Aconitum spp.

Aconitum spp. is toxic to horses. The reported severity is severe. Also known as Monkshoods, Baneberries, Cohoshes, and Winter Aconites and Columbian Monkshood.

horses

Mild Moderate Severe Critical

If your animal ate this plant, call your veterinarian now, or one of these services.

What do I do right now?
  • Australia
    Animal Poisons Helpline 1300 869 738 24 hours, every day · From $75
  • Austria
    Vergiftungsinformationszentrale 01 406 43 43 24 hours, every day
  • Belgium
    Centre Antipoisons 070 245 245 08:00 to 22:00 on weekdays, 10:00 to 22:00 at weekends · Human calls come first. The centre has no funding for animal work.
  • Canada
    Pet Poison Helpline (855) 764-7661 24 hours, every day · $89 for each incident
  • France
    Centre National d'Informations Toxicologiques Vétérinaires 04 78 87 10 40 08:30 to midnight, every day
  • Germany
    Giftinformationszentrum Bonn 0228 19240 24 hours, every day · Germany has no dedicated animal service. Human calls come first, so an animal call can wait.
  • Ireland

    Ireland has no animal poison service for owners. Call your veterinarian. An Irish veterinarian can consult the Veterinary Poisons Information Service in the United Kingdom.

  • Italy
    Centro Antiveleni di Milano 02 6610 1029 24 hours, every day
  • Netherlands
    Nationaal Vergiftigingen Informatie Centrum 088 755 8000 Veterinarians only 24 hours, every day · Call your veterinarian. Your veterinarian calls this line.
  • New Zealand
    Animal Poisons Helpline 0800 869 738 24 hours, every day
  • Sweden

    Giftinformationscentralen stopped answering questions about animals on 1 July 2018. Call your veterinarian or an animal hospital.

  • Switzerland
    Tox Info Suisse 145 24 hours, every day · From outside Switzerland, call +41 44 251 51 51.
  • United Kingdom
    Animal PoisonLine 01202 509 000 24 hours, every day · £35 from 08:00 to 20:00 Monday to Friday, £45 at other times
    Veterinary Poisons Information Service 020 7305 5055 Veterinarians only 24 hours, every day · A members only service. Your veterinarian calls this line.
  • United States
    ASPCA Animal Poison Control Center (888) 426-4435 24 hours, every day · A consultation fee applies
    Pet Poison Helpline (855) 764-7661 24 hours, every day · $89 for each incident

Symptoms to watch for

Drooling Bloat Cardiac Arrhythmias Difficulty Breathing Weakness Incoordination Paralysis

The color of each symptom follows the severity scale above.

About

Aconitum, also known as aconite, monkshood, wolfsbane, devil's helmet, or blue rocket, is a genus of over 250 species of flowering plants belonging to the family Ranunculaceae. These herbaceous, frequently toxic perennial plants are chiefly native to the mountainous parts of the Northern Hemisphere in North America, Europe, and Asia, growing in the moisture-retentive but well-draining soils of mountain meadows.

How this plant poisons

Members of the genus Aconitum contain substantial amounts of highly toxic alkaloids (such as aconitine, mesaconitine, and pseudaconitine), especially in their roots and tubers. Ingestion of as little as 2 mg of aconitine or 1 g of plant material may cause death from respiratory paralysis or heart failure. Mild to severe toxicity may be experienced from skin contact. Symptoms such as numbness and tingling and feelings of coldness in the face and extremities usually appear within one hour of exposure, and sometimes almost immediately. Other features may include nausea, vomiting, diarrhea, sweating, dizziness, difficulty in breathing, headache, and confusion. In severe poisoning, sensations of tingling and numbness spreads to the limbs, and pronounced motor weakness occurs. Cardiovascular features include low blood pressure and abnormal heart rhythm. Death usually occurs within two to six hours in fatal poisoning. Treatment of poisoning involves close monitoring of blood pressure and cardiac rhythm. Gastrointestinal decontamination with activated charcoal can be used if administered within an hour or so of ingestion. Drugs such as atropine, lidocaine, and amiodarone may be used to treat dysrhythmias. Cardiopulmonary bypass, Extracorporeal membrane oxygenation, and hemoperfusion may be useful if symptoms are refractory to treatment with these drugs.

Common Names

  • Monkshoods
  • Baneberries, Cohoshes, and Winter Aconites
  • Columbian Monkshood
  • Monk's-Hood
  • Northern Wolfsbane
  • Yellow-Flowered Monkshood
  • Larkspurleaf Monkshood
  • Winter Aconites
  • Slenderleaf Monkshood
  • Twining Monkshood
  • Yellow Monkshood
  • Wolfsbane
  • Manchurian Monkshood
  • Southern Blue Monkshood
  • Flame Lily
  • Baikal Monkshood
  • Fischer Monkshood
  • Tree Spinach
  • Branched Monkshood
  • Hybrid Monkshood
  • Aconite-Leaved Buttercup
  • Northern Blue Monkshood

Also recorded as Aconite, Aconites, Monks-Hood and monk's-hoods.

Facts

Family
Ranunculaceae
Duration
Perennial
Growth habit
Forb/herb
In the wild
SE, FR, AT, DE, CH, RU + more
Source
Wikipedia, CC BY-SA 4.0

Countries with the most wild observations, from GBIF data.