
INVASIVE WEED SPECIES IN DIDSBURY, ALBERTA
Noxious species are species that landowners must control to prevent from spreading. These non-native species are already widely distributed in Alberta that have a significant economic or ecological impact and can spread easily from existing infestations onto adjoining properties. Relatively easily controlled in small numbers, they can become unmanageable if left uncontrolled and can have a significant impact when abundant.
The following Noxious species are administered by the Weed Control Act:
- Baby’s-Breath, common — Gypsophila paniculata L.
- Bellflower, creeping — Campanula rapunculoides L.
- Bindweed, field — Convolvulus arvensis L.
- Blueweed — Echium vulgare L.
- Brome, downy — Bromus tectorum L.
- Brome, Japanese — Bromus japonicus Thunb.
- Burdock, great — Arctium lappa L.
- Burdock, lesser — Arctium minus (Hill) Bernh.
- Burdock, woolly — Arctium tomentosum Mill.
- Buttercup, tall — Ranunculus acris L.
- Chamomile, scentless — Tripleurospermum inodorum (L.)Sch. Bip.
- Clematis, yellow — Clematis tangutica (Maxim.) Korsh.
- Cockle, white — Silene latifolia Poir. ssp. alba (Miller) Greuter& Burdet
- Daisy, oxeye — Leucanthemum vulgare Lam.
- Dame’s rocket — Hesperis matronalis L.
- Henbane, black — Hyoscyamus niger L.
- Hoary cress, globe-podded — Lepidium appelianum Al-Shehbaz
- Hoary Cress, heart-podded — Lepidium draba L.
- Hoary Cress, lens-podded — Lepidium chalepense L.
- Hound’s-tongue — Cynoglossum officinale L.
- Mullein, common — Verbascum thapsus L.
- Pepper-grass, broad-leaved — Lepidium latifolium L.
- Scabious, field — Knautia arvensis (L.) Coult.
- Sow Thistle, perennial — Sonchus arvensis L.
- Spurge, Leafy — Euphorbia esula L.
- Tansy, common — Tanacetum vulgare L.
- Thistle, canada — Cirsium arvense (L.) Scop.
- Toadflax, dalmatian — Linaria dalmatica (L.) Mill.
- Toadflax, yellow — Linaria vulgaris Mill.
For a list of noxious weeds & prohibited noxious weeds that can be found within Mountain View County and the Town of Didsbury, visit www.mountainviewcounty.com/agriculture-environment/weed-management