Invasive species (plants and animals) are those that have been introduced from outside of their native range and have the potential to negatively impact humans, animals and/or ecosystems. Not all introduced species are considered invasive or harmful, though some can have a lag period before they become a threat.
Invasive species have the ability to establish quickly in new areas and spread rapidly. Invasive species are also known as alien, exotic weeds, introduced, and non-indigenous. Another term often used for invasive plants, noxious weeds, has traditionally included plants harmful to livestock (though currently expanded to include animals in general) or people. Noxious weed is also a term for legally designated species within provincial legislation (Weed Control Act).
- Gorse Alert Sheet
- Lesser Celandine Alert Sheet
- Giant Hogweed Alert Sheet
- Garlic Mustard Alert Sheet
- Poison Hemlock Alert Sheet
- Policeman’s Helmet Alert Sheet
- Shiny Geranium
- Priority Invasive Plant Management Categories
- Blessed Milk Thistle Alert Sheet
- Yellow Flag Iris Alert Sheet
- Invasive Knotweeds Alert Sheet
- Purple Loosestrife Alert Sheet
- European Fire Ants
- Controlling Invasive Plants on Your Property