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Dalmation Toadflax

(Linaria dalmatica)

Dalmation Toadflax (Linaria dalmatica)
2B, widespread in Montana

Quick ID

  • Yellow, snapdragon-type flowers with orange throat and singular spur
  • Waxy, heart-shaped leaves with pale green to blue-green color
  • Branched and waxy stems
  • Hairless and succulent with a bluish to whitish cast
  • Stem height up to three feet tall
Plant long green stem yellow flowers NPS Photo, Public domain, via Wikimedia Commons
Dalmation Toadflax

Video Information


Weed Images

Dalmation Toadflax rosettes
Dalmation Toadflax leaf
Dalmation Toadflax blossom yellow petals
Dalmation Toadflax infestation

Weed Specifications

Weed Info
Type Information
Toxicity Mildly toxic to cattle.
Best Management Practices Cultural controls may improve effectiveness of herbicidal, biological, and grazing control when used in integrated fashion.
Habitat Most problematic in dry grasslands, along roadsides, and on disturbed sites with coarse, well-draining soils.
Root Extensive reproductive root system with taproot and horizontal roots.
Leaves Alternate, heart-shaped, and smooth edged.
Lifespan Perennial
Similar Looking Plants Yellow toadflax
Important Information Seed production is important for their survival given their typical lifespan of three to five years. Seeds can persist for up to ten years in the soil, enabling regenerating following control management strategies.

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