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Can you identify weeds? To answer the question, click on the photograph you think is the correct answer. A correct answer will give APPLAUSE. An incorrect answer will give another sound. To see the common names of the weeds, click anywhere on the green background. Then use the “page down” key, “down arrow” key, or another mouse click to move to the next question. START QUIT
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Which is black nightshade?
Hemp dogbane Burdock
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Which is horseweed (marestail)?
Horsenettle Horseweed (Marestail) Jimsonweed
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Which is common milkweed?
Common ragweed Curly dock Common milkweed
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Which is field bindweed?
Field pennycress Fall panicum
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Flower-of-an-hour (Venice mallow)
Which is giant ragweed? Hedge bindweed Flower-of-an-hour (Venice mallow) Giant ragweed
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Which is hemp dogbane? Hemp dogbane Hemp (Marijuana)
Honeyvine milkweed
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Which is giant ragweed? Giant ragweed Honeyvine milkweed
Ivyleaf morningglory
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Which is jimsonweed? Horseweed (marestail) Ladysthumb smartweed
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Which is Johnsongrass? Johnsongrass Green foxtail Large crabgrass
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Which is pigweed? Giant ragweed Common lambsquarters Pigweed
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Which is horsenettle? Hemp dogbane Horsenettle Honeyvine milkweed
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Which is broadleaf plantain?
Buckhorn plantain Broadleaf plantain Horsenettle
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Flower-of-an-hour (Venice mallow)
Which is flower-of-an-hour (Venice mallow)? Field bindweed Flower-of-an-hour (Venice mallow) Giant ragweed
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Which is jimsonweed? Horseweed (marestail) Horsenettle Jimsonweed
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Which is pigweed? Peppergrass Pigweed Ivyleaf morningglory
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Which is shattercane? Shattercane Quackgrass Green foxtail
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Which is purslane? Purslane Shepherd’s-purse Perennial sowthistle
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Which is tall morningglory?
Velvetleaf Tall morningglory Ivyleaf morningglory
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Which is waterhemp? Wild carrot Waterhemp Hemp dogbane
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Which is burdock? Burdock Chicory Common milkweed
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Which is field pennycress?
Peppergrass Shepherd’s-purse
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Which is peppergrass? Peppergrass Giant ragweed Prickly sida
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Which is Canada thistle?
Perennial sowthistle Field pennycress Canada thistle
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Which is prostrate knotweed?
Prickly sida Portulaca
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Which is velvetleaf? Velvetleaf Burdock Carpetweed
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Which is cheat? Foxtail barley Cheat Johnsongrass
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Which is broadleaf plantain?
Pigweed Ivyleaf morningglory
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Which is giant foxtail? Giant foxtail Green foxtail Yellow foxtail
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Which is yellow nutsedge?
Field pennycress Yellow nutsedge Wild garlic
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Which is common cocklebur?
Common chickweed Common ragweed
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Which is wild parsnip? Wild carrot Wild parsnip Peppergrass
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Which is chicory? Burdock Common milkweed Chicory
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Flower-of-an-hour (Venice mallow)
Which is hedge bindweed? Hedge bindweed Flower-of-an-hour (Venice mallow) Giant ragweed
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Which is barnyardgrass?
Broadleaf plantain Giant foxtail
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Which is yellow nutsedge?
Perennial sowthistle Yellow nutsedge Horseweed (Marestail)
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Which is daisy fleabane?
Dandelion Daisy fleabane Fall panicum
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Which is Johsongrass? Giant ragweed Johnsongrass Ivyleaf morningglory
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Which is carpetweed? Carpetweed Common chickweed Dandelion
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Which is hemp (marijuana)?
Hemp dogbane Hemp (Marijuana) Honeyvine milkweed
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Which is honeyvine milkweed?
Tall morningglory Hedge bindweed Honeyvine milkweed
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Which is common lambsquarters?
Ladysthumb smartweed Common lambsquarters Pigweed
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Which is common mallow? Common mallow Prickly sida Shepherd’s-purse
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Which is buckhorn plantain?
