Poisonous Plant Quiz

Tansy RagwortSorry! That's the wrong answer. This is Tansy Ragwort. The yellow flowers of the Tansy Ragwort flower from July to October; the flowers give off an unpleasant odour. Tansy Ragwort is found throughout North America in pastures, hayfields, waste areas and roadsides.

Tansy Ragwort contains liver-damaging alkaloids which cause liver cells to expand, then die.

Symptoms include:

  • weakness
  • liver failure
  • high temperature
  • incoordination
  • yellow mucous membranes

No known anti-dote for this alkaloid based toxin. Efforts should be concentrated on prevention through pasture management.

A veterinarian should be consulted immediately for supportive treatment to reduce the damage caused by ingestion of poisonous plants.

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For more information:
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E-mail: ag.info.omafra@ontario.ca

Author: Penny Lawlis - Animal Care Specialist/OMAFRA
Creation Date: Not Available
Last Reviewed: November 2003