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Dirty dozen invaders of the Southwest
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Yellow Toadflax

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Yellow Toadflax
Scrophulariaceae (Figwort Family)
Class A Weed
Invasive Ornamentals Management
Description: Yellow toadflax, a creeping perennial, grows 1 to 2 feet tall. It reproduces by seed and underground rootstocks. Stems are smooth with minimal branching. Leaves are narrow, 2.5 or more inches long, nearly opposite, strap-like and pointed at both ends.Flowers are 1 inch long with a bearded, orange throat. Seeds are produced in brown, globe shaped capsules.
Origin:Europe and Asia; introduced into the U.S. in the mid-1800s as an ornamental; often referred to as "butter and eggs" Key Characteristics:
  • Creeping perennial root system
  • Long, strap-like leaves
  • Snapdragon-like flower
Distribution:Scatterd plants and populations have been identified in several northern countries. As an introduced ornamental, it is still recognized as a potential desirable species, but it is not. Due to its aggresive and competitve nature, it will quickly become the dominant species.