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Parrot's Feather

A popular aquatic garden plant that spreads with water currents, animals, boats/trailers and fishing gear. Dense stands can stagnate water, and increase breeding grounds for mosquitoes

Zebra/Quagga Mussels

These tiny freshwater mussels clog drains, damage infrastructure, and are very costly to control/eradicate learn more »

Giant Hogweed

A towering toxic invasive plant with WorkSafe BC regulations learn more »

European Fire Ant

A tiny ant with a toxic sting learn more »

Purple Loosestrife

An aggressive wetland invader that threatens plant and animal diversity learn more »

Japanese Knotweed

Grows aggressively through concrete, impacting roads and house foundations learn more »

Spotted Knapweed

A single plant spreads rapidly with up to 140,000 seeds per square metre learn more »

Scotch Broom

An evergreen shrub that invades rangelands, replaces forage plants, causes allergies in people, and is a serious competitor to conifer seedlings learn more »

Orange Hawkweed

Also yellow, these invasive plants replace native vegetation along roadsides, and threaten areas not yet reforested learn more »

List of Regulated Invasive Plants in BC

See below for a list and links to information and resources for the provincially and regionally regulated noxious plants, and additional unregulated invasive plants of concern in BC: [under construction]

REGULATION: PROVINCIALLY NOXIOUS

REGULATION: REGIONALLY NOXIOUS

  • Blueweed (Echium vulgare) - Cariboo, Central Kootenay, Columbia-Shuswap, East Kootenay, Okanagan-Similkameen, Thompson-Nicola
  • Burdock (Arctium spp.) - Bulkley-Nechako, Cariboo, Columbia-Shuswap, Fraser-Fort George, Kitimat-Stikine, North Okanagan, Okanagan-Similkameen, Peace River, Thompson-Nicola
  • Cleavers (Galium aparine) - Peace River
  • Common Bugloss (Anchusa officinalis) - Kootenay-Boundary
  • Common Tansy (Tanacetum vulgare) - Bulkley-Nechako, Central Kootenay, Columbia-Shuswap, East Kootenay, North Okanagan
  • Field Scabious (Knautia arvensis) - Bulkley-Nechako, Kootenay-Boundary,  Thompson-Nicola
  • Green Foxtail (Setaria viridis) - Peace River
  • Hawkweed, Orange (Hieracium aurantiacum) - Bulkley-Nechako, Cariboo, Central Kootenay, Columbia-Shuswap, East Kootenay, Thompson-Nicola
  • Hoary Alyssum (Berteroa incana) - Kootenay-Boundary
  • Hoary Cress (Cardaria spp.) - Columbia-Shuswap, North Okanagan, Thompson-Nicola
  • Knapweed, Meadow (Centaurea pratensis) - Columbia-Shuswap
  • Knapweed, Russian (Acroptilon repens) - North Okanagan
  • Kochia (Kochia scoparia) - Peace River
  • Marsh Plume Thistle (Cirsium palustre) - Bulkley-Nechako, Fraser-Fort George
  • Night-Flowering Catchfly (Silene noctiflora) - Peace River
  • Oxeye Daisy (Chrysanthemum leucanthemum) - Cariboo, North Okanagan, Peace River, Thompson-Nicola
  • Perennial Pepperweed (Lepidium latifolium) - East Kootenay, Thompson-Nicola
  • Puncturevine (Tribulus terrestris) - Okanagan-Similkameen
  • Quackgrass (Agropyron repens) - Peace River
  • Sulphur Cinquefoil (Potentilla recta) - Columbia-Shuswap, North-Okanagan, Okanagan-Similkameen, Thompson-Nicola
  • Thistle, Plumeless (Carduus acanthoides) - Central Kootenay
  • Thistle, Russian (Salsola kali) - Peace River
  • Thistle, Scotch (Onopordum acanthium) - North Okanagan
  • Wild Chervil (Anthriscus sylvestris) - Fraser Valley
  • Wild Mustard (Sinapsis arvensis) - Peace River

ADDITIONAL UNREGULATED INVASIVE PLANTS OF CONCERN IN BC