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Annual Bluegrass
Baby's-Breath
Barnyardgrass
Bladder Campion
Blueweed
Bog Rush
Bull Thistle
Burdock
Canada Thistle
Chicory
Chickweed
Cleavers
Cluster Tarweed
Common Bugloss
Common Tansy
Common Mallow
Corn Spurry
Creeping Buttercup
Crupina
Cudweed
Curled Dock
Dalmatian Toadflax
Diffuse Knapweed
Dodder
Field Bindweed
Field Scabious
Foxtail Barley
Giant Hogweed
Goat's-Beard
Gorse
Green Foxtail
Groundsel
Hemp Nettle
Henbit
Himalayan Balsam
Hoary Alyssum
Hoary Cress
Horsetail
Hound's-tongue
Japanese Knotweed
Jointed Goatgrass
Kochia
Lady's-Thumb
Lamb's-Quarters
Leafy Spurge
Marsh Plume Thistle
Meadow Knapweed
Milkweed
Mullein
Night-Flowering Catchfly
Nightshade
Nodding Thistle
Nod. Beggar-Ticks
Orange Hawkweed
Oxeye Daisy
Perennial Pepperweed
Pigweed
Pineappleweed
Plantain
Plumeless Thistle
Puncturevine
Purple Nutsedge
Purple Loosestrife
Quackgrass
Rush Skeletonweed
Russian Knapweed
Russian Thistle
Scentless Chamomile
Scotch Broom
Scotch Thistle
Sheep Sorrel
Shepherd's Purse
Sow-thistle
Spotted Knapweed
St. Johns-Wort
Stinkweed
Sulphur Cinquefoil
Tansy Ragwort
Velvetleaf
Water Hemlock
White Cockle
Wild Chervil
Wild Mustard
Wild Buckwheat
Wild Oats
Witchgrass
Yellow Starthistle
Yellow Toadflax
Yellow Nutsedge

Field Guide to Noxious and Other Selected Weeds of British Columbia

Common Tansy 
(Tanacetum vulgare)

  • Regional Noxious Weed

  • aromatic perennial growing to 1.8 metres tall; deeply divided dark green leaves; yellow "button" flowers in cluster at top of plant; no ray flowers

  • often confused with tansy ragwort (Senecio jacobaea) that has ray flowers

Button-like yellow flowers
Seedling leaves with serrated leaflet margins

Return to Field Guide to Noxious and Other Selected Weeds of BC