Equis ISSN 2398-2977

Tansy (Tanacetum vulgare)

Contributor(s): Anthony Knight, Vetstream Ltd

Introduction

  • Commonly grown herb that has escaped in many areas to become a weed.
  • Native to Europe and widespread in North America. 
  • Perennial, locally invasive, aromatic plant with alternate, pinnately dissected leaves having narrow toothed segments. 
  • Numerous flat-topped, tight heads of yellow flowers terminally on stems up to 1 m in height   Tansy (Tanacetum vulgare)  .
  • Used as an anthelmintic and abortifacient in human herbal medications for decades.
  • Plant is aromatic and generally distasteful to animals.
  • Evidence that tansy causes abortion in pregnant mares is lacking.
  • Tansy is not generally considered a toxic plant for animals.
  • Tansy should not be confused with Tansy Ragwort (Senecio jacobaea)   Ragwort (Senecio jacobaea)  , a highly poisonous plant to horses and other animals.

Toxicity

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Clinical signs

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Treatment

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Prognosis

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Further Reading

Publications

Refereed papers

Other sources of information

  • McGuffin M, Hobbs C, Upton R & Godberg A (1997) Botanical Safety Handbook. CRC Press, UK.
  • Turner N J & Szczawinski A F (1991) Common Poisonous Plants and Mushrooms of North America. Timber Press, USA.
  • Kingsbury J M (1964) Poisonous Plants of the United States and Canada. Prentice-Hall Inc. Englewood Cliffs New Jersey.

Organization(s)


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