Japanese knotweed
Where to see Japanese knotweed
We found 18 places featuring Japanese knotweed. Plan your next visit below.
Common · Plants
Map of Japanese knotweed sightings
Explore clustered snap locations for this species to see where it has been observed.
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📍 British Columbia (2)📍 Maryland (2)📍 Massachusetts (4)📍 New York (2)📍 Virginia (3)📍 CA (4)📍 US (14)
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Park30 sightings20 species
Maryland, US
Herring Run Park
You might spot White-Tailed Deer and Japanese Knotweed.
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Park120 sightings19 species
Massachusetts, US
Mystic River Reservation
You might spot Duck, American Robin, and Mute Swan.
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Park96 sightings16 species
Massachusetts, US
Veterans Field
You might spot House Sparrow, Garlic Mustard, and Duck.
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Park86 sightings15 species
Virginia, US
Kent Gardens Park
You might spot American Robin, Northern Cardinal, and House Sparrow.
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Park98 sightings13 species
Massachusetts, US
Spy Pond Field
You might spot White Mulberry and Mourning Dove.
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Park100 sightings12 species
Massachusetts, US
Franklin Park
You might spot Japanese Knotweed and Common Eastern Bumble Bee.
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Park42 sightings12 species
Québec, CA
Parc linéaire de la rivière Saint-Charles
You might spot Common Eastern Bumble Bee and Asian Lady Beetle.
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Park119 sightings10 species
New York, US
Highbridge Park
You might spot Eastern Red-Backed Salamander and Eastern Poison Ivy.
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Park60 sightings9 species
Virginia, US
Eudora Park
You might spot White-Tailed Deer and Eastern Skunk Cabbage.
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Park73 sightings9 species
Maryland, US
Lake Roland
You might spot American Toad, White-Tailed Deer, and Lesser Celandine.
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Park47 sightings9 species
Pennsylvania, US
Spring Mill Park
You might spot Paulownia, Asian Lady Beetle, and Spotted Lanternfly.
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Park13 sightings8 species
New York, US
Paerdegat Basin Park
You might spot Eastern Tent Caterpillar Moth and Common Mugwort.
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Park17 sightings6 species
British Columbia, CA
Cowichan River Provincial Park
You might spot Pacific Trillium, Vanilla Leaf, and Japanese Knotweed.
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Park42 sightings5 species
Washington, US
Magnolia Park
You might spot Arctic Butterbur, Red Valerian, and American Brooklime.
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Park6 sightings3 species
British Columbia, CA
Bright Angel Park
You might spot Western Toad, Himalayan Balsam, and Western Sword Fern.
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Park18 sightings3 species
Virginia, US
Olney Park
You might spot Mayapple, White Ash, and Multiflora Rose.
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Park4 sightings3 species
District of Columbia, US
Rock Creek Park
You might spot American Beech, Christmas Fern, and Linden Viburnum.
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Park9 sightings3 species
Ontario, CA
Tom Davies Square
You might spot Common Eastern Bumble Bee and Two-Spotted Bumble Bee.
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Recent snaps of Japanese knotweed
Recent snaps for Japanese knotweed will appear here as new observations are added.