 |
Camping & Wilderness |  |
Parks & Conservation |
 |
Wildlife & Biodiversity |
 |
Monitoring the Environment |
 |
Fishing |  |
Hunting & Trapping |
 |
Education & Youth |
 |
Publications, Maps & Data |
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
Greater Butter-and-Eggs
Dalmatica Toadflax
 |
|
| Greater Butter-and-Eggs | Dalmatica Toadflax |
Common Name: Greater Butter-and-Eggs or Dalmatica Toadflax
Scientific Name: Linaria vulgaris or Linaria dalmatica
Family: Scrophulariaceae
Description
This very attractive plant resembles a yellow perennial snap-dragon. It is widely found in gardens and invading roadsides in most Yukon communities. It is usually less than 50 cm tall, persistent and mildly toxic. This persistent plant is a restricted noxious weed in Alaska.
Range in Yukon
Greater butter-and-eggs has been found in most communities, primarily from intentional garden plantings. It is widespread in the Whitehorse and Dawson areas, and along the South Canol Road in the Quiet Lake area, Watson Lake and Haines Junction. It is mainly spread through yard waste.
Similar Species
Dalmatian toadflax (Linaria dalmatica) is much more invasive. It is larger with oval clasping leaves and in Yukon is known only from the Alaska Highway on the banks of the Rancheria River where it was apparently eradicated.
Ecological Impact
This persistent and aggressive invader may form dense colonies and suppress native grasses and other perennials. It contains a poisonous glucoside that is moderately poisonous to livestock. It is known to alter local pollination ecology and reduces the yield in cropland.
Control
Perennial plants require depletion of nutrient reserves in the root system, prevention of seed production and prevention of dispersal. Greater Butter-and-eggs reproduces both by seed and roots in Yukon.
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 |