Poisonous Plant Quiz

ButtercupThat's right! Buttercup is a yellow flowered weed which is very common throughout North America, particularly in wet areas. Buttercup include tall (2.5 feet), creeping, meadow and celery leafed varieties.

Buttercup contain irritant juices that severely injure the digestive system. Sap from stems can cause inflammation and blistering on skin or mucous membranes and even around the hooves of horses used to harvest. Note: poison is inactive when buttercup is dried and included in hay.

Symptoms from ingestion include:

  • mouth blisters cause drooling and loss of appetite
  • colic
  • bloody urine
  • diarrhea
  • colic
  • twitching of the eyelids
  • loud breathing
  • weak pulse

There is no known antidote for the poison ranunculin found in the buttercup varieties. 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:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca

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