Common names: yellow toadflax; butter and eggs; common linaria; common toadflax; wild snapdragon
Linaria vulgaris (yellow toadflax, butter and eggs) is an herbaceous perennial (family Scrophulariaceae) that was introduced as an ornamental. It can be found in disturbed open sites, fields, pastures, degraded rangelands, roadsides, agronomic and perennial crops. Although it is typically found in northern California, it can occur sporadically in many other areas of California, except desert areas and the Big Basin. Infestations often form large colonies, displacing desirable vegetation.Cal-IPC Rating: Moderate
Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
Cal-IPC Newsletter Articles
- Prioritizing Regional Response to Invasive Plants in the Sierra Nevada. Brusati, Elizabeth; Morawitz, Dana; Powell, Cynthia. Vol 19, Issue 2
- Fighting weeds in the Tahoe basin. Donaldson, Sue. Vol 11, Issue 2
Cal-IPC Symposium Presentations
- Donaldson, S., W. West, et al. (2003). Getting the job done: Working within the regulatory environment at Lake Tahoe to manage weeds. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
- O'Connell, R. A. (1997). Hydrilla: A case study: The state of California's noxious weed eradication programs. California Exotic Pest Plant Council Symposium '97. Concord, CA.
Other Linaria vulgaris Information
- CalPhotos - Images of plants taken mostly in California.
- CalFlora - Distribution information based on submitted observations and herbarium specimens.
- CalWeedMapper - Distribution information with ability to determine regional priorities.
- Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
- CDFA - California official noxious weeds.
- USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.