The Metro Vancouver region has a number of invasive plant species to manage. IPCMV has organized this list of species into four categories: Prevent, Eradicate, Contain and Control. These categories help us to prioritize which species require management first (not always). This list is constantly changing as new species are confirmed, plants spread and/or plant populations increase. Many of the commonly known species within Metro Vancouver are in the Contain and Control categories. It is important to note that these types of lists vary by region.
Prevent Species are species that are not yet within Metro Vancouver. These are species that are present in surrounding jurisdictions such as Washington State or the Fraser Valley, or are able to grow in similar environments and lattitudes but are not yet within IPCMV's management area.
IPCMV Prevent Species include plants such as: Milk Thistle, Gorse, Hoary Alyssum, Common Crupina, Kudzu, Russian Knapweed, Common bugloss, Leafy spurge, Yellow Star Thistle
Eradicate Species are species that IPCMV has identfied as eradicable. This means that if we act quickly and early enough, we have the potential to get rid of that particular species within our region.
IPCMV Eradicate Species include plants such as: Garlic Mustard, Common Reed, Burr Chervil, Blueweed, Dalmation Toadflax, Flowering Rush, Moutain Blue Knapweed, Yellow Loosestrife, English Cordgrass, Chicory, Poison Hemlock, Jimsonweed, Teasel, Carpet Burweed
Contain Species are species with a wide enough distribution that eradication is not likely. Contain species often exist in isolated sites throughout the region so we work to contain these to mitigate spread to the entire region or surrounding sensitive habitat.
IPCMV Contain Species include plants such as: Wild Chervil, Butterfly Bush, Diffuse Knapweed, Spotted Knapweed, Spurge/Daphne Laurel, Giant Knotweed, Giant Hogweed, Himalayan Knotweed, Meadow Knapweed, Yellow Hawkweeds, Small Touch-me-not, Eurasian Water Milfoil, Wild Carrot, Fox Glove, St, John's Wort, Pacific Jewelweed, Prickly Lettuce, Parrotweed, Curled Pondweed, Sulphur Cinquefoil, Tufted Vetch
Control Species are widespread throughout the region with very little chance or eradication. These species are only worked on in specific sites where they are contained outside of a boundary i.e. a park.
IPCMV Control Species include plants such as: Canada Thistle, Scotch Broom, Japanese Knotweed, Bohemian Knotweed, English Ivy, English Holly, Policeman's Helmet, Yellow Flag Iris, Purple Loosestrife, Himalayan Blackberry, Common Tansy, Periwinkle, Burdock, Lamium, Purple Deadnettle, Evergreen Blackberrry, Tansy Ragwort, Water Star-wort, Lamb's Quarters, Wild Clematis, Morning Glory, English Hawthorn, Orchardgrass, Hairy Cat's Ear, Oxeye Daisy, Scentless Chamomile, Lady's Thumb, Reed Canary Grass, Cherry Laurel, Western Goat's Beard, Great Mullein