Large mature plants can produce up to 500,000 seeds per year. Linaria vulgaris (common toadflax, yellow toadflax, or butter-and-eggs) is a species of toadflax (Linaria), native from Europe to Siberia and Central Asia. Weed Science, 18(6):720-5. of Pincher Creek. Columbia and Alberta (Alex 1962). Toadflax is a perennial that can carry harmful plant diseases while suppressing natural vegetation. It prefers course textured and well drained soils. See also: Fact Sheets for more information about individual invasive species, including those listed as "Prohibited Noxious" and "Noxious" under the Alberta Weed Control Act Robocker WC, 1974. Resources . Stems are erect and grow to 1 m tall with some branching ... Dalmatian Toadflax has been reported in all southern Canadian provinces, BC to Newfoundland. Journal of Range Management, 21(2):94-8. Life history, ecology and control of Dalmatian toadflax. Fact Sheet: Dalmatian Toadflax (Jan 2014) (PDF | 462 KB) Alberta Invasive Species Council (Canada). Seeding of the dalmatian toadflax is usually followed by some type of disturbance, so it can begin germinating. Relative Information: Dalmatian toadflax is a short-lived, perennial weed which grows ideally under the full sun. Robocker WC, 1968. Host plants for larvae and adults Linaria (toadflax), primarily Dalmatian Toadflax (Linaria dalmatica and L. genistifolia) (Tosevski et al. Robocker WC, 1970. 2011). Dalmation Toadflax (Linaria dalmatica) Description. It is common throughout England and Wales, though less frequent in Ireland. Dalmatian toadflax is an herbaceous short-lived perennial herb. Because of high genetic vari- ability, dalmatian toadflax is adapted to a wide variety of habitat conditions but favors well-drained, relatively coarse-textured soils (Lajeunesse 1999). Soils that have a neutral to slightly alkaline pH are needed. ... Dalmatian Toadflax, Broadleaf Toadflax, Smooth Toadflax, Wild Snapdragon, Yellow Toadflax, Butter-and-eggs, ... Alberta, Canada. The Toadflax grows wild in most parts of Europe, on dry banks, by the wayside, in meadows by hedge sides, and upon the borders of fields. A prolific seed producer, it reproduces/spreads by seed and underground root stocks. It has also been introduced and is now common in North America. Control of dalmatian toadflax. Seed characteristics and seedling emergence of Dalmatian toadflax. "The program has been a great success so far as a bio-control agent to help keep the population of the Dalmatian toadflax in check," explained Skye Eriksen, an interpretive guide. A short-lived perennial that reproduces both by seed and creeping roots. Growth. Dalmatian Toadflax ('Linaria dalmatica') Damage to Dalmatian toadflax caused by the biocontrol agent Mecinus janthiniformis: Biocontrol agents available for Russian knapweed ('Rhaponticum repens') Five-year impact of the leafy spurge biocontrol agent, Aphthona lacertosa, at a successful release site in M.D. In Scotland, it is found, as a rule, only in the southern counties. Seeds do not require a dormancy period before germinating and can remain viable in the soil up to ten years.