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Top 10 Poisonous Plants of New Zealand

Top 10 Poisonous Plants of New Zealand

What are New Zealand's top poisonous plants?Some of the most toxic, and most common poisonous plants in New Zealand

Plant Calls:
From 1998 to 2002, plant poisoning enquiries made up 9.6% of total calls.

Plant calls were the third most frequent exposure enquiry (following therapeutic and household agent exposures)

62% of plant calls were due to child exposures.

Top poisonous plants were determined based on:
Plants that are consistently involved in unintentional poisonings
Plants result in the manifestation of symptoms
The following were assessed and quantified:
  • Toxicity of plant
  • Number of calls received
  • Age of patient
  • Symptoms presenting

Top 10 Plants
  • Arum Lily
  • Black Nightshade
  • Euphorbia
  • Iris
  • Oleander
  • Agapanthus
  • Ongaonga (New Zealand Tree Nettle)
  • Hemlock
  • Foxglove
  • Rhus

Related Resources
National Poisons Centre: Poisonous Plants in New Zealand - A National Poisons Centre brochure detailing poisonous plant information as well as first aid and prevention information
Plants in New Zealand Poisonous To Children - A pamphlet detailing many plants available in New Zealand that are poisonous to children
Safety In Pre-School Centres: Plants to Avoid - A pamphlet listing a number of poisonous plants which should not be grown in pre-school centres

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University of Otago NZ National Poisons Centre

Last updated 17/03/2010

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