Coriaria arborea

Coriaria arborea

''Coriaria arborea'', one of several species called tutu, is a common, highly poisonous shrub native to New Zealand.

''C. arborea'' is found in scrub and open areas from the coast to the hills across the country. A straggling plant, it can grow to 20 ft high. The leaves grow opposite on slender stems while flowers are arranged in drooping racemes.

Tutu is capable of nitrogen fixation.
Coriaria arborea (Coriariaceae) Waipoua forest, New Zealand. Dec 31, 2016.
The most poisonous plant in New Zealand. Coriaria arborea,Geotagged,New Zealand,Summer

Defense

The toxin tutin is found in all parts of the plant apart from the fleshy flower petals. Tutu has been responsible for the most cases of livestock poisoning by any New Zealand plant. Dogs and even two circus elephants have been poisoned by the plant. On occasion human poisoning has occurred through consuming honey where bees had interacted with the plant.

In 2014, a man tramping in Auckland, New Zealand looking to try the taste of the plant supplejack, mistakenly attempted to eat an asparagus looking young shoot of tutu. He said he did not actually eat any of the plant because of the revolting taste, but within hours he was having a tonic-clonic seizure that dislocated his arm, induced convulsions and made breathing difficult. Academic experts concluded he was lucky to survive the poisoning. A year later he had recovered fully apart from having some trouble with his memory.

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderCucurbitales
FamilyCoriariaceae
GenusCoriaria
SpeciesC. arborea
Photographed in
New Zealand