Ontario Weeds

To browse by weed name, see the Ontario Weed Gallery Listing
To browse by weed family, see the Ontario Weed Gallery Families

Browse the Ontario Weeds Gallery: | 1 | 2 | 3 | 4 |
Click on the thumbnail or the weed name to view the larger picture.

Gourd or Melon Family (Cucurbitaceae)

Wild cucumber - Link to Ontario Weeds: Wild Cucumber
Wild cucumber

Goldencreeper - Link to Ontario Weeds: Golden Creeper
Goldencreeper

Bur-cucumber - Link to larger picture of Bur-cucumber
Bur-cucumber


Cannabis Family (Cannabaceae)
 
Harebell or Bellflower Family (Campanulaceae)

 
Composite or Aster Family (Compositae)

Black-eyed Susan - Link to Ontario Weeds: Black-eyed Susan
Black-eyed Susan

Jerusalem artichoke - Link to Ontario Weeds: Jerusalem Artichoke
Jerusalem artichoke

Hairy galinsoga - Link to Ontario Weeds: Hairy Galinsoga
Hairy galinsoga

Tall beggarticks - Link to Ontario Weeds: Tall Beggarticks
Tall beggarticks

Common ragweed - Link to Ontario Weeds: Common Ragweed
Common ragweed


Giant ragweed - Link to Ontario Weeds: Giant Ragweed
Giant ragweed

Cocklebur - Link to Ontario Weeds: Cocklebur
Cocklebur

Stinking mayweed - Link to Ontario Weeds: Stinking Mayweed
Stinking mayweed

Pineappleweed - Link to Ontario Weeds: Pineappleweed
Pineappleweed

Scentless chamomile - Link to Ontario Weeds: Scentless Chamomile
Scentless chamomile

Yarrow - Link to Ontario Weeds: Yarrow
Yarrow

Ox-eye daisy - Link to Ontario Weeds: Ox-eye Daisy
Ox-eye daisy

Tansy - Link to Ontario Weeds: Tansy
Tansy

Biennial wormwood - Link to Ontario Weeds: Biennial Wormwood
Biennial wormwood

Common groundsel - Link to Ontario Weeds: Common Groundsel
Common groundsel

Tansy ragwort - Link to Ontario Weeds: Tansy Ragwort
Tansy ragwort

Colt's foot - Link to Ontario Weeds: Colt's Foot
Colt's foot

Canada goldenrod - Link to Ontario Weeds: Canada Goldenrod
Canada goldenrod

Goldenrod - Link to larger picture of Goldenrod
Goldenrod

Annual fleabane (daisy fleabane)  - Link to Ontario Weeds: Annual Fleabane
Annual fleabane (daisy fleabane)

Rough fleabane - Link to Ontario Weeds: Rough Fleabane
Rough fleabane

Philadelphia fleabane - Link to Ontario Weeds: Philadephia Fleabane
Philadelphia fleabane

Canada fleabane - Link to Ontario Weeds: Canada Fleabane
Canada fleabane

White snakeroot - Link to Ontario Weeds: White Snakeroot
White snakeroot

Spotted Joe-pye weed - Link to Ontario Weeds: Spotted Joe-pye Weed
Spotted Joe-pye weed

Common Burdock - Link to Ontario Weeds: Common Burdock
Common burdock

Great Burdock - Link to Ontario Weeds: Great Burdock
Great burdock

Nodding thistle - Link to Ontario Weeds: Nodding Thistle
Nodding thistle

Plumeless thistle - Link to Ontario Weeds: Plumeless Thistle
Plumeless thistle

Canada thistle - Link to Ontario Weeds: Canada Thistle
Canada thistle

Bull thistle - Link to Ontario Weeds: Bull Thistle
Bull thistle

Scotch thistle - Link to Ontario Weeds: Scotch Thistle
Scotch thistle

Cornflower - Link to Ontario Weeds: Cornflower
Cornflower

Spotted knapweed - Link to Ontario Weeds: Spotted Knapweed
Spotted knapweed

Black knapweed - Link to Ontario Weeds: Black Knapweed
Black knapweed

Orange hawkweed - Link to Ontario Weeds: Orange Hawkweed
Orange hawkweed

Narrow-leaved hawk's beard - Link to Ontario Weeds: Narrow-leaved Hawk's Beard
Narrow-leaved hawk's beard

Perennial sow thistle - Link to Ontario Weeds: Perennial Sow Thistle
Perennial sow thistle

Smooth perennial sow thistle - Link to Ontario Weeds: Smooth Perennial Sow Thistle
Smooth perennial sow thistle

Spiny annual sow thistle - Link to Ontario Weeds: Spicy Annual Sow Thistle
Spiny annual sow thistle

Annual sow thistle - Link to Ontario Weeds: Annual Sow Thistle
Annual sow thistle

Prickly lettuce - Link to Ontario Weeds: Prickly Lettuce
Prickly lettuce

Chicory - Link to Ontario Weeds: Chicory
Chicory

Goat's beard - Link to Ontario Weeds: Goat's Beard
Goat's beard

Meadow goat's beard - Link to Ontario Weeds: Meadow Goat's Beard
Meadow goat's beard





Browse the Ontario Weeds Gallery: | 1 | 2 | 3 | 4 |




For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 01 June 2001
Last Reviewed: 23 January 2007