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Invasive Plants
- Perennial Sow Thistle
- Creeping Thistle
- Oxeye Daisy
- Common Tansy
- Spotted Knapweed
- Narrowleaf Hawksbeard
- Scentless Chamomile
- Leafy Spurge
- Foxtail Barley
- Altai Wild Rye
- Crested Wheat Grass
- Smooth Brome
- Quackgrass
- Reed Canary Grass
- Bird Vetch
- Lucerne
- Sweetclover
- Greater Butter-and-Eggs
- Dalmatica Toadflas
Oxeye Daisy
Common Name: Oxeye Daisy
Scientific Name: Leucanthemum vulgare
Family: Asteraceae
Description
Oxeye daisy is a shallow-rooted perennial daisy. Although it is listed as an invasive weed in 8 states and 4 provinces, it is still sold as a garden plant, including here in Yukon. It is particularly problematic in BC and SE Alaska. It has large white flowers with yellow centers.
Range in Yukon
Oxeye daisy has been found along roadsides and in the communities of Dawson, Watson Lake, Whitehorse and Haines Junction and along the Alaska Highway at Morley and Rancheria rivers.
Similar Species
Shasta daisy (Leucanthemum maximum) is a non-invasive cousin to the oxeye daisy that grows 15-30 cm taller and has larger flowers. Scentless False Mayweed (Matricaria perforata) is an invasive annual or biennial large daisy-like plant which can be separated by its thin fennel-like leaves and fibrous roots. It has been reported from scattered locations throughout southern Yukon where it is known to persist.
Ecological Impact
Oxeye daisy can form dense colonies and replace up to 50% of grass species in a pasture. Grazing animals avoid it. Dense infestations increase the potential for soil erosion.
Control
Perennial plants require depletion of nutrient reserves in the root system, prevention of seed production and prevention of dispersal. Put plants into clear garbage bags and then leave them in the sun to kill off the roots and roast the seeds.
Contact Environment Yukon Government of Yukon Box 2703 (V-5N) Bruce Bennett, Wildlife Viewing Biologist Phone: 867-667-5331 Email: bruce.bennett@gov.yk.ca |