Introduced as an ornamental from Europe, this plant is a creeping perennial with stems from two to four feet tall. The flowers are snapdragon-shaped and bright yellow with orange centers; the leaves are waxy and heart-shaped. Dalmatian toadflax is especially well adapted to arid sites and can spread rapidly once established.
Because of its deep, extensive root system and heavy seed production, this plant is difficult to manage. It is common in Garfield County, especially in Glenwood Springs and along Three Mile and Four Mile creeks. There is also one isolated patch up Slaughter Gulch north of Peach Valley.