Broadleaf plantain Buckhorn plantain Ivyleaf morningglory
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Which is purslane? Purslane Ivyleaf morningglory Field pennycress
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Which is large crabgrass?
Johnsongrass Green foxtail Large crabgrass
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Which is black nightshade?
Bitter nightshade Field bindweed
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Which is common mullein?
Giant ragweed Common mullein Burdock
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Which is green foxtail? Shattercane Quackgrass Green foxtail
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Which is wild carrot? Wild carrot Wild garlic Wild mustard
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Which is field bindweed?
Bitter nightshade Canada thistle
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Which is musk thistle? Perennial sowthistle Musk thistle
Canada thistle
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Which is fall panicum? Goosegrass Woolly cupgrass Fall panicum
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Which is carpetweed? Carpetweed Common chickweed Prostrate knotweed
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Which is foxtail barley?
Cheat Johnsongrass
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Which is peppergrass? Peppergrass Johnsongrass Ivyleaf morningglory
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Which is wild garlic? Field pennycress Yellow nutsedge Wild garlic
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Which is shepherd’s-purse?
Field pennycress Peppergrass Shepherd’s-purse
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Which is velvetleaf? Velvetleaf Shattercane Quackgrass
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Which is ladysthumb smartweed?
Common lambsquarters Pigweed
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Which is wild mustard? Dandelion Yellow woodsorrel Wild mustard
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Which is dandelion? Yarrow Common ragweed Dandelion
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Which is curly dock? Common ragweed Curly dock Bull thistle
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Which is perennial sowthistle?
Yellow nutsedge Horseweed (Marestail)
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Which is quackgrass? Velvetleaf Shattercane Quackgrass
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Flower-of-an-hour (Venice mallow)
Which is flower-of-an-hour (Venice mallow)? Dandelion Field bindweed Flower-of-an-hour (Venice mallow)
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Which is common chickweed?
Carpetweed Common chickweed Dandelion
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Which is goosegrass? Goosegrass Green foxtail Large crabgrass
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Which is prickly lettuce?
Perennial sowthistle Prickly lettuce Horsenettle
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Which is bitter nightshade?
Black nightshade Bitter nightshade Field bindweed
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Which is ivyleaf morningglory?
Purslane Ivyleaf morningglory Field pennycress
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Which is horseweed (marestail)?
Perennial sowthistle Yellow nutsedge Horseweed (Marestail)
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Which is common ragweed?
Giant ragweed Common lambsquarters
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Which is black nightshade?
Bitter nightshade Black nightshade Common lambsquarters
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Flower-of-an-hour (Venice mallow)
Which is common mallow? Common mallow Hedge bindweed Flower-of-an-hour (Venice mallow)
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Which is prickly sida? Common mallow Prickly sida Shepherd’s-purse
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Which is waterhemp? Waterhemp
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Which is wild sunflower?
Waterhemp Common lambsquarters Wild sunflower
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Which is woolly cupgrass?
Goosegrass Woolly cupgrass Fall panicum
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Which is yarrow? Yarrow Common ragweed Dandelion
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Which is yellow foxtail?
Giant foxtail Green foxtail Yellow foxtail
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Flower-of-an-hour (Venice mallow)
Which is field bindweed? Dandelion Field bindweed Flower-of-an-hour (Venice mallow)
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Which is yellow woodsorrel?
Dandelion Yellow woodsorrel Wild mustard
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Which is common mullein?
Dandelion Common mullein Burdock
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The End Quit
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BACK This material was prepared by Ken McPheeters, Information Technology and Communication Services, and Aaron Hager, Department of Crop Sciences, College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana-Champaign. Photographs provided by authors, unless otherwise noted. The illustrated weeds are on the weed identification list of the Illinois Association of Vocational Agriculture Teachers Crops Career Development Event. ITCS Instructional Materials 1401 South Maryland Drive Urbana, IL (217) FAX (217) Copyright © by the Board of Trustees of the University of Illinois. ITCS Instructional Materials Information Technology and Communication Services University of Illinois at Urbana-Champaign
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