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Yellow Toadflax

(Linaria vulgaris)

Yellow Toadflax (Linaria vulgaris)
2B, widespread in Montana

Quick ID

  • Yellow flower with snapdragon-like orange throat; dense clusters
  • Woody and red-hued base becoming increasingly succulent and green at apex
  • Stems up to one to three feet in height
Yellow Toadflax yellow snapdragon flower with dark yellow center
Yellow Toadflax

Video Information


Weed Images

Canadian thistle rosettes
yellow toadflax leaves - long slender green leaves
yellow toadflax blossom - yellow drooping petals
yellow toadflax field infestation -  several yellow flowered plants in a field

Weed Specifications

Weed Info
Type Information
Toxicity Non-toxic
Best Management Practices High application rates and repeated treatments of herbicides; some biological controls have been approved.
Habitat Common in gravelly or sandy soil along railroads, roads, in yards, gardens, dry fields and rangeland, pastures, cultivated fields, and grain fields.
Root Produces a taproot and creeping lateral roots.
Leaves Pale to silvery-green, narrow, linear, and roughly two inches in length with pointy ends.
Lifespan Short-lived perennial herb
Similar Looking Plants Dalmatian toadflax, golden banner (false lupine) and at early stages leafy spurge.
Important Information It is still sold as an ornamental by nurseries and seed companies under the common name “butter-and-eggs.”

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