
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Park30 sightings12 species
Ohio, US
German Village Historic District
You might spot Monarch, Asian Lady Beetle, and Bee.
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Park30 sightings12 species
Indiana, US
Greenfield Courthouse Square Historic District
You might spot Duck, Asian Lady Beetle, and Eastern Cottontail.
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Park0 sightings12 species
West Virginia, US
Harpers Ferry Historic District
You might spot Spotted Lanternfly, Common Pawpaw, and Virginia Bluebells.
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Park30 sightings12 species
Pennsylvania, US
Hershey Gardens
You might spot Spotted Lanternfly, Canada Goose, and Isabella Tiger Moth.
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Park30 sightings12 species
Kentucky, US
Holy Cross Church and School Complex-Latonia
You might spot Canada Goose, Common Wall Lizard, and Monarch.
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Park30 sightings12 species
Indiana, US
Hoosier Prairie State Nature Preserve
You might spot Sweetfern, Blue-Spotted Salamander, and Sensitive Fern.
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Park30 sightings12 species
Oregon, US
Hoyt Arboretum
You might spot Western Redcedar, Salal, and Pacific Trillium.
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Park0 sightings12 species
Illinois, US
Lock and Dam No. 22
You might spot Snapping Turtle, Cardinal Flower, and American Bullfrog.
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Park30 sightings12 species
California, US
Los Encinos State Historic Park
You might spot Duck, Red-Tailed Hawk, and Double-Crested Cormorant.
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Zoo30 sightings12 species
Indiana, US
ME's Zoo
You might spot Shield Lichens, Sunburst Lichens, Rosette Lichens, and Allies.
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Recent snaps of poison hemlock
Jun 14, 2026
Arastradero Preservei
Photo attribution
no rights reserved
License: CC0 1.0 ↗
Image may be shown cropped inside the card frame.
Jun 6, 2026
Ocean City Residential Historic Districti
Photo attribution
(c) Peter A. Greenberg, some rights reserved (CC BY)
License: CC BY 4.0 ↗
Image may be shown cropped inside the card frame.