Dalmatian and yellow toadflax (Figwort Family) are natives of the Mediterranean region. They were introduced to North America as ornamentals and folk remedies. These weeds are rhizomatous, perennial forbs with bright yellow snapdragon-shaped flowers. Mature Dalma­tian toadflax plants have 1 to 25 erect floral stems and grow 2 to 3 feet or taller. Leaves and stems are waxy with a whitish to bluish shade of green. Heart-shaped leaves are alternate and clasp around some­what woody stems. Mature yellow toadflax plants are 1 to 3 feet tall. Leaves are narrow, lance-shaped and alternate on the stem. Stems and leaves are pale green in color.

Habitat

Dalmatian toadflax can adapt to a wide range of environmental conditions. It is most commonly found in rangelands, clear cuts, pastures, waste ar­eas, and along roadsides and fences. Toadflax favors disturbed ground, but it frequently occurs in excel­lent condition rangeland. Established toadflax is an intense competitor for limited soil resources. Veg­etative shoots are not dependent on soil moisture and resist competition from native plants. Native plant community condition, therefore, may be in­effective in slowing Dalamatian toadflax expansion. It is important to locate new invasions early.

Photo by Steve Dewey

DALMATIAN TOADFLAX FACT SHEET (pdf